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7618486 |
Pigment dispersion composition for producing color filter and color filter for color imaging device produced using the same
Disclosed is a pigment dispersion composition for producing a color filter. The pigment dispersion composition comprises a pigment, a binder resin, a dispersant and a solvent. The pigment is a blue...
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7593598 |
System and method for efficient filter design through weighted difference of Gaussian filters
A method of designing filters for filtering digitized images includes constructing a set of difference-of-Gaussian (DoG) filters that partition a frequency space, forming a linear combination of...
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7588656 |
Thermal transfer imaging element and method of using same
The present invention pertains to a donor element comprising a support layer, a transfer layer supported by the support layer, and a second layer disposed between the support layer and the transfer...
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7586703 |
Sequential colour illumination system, method for producing a colour wheel for said system and a colour segment device
A sequential illumination system for a visual display unit has a light source emitting a polychromatic light beam towards the visual display unit within a wavelength range having at least three...
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7521006 |
Diimmonium compound and use thereof
Disclosed is a near-infrared absorbing compound which does not contain antimony or arsenic, and has excellent stability, especially excellent heat resistance, light resistance and moist heat...
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7517092 |
Method and system for dynamic gradient light filtering
A light filter for use in an optical system for displaying image. The light filter comprising, a substantially transparent substrate and an optical coating applied to the substrate. The optical...
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7495839 |
Lens with IR-cut function
A lens ( 10 ) and a method for forming the lens ( 10 ). The lens ( 10 ) including a base ( 12 ) with plurality of nano-particles ( 14 ) therein. The base ( 12 ) is made of glass. The nano-particles...
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7491939 |
Photosensitive sensor and applications in the automotive field
The invention concerns a sensor that is photosensitive vis-à-vis at least part of the radiation in the infrared range and at least part of the radiation in the visible range. This sensor is...
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7486455 |
Color wheel with segment fixing mechanisms, and manufacturing method of same
A color wheel comprises sectorial color filter segments and a support member. Protrusions are disposed at the support member and engaged with either through-holes or cavities as segment fixing...
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7483226 |
ND filter, manufacturing method thereof, and aperture device
An ND filter of a thin film type is formed on a transparent substrate, such that a light-absorbing film and a dielectric film are laminated on the transparent substrate. The transparent substrate...
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7481954 |
Composition for a light filtering material
A composition for a filter material includes a dye and possibly a polymer host. The dye includes a Co(II) compound, a Ni(II) compound or a mixture thereof. Filter material can have a transmittance...
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7474483 |
Structure of color elements for a color filter
A structure of color elements for a color filter. At least a first, second, and third color element are disposed in a delta-type arrangement. An overlapping portion is formed between two adjacent...
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7466552 |
Heat-radiating structure and plasma display device including the same
In a heat-radiating structure and a plasma display device including the same, an uneven shape is formed in a bed of a chassis base, and a heat sink is installed on a cover plate such that heat is...
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7453657 |
Color wheel
A color wheel including a motor body, a housing, a spacer and a color filter. In this case, the housing is set to a side of the central axis of the motor body. The spacer is placed over the...
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7440204 |
ND filter of optical film laminate type with carbon film coating
An ND filter is composed of a transparent substrate, a laminate of a light-absorbing film and a dielectric film formed on the transparent substrate, and a carbon film formed to clad a surface of...
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7417788 |
Optical logic device
The invention uses optically active dyes or other optically active materials to perform digital data processing and logic functions on optical data. The data is carried in pulses of photons of...
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7390094 |
Method and apparatus to achieve a neutral dark state in image projection systems
An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based...
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7388723 |
ND filter and light quantity diaphragming device including the same
A thin film type ND filter being inexpensive and excelling in durability. There is provided ND filter ( 0 ) comprising transparent substrate ( 1 ) and, superimposed thereon, light absorption films...
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7368161 |
Color stable pigmented polymeric films
Color-stable, pigmented optical bodies comprising a single or multiple layer core having at least one layer of a thermoplastic polymer material. The thermoplastic polymer material has dispersed...
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7357981 |
Optical filter
An optical filter comprising a transparent support having a tensile impact strength of 392 kJ/m 2 or more having provided thereon a filter layer having an absorption maximum in the range of from...
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7329981 |
Optical filter and display apparatus with the same
An optical filter applied to a display apparatus, disposes on a substrate with transparency and has a maximum absorption wavelength λ in a wavelength range of 575±20 nm in connection with a...
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7329856 |
Image sensor having integrated infrared-filtering optical device and related method
An image sensing device is disclosed having a die formed with an array of photosensing sites and a structure of optical material having infrared absorbing characteristics formed over the...
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7321186 |
Front filter, and plasma display apparatus having the same
Disclosed is a plasma display apparatus having the same in which an electromagnetic wave is not only shielded, but also a transmission rate can be secured. The front filter including: an...
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RE39979 |
Color wheel including light deflecting means
A color wheel includes lens structures, which are formed on a surface of a substrate opposite to a surface having filter sectors, and which have curved surfaces formed at their abutting ends and...
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7312434 |
Method of filtering spectral energy
A method is provided for suppressing a predetermined portion of an optical spectrum emanating from a light emitter. The optical spectrum illuminates an illumination area. The method includes the...
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7301264 |
Front plate and display device using same
Frusto-conical needle-shaped light guide paths are implanted on the surface of a display panel such that output light from display elements propagate through the needle-shaped light guide paths...
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7301012 |
Azo dye, image-forming coloring composition, ink for ink jet recording, heat-sensitive recording material, color toner and color filter
An azo dye comprising a coupler having a specific structure as a coupling component, an image-forming coloring composition comprising the azo dye, an ink for ink jet recording and an ink jet...
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7295392 |
Color wheel with aligned segments
A color wheel for use in projector systems comprises a disc shaped hub, rotatable around a central axis and color filter segments arranged radially to said central axis and affixed to said hub....
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7295391 |
ND filter for aperture device and aperture device comprising ND filter
This invention decreases deformation of a plastic substrate caused by thermal expansion and contraction in an evaporation process of forming a multi-layered film of an ND filter, thus helping...
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7294360 |
Conformal coatings for micro-optical elements, and method for making the same
A micro-optical element is produced through vapor deposition techniques, such as atomic layer deposition. An optical structure having a surface with uneven structures is exposed to one or more...
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7268961 |
Color wheel, and method and jig for producing same
In a color wheel comprising a plurality of color filter segments arranged so as to form a disk and a support member fixed to the color filter segments, the color filter segments are each outlined...
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7253977 |
Monolithic color wheel and process for fabrication of the same
A method for fabricating a monolithic color wheel. The method includes (a) preparing a square transparent substrate; (b) forming a plurality of color filters on the square transparent substrate;...
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7252391 |
Method of producing an image
A method of producing an image comprising impinging a beam of light on first region of a dynamic filter. The dynamic filter comprising at least two regions having different light transmission...
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7242543 |
Filter device
A filter device including a red filter unit, a green filter unit, a blue filter unit and at least one of a yellow filter unit, a cyan filter unit and a magenta filter unit is provided. Red light,...
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7242542 |
Filters of electronic displays
A filter of an electronic display device provides a clear image, the filter comprising an squarylium compound represent by formula (II):
wherein R 15 and R 17 independently represent a...
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7239790 |
Method for controlling attenuation of an optical element
A method for controlling the attenuation of an optical element. A base material, such as a resin, is selected from which to fabricate the optical element. The base material has an intrinsic...
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7239464 |
Absorption type multi-layer film ND filter
An absorption type multi-layer film ND filter having a substrate and an optical multi-layer member consisting essentially of metal layers each composed chiefly of nickel (Ni) and dielectric layers...
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7239001 |
Tunable optical filtering component
The invention relates to wavelength-selective and tunable optical filters for transmitting the light in a narrow optical spectral band, centered around an adjustable wavelength, and for blocking...
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7233450 |
Reflective color wheel
A reflective color wheel is adapted to receive composite source light provided by a light source, and includes a plurality of multi-layer light-reflecting sections for splitting the composite...
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7229684 |
Light-stable colored transparent composite films
Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment...
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7223959 |
Plasma absorption wave limiter
A plasma absorption wave limiter is disclosed. The plasma absorption wave limiter comprises a limiting layer and a trigger layer. The limiting layer is transmissive in a pass band of a sensor and...
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7218464 |
Aligning-assembling method for color wheel
A coating method for a color filter, including the steps of: coating a first photoresist layer on a substrate; forming at least a aligning pattern and a first color film pattern on the first...
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7212359 |
Color rendering of illumination light in display systems
A method and a color rendering filter for compensating for deficiency in illumination light from a light source in display systems are provided. The color rendering filter has a color that is...
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7209303 |
Method for balancing color wheel and structure thereof
A method for balancing a color wheel. The rotational unbalance vector of a driving motor is measured, including its unbalance amount and direction. The unbalance of a color wheel is adjusted to...
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7193716 |
Arrangement of color filters for characterizing the color of an aggregate light
In one embodiment, a plurality of color filters arranged in an N×N array. The color filters comprise equal numbers of color filters for each of three or more different colors. The color filters...
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7190536 |
Color filter disc and process of making the same
A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular...
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7187509 |
Color wheel and manufacturing method of same
There is provided a color wheel which includes: a color filter disk having a side surface; and a rotary member having a circumferential surface and adhesively attached to the center portion of the...
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7180691 |
Color wheel assembly
A color wheel assembly includes a carrier, a color filter assembly mounted coaxially on the carrier and formed by a plurality of annularly arranged filter segments, and a connecting unit including...
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7180052 |
Non-heavy metal optical bandpass filter in electro-optical readers
Heavy metals such as cadmium are not employed in optical bandpass filters employed in electro-optical readers to comply with governmental regulations concerning endangering the environment.
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7173780 |
Color wheel with dovetailed balancing groove
A color wheel with dovetailed balancing groove, includes a motor, a metal ring and a set of color filter set. At a rotatable portion of the color wheel, such as the peripheral portion between the...
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