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Pupil patents

      

This page is updated frequently with new Pupil-related patent applications.




 Camera assembly with filter providing different effective entrance pupil sizes based on light type patent thumbnailCamera assembly with filter providing different effective entrance pupil sizes based on light type
A camera assembly includes a lens barrel assembly comprising at least one optical element arranged about an optical axis. The camera assembly further includes a filter substantially coaxial with the optical axis.
Google Inc.


 Eye pose identification using eye features patent thumbnailEye pose identification using eye features
Systems and methods for eye pose identification using features of an eye are described. Embodiments of the systems and methods can include segmenting an iris of an eye in the eye image to obtain pupillary and limbic boundaries of the eye, determining two angular coordinates (e.g., pitch and yaw) of an eye pose using the pupillary and limbic boundaries of the eye, identifying an eye feature of the eye (e.g., an iris feature or a scleral feature), determining a third angular coordinate (e.g., roll) of the eye pose using the identified eye feature, and utilizing the eye pose measurement for display of an image or a biometric application.
Magic Leap, Inc.


 Illumination optical system, exposure apparatus and device manufacturing method patent thumbnailIllumination optical system, exposure apparatus and device manufacturing method
The illumination optical system for illuminating an illumination target surface with light from a light source is provided with a polarization converting member which converts a polarization state of incident light to form a pupil intensity distribution in a predetermined polarization state on an illumination pupil of the illumination optical system; and a phase modulating member which is arranged in the optical path on the illumination target surface side with respect to the polarization converting member and which transmits light from the pupil intensity distribution so as to convert linearly polarized light thereof polarized in a first direction, into required elliptically polarized light and maintain a polarization state of linearly polarized light polarized in a second direction (x-direction or y-direction) obliquely intersecting with the first direction, in order to reduce influence of retardation caused by a subsequent optical system between the polarization converting member and the illumination target surface.. .
Nikon Corporation


 Wearable electronic display patent thumbnailWearable electronic display
A wearable electronic display includes an eyewear frame having a front frame portion including a brow bar with lens frame rims extending from and below the brow bar. A display module can be mounted to the eyewear frame and have a microdisplay for generating images.
Kopin Corporation


 Pupil detection system, gaze detection system, pupil detection method, and pupil detection program patent thumbnailPupil detection system, gaze detection system, pupil detection method, and pupil detection program
A pupil detection system according to an embodiment includes a vector calculation unit configured to calculate a plurality of candidate vectors each connecting a corneal sphere center and a pupil center by a stereo method based on a first pupil image of a subject which is picked up by a first camera and a second pupil image of the subject which is picked up by a second camera, and a determination unit configured to select, from among the plurality of candidate vectors, a candidate vector satisfying a vector condition in which an angle between the pupil center and a reference line is equal to or less than a predetermined threshold and determine that a pupil is located at a pupil center corresponding to the selected candidate vector.. .
National University Corporation Shizuoka University


 Imaging device patent thumbnailImaging device
An imaging device according to an aspect of the invention includes an imaging optical system (12) having a wide-angle optical system and a telephoto optical system which are provided in different regions, a directional sensor (17) that has a plurality of pixels including photoelectric conversion elements which are two-dimensionally arranged, pupil-divides light beams which are incident through the wide-angle optical system and the telephoto optical system, and selectively receives the beams, a pan/tilt mechanism (32) that moves a direction of an imaging optical axis of the telephoto optical system with respect to a direction of an imaging optical axis of the wide-angle optical system, and an image acquisition unit (22) that acquires a wide-angle image received from the directional sensor (17) through the wide-angle optical system and a telephoto image received from the directional sensor (17) through the telephoto optical system.. .
Fujifilm Corporation


 Iris recognition patent thumbnailIris recognition
A method may comprise obtaining image data of a plurality of digital image frames captured of an assumed eye having an iris and a pupil while illuminating the assumed eye from different directions; obtaining comparison data dependent on similarities in parts of image data of at least two of the plurality of digital image frames corresponding to an area of interest of the assumed eye; and automatically determining, on the basis of the comparison data, presence of a verification feature in the assumed eye indicating a real eye.. .
Microsoft Technology Licensing, Llc


 Iris recognition patent thumbnailIris recognition
A method may comprise obtaining image data of a plurality of digital image frames captured of an assumed eye having an iris and a pupil while illuminating the assumed eye from different directions; and automatically detecting a characteristic feature of the iris on the basis of image data of the at least two of the plurality of digital image frames.. .
Microsoft Technology Licensing, Llc


 Arrangement for determining the pupil center patent thumbnailArrangement for determining the pupil center
The invention is directed to an arrangement for determining the pupil center of an eye of a person in an image. The arrangement includes a touch-sensitive display device for displaying the image with the eye of the person and a gesture recognition unit for recognizing a first predetermined gesture in response to a touching of the touch-sensitive display device by a user.
Carl Zeiss Vision International Gmbh


 Eye gaze tracking using binocular fixation constraints patent thumbnailEye gaze tracking using binocular fixation constraints
The subject disclosure is generally directed towards eye gaze detection based upon both eyes being fixated on the same gaze location. In one aspect, an image including a subject's left and right eyes is captured, from which left and right glint and pupil center information are extracted.
Microsoft Technology Licensing, Llc


Head mounted electronic device

An electronic device is provided. The electronic device mountable on a head of a user includes a display, a sensor configured to capture an image, a processor electrically connected with the display and the sensor, and a memory electrically connected with the processor, wherein the memory includes instructions, which, when executed, cause the processor to provide a guide screen that guides the user to gaze at a front of a display, to capture an image, in which at least a portion of an eye of the user is included, using the sensor, and to determine a wearing state of the electronic device based on at least one of a location of the eye or a location of a pupil of the user displayed in the captured image..
Samsung Electronics Co., Ltd.

Customized wavefront-guided methods, systems, and devices to correct higher-order aberration

Methods and systems for manufacturing a wavefront-guided scleral lens prosthetic device customized for an eye of a patient include obtaining a first scleral lens prosthetic device with a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone configured to align with the eye's sclera, collecting measurements of any offset and/or rotation of the first scleral lens prosthetic device relative to the eye's pupil and of any aberrations, particularly higher-order aberrations, generating a wavefront-guided profile from the measurements, and fabricating a second scleral lens prosthetic device with the profile on a surface of a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone customized to align with the eye's sclera.. .
University Of Rochester

Illumination optical unit for projection lithography and hollow waveguide component therefor

An illumination optical unit for projection lithography guides illumination light toward an object field and has a mirror array including a multiplicity of individual mirrors which are tiltable independently. A condenser optical unit transfers an arrangement plane of the mirror array into a pupil plane of the illumination optical unit.
Carl Zeiss Smt Gmbh

Adjustable pupil distance wearable display

Disclosed herein are devices and methods to provide a display including a projection system and a removable lenses including a holographic optical element to receive light and reflect the light to an exit pupil. Each of the removable lenses may comprise a holographic optical element in a different position of the lens to change the position of the exit pupil.

Reducing stray light transmission in near eye display using resonant grating filter

A near eye optical display system comprising a waveguide and diffractive optical elements (does) for in-coupling, exit pupil expansion, and out-coupling reduces the transmission of stray light in the system using a doubly-periodic surface relief microstructure that combines a guided-mode resonant filter with bragg reflectance. Such resonant grating filter may be configured with grooves and/or ridges of different widths that are located on the waveguide that have respective sub-periods that match bragg reflectance periods for particular wavelengths.

Diffractive optical element with integrated in-coupling, exit pupil expansion, and out-coupling

In an optical near eye display system, a monolithic three-dimensional optical microstructure is formed by a waveguide substrate with at least one doe having grating regions that integrate the functions of in-coupling of incident light into the waveguide, exit pupil expansion in one or two directions, and out-coupling of light from the waveguide within a single optical element. An in-coupling region of the doe couples the incident light into the waveguide and to a beam steering and out-coupling region.

Spatially separated exit pupils in a head mounted display

Disclosed herein are devices and methods to provide multiple eyeboxes from multiple input pupils. In particular, a projection system can direct light from multiple input pupils to a holographic optical element.

Variable reflectivity image combiner for wearable displays

Disclosed herein are devices and methods to provide an appodized holographic combiner lens having a varying reflectivity profile. In particular, a lens to reflect light from a number of input pupils to a number of exit pupils may be provided, where the lens reflects incident light in varying levels based on where on the lens the light is incident..

Microscope system

A microscope system as an optical microscope system for observing a specimen includes: an imaging optical system that forms an image of transmitted light or reflected light from the specimen; an illumination light source that illuminates illumination light on the specimen; an illumination optical system that has a first spatial light modulation element, which changes intensity distribution of the illumination light at a conjugate position of a pupil of the imaging optical system, and illuminates light, which is originated from the illumination light source, on the specimen; an image sensor that detects light through the imaging optical system; and a calculation section that calculates the intensity distribution of the illumination light appropriate for observation of the specimen on the basis of the intensity distribution of the illumination light formed by the first spatial light modulation element and output data detected by the image sensor.. .
Nikon Corporation

Ophthalmologic irrigation solutions and method

Solutions for perioperative intraocular application by continuous irrigation during ophthalmologic procedures are provided. These solutions include multiple agents that act to inhibit inflammation, inhibit pain, effect mydriasis (dilation of the pupil), and/or decrease intraocular pressure, wherein the multiple agents are selected to target multiple molecular targets to achieve multiple differing physiologic functions, and are included in dilute concentrations in a balanced salt solution carrier..
Omeros Corporation

Centering technique for a cutting laser for refractive ophthalmic surgery

According to certain embodiments, a method for laser cutting treatment of a human eye comprises: determining position information of a pupil center of the eye in relation to a point of minimal corneal thickness in an undeformed state of the eye; locating the point of minimal corneal thickness in a flattened state of the eye, in which the eye is deformed by contact with a patient adapter of a laser device; and aligning a pulse firing pattern for laser radiation pulses of the laser device, based on a position of the located point of minimal corneal thickness and the determined position information. In embodiments, the pulse firing pattern represents, for example, a lenticular or doughnut-shaped intracorneal tissue volume which is to be removed from the cornea of the eye..
Novartis Ag

Wildlife deterrence using mono-colored light to induce neurophysical behavioral responses in animals

Wildlife deterrence methods and systems use mono-colored light within a sensitivity range of a short-wavelength-sensitive (sws) photoreceptor of a species to be deterred, such as an avian species. The mono-colored light may be generated by one or more high brightness mono-colored light emitting diodes (leds) and may be within 25 nm of a peak absorption wavelength of the sws photoreceptor of the species.
Lite Enterprises Inc.

Imaging device

In a preferred aspect of the invention, an imaging optical system having a wide-angle optical system and a telephoto optical system which are provided in different regions is provided. A directional sensor that has a plurality of pixels including photoelectric conversion elements which are two-dimensionally arranged pupil-divides light beams which are incident through the wide-angle optical system and the telephoto optical system, and selectively receives the light beams.
Fujifilm Corporation

Metrology method and apparatus, computer program and lithographic system

Disclosed is a metrology apparatus for measuring a parameter of a lithographic process, and associated computer program and method. The metrology apparatus comprises an optical system for measuring a target on a substrate by illuminating the target with measurement radiation and detecting the measurement radiation scattered by the target; and an array of lenses.
Asml Netherlands B.v.

Method of detecting constriction of pupils, apparatus, and storage medium

A method of detecting constriction of the pupils includes: registering one or more motion illusion pattern images or one or more luminance values of the one or more motion illusion pattern images, the one or more motion illusion pattern images including a first motion illusion pattern image which had caused motion illusion to a specific user; displaying the registered one or more motion illusion pattern images or one or more motion illusion pattern images created based on the registered one or more luminance values on a display device; and determining whether the motion illusion is occurred to the specific user based on the displaying.. .
Fujitsu Limited

Image processing apparatus, image processing method, and image capture apparatus and control method thereof

Disclosed are an image processing apparatus that can efficiently suppress the data amount of data indicating a spatial distribution and an angular distribution of light intensity and a control method of the same. The image processing apparatus obtains data indicating the spatial distribution and the angular distribution of the intensity of light beams that have passed through partial pupil areas obtained by dividing the exit pupil of an imaging optical system into a predetermined number.
Canon Kabushiki Kaisha

Method and performing fourier transformation

Provided is a method for performing a fourier transformation for generating a computer-generated holographic (cgh) image. The method includes generating first intermediate data by performing a first fft calculation that relates to coordinates of a pupil of a user with respect to input image data; generating second intermediate data by calculating a light concentration effect correction term for correcting a light concentration effect occurring at the pupil of the user and multiplying the first intermediate data by the light concentration effect correction term; and performing a second fft calculation that relates to the coordinates of the pupil of the user with respect to the second intermediate data..
Samsung Electronics Co., Ltd.

Line-of-sight detection

A line-of-sight detection method includes detecting an eye region of a subject from an image, determining whether a position of a boundary between a pupil and an iris is detected from the image based on a brightness change in the eye region, executing, in accordance with a result of the determining, at least one of first processing in which a position of a center of the pupil is detected based on an outline of the pupil and second processing in which the position of the center of the pupil is detected based on another outline of the iris, and detecting a line of sight of the subject based on the position of the center of the pupil detected by the at least one of the first processing and the second processing.. .
Fujitsu Limited

Method for locating center of pupil and electronic apparatus

A method and an electronic apparatus for locating the center of a pupil are provided. The method includes: obtaining a glint-free image including a pupil; generating a gradient magnitude graph and a gradient orientation graph based on the glint-free image; sifting a plurality of first pixels from the gradient magnitude graph, and finding a plurality of second pixels corresponding to the plurality of first pixels in the gradient orientation graph; taking a negative gradient orientation to each of the second pixels to generate a gradient emission graph including a plurality of emissions; defining a center of the pupil in the glint-free image based on the plurality of emissions in the gradient emission graph..
Winbond Electronics Corp.

Illumination optical assembly, exposure device, and device manufacturing method

An illumination optical system includes a fly's-eye lens having a back focal plane arranged on a pupil plane of the illumination optical system or in a vicinity of the pupil plane; a first spatial light modulator which is arranged on an incident side of the fly's-eye lens and which includes a plurality of first mirror elements; a first optical system arranged in an optical path between the first spatial light modulator and the fly's-eye lens; a second spatial light modulator arranged in an optical path between the first optical system and the fly's-eye lens and which includes a plurality of second mirror elements; and a polarizing element arranged in the optical path between the first spatial light modulator and the fly's-eye lens.. .
Nikon Corporation

Five-mirror afocal wide field of view optical system

A five-mirror all-reflective afocal anastigmat. In one example, a five mirror afocal anastigmat includes five mirrors arranged to sequentially reflect from one another electromagnetic radiation received via a system entrance pupil to produce a collimated output beam of the electromagnetic radiation at a system exit pupil, the five mirrors consisting of three positive-powered mirrors and two negative-powered mirrors, wherein optical powers of the five mirrors are balanced to achieve a flat field condition at the system exit pupil..
Raytheon Company

Prosthetic iris preparation method

A method and system of producing a digitally printed iris structure for an artificial eye by using suitable digital graphics software, the appearance of a dilating pupil/collarette is created within the combined center portion/inner ring area of a prosthetic eye—in that a pupil appears to dilate from a small diameter in bright light to a comparatively large diameter in dimmer or darker light. The process of creating such effect is a unique extension of the knowledge that certain colors and pigments in bright light are most apparent, and in dark light tend to appear grey to black..

Gaze tracker and tracking gaze thereof

The present disclosure provides a gaze tracker and a gaze tracking method. The gaze tracker includes: an image acquirer to acquire eye images of a user using two or more cameras and two or more lightings; and a gaze calculator which detects a lighting reflection point from each eye image to extract a cornea central point, detects a pupil central point from each eye image, and calculates a gaze vector.
Hyundai Motor Company

Pupillary response and eye anterior assessment

Disclosed herein is a pupillary response scanning device and methods for use in performing swinging flashlight test, brightness saturation test, color discrimination test, and color blindness test. The device may include: a housing configured to provide a first isolated eye enclosure for a first eye and a second isolated eye enclosure for a second eye of a patient; one or more visible light sources, one or more infrared light sources, one or more imaging devices in each isolated eye enclosure; and a control system that may be configured for manipulating the visible light sources, infrared light sources and the imaging devices..

Compressive sensing for metrology

Disclosed are apparatus and methods for determining a structure or process parameter value of a target of interest on a semiconductor wafer. A plurality of collection patterns are defined for a spatial light beam controller positioned at a pupil image plane of a metrology tool.
Kla-tencor Corporation

Optical module, optical device and wearable display device

The present application relates to an optical module, an optical device and a wearable display device. The wearable display device includes: a miniature display module, configured to output a display source; the optical module, configured to magnify the display source and project the display source to an exit pupil.
Shenzhen Royole Technologies Co. Ltd.

Method and eye tracking

A method and apparatus for eye tracking are disclosed. The method may include obtaining feature points corresponding to at least one portion of a face area of the user in an image, determining an inner area of an eye area of a first eye of the user based on the feature points, determining a pupil area of the user based on a pixel value of at least one pixel of the inner area, and determining an eye position of the user based on a position value of each pixel of the pupil area..
Samsung Electronics Co., Ltd.

Magnifying device

A magnifying device including an optical system is described. The optical system includes an exit pupil, a reflective polarizer proximate the exit pupil, a partial reflector disposed adjacent the reflective polarizer opposite the exit pupil, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector.
3m Innovative Properties Company

Eye projection system

An eye projection system is disclosed, including an image generator and an eye projection optical module. The image generator is adapted to obtain data indicative of an image, produce a plurality of light beam portions corresponding to pixels of the image, adjust the intensity of each light beam portion in accordance with a value of a pixel of the image corresponding thereto and direct the light beam portion to propagate along a general optical propagation path towards the eye projection optical module with a projection angle αscn, relative to the general optical propagation path, which is determined in accordance with a location of the respective pixel in the image.
Eyeway Vision Ltd.

Diffractive optical element using polarization rotation grating for in-coupling

In an optical display system that includes a waveguide with multiple diffractive optical elements (does), an in-coupling doe couples light into the waveguide, an intermediate doe provides exit pupil expansion in a first direction, and an out-coupling doe provides exit pupil expansion in a second direction and couples light out of the waveguide. The in-coupling doe is configured with two portions—a first portion includes a grating to rotate a polarization state of in-coupled light while a second portion couples light into the waveguide without modulation of the polarization state.

Light guide device and virtual image display apparatus

A light guide device may be incorporated into a virtual image display apparatus, and functionally includes a light-incident part for entrance of picture lights, a light guide part that guides the picture lights via the light-incident part, and a light-exiting part that outputs the picture lights from the light guide part to a position of an eye. In the light guide device, light guide that enables non-diffraction virtual image formation is performed with respect to lateral first directions and a pupil size is enlarged by first and second diffraction optical elements with respect to longitudinal second directions..
Seiko Epson Corporation

Dual-pupil re-imaging optical systems

Dual-pupil, dual spectral band wide field-of-view re-imaged refractive optical imaging systems. In one example an optical imaging system includes a dual-band front objective lens group configured to receive electromagnetic radiation over the field-of-view of the optical imaging system, to form a first pupil, and to direct the electromagnetic radiation through the first pupil, the electromagnetic radiation including first and second non-overlapping spectral bands, and the field-of-view spanning at least 45°×45°, and a re-imaging refractive optical sub-system configured to receive the electromagnetic radiation via the first pupil, to form at least one intermediate image plane, and to focus the electromagnetic radiation via at least one second pupil onto at least one final image plane to form a first image from the first spectral band and a second image from the second spectral band.
Raytheon Company

Surgical apparatus and use thereof

A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion.
Ravi Nallakrishnan Revocable Trust

Surgical apparatus and use thereof

A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion.
Ravi Nallakrishnan Revocable Trust

Method and system for cognitive function testing

Cognitive function testing. At least some of example embodiments are methods including performing a cognitive function test on a patient without calibrating pupil position of the patient.
Eyeguide, Inc.

Systems and methods for broad line fundus imaging

Systems and methods for broad line fundus imaging (blfi), an imaging approach that is a hybrid between confocal and widefield imaging systems, are presented. These systems and methods are focused on improving the quality and signal of broad line fundus images or imaging methods to create high contrast and high resolution fundus images.
Carl Zeiss Meditec Ag

Hood for an ophthalmic device

The present invention describes a rectangular parabolic hood for blocking accommodation and reducing depth of focus to offset the negative affects of extraneous light and visual stimulus during examination of the pupil using ophthalmic instruments.. .

Eye mounted displays and systems, with variable resolution

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.
Spy Eye, Llc

Process-sensitive metrology systems and methods

A lithography system includes an illumination source and a set of projection optics. The illumination source directs a beam of illumination from an off-axis illumination pole to a pattern mask.
Kla-tencor Corporation

Illumination optical assembly, exposure apparatus, and device manufacturing method

An illumination optical system can form a pupil intensity distribution with a desired beam profile. The illumination optical system for illuminating an illumination target surface with light from a light source is provided with a spatial light modulator which has a plurality of optical elements arrayed on a predetermined surface and individually controlled and which variably forms a light intensity distribution on an illumination pupil of the illumination optical system; a divergence angle providing member which is arranged in a conjugate space including a surface optically conjugate with the predetermined surface and which provides a divergence angle to an incident beam and emits the beam; and a polarizing member which is arranged at a position in the vicinity of the predetermined surface or in the conjugate space and which changes a polarization state of a partial beam of a propagating beam propagating in an optical path..
Nikon Corporation

Apparatus and optical beam scanning microscopy

An optical beam scanning microscopy apparatus includes a light source adapted to emit an optical beam (2) and a microscope objective (1) adapted for focusing the optical beam (2) in an object plane (11). The microscopy apparatus includes first and second reflecting optical elements (m-x1, m-x2) disposed in series on the optical path of the optical beam (2) between the light source and the microscope objective (1), first elements of angular tilting (21, 25) adapted for tilting the first reflecting optical elements (m-x1, m-xy1) according to a first predetermined rotation angle (rx1), and second elements of angular tilting (22, 26) adapted for tilting the second reflecting optical elements (m-x2, m-xy2) according to a second rotation angle (rx2), in such a way as to angularly tilt the axis (12) of the optical beam (2) by pivoting about the center (o) of the pupil of the microscope objective (1)..
Horiba Jobin Yvon Sas



Pupil topics:
  • Aberration
  • Imaging System
  • Nose Surgery
  • Eyeglasses
  • Refractive Error
  • Dysphotopsia
  • Multifocal
  • Traumatic Brain Injury
  • Physiologic
  • Postoperative
  • Ocular Lens
  • Intraocular
  • Intraocular Lens
  • Anterior Chamber
  • Image Capture


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    This listing is a sample listing of patent applications related to Pupil for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Pupil with additional patents listed. Browse our RSS directory or Search for other possible listings.


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