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High Contrast-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Photonic crystal memory type all-optical "aor" logic gate
October 12, 2017 - N°20170293201

The present invention discloses a photonic crystal memory type all-optical “aor” logic gate, and including photonic crystal structure; the photonic crystal structure includes two input ports, an output port and an idle port; a first input end and a second input end of the photonic crystal structure are respectively connected with a signal a and a ...
Photonic crystal all-optical anti-interference self-locking trigger switch
October 12, 2017 - N°20170293075

The present invention discloses a photonic crystal all-optical anti-interference self-locking trigger switch which includes a photonic crystal structure unit, an optical switch, an absorbing load and an internal or external reference light source, wherein said photonic crystal structure unit includes two signal-input ends, a signal-output end; a first input end of said photonic crystal structure unit is connected to a ...
High contrast inverse polarizer
Moxtek, Inc.
October 05, 2017 - N°20170285237

An embedded, inverse wire-grid polarizer (wgp) includes ribs 13 located over a surface of a transparent substrate 11, gaps 16 between the ribs 13, and a fill-layer 15 substantially filling the gaps 16. The fill-layer has a relatively high index of refraction, such as greater than 1. 4. At a wavelength of light incident upon the wgp, e∥ transmission can be greater than e⊥ transmission. ...
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High contrast, glass-based, writeable/erasable front projection screens
Corning Incorporated
September 21, 2017 - N°20170269466

High contrast, glass-based, writeable/erasable front projection screens are provided. The screens include a transparent glass sheet which has a front surface and a back surface separated by a distance d. The back surface is in optical contact with a diffusing element. During use of the projection screen, the glass sheet transmits image light from a projector to the diffusing ...
Display device, module, and electronic device
Semiconductor Energy Laboratory Co., Ltd.
September 21, 2017 - N°20170269440

A high-definition liquid crystal display device is provided. A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with a high contrast ratio and display quality is provided. A liquid crystal display device capable of being driven at a low voltage is provided. The display device includes, between a pair of substrates, a ...
Minimum background estimation for peripheral equalization
Koninklijke Philips N.v.
September 21, 2017 - N°20170265830

The invention relates to peripheral equalization during a mammography x-ray examination. High contrast tissue pixel values are removed from the background estimate by finding the minimum intensity values of the pixel located in the neighbourhood, which have approximately the same distance to the skin line. Thus, high attenuating pixel values may be removed from the estimate and replaced by lower ...
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Quantum dot liquid crystal display device
Shenzhen China Star Optoelectronics Technology Co. Ltd.
September 07, 2017 - N°20170255055

The present invention provides a quantum dot liquid crystal display device. The quantum dot liquid crystal display device has a color filter substrate (10) that includes a first base plate (11), a quantum dot color filter (12) arranged on one side of the first base plate (11) that is adjacent to a liquid crystal layer (30), a one-way light guide film (13) arranged on one side ...
Method and system for biometric recognition
Eyelock Llc
August 24, 2017 - N°20170243075

High quality, high contrast images of an iris and the face of a person are acquired in rapid succession in either sequence by a single sensor and one or more illuminators, preferably within less than one second of each other, by changing the data acquisition settings or illumination settings between each acquisition.
Method and apparatus for high contrast imaging
Omnitek Partners Llc
August 17, 2017 - N°20170237885

An apparatus for improving contrast in an image captured by an imaging sensor. The apparatus including: an objective optical system positioned in an optical path of illumination light on an object; an image sensor positioned in the optical path such that light from the objective optical system is incident on the image sensor; a device having a variable transparency positioned ...
Novel objective method for assessing high contrast resolution of image based on rayleigh criterion and ...
National Institute Of Metrology, China
July 06, 2017 - N°20170193656

The present invention relates to a novel objective method for assessing high contrast resolution of images based on rayleigh criterion and a testing operating method. The novel objective method for assessing high contrast resolution of images based on rayleigh criterion involves combining the rayleigh criterion with regional pixel intensity profiles for simultaneous application to high contrast resolution images of ct ...
Liquid crystal display panel
Shenzhen China Star Optoelectronics Technology Co. Ltd.
July 06, 2017 - N°20170192306

The present invention provides a liquid crystal display panel. The liquid crystal display panel includes a tft substrate and a cf substrate that are respectively provided with first and second alignment films that allow for vertical light alignment, so that after irradiation of ultraviolet light, the first alignment film and the second alignment film have alignment directions that are substantially ...
Infrared-light and low-light two-phase fusion night-vision sighting device
Huntercraft Limited
June 22, 2017 - N°20170176139

The present invention relates to the technical field of sighting device, and specifically relates to an infrared-light and low-light two-phase fusion night-vision sighting device. The night-vision sighting device comprises a field-of-view obtaining unit, a two-phase fusion unit, a control unit and a display unit, the two-phase fusion unit in the night-vision sighting device can perform infrared-light and low-light fusion processing ...
High contrast projection screen
Huntercraft Limited
June 01, 2017 - N°20170153450

An image display system includes a reflecting screen that has a reflecting surface. The reflecting surface includes hologram which reflects narrow bands of spectrum of incident lights toward desired direction. A projection display system includes a reflecting mirror(s) with hologram so that the image can be projected nearly vertical or short distance. This invention can be used as a ...
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Interlayer film for laminated glass, and laminated glass
Sekisui Chemical Co., Ltd.
May 18, 2017 - N°20170136742

The present invention aims to provide an interlayer film for laminated glass which prevents a double image phenomenon in a specific area of laminated glass and enables display of high contrast images at a luminance within a certain range. The present invention also aims to provide a laminated glass including the interlayer film for laminated glass. The present invention relates ...
Hand held symbology reader illumination diffuser
Cognex Technology And Investment Llc
May 11, 2017 - N°20170132441

A hand held industrial identification symbol reader projects diffuse illumination onto a region of interest to produce high contrast images of symbols. The diffuse illumination is particularly well suited for producing images of symbols that are marked directly on objects. The diffuse illumination is created through the use of an optically translucent diffuser having a generally tapered shape that distributes ...
Monomer, polymer, resist composition, and patterning process
Shin-etsu Chemical Co., Ltd.
May 11, 2017 - N°20170131635

A monomer of formula (1a) or (1b) is provided wherein a is a polymerizable group, r1-r6 are monovalent hydrocarbon groups, x1 is a divalent hydrocarbon group, z1 is an aliphatic group, z2 forms an alicyclic group, k=0 or 1, m=1 or 2, n=1 to 4. A useful polymer is obtained by polymerizing the monomer. A resist composition comprising the polymer has improved ...
System and method for analysis of a sample
Lightwave Science, Inc.
May 04, 2017 - N°20170122969

A system including a light source, sampling tray, and a plurality of fiber optics positioned to achieve high contrast to improve accuracy and eliminate the need to rotate the sample. A composite light image from the fiber optics is fed to a spectrometer which converts the reflected light into a fingerprint corresponding to the concentration of at least one substance ...
Liquid crystal element
Lg Chem, Ltd.
April 20, 2017 - N°20170108740

The present application relates to a liquid crystal element and a use of the liquid crystal element. The exemplary liquid crystal element of the present application is, for example, an element capable of realizing a normally transparent mode, having a high contrast ratio, and being driven with a low driving voltage. Such a liquid crystal element may be applied in ...
Method of making a surgical instrument with high contrast marking
Depuy Ireland Unlimited Company
April 13, 2017 - N°20170100204

A method of marking a surgical instrument with a symbol formed in or on a smooth surface comprises forming a symbol in or on a smooth surface of the surgical instrument; and forming a plurality of angled surfaces over at least part of the area of the symbol. The angled surfaces define a plurality of parallel ridges and grooves in ...
Efficient, dynamic, high contrast lensing with applications to imaging, illumination and projection
Mtt Innovation Incorporated
March 23, 2017 - N°20170085846

A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image ...
Collimating metalenses and technologies incorporating the same
President And Fellows Of Harvard College
March 23, 2017 - N°20170082263

Metalenses and technologies incorporating the same are disclosed. In some embodiments, the metalenses are in the form of a hybrid multiregion collimating metalens that includes a first region and a second region, wherein the hybrid multiregion collimating metalens is configured to collimate (e. G., visible) light incident thereon. In some instances the first region includes an array of first unit ...
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