|| List of recent Pupil-related patents
| Cognitive load assessment for digital documents|
An embodiment of the invention includes a system that tracks a user's pupillary response to content located on a web page. The system then determines a cognitive load for the user that is based on the measured response.
| Plenoptic otoscope|
A plenoptic otoscope enables three-dimensional and/or spectral imaging of the inside of the ear to assist in improved diagnosis of inflammations and infections. The plenoptic otoscope includes a primary imaging system and a plenoptic sensor.
| Iris data extraction|
A process for extracting iris data for biometric identification includes a thresholding method where the thresholds are selected according to a nonparametric approach that considers the grey scale and does not require classifying pixels as edge or non-edge pixels. An eye image is first acquired, where the eye image has component images including an iris image with an inner boundary and an outer boundary.
| Optical system with catadioptric optical subsystem|
An optical system to form an image on an image plane includes, a catadioptric optical subsystem configured to collect light from an object plane; and a refractive optical subsystem configured to form the image on the image plane, the catadioptric and refractive optical subsystems being arranged in order from the object plane to the image plane along an optical axis of the optical system. A baffle to shut off light traveling toward the image plane without being reflected by the catadioptric optical subsystem is placed in the optical system, in order to form a shielded portion in a center of an exit pupil plane of the optical system, and the catadioptric optical subsystem includes a partially transparent surface around the optical axis of the optical system so that transmissivity of a region, other than the shielded portion, at the exit pupil plane varies in a radial direction of the exit pupil plane..
| Apparatus for imaging an eye|
A slit lamp mounted eye imaging a slit lamp integrated, a handheld, oct integrated, or attached to a separate chinrest-joystick assembly apparatus for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more leds, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image.
| Imaging apparatus|
An imaging apparatus performs a focus detecting operation with an image sensor including a photoelectric conversion portion that has a pupil-dividing function. The imaging apparatus increases a line addition number according to a target exposure value corresponding to a pixel dynamic range that is variable depending on an exposure setting value.
| Systems using eye mounted displays|
A display device is mounted on and/or inside the eye. The eye mounted display contains multiple sub-displays, each of which projects light to different retinal positions within a portion of the retina corresponding to the sub-display.
|Ophthalmological device for treating eye tissue|
An ophthalmological device (10) for treating eye tissue (6) with laser pulses (l) comprises a projection optical unit (3) for focused projection of the laser pulses (l), a scanner system (1) for dynamically deflecting the laser pulses (l) and a zoom system (20), which is arranged between the projection optical unit (3) and the scanner system (1) and which is configured to adjust the focused projection of the laser pulses (l) in the projection direction (r) in different zoom settings (z). The ophthalmological device (10) moreover comprises a displacement device (4), which is configured to displace the scanner system (1) depending on the zoom setting (z) of the zoom system (20).
|Zoom lens and image pickup apparatus including the same|
A zoom lens including a plurality of lens units, and two variable stops having an aperture diameter changing for zooming, the lens units being configured to change intervals between the respective neighboring lens units for zooming, the zoom lens having an f-number which is constant over an entire zoom range, the two variable stops including a first variable stop disposed on an object side, and a second variable stop disposed on an image side. A distance (sw1) from the first variable stop to an image plane at a wide-angle end, a distance (sw2) from the second variable stop to the image plane at the wide-angle end, and a distance (tkw) from an exit pupil position to the image plane at the wide-angle end are each set appropriately..
|Imaging apparatus and imaging method|
There is provided an imaging apparatus including: an imaging device that includes a plurality of pairs of phase difference detection pixels, where a plurality of phase difference lines along pupil division directions is disposed in an orthogonal direction which is orthogonal to the pupil division direction; a detection unit that detects an abnormal value among output values, which are output by the phase difference detection pixels, on the basis of a result of comparison of the output values between the plurality of phase difference lines; and a phase difference line determination unit that determines, as used lines, a plurality of phase difference lines, which are used in phase difference detection, among the plurality of phase difference lines in a phase difference detection region, on the basis of a detection result which is obtained by the detection unit.. .
|Optical monitoring device for an imaging system|
An optical monitoring device for an optical imaging system having a focal plane, an optical axis and an entry pupil, forming an image of a scene substantially at infinity on an image detector disposed substantially in the focal plane, comprises: a virtually point-like emission source at the periphery of the detector and substantially in the focal plane; a reflecting element with a plane surface upstream of the imaging system relative to the direction of light rays coming from the scene, and according to a position and inclination where a monitoring image of the source produced by the optical system and reflected by the reflecting element is substantially in the focal plane on a detection element connected to a monitoring image analyzer allowing potential optical defects to be identified; the reflecting element having an annular shape allowing passage of light rays coming from the scene and passing through the entry pupil.. .
|Apparatus and method for transmitted light illumination for light microscopes and microscope system|
The invention relates to an apparatus for transmitted light illumination for light microscopes, in particular stereo microscopes or macroscopes, having changing effective entrance pupil of an objective. The apparatus has a light source for emitting an illuminating light beam, a housing, in which the light source is arranged, a holding device for holding a sample to be examined and at least one diaphragm edge for trimming the illuminating light beam, wherein the diaphragm edge extends transversely to an optical axis of a light microscope, which can be positioned in an operating state on the device for transmitted light illumination, and wherein a beam path of the illuminating light between the diaphragm edge and the sample held by the holding device is free from adjustable beam focussing components.
|Dynamic adjustment of multimode lightfield imaging system using exposure condition and filter position|
An adjustable multimode lightfield imaging system. A non-homogeneous filter module is positioned at the pupil plane of the lightfield imaging system and provides the multimode capability.
|Image processing apparatus, image processing method and program, and image pickup apparatus including image processing apparatus|
The image processing apparatus processes an image signal obtained from an image pickup element, using an image pickup optical system arranged to obtain directional traveling information of object image light corresponding to a pupil division area of a photographing lens. The apparatus includes: a unit of setting a focal position at which the refocused image is generated; and a unit of correcting an image signal of a defect pixel of the image pickup element using an image signal of other pixel.
|Image pickup apparatus and control method thereof|
An image pickup apparatus for simultaneously realizing a phase difference af and a contrast af decides a shift amount of an image signal corresponding to a focus evaluation position every exit pupil area, generates an image corresponding to an image plane position by executing an arithmetic operation processing based on the decided shift amount to the image signal, calculates an evaluation value of a contrast of the generated image, and calculates an evaluation value of a correlation between the images corresponding to the different exit pupil areas in the generated image.. .
|Apparatus and method for displaying hologram image|
Provided is an apparatus and method for displaying a hologram image that may display a hologram image created by tracking a position of a pupil of a user using an acquired user image, tracking a position of a light source of a reflection hologram image that is reflected from appearance of the user, and by correcting a position of a light source of a display hologram image based on the position of the pupil of the user.. .
|Pupillometric assessment of language comprehension|
The present invention is a method for assessing a patient's linguistic comprehension using a pupil response system comprising at least one pupillometer configured to measure the patient's pupil responses. The method includes (a) providing the patient with a list of verbal stimuli comprising at least two sets of verbal stimuli, each set of verbal stimuli comprising one or more verbal stimuli; wherein the two sets of the verbal stimuli differ substantially from each other in terms of the difficulty level; (b) presenting to the patient one verbal stimulus at a time from the list of verbal stimuli; (c) measuring and recording the patient's pupil response data for a period of time ranging from 200 milliseconds to 10 seconds during the presentation of each stimulus; and (d) analyzing the pupil response data to assess the patient's linguistic comprehension..
|Method and a device for monitoring pupil|
The invention provides a method of monitoring the pupil of a subject, wherein a sensor for observing the pupil is arranged between the cornea and the eyelid covering the cornea, the sensor is powered through the eyelid, and the pupil-observation signals delivered by the sensor are collected through the eyelid.. .
|Video presence method and system|
A video presence method and system. The method includes: receiving a multi-viewpoint three-dimensional video signal from a remote end; determining multiple viewpoint image streams in the multi-viewpoint three-dimensional video signal; and alternately displaying the multiple viewpoint image streams in sequence in a viewing area, where a distance between two neighboring viewpoints in the multiple viewpoint image streams displayed in the viewing area is a pupillary distance.
|Method and configuration for the optical detection of an illuminated specimen|
A method for the optical detection of an illuminated specimen, wherein the illuminating light impinges in a spatially structured manner in at least one plane on the specimen and several images of the specimen are acquired by a detector in different positions of the structure on the specimen. An optical sectional image and/or an image with enhanced resolution is then calculated.
|Imaging apparatus and method for controlling same|
Provided is an imaging apparatus that includes a plurality of imaging elements having a plurality of pds, where each of the plurality of pds photoelectrically converts a light flux having passed through a different region of an exit pupil of an imaging optical system and output a left-eye image/right-eye image. The imaging apparatus generates a composite image based on the left-eye image and the right-eye image, calculates a positional shift amount of the left-eye image relative to a position of the composite image as a parallax amount, and stores information regarding the parallax amount as a parallax map.
In an imaging apparatus according to an aspect of the present invention, the light-shielding member performing light shielding so that the light beam passing through the second region does not enter the first light-receiving element is provided only to the first light-receiving element. That is, no light-shielding member is provided to the second light-receiving element.
|System for the physiological evaluation of brain function|
The oculokinetic device is used to test an individual to evaluate brain function including, but not limited to, identifying the presence of a traumatic brain injury or central nervous system disease which manifests itself through abnormal ocular responses to stimuli by using the high-speed tracking of an individual's eye movements (monocular or binocular, and either conjugate or disconjugate in horizontal, vertical, or torsional directions or combinations thereof), pupil size and reactivity, eyelid position, and blink parameters, and optionally along with other ocular elements, i.e., eyeball pressure, temperature, blood flow, etc. The eye movement stimulus protocol uses a target that moves in any direction of a two- or three-dimensional plane and may use a color display or geometric shapes.
|Binocular viewing device|
An optical device for viewing distant objects. The device includes an objective system and at least one ocular and achieves a magnifying power of greater than 0.6 mm−1 times the entrance pupil diameter in millimeters with an exit pupil of at least 2 mm images from the objective system are detected by a sensor, processed and recorded.
|Variable imaging system with an objective of fixed focal length|
A variable imaging system which, starting from the object end, includes an objective of fixed focal length, at least one afocal zoom system, and a tube lens system. An afocal system of fixed magnification is arranged on the beam path between the objective and the afocal zoom system.
|Large diopter range real time sequential wavefront sensor|
Example embodiments of a large dynamic range sequential wavefront sensor for vision correction or assessment procedures are disclosed. An example embodiment optically relays a wavefront from an eye pupil or corneal plane to a wavefront sampling plane in such a manner that somewhere in the relaying process, the wavefront beam from the eye within a large eye diopter range is made to reside within a desired physical dimension over a certain axial distance range in a wavefront image space and/or a fourier transform space.
|Optical guide for collimated images with optical beam doubler, and associated optical device|
The general field of the invention is that of optical guides for collimated images comprising a first and a second image conductor functioning by total reflection, each conductor comprising a plurality of plates that are planar, semi-reflective, mutually parallel and inclined with respect to the plane of the external faces of the image conductors. The two conductors are arranged so as to deliver a collimated image to a large pupil.
|Three piece prism eye-piece|
A prism eye piece and optical system including a prism eye piece and microdisplay are described herein. The prism eye piece may include three prisms.
|Interference measuring apparatus and interference measuring method|
An interference measuring apparatus measuring a distance to a surface for inspection is provided. The interference measuring apparatus includes a light dividing unit that divides each of the plurality of light fluxes into light to be inspected and reference light; an objective lens that transmits light to be inspected; a photoelectric conversion element that receives interference light between the light to be inspected and the reference light for each of the plurality of light fluxes and output an interference signal obtained by converting the interference light into an electrical signal; and a calculation unit that calculates the distance to the surface to be inspected based on a phase obtained by subtracting a defocused wavefront from a phase component of a complex amplitude at the pupil position of the objective lens which transmitted light to be inspected for each of the plurality of light fluxes by using the interference signal..
|Augmented reality system using moving ceiling transparent display for ship and method for enabling same|
In an augmented reality system using a moving ceiling transparent display for a ship, according to the present invention, the moving ceiling transparent display is movably installed on the ceiling of a steering house of the ship, and the system comprises: a recognition portion for recognizing the location of the ship and the direction of the head and the pupils of a sailor; a reception portion for receiving external image data from an external landscape database with respect to an external landscape, in accordance with the location of the ship and the direction of the head and the pupils of the sailor; a matching portion for adjusting a match between the external image data, which is received by the receiving portion, and an actual external image through the window; and an output portion for outputting through the transparent display information on the external image data, which is adjusted through the matching portion, on the location of the actual external image.. .
|System for the measurement of the interpupillary distance using a device equipped with a display and a camera|
A system for measuring the interpupillary distance of two eyes of a face using a device equipped with a display and a camera. For example, a guide marker (or guide markers) is displayed on a reflective display, and an image is captured using the camera when the reflection of the face is aligned with the guide marker.
An optical apparatus includes: laser; objective that irradiates a sample with laser light; phase-modulation spatial light modulator that is located at a pupil conjugate position of the objective and modulates a phase of the laser light; scan unit that scans the sample with the laser light; detector that detects observation light from the sample; image generating unit that generates a sample image according to a signal from the detector and control information of the scan unit; and controlling unit that sets for the modulator a modulation amount of the phase of laser light in accordance with a pattern to be formed on the sample using the laser light. According to the pattern to be formed on the sample and a pattern of irradiation with the laser light obtained from the image generated by the image generating unit, the controlling unit corrects the modulation amount that is set for the modulator..
An imaging apparatus includes a first light-shielding member formed in a predetermined optical member included in a photographing optical system, the first light-shielding member dividing a pupil region of the photographing optical system into a first region and a second region and a second light-shielding member letting only a light beam passing through the first region enter a first light-receiving element and letting only a light beam passing through the second region enter a second light-receiving element other than the first light-receiving element.. .
|Application of electromagnetic radiation to the human iris|
Rather than rely solely upon pupillary occlusion or tracking of eye movement to protect the fundus from accidental exposure to electromagnetic radiation, the present invention also utilizes an electromagnetic radiation pathway with a profile such that the energy density at the iris is greater than the energy density at the posterior portion of the eye. This disparity in energy density allows for efficacy at the anterior iris treatment site, without injury to the fundus..
|User authentication apparatus and method using movement of pupil|
A user authentication apparatus and method using movement of a pupil is capable of rapidly and accurately performing authentication with high security by storing the respective frequencies of objects mechanically moving on a screen and security keys corresponding thereto, comparing a frequency detected from movement of a pupil gazing at any object with a frequency of the object, and performing the authentication based on a corresponding security key when the detected frequency is included in a predetermined range.. .
|Apodization for pupil imaging scatterometry|
The disclosure is directed to various apodization schemes for pupil imaging scatterometry. In some embodiments, the system includes an apodizer disposed within a pupil plane of the illumination path.
|Retinal imaging device|
A retinal imaging device and illumination module. The illumination module includes a light source to provide an incident beam along an illumination axis, a condenser lens at a spaced apart distance from the light source for condensing the incident beam and emanating a condensed incident beam, a transparent plate at a spaced apart distance from the condenser lens, wherein the transparent plate comprises a light absorber, at least one projections lens system to focus the condensed incident beam, a shield at a spaced apart distance from the projection lens system to yield a first partially blocked beam to form a comea illumination doughnut, and a perforated mirror comprising a hollow cylinder.
|Image pickup apparatus, control method thereof, and program|
An image pickup apparatus which can perform an af of a high speed and a high focusing precision by simultaneously realizing a phase difference af and a contrast af, decides arrange where a contrast evaluation can be performed on the basis of a correspondence relation between each pixel of an image pickup element which is restricted by pupil division means provided for restricting light of an optical image of an object which enters each pixel of the image pickup element to light from a specific exit pupil area of a photographing lens and the specific exit pupil area of the photographing lens, and decides a focus evaluation value of the object in accordance with the decided range from a contrast focus position or a correlation focus position.. .
|Focus detection apparatus, image pickup apparatus, and focus detection method|
A focus detection apparatus includes an image pickup element including first and second pixels that detect light beams passing through different exit pupils in an image pickup optical system, an estimating unit that estimates a moving charge amount between the first and second pixels using first and second luminance signals, a correcting unit that corrects the first and second luminance signals based on an estimation result, a defocus amount calculating unit that obtains a defocus amount by using correction values of the first and second luminance signals, and a focus detecting unit that performs focus detection of a phase difference method using the defocus amount, and the moving charge amount is a charge amount which moves from one to the other of the first and second pixels as a charge amount accumulated in the one of the pixels comes close to a saturated charge amount.. .
|Electrode sensor assembly for electroretinography and pattern electroretinography|
A multilayer electrode sensor assembly for electroretinography and pattern electroretinography formed as a thin strip to fit under a lower eyelid and contain an electrode in line with the pupil of an eye with signals detected carried through an integrally formed thin conductive strip to a terminal to be connected to an electrical conductor for carrying such signals to an analyzer.. .
|Solid-state image sensor and range finder using the same|
The invention provides a solid-state image sensor including a plurality of pixels, at least one pixel of the plurality of the pixels having a plurality of photoelectric conversion portions and a pupil-dividing member that causes light that passes through an exit pupil and is incident on a region defined by the member itself to be incident on the plurality of the photoelectric conversion portions, wherein potential profiles with respect to electric charge of the plurality of the photoelectric conversion portions change in a perpendicular line direction of the substrate, and wherein a distance between potential centroids in a section perpendicular to the perpendicular line of the plurality of the photoelectric conversion portions is longer on a back side that is a side opposite to a light incidence side than on the light incidence side.. .
|Focus detection apparatus and method, and image capturing apparatus|
A focus detection apparatus comprises: an image sensor configured to receive a plurality of beams having passed through different exit pupil regions of an imaging optical system and output a pair of image signals corresponding to the different exit pupil regions; a calculation unit configured to obtain, from the pair of image signals, a spatial frequency at which a phase difference between a pair of images is minimized, and obtain an image shift amount between the pair of image signals from the spatial frequency; and a focus control unit configured to perform focus control by a phase difference detection method based on the image shift amount obtained by the calculation unit.. .
|Image sensor and image sensing apparatus|
An image sensor comprises a plurality of pixels, and each pixel having: a plurality of photoelectric conversion units configured to receive light fluxes that pass through different exit pupil regions of an optical system disposed on an object side of the image sensor and accumulate charges, respectively; a separation portion configured to separate the photoelectric conversion units; and setting means configured to selectively set an electric potential of the separation portion to any one of a plurality of electric potentials. Signals can be separately read out from the photoelectric conversion units.
|Image processing method, image processing apparatus, image pickup apparatus, and storage medium storing image processing program|
The image processing method includes acquiring an input image produced by an image pickup system including at least one imaging optical system and causing light rays from a same point in an object space to respectively enter different image pickup pixels depending on light ray passing areas of a pupil through which the respective light rays pass, performing a shaping process including at least one of an image restoration process to restore a degraded image and a luminance estimation process to estimate a luminance of a saturated area, a reconstruction process to reconstruct a new image different from the input image, and performing a blur addition process to add an image blur component to an addition target image. The method performs the shaping process before the reconstruction process and the blur addition process..
|Method for diagnosis of and therapy for a subject having a central nervous system disorder|
A method is provided of systematically evaluating and treating dynamic autonomic dysregulation in a subject. The method includes having the subject sequentially assume a plurality of distinct postures that may include, for example, walking, standing, sitting or supine.
|Illumination optical system and microscope|
Is satisfied where l1, l2 and l3 represent non-negative real numbers and θ1, θ2 and θ3 represent polar angles to express, in a polar coordinate system, positions (l1,θ1), (l2,θ2) and (l3,θ3) of the three light source areas in the pupil plane having a diameter of na/n in which na represents a numerical aperture of the illumination optical system and n represents a refractive index of a medium.. .
|Ophthalmic apparatus and alignment determination method|
An ophthalmic apparatus that determines whether alignment with a subject eye is complete using an observation image of an anterior ocular segment of the subject eye obtained through a split prism determines whether or not the alignment is a success or failure based on a position of a pupil image on respective lines of a line pair that are parallel to a boundary of the split prism and are equidistant from the boundary in the observation image. The ophthalmic apparatus determines the success or failure of alignment for a plurality of line pairs whose distances from the boundary are different, and determines whether or not the alignment is complete based on the obtained determination results..
|Scleral contact lens manufacturing|
The different illustrative embodiments provide a method, computer program product, and apparatus for manufacturing a scleral contact lens. A number of dimensions for the scleral lens is generated based on a shape of an eye.
|Means for controlling the progression of myopia|
A contact lens for use in controlling or retarding the progression of myopia in an eye has a central optical zone approximating the normal diameter of the pupil of the eye that gives clear central vision at distance for the wearer. An annular peripheral optical zone that is substantially outside the diameter of the pupil is formed around the central optical zone with greater refractive power than that of the central zone so that oblique rays entering the eye through the peripheral optical zone will be brought to focus at a focal plane that is substantially on or anterior to the peripheral region of the retina.
|Head mounted display, and image displaying method in head mounted display|
Disclosed herein is a head mounted display including: (a) an eyeglasses frame-like frame to be mounted to an observer's head; (b) an image display device; (c) an image sensing device mounted to the frame; and (d) a correction section, wherein the image display device includes (b-1) an image generating device, and (b-2) see-through type light guide section which is mounted to the image generating device, on which beams emitted from the image generating device are incident, through which the beams are guided, and from which the beams are emitted toward an observer's pupil.. .
|Spatially distributed laser resonator|
A distributed resonator laser system using retro-reflecting elements, in which spatially separated retroreflecting elements define respectively a power transmitting and a power receiving unit. The retroreflectors have no point of inversion, so that an incident beam is reflected back along a path essentially coincident with that of the incident beam.
|Ophthalmologic visualization system|
A method determines the position and/or radius of the limbus and/or the position and/or radius of the pupil of a patient eye. In the method, an image of the patient eye is obtained and a plurality of different ring-shaped comparison objects having respective radii and respective centers are provided.
|Focus detection apparatus, image pickup apparatus, image pickup system and focus detection method|
A focus detection apparatus which includes an image pickup element having first and second photoelectric conversion elements sharing a lens, wherein the first and second photoelectric conversion elements perform a photoelectric conversion of images passing through different exit pupils of an image pickup optical system so as to output a focus detection signal used for focusing by a phase difference detection method, the focus detection apparatus includes an image shift amount calculator which performs a correlation calculation by using each of signal values obtained independently from the first and second photoelectric conversion elements and calculate an image shift amount, a defocus amount calculator which calculates a defocus amount by multiplying the image shift amount by a coefficient, and a coefficient correcting portion which corrects the coefficient in accordance with the signal value obtained from the first photoelectric conversion element or the second photoelectric conversion element.. .
|Systems and methods for configuring the display resolution of an electronic device based on distance and user presbyopia|
Systems and methods dynamically configure a display (104) of an electronic device (102) to a desired display resolution and/or a magnification factor without noticeable impact on the user viewing experience. According to certain aspects, the distance between a user (100) and the display is measured (1002), and the desired display resolution is determined (1006) based on the distance.
|Display section determination|
A glasses may include a pupil movement sensor configured to detect a movement of a pupil within an eye, a processor configured to determine a display section based, at least in part, on the movement of the pupil, and a display configured to display the determined display section.. .
|Systems and methods for configuring the display resolution of an electronic device based on distance|
Systems and methods dynamically configure a display (104) of an electronic device (102) to a desired display resolution without noticeable impact on the user viewing experience. According to certain aspects, the distance between a user (100) and the display is measured (1002), and the desired display resolution is determined (1008) based on the distance.
|Phase characterization of targets|
Systems and methods are provided which derive target characteristics from interferometry images taken at multiple phase differences between target beams and reference beams yielding the interferometry images. The illumination of the target and the reference has a coherence length of less than 30 microns to enable scanning the phase through the coherence length of the illumination.
|Eyeball movement monitoring method and device|
An apparatus and method for monitoring the movement of eyeball comprises collecting an image frame of pupil; extracting a pupil pixel set (s); extracting a boundary value of the pupil pixel set; setting a center point based on the boundary value and dividing the pupil pixel set into four quadrant sets (s1, s2, s3 and s4); calculating the coordinate of cross points of the two straight lines and traversing points in the four quadrants, wherein the cross points form a pupil center coordinate set (s5); and calculating an average value of horizontal and vertical directions according to the pupil center coordinate set (s5).. .
|Image sensor and image capturing apparatus|
An image sensor includes a plurality of image forming pixels which receive light beams passing through an imaging pupil area of an imaging optical system, a plurality of first focus detecting pixels which receive light beams passing through a first pupil area smaller than the imaging pupil area, and a plurality of second focus detecting pixels which receive light beams passing through a second pupil area smaller than the imaging pupil area. The geometric centre of the first pupil area differs from the geometric centre of the second pupil area.
|Image sensor and image capturing apparatus|
An image capturing apparatus comprises an image sensor including a plurality of image forming pixels and a lens which is arranged for the plurality of image forming pixels. Each of the image forming pixels includes a plurality of divided photo-electric conversion units, and the plurality of photo-electric conversion units have a function of photo-electrically converting a plurality of images having passed through different exit pupils of the imaging optical system, and outputting focus detection signals.
|Pupil detection device|
There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value.
|Eyebox adjustment for interpupillary distance|
In embodiments of eyebox adjustment for interpupillary distance, a first optical lens receives light of an image at a projected orientation of the light, and deviates the light by a deviation angle from the projected orientation of the light. A second optical lens receives the deviated light of the image from the first optical lens at the deviation angle, and alters the deviated light back to the projected orientation of the light for viewing the image.
|Compact, low dispersion, and low aberration adaptive optics scanning system|
An adaptive optics scanning system using a beam projection module with four or more axes of motion that can project and control the position and angle of a beam of light to or from an adaptive optics element. The adaptive optics scanning system is compact in size, overcoming the challenges of a traditional lens and mirror based pupil relay design.
|Tunable achromatizing optical apparatus, methods, and applications|
A tunable, achromatizing optical system for use with a broadband imaging modality system for imaging objects having a range of longitudinal chromatic aberration (lca) values. The optical system includes an achromatizing component and a parfocal component, for example, a zoom system.
|Ophthalmic apparatus and wavefront aberration correction method therefor|
An ophthalmic apparatus which captures an image of a retina by illuminating the fundus of an eye to be examined with light from a light source through a measuring optical path is provided. The ophthalmic apparatus divides light from the light source into light propagating to the measuring optical path and light propagating to a reference optical path different from the measuring optical path, obtains interference light by composing return light returned along the reference optical path and return light from the measuring optical path, images interference fringes generated by the interference light composed at a position conjugate with the position of the pupil of the eye, and corrects a wavefront aberration of light passing through the measuring optical path by using correction data for correcting a wavefront aberration of the eye which is obtained from a captured image of interference fringes..
|Focus detecting apparatus, lens apparatus including the same, image pickup apparatus, and method of detecting defocus amount|
A focus detector, which detects a defocus amount from a displacement amount between images formed by a pair of light beams split from an image pickup system so as to pass through a pair of pupil regions, includes a pair of lenses and phase difference sensors, a memory unit for storing an image displacement amount between the image signals on the phase difference sensors in an in-focus state, a waveform read out controller for setting pixels to be calculated for the phase difference sensors, respectively, based on the image displacement amount, a correlation calculator for calculating a correlation amount between the image signals from the pixels to be calculated, a waveform degree-of-conformity calculator for calculating a waveform degree-of-conformity based on the image signals obtained from the pixels to be calculated, and a defocus calculator for calculating the defocus amount based on the correlation amount and the waveform degree-of-conformity.. .
|Circuit to adjust backlighting for a display device|
A display device to measure ambient light brightness may include a camera to provide an image, a controller to detect a face from the image and to measure brightness from a ratio of the iris diameter to the pupil diameter di/dp, and an actuator to stepwise change the backlighting of the display device based upon the measured brightness.. .
|Method and systems for laser treatment of presbyopia using offset imaging|
An ophthalmic surgery system and method for treating presbyopia by performing ablative photodecomposition of the corneal surface. The offset image of a variable aperture, such as a variable width slit and variable diameter iris diaphragm, is scanned in a preselected pattern to perform ablative sculpting of predetermined portions of a corneal surface.
|Pupil-only photochromic contact lenses displaying desirable optics and comfort|
A method for making a hydrogel, photochromic contact lens including supplying a first lens composition comprising a contact lens monomer and a photochromic material to a front contact lens mold and supplying a second lens composition to said contact lens mold wherein the viscosity of said first composition is at least about 1000 cp greater than the viscosity of said second contact lens composition, and the makeup of said second composition matches the of said first composition to reduce strain between said compositions of the resulting lens.. .
|Apparatus and method for eye tracking|
A gaze tracking apparatus and method are provided that may calculate a three-dimensional (3d) position of a user using at least two wide angle cameras, may perform panning, tilting, and focusing based on position information of the user and eye region detection information, using a narrow angle camera, may detect pupil center information and corneal reflected light information from an eye image acquired through an operation of the narrow angle camera, and may finally calculate gaze position information from the pupil center information and the corneal reflected light information.. .
There is provided a scanning microscope so configured that when the position of the exit pupil of an imaging optical system and a position conjugate to the exit pupil change, the position of the rotation center of a scanned light flux is moved and follows the changed exit pupil position. A scanning microscope includes a light source, an objective lens, and a scan unit.