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| Number | Title | Issue Date |
| 8169589 | Adaptive focusing using liquid crystal zone plates in electro-optical readers Working range and beam cross-section are adjusted in an electro-optical reader for reading indicia by applying voltages to electrodes in one or more liquid crystal zone plates in which the index of refraction is changed in different regions of each zone plate. ... | 05/01/2012 |
| 8149377 | Tunable-focusing liquid crystal lens cell and method of fabrication thereof A tunable-focusing liquid crystal lens (TLCL) cell has a liquid crystal layer arranged within a cell gap defined between substrates, a layer of optically transparent material arranged between the first substrate and the LC layer, and a liquid crystal alignment layer... | 04/03/2012 |
| 8081291 | Electro-optic zoom lens system A fast, electro-optically switched zoom lens system operates across a broad spectral and thermal range while correcting for birefringent aberrations by means of a polarizing system that preferably includes polarizing reticles. ... | 12/20/2011 |
| 8072574 | Tunable liquid lens with reduced aberration A tunable optical imaging system uses a fixed lens and a tunable liquid crystal lens that is operated only outside of an operational range of high aberration. A voltage range applied to change the optical power of the liquid crystal lens is limited to a continuous t... | 12/06/2011 |
| 8045133 | Electrically-driven liquid crystal lens and display device using the same An electrically-driven liquid crystal lens, which can reduce crosstalk caused at the center of an electrode, includes first and second substrates arranged opposite each other and defined, respectively, with a plurality of lens regions corresponding to each other, fi... | 10/25/2011 |
| 8035794 | Double-layer liquid crystal lens A double-layer liquid crystal lens comprises a first transparent substrate, a second transparent substrate, a third transparent substrate, a first liquid crystal layer interposed between the first and the second transparent substrates, and a second liquid crystal la... | 10/11/2011 |
| 8031323 | 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 uniform voltage to the nematic liquid crystal/monomer mixture. The lens is... | 10/04/2011 |
| 7956981 | LCD based environment scanner and 3-D display A liquid crystal display (LCD) device (100) has the dual functionality of image display and environment scanning. Specifically, during environment scanning mode, the LCD device searches for targets, i.e., markers (700) in the environment. To enable suc... | 06/07/2011 |
| 7944543 | Liquid crystal lens and lens module incorporating same A liquid crystal lens includes a first light-pervious plate, a second light-pervious plate opposite to the first light-pervious plate, a liquid crystal layer sandwiched between the first light-pervious plate and the second light-pervious plate, a first electrode lay... | 05/17/2011 |
| 7940369 | Stereoscopic image conversion panel and stereoscopic image display apparatus with liquid crystal lens having periodically fluctuating lower voltage applied to lower parallel electrodes and same voltage applied to upper parallel electrodes perpendicular to lower electrodes In a stereoscopic image conversion panel for enhancing display quality and a stereoscopic image display apparatus having the panel, the stereoscopic display panel includes lower and upper transparent substrates, lower and upper transparent electrodes, and a liquid c... | 05/10/2011 |
| 7880858 | Liquid crystal lens and lens module having same A liquid crystal lens includes a first light-pervious plate, second light-pervious plate opposite to the first light-pervious plate, a first electrode layer on the first light-pervious plate, a second electrode layer on the second light-pervious layer, a liquid crys... | 02/01/2011 |
| 7859640 | Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals A variable optical device for controlling the propagation of light has a liquid crystal layer (1), electrodes (4) arranged to generate an electric field acting on the liquid crystal layer, and an electric field modulation layer (3,71) arranged b... | 12/28/2010 |
| 7852454 | Dual range focus element An autofocus system is provided for image capture that includes a liquid crystal focus lens which includes a dual range liquid crystal lens with a thinner liquid crystal lens (385) and a thicker liquid crystal lens (365) separated by a single shared el... | 12/14/2010 |
| 7812923 | Liquid crystal display device and method for driving the same with particular light focusing unit A liquid crystal display device includes a liquid crystal panel; a backlight unit supplying light onto the liquid crystal panel; and a light focusing unit between the backlight unit and the liquid crystal panel, the light focusing unit for focusing the light supplie... | 10/12/2010 |
| 7724347 | Tunable liquid crystal lens module An electrically controlled liquid crystal zoom lens system for a camera or the like is set to a desired zoom by an operator. The desired zoom signal is provided to an image signal processor which also receives the output of an image sensor at the output of the lens.... | 05/25/2010 |
| 7719657 | Liquid crystal lens element and optical head device The present application relates to a liquid crystal lens element and an optical head device, in particular order, to a liquid crystal lens capable of switching the focal length among a plurality of different focal lengths according to switching of applied voltage am... | 05/18/2010 |
| 7710535 | Liquid crystal lens element and optical head device A liquid crystal lens element having a lens function capable of stably correcting spherical aberration containing a power component corresponding to focus change of incident light according to the magnitude of applied voltage. The liquid crystal lens element ... | 05/04/2010 |
| 7697109 | Stereoscopic image conversion panel and stereoscopic image display apparatus with liquid crystal lens having periodically fluctuating lower voltage applied to lower parallel electrodes and same voltage applied to upper parallel electrodes perpendicular to lower electrodes In a stereoscopic image conversion panel for enhancing display quality and a stereoscopic image display apparatus having the panel, the stereoscopic display panel includes lower and upper transparent substrates, lower and upper transparent electrodes, and a liquid c... | 04/13/2010 |
| 7667818 | 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 uniform voltage to the nematic liquid crystal/monomer mixture. The lens is... | 02/23/2010 |
| 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 lens. The liquid crystal optical element (100) includes a fir... | 11/17/2009 |
| 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 and second light-transmitting regions. First and second electrodes are ... | 07/28/2009 |
| 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 transient response operation caused by application of the predetermined vol... | 05/12/2009 |
| 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 including at least one high-electrical-resistance section for heating... | 04/21/2009 |
| 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 extends in the surface direction of the second transparent substrate from... | 01/27/2009 |
| 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 refraction, the interface between the fluids forming a meniscus 1... | 10/21/2008 |
| 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 planar upper surface and a lower substrate layer with a planar lower s... | 09/16/2008 |
| 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, characteristics of the optics can be advantageously varied. For this purpose,... | 08/12/2008 |
| 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 90° TN-LC polymer network concentration can gradually decrease from the... | 08/05/2008 |
| 7382512 | Resistivity phase change material Various devices and methods employing a resistive phase change material are disclosed. ... | 06/03/2008 |
| 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 first, second and third different types of alignment region (T1,... | 05/20/2008 |
| 7369201 | Liquid-crystal display having liquid-crystal layer oriented to bend alignment A liquid-crystal display suitable for the optically compensated birefringence (OCB) display mode is used so as to simplify the voltage setting relating to display of each color by setting as follows. A liquid-crystal layer is oriented to bend alignment between a pai... | 05/06/2008 |
| 7365814 | Transflective type liquid crystal display device A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer made of liquid crystals injected between the first and the second substrates, and a backlight assembly arranged on an outer surface of t... | 04/29/2008 |
| 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 optical system, are disclosed. A lens barrel comprises an optical syste... | 03/04/2008 |
| 7330230 | Reflection type liquid crystal display element, display unit, projection optical system, and projection display system A superior reflex type vertically-aligned liquid crystal display device wherein the refractive index anisotropy Δn of its liquid crystal material is controlled to be more than 0.1, and the transmissivity of the liquid crystal is saturated with facility at a low vol... | 02/12/2008 |
| 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 negative lens, the LC droplet size can gradually decrease from the ce... | 02/05/2008 |
| 7290875 | 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 planar upper surface and a lower substrate layer with a planar lower s... | 11/06/2007 |
| 7281931 | Electrical connector for connecting electrical units, electrical device, and production method for producing electrical device In a construction for electrically connecting electrical unit with joint surfaces thereof opposed to each other, wiring patterns electrically connected with distortion gauges are formed on function-element forming surfaces of each electrical three-dimensional unit a... | 10/16/2007 |
| 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 the chamber, the first and second liquids being non mi... | 10/09/2007 |
| 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 tuning element, from which independent tuning of the element can be ... | 10/09/2007 |
| 7268357 | Immersion lithography apparatus and method Disclosed is an immersion lithography system comprising a liquid crystal media. The liquid crystal is positioned between an objective lens and a substrate stage. A liquid crystal controller having a first electrode and a second electrode is configured to control the... | 09/11/2007 |
