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7619713 |
Liquid crystal optical element and method for manufacturing thereof
The present invention is directed to the provision of a liquid crystal optical element that is inexpensive, has an ideal refractive index profile, and functions as a high-performance gradient-index...
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7609954 |
Lens module and camera module using the lens module
A lens module includes a lens barrel, at least one fixed focus lens fixed in the lens barrel, and at least two variable focus lenses fixed in the lens barrel. Each variable focus lens includes two...
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7567337 |
Liquid crystal lens and optical device
A liquid crystal lens comprises a first liquid crystal lens part. The first liquid crystal part comprises first and second flat parallel substrates and a liquid crystal filled between said first...
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7532303 |
Automatic focusing apparatus
Predetermined voltage is applied to a liquid crystal lens by a liquid crystal lens driver. Image signals are generated based on an optical image passed through the liquid crystal lens during...
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7532272 |
Switchable lens
A display apparatus has a switchable birefringent lens array. The display apparatus produces a substantially linearly polarized output. The lens array comprises birefringent material arranged...
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7522345 |
Method of fabricating liquid lens using electrowetting and liquid lens fabricated thereby
A method of fabricating a liquid lens which can prevent unstable movement of liquids while sealing a hole containing the liquids by applying voltage to a chamber containing the liquids to induce...
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7522256 |
Liquid crystal lens apparatus
A liquid crystal lens apparatus includes a liquid crystal lens unit having first and second substrates including electrodes for applying a voltage a first liquid layer, an electric heating element...
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7483116 |
Electrical light control element, lens barrel, and imaging device
The liquid crystal light control element includes the first to third transparent substrates which are placed on top of the other. The second transparent substrate has the projecting part which...
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7440075 |
Birefringent optical system
The invention relates to an optical system comprising a fluid chamber 1 and a birefringent part. The fluid chamber comprises first and second fluids 10, 12 having different indices of...
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7425066 |
Electro-active spectacles and method of fabricating same
A composite lens assembly comprising an electro-active lens assembly, a first lens wafer, and a second lens wafer is provided. The electro-active lens assembly has an upper substrate layer with a...
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7411739 |
Imaging optics with adjustable optical power and method of adjusting an optical power of an optics
The invention relates to optics comprising adjustable optical elements and, if desired, lenses of fixed focal lens. By use of an appropriate controller for the adjustable optical elements,...
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7408601 |
Electronically tunable polarization-independent micro lens using polymer network twisted nematic liquid crystal
Inhomogeneous concentrated polymer network with approximately 90° twisted nematic liquid crystal (TN-LC) is used for fabricating lens and prisms. For forming a positive lens, the approximately...
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7382512 |
Resistivity phase change material
Various devices and methods employing a resistive phase change material are disclosed.
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7375784 |
Control of liquid crystal alignment in an optical device
A method is provided that allows simultaneous control of macroscopic azimuthal and zenithal liquid crystal alignment (φ, θ) across a liquid crystal layer by controlling the area ratios between...
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7339649 |
Lens barrel and imaging device
A lens barrel and imaging device advantageous for making unnatural brightness variation in an image, due to a liquid-crystal light control element, less noticeable, while reducing the size of an...
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7327434 |
Tunable electronic lens and prisms using inhomogeneous nano scale liquid crystal droplets
Using inhomogeneous sized liquid crystal (LC) droplets for lens and prisms. For forming a positive lens, the LC droplet size can gradually increase from the center to the side edges. For forming a...
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7280181 |
Liquid crystal polymer optical filter carrier
An external cavity laser apparatus includes a wavelength tuning element mounted to a carrier on the apparatus's platform. Thermal control of the platform sets an initial position of the carrier and...
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RE39874 |
Lens with variable focus
A variable focus lens comprising a chamber ( 12 ) filled with a first liquid ( 13 ), a drop of a second liquid ( 11 ) being disposed at rest on a region of a first surface of an insulating wall of...
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7245347 |
Variable aperture stop with no moving parts
A variable aperture stop with no moving parts is disclosed. The aperture stop comprises a first region comprising a first optically transmissive medium, a second region comprising a second...
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7218429 |
Digital focus lens system
A digital focus lens systems that can provide an optical system with a plurality of selectable focal powers is described. The system includes a number of switchable elements, each of which is...
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7218375 |
Electrically variable focus polymer-stabilized liquid crystal lens having non-homogenous polymerization of a nematic liquid crystal/monomer mixture
A variable focus liquid crystal lens includes a nematic liquid crystal/monomer mixture having a spatially inhomogenous polymer network structure, and an electrode for applying a substantially...
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7184119 |
Liquid crystal device and its manufacturing method
A liquid crystal device capable of giving a phase distribution to transmitted light without the need for complicated calculations, thereby making it possible to easily perform manufacturing of...
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7172305 |
Magnifier having slideably mounted camera
A magnifier for use by people with low vision includes a large LCD display upon which an enlarged image appears. Light from an LED is directed in a first direction onto a deflection wall where it...
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7172304 |
Illuminator having forward lighting
A box-like illuminator includes a top wall having a flat sheet of clear material through which an illuminated image is viewed. A bottom wall of the illuminator is also formed of a flat sheet of...
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7079203 |
Electrically tunable polarization-independent micro lens using polymer network twisted nematic liquid crystal
Inhomogeneous concentrated polymer network with approximately 90° twisted nematic liquid crystal (TN-LC) is used for fabricating lens and prisms. For forming a positive lens, the approximately...
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6972827 |
Transflective film and display
A transflective optical film reflects ambient light incident on the first surface and transmits light having a preferred polarization state incident on the opposite surface. The film has a...
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6943852 |
Single cell liquid crystal shutter glasses
The invention is a stereoscopic shutter system having a single liquid crystal (LC) cell. The system may have flexible substrates or non-flexible substrates. The system requires only two electrical...
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6934075 |
Multilayer single lens structure with zooming and focusing functions
The present invention discloses a multilayer single lens structure with zooming and focusing functions, particularly a lens structure that makes use of the special properties of crystalline grains...
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6898021 |
Motionless zoom lens
Systems and methods are disclosed herein to provide zoom lenses. For example, in accordance with an embodiment of the present invention, a zoom lens is provided with a tunable lens. The focal...
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6888590 |
Optical elements (such as vari focal lens component, vari-focal diffractive optical element and variable declination prism) and electronic image pickup unit using optical elements
An optical element which is capable of varying an optical characteristic thereof using a polymer dispersive liquid crystal and usable as a vari-focal lens element, a vari-focal diffractive optical...
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6833938 |
Variable hologram element, and optical device using the same
The invention relates to an optical element with variable optical properties, which ensures that the amount of light available is increased, and an optical device using the same. In a liquid...
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6795157 |
Compound liquid crystal microlens for a sensor
A first liquid crystal lens and a second liquid crystal lens are provided on both sides of an intermediate glass plate. The first liquid crystal lens is provided for forming an inverted image of an...
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6778246 |
Liquid crystal adaptive lens with closed-loop electrodes and related fabrication methods and control methods
A liquid crystal adaptive lens (LCAL) includes a reference plate, a liquid crystal layer disposed in electrical communication with the reference plate, and a plurality of closed-loop electrodes...
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6768536 |
Liquid crystal microlens
There is provided a pair of transparent upper and lower glass substrates which are disposed apart from each other so as to form a space there-between, a pair of electrodes provided on the underside...
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6700639 |
Liquid crystal display apparatus and production method
A glass sheet for a liquid crystal display apparatus with a scribe groove formed thereon is divided by cooling the scribe groove and its surroundings and heating surrounding areas on both sides of...
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6690449 |
LCD power loss indication
A device that provides a display indicating an absence of power to an LCD is disclosed. The device includes a continuous polarizing filter layer disposed within a display area that makes up a...
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6512563 |
Method for producing ultrahigh resolution optical device panel
A super-resolution optical panel is fabricated such that a first circular transparent electrode ( 13 ) is installed in the central region of a first substrate ( 11 ), an alignment layer is formed...
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6388730 |
Lateral field based liquid crystal electro-optic polarizer
An electro-optic polarizor, grating assembly or cell ( 10 ) includes a first glass plate ( 12 ) to form the foundation of the cell. A first alignment surfactant ( 14 ) is coated on one surface of...
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6359674 |
Liquid crystal lens, liquid crystal lens unit, and liquid crystal lens assembly
A liquid crystal lens comprises a biconcave lens and a pair of transparent flat plates arranged before and behind the lens. The biconcave lens has a pair of concave principal surfaces covered with...
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6317190 |
Variable focal length liquid crystal lens assembly and method of manufacture
A lens assembly has a pair of polarized liquid crystal lenses. Each lens has pair of parallel glass plates that are separated by upper and lower glass substrates. A series of polymer films are...
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6288767 |
Imaging optical system
An imaging optical system includes a liquid crystal lens including a first body formed of a substantially transparent birefringent liquid crystal member, a second body formed of a substantially...
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6191881 |
Variable focal length lens panel and fabricating the same
There are provided a circular transparent electrode provided on a first substrate at the center thereof, a plurality of annular transparent electrodes which are disposed outside the circular...
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6151154 |
Optical pickup, aberration correction unit and astigmatism measurement method
An optical pickup includes: a light source, an object lens, and an aberration correction unit for correcting aberration by giving a phase difference to a light beam. The aberration correction unit...
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6031594 |
Electro-optic device
A single hollow element (12) surrounds the cavity (72) lying between a first surface (36) and a second surface (312) of a liquid crystal cell (8). An inside side surface (20) of element (12) bounds...
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5867243 |
Electron beam addressed liquid crystal cell
A liquid crystal cell (10) is formed with a hollow cylinder (12) and a solid cylinder (32) inserted into a hole (32) of the hollow cylinder (12) so that a first reference surface (34) of the solid...
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5815233 |
Optical device containing a liquid crystal element for changing optical characteristics of a lens element
A liquid crystal active lens having, in combination, a fixed-focal-point lens having a high index of refraction and a phase modulation element comprising two-dimensionally arranged fine pixels, and...
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5739548 |
Solid state imaging device having a flattening layer and optical lenses
The invention provides a solid state imaging device with high photosensitivity. A lens resin coated on the surface of the device is subjected to an exposing treatment using lens masks and a...
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5682212 |
Optical elements having image-forming, color- and polarization-selective reflection and containing cholesteric liquid crystals, and the preparation and use of these elements
The invention relates to optical elements having image-forming, color- and polarization-selective reflection and containing cholesteric liquid crystals, and to the preparation and use of these...
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5679414 |
Liquid crystal-polymer composite film, electro-optical element using the same, and process for producing electro-optical element
A liquid crystal-polymer composite film comprising (1) a high-molecular weight compound containing at least one kind of monomer units providing a side chain having a liquid crystal nature and at...
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5671034 |
Polarisation dependent refractive device exhibiting independtly varying first and second indices of refraction and methods of manufacture thereof
A birefringent element is patterned such that for light of a first polarisation the element acts as a first refractive optical element and for light of a second polarisation the optical response of...
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