| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 349200000 | Liquid crystal lenses other than for eyewear | 34 |
| 20090096981 | ALIGNMENT OF LIQUID CRYSTALLINE MATERIALS TO SURFACE RELIEF DIFFRACTIVE STRUCTURES - An alignment layer may align molecules of a liquid crystalline material to a surface of a substrate having a diffractive optical power region using a nonlinear alignment. The alignment layer may align the molecules of the liquid crystalline material in one of a tangential alignment, a piecewise tangential alignment, a perpendicular alignment, a piecewise perpendicular alignment, a continuous intra-zone alignment, or a piecewise continuous intra-zone alignment. The nonlinear alignment may result in optimal or near optimal alignment of the liquid crystalline material thereby resulting in improved optics and fewer vision compromises. | 04-16-2009 |
| 20090141232 | OPTICAL LENS MODULE - An optical lens module includes a support frame, a liquid crystal lens group, and a aberration compensation lens group. The aberration compensation lens compensates aberrations generated by the liquid crystal lenses. The liquid crystal lens group and the fixed aberration compensation lens group are disposed on the same optical axis. The optical lens module is power-saving, easily assembling, and has a small volume, which is helpful for miniaturizing and thinning optical lens modules, and thus further helpful for miniaturizing and thinning small-size or portable devices. | 06-04-2009 |
| 20090168010 | Adaptive focusing using liquid crystal lens 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 lenses in which the index of refraction is changed. | 07-02-2009 |
| 20090213321 | 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 tunable range of low aberration. The relative positioning between the lens and a corresponding photodetector, and the relative lens powers of a fixed lens and the tunable lens, may be selected to compensate for any optical power offsets resulting from the limitation of the voltage range of the tunable lens. The lens may be operated in either positive tunability or negative tunability mode. | 08-27-2009 |
| 20090231537 | PHOTOGRAPHIC LENS UNIT AND ELECTRONIC APPARATUS USING THE SAME - A lens unit fixed inside a lens barrel frame of a lens unit and is provided with a liquid crystal lens including a liquid crystal optical element constituted of a plurality of transparent electrode plates which are held in a liquid crystal lens holder, an imaging element arranged on the image side of the liquid crystal lens, a board, an imaging element support plate, and a two-dimensional drive mechanism, and the liquid crystal lens holder includes first and second retention members. The first retention member includes a first positioning section for performing positioning in an X-Y plane perpendicular to the optical axis of the liquid crystal lens, and a second positioning section for specifying an optical axis direction. The second retention member includes a connection section covering the liquid crystal lens and connecting with the second positioning section. | 09-17-2009 |
| 20090262298 | 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 layer, a second electrode layer and a driving voltage chip. The first electrode layer includes a plurality of concentric, annular electrodes arranged on a surface of the first light-pervious plate. A material of the first electrode layer is carbon nanotube. The second electrode layer is arranged on a surface of the second light-pervious plate. The driving voltage chip is configured for providing voltages between each of the annular electrodes and the second electrode layer in radial gradient distribution. A lens module is also provided in the present invention. | 10-22-2009 |
| 20090268152 | 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 crystal layer and a driving voltage unit. The first electrode layer includes a plurality of concentric, annular electrodes and is comprised of carbon nanotubes. The liquid crystal layer is sandwiched between the first and second light-pervious plates. The liquid crystal layer includes a plurality of annular regions spatially corresponding to the respective annular electrodes. A density of liquid crystal in the annular regions of the liquid crystal layer is different from each other. The driving voltage unit is configured for providing voltages between each of the annular electrodes and the second electrode layer for creating a gradient distribution of refractive index of the liquid crystal layer in radial directions. | 10-29-2009 |
| 20100053539 | LIQUID CRYSTAL LENS WITH VARIABLE FOCUS - A liquid crystal lens with variable focus formed by a single layer or multiple layers of liquid crystal lens unit is revealed. The liquid crystal lens unit includes two glass substrates with preset thickness and arranged in parallel so as to form a middle space for accommodation of liquid crystal layer. By etching, an aluminum membrane, silver membrane or other transparent metal membranes to form surface electrode patterns that can be controlled independently. The arrangement and the refractive index of each liquid crystal layer can be tuned by adjustment of the applied voltage so as to improve image quality, increase focus switch speed, improve easiness of assembling, reduce whole thickness of the lens, and the manufacturing cost. | 03-04-2010 |
| 20100073623 | 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 ( | 03-25-2010 |
| 20110090451 | 3D GRID CONTROLLABLE LIQUID CRYSTAL LENS AND MANUFACTURING METHOD THEREOF - A 3D grid controllable liquid crystal lens is provided. In the 3D grid controllable liquid crystal lens, at least two layers of a plurality of active device arrays are stacked on a first substrate, and a plurality of liquid crystal layer are respectively disposed on the active device arrays. Then, a driving voltage applied on each active device array is suitably controlled to control the orientation of the liquid crystal molecules, so as to generate a refractive index distribution similar to gradient-index lens in the 3D grid controllable liquid crystal lens. Therefore, the 3D grid controllable liquid crystal lens has a focusing function for focusing/diverging the light, similar to a convex lens or a concave lens. A method for manufacturing the 3D grid controllable liquid crystal lens is also provided. | 04-21-2011 |
| 20110181827 | Lens array element and image display device - A stereoscopic display device includes a display panel performing image display, and a lens array element including a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer disposed between the first electrode and the second electrode, the lens array element being configured in such a manner that a lens effect on display image light from the display panel is controlled depending on a voltage applied to the first electrode and a voltage applied to the second electrode. One of the first electrode and the second electrode is structured to allow an electric field to be applied to the liquid crystal layer for each of a plurality of predetermined sub-regions, individually. | 07-28-2011 |
| 20120026451 | TUNABLE LIQUID CRYSTAL LENS WITH SINGLE SIDED CONTACTS - A tunable liquid crystal lens device is provided that uses a number of conductive elements and external contacts all located along a common side of a device housing. The device may include planar electrodes, a patterned electrode, a heating element and a sensor, which may be in different layers of the device. The device is produced as part of an array of such devices and, in addition to the devices in the array, a plurality of electrical conductive strips are used to provide high conductivity connection to conductive layers in each of the devices, thereby allowing simultaneous testing of the devices in the array. | 02-02-2012 |
| 20120033174 | LIQUID CRYSTAL LENS AND MANUFACTURING METHOD THEREOF - The present invention discloses a liquid crystal lens and a manufacturing method thereof. At least one first electrode is disposed on a first substrate, a first alignment layer is disposed on the first electrode, a liquid crystal layer is disposed on the first alignment layer, a second alignment layer is disposed on the liquid crystal layer, an electric field uniformization layer is disposed on the second alignment layer, at least one second electrode and at least one third electrode are disposed on the electric field uniformization layer, and the second electrode is arranged around the third electrode. A second substrate is disposed on the second electrode and the third electrode. The third electrode which matches up with the second electrode produces an electric field gradient and the liquid crystal layer is affected uniformly by the electric field uniformization layer so as to achieve rapid focus purpose by the liquid crystal. | 02-09-2012 |
| 20120075569 | LIQUID CRYSTAL LENS - A liquid crystal lens including a plurality of electrodes and a substrate is provided. A plurality of parallel electric fields is formed by controlling the potentials of the electrodes, so as to speed up the mechanism for toppling the liquid crystal molecules. In other words, the liquid crystal lens has a high respond time. In addition, a plurality of active devices is disposed at the sides of the electrodes in the liquid crystal lens, in which the active devices are electrically connected to the electrodes. When the active devices are driven, a current is formed on the electrodes, so as to raise the temperature of the liquid crystal lens. Accordingly, the liquid crystal lens can be operated in a low temperature environment. | 03-29-2012 |
| 20120169988 | CAMERA MODULE - Disclosed herein is a camera module including: a lens barrel having a lens mounted thereon; a housing having the lens barrel received therein; a printed circuit board connected to a lower portion of the lens barrel and fixed to the housing; and an LC lens module including an LC lens having the center positioned on the same axis as the center of the lens and coupled to the housing. The LC lens is positioned so as to correspond to the center axis of the lens, such that auto-focusing may be efficiently and stably implemented, and electrical connection parts coupling the LC lens to the LC lens module are exposed to the outside of the housing, such that a connection state may be checked with the naked eyes and additional repair may be easily and simply performed. | 07-05-2012 |
| 20120236248 | CAMERA MODULE - Disclosed herein is a camera module including: a lens barrel mounted with a camera lens; a housing including an exposing hole and guide portions formed on the top thereof, the exposing hole being opposite to the camera lens; a printed circuit board fixed to the housing; and an LC lens module including an LC lens and guided to the guide portions of the housing to thereby be coupled to the housing so that the LC lens is positioned on the same axis as the center of the lens. | 09-20-2012 |
| 20120262663 | ELECTRICALLY TUNABLE LIQUID CRYSTAL LENS SET WITH CENTRAL ELECTRODE - A liquid crystal lens cell set includes a plurality of liquid crystal lenses overlapping to each other. Each of the liquid crystal lenses is supported between a pair of flat layers. One of the layers supports a planar electrode made of ITO. The other electrode, also formed of ITO, is supported in the center of the opposing substrate and projects toward the center of the liquid crystal layer. A power supply creates a potential difference between the electrodes and imposes a non-uniform electric field on the liquid crystal modules which aligns them in which a way as to act as a lens. By varying voltage between the electrodes the focal length of the lens may be controlled. A central electrode may be in the form of a beam or of a pointed tip. An electrode having a central hole may be associated with the central electrode or the planar electrode. | 10-18-2012 |
| 20120274891 | LIQUID CRYSTAL LENS - A liquid crystal lens includes a first light-pervious plate, a second light-pervious plate, a first electrode layer arranged on the first light-pervious plate, a second electrode layer arranged on the second light-pervious plate, and a liquid crystal layer sandwiched between the first light-pervious plate and the second light-pervious plate, where the first electrode layer comprises a plurality of concentric electrodes, and a gap between two adjacent outer concentric electrodes is different from a gap between two adjacent inner concentric electrodes. | 11-01-2012 |
| 20120300167 | LIQUID CRYSTAL LENS, MANUFACTURING METHOD AND USED METHOD THEREOF - A liquid crystal lens, a manufacturing method thereof, an operation method thereof and a photoelectric device are provided. The lens comprises: a first electrode layer; a first transparent substrate; a second transparent substrate, provided to a lower surface of the first electrode layer and opposite to the first transparent substrate; a second electrode layer, provided to an upper surface of the first transparent substrate and comprising a first sub-electrode-layer and a second sub-electrode-layer which are separated from each other; and a liquid crystal layer provided between the second transparent substrate and the second electrode layer. | 11-29-2012 |
| 20130003010 | CAMERA MODULE AND METHOD FOR MAKING SAME - A camera module includes a lens module, a circuit board and solder balls. The lens module includes a lens holder, a liquid crystal lens, and wires. The lens holder includes an outer surface, a first end portion, and a second end portion at opposite sides of the lens holder. The lens holder defines wire grooves in the first and second end portions and the outer surface. The liquid crystal lens is received in the first end portion. The wires are formed on the first end portion The outer surface and the second end portion in the wire grooves are electrically connected to the liquid crystal lens. Each wire includes a solder terminal. The circuit board includes solder pads each corresponding to the solder terminal The solder balls each interconnect the solder pad and the corresponding solder terminal and are formed by low-temperature solder paste composed of tin and bismuth. | 01-03-2013 |
| 20130003011 | Lens Film and Manufacturing Method Thereof - A lens film and a manufacturing method thereof are disclosed. The lens film manufacturing method includes the steps of: forming an alignment film on a glass substrate; rubbing the alignment film along a rubbing direction; dispersing a liquid crystal polymer (LCP) material between the alignment film of the glass substrate and a lens mold; rolling the lens mold along a rolling direction to make the LCP material to form a lens film. A plurality of liquid crystal molecules of the lens film is affected by the alignment film to align along the rubbing direction. The lens film and a base panel having a polarization direction are operated in a LCD apparatus. The angle between the rubbing direction and the polarization direction is less than 15°. | 01-03-2013 |
| 20130033673 | METHOD AND APPARATUS FOR TESTING OPERATION OF AN OPTICAL LIQUID CRYSTAL DEVICE - Methods and apparatus for testing operation of a single or multiple tunable active optical device(s) operated by one or more driving electrodes are described Test methods and apparatus are provided for device testing without necessarily requiring direct physical contact with the driving electrodes Testing subjects devices to incident light along an optical path and to an external electric field applied to the device producing a dipolar charge distribution within the electrodes, causing the device to operate The effect of device operation on incident light is optically sensed The sensed effect is analyzed to identify device defects Test methods and apparatus are provided for testing multiple unsingulated devices during fabrication employing a strip contact structure having contact strips connected to multiple devices and extending to wafer edges, such that singulating devices leaves portions of the strip contact structure exposed on device dice edges providing electrical contacts in use. | 02-07-2013 |
| 20130088682 | CONTROLLABLE OPTICAL DEVICE AND THE FORMING METHOD THEREOF - A controllable optical device comprises a first substrate, a first conductive layer, a liquid crystal layer, a semiconductor conductive layer, a second conductive layer, and a second substrate. The first conductive layer is formed on the first substrate, the liquid crystal layer is formed on the first conductive layer, the semiconductor conductive layer is formed on the liquid crystal layer, the second conductive layer is formed on the semiconductor layer, and the second substrate is formed on the second conductive layer. | 04-11-2013 |
| 20130148075 | LIQUID CRYSTAL LENS AND MANUFACTURING METHOD THEREOF - A liquid crystal lens includes a first substrate, a second substrate, a first electrode layer, a second electrode layer and a liquid crystal layer. The second substrate is disposed opposite to the first substrate. The first electrode layer is disposed on the second substrate and has a blank region which is configured with no electrode. The second electrode layer is disposed on a surface of the first substrate which faces to the second substrate. The liquid crystal layer is disposed between the first substrate and the second substrate, and has a plurality of monomers and liquid crystal molecules. The monomers and the liquid crystal molecules form a macromolecule polymer network structure along the projection direction of the blank region, so that the liquid crystal lens has two focal lengths. A manufacturing method of the liquid crystal lens is also disclosed. | 06-13-2013 |
| 20130169920 | LIQUID CRYSTAL LENS MANUFACTURING METHOD AND LIQUID CRYSTAL LENS - Provided are a method for manufacturing a liquid crystal lens which, even with the use of a thin sheet glass as a glass sheet for dividing a liquid crystal layer, can reduce the likelihood of breakage of the thin sheet glass in the production process and the liquid crystal lens. A mother liquid crystal lens having a plurality of liquid crystal lens units arrayed in a longitudinal direction thereof is cut for each of the liquid crystal lens units to separate out the liquid crystal lens units and thus manufacture respective liquid crystal lenses | 07-04-2013 |
| 20130201437 | VARIFOCAL LENS - A varifocal lens including a first liquid crystal layer; a first electrode portion disposed below the first liquid crystal layer and having a flat shape; a first non-uniform electric field generator which generates a non-uniform electric field in the first liquid crystal layer together with the first electrode portion, and the first non-uniform electric field generator including a second electrode portion having a flat shape. | 08-08-2013 |
| 20130222756 | Electroactive Lens with Multiple Depth Diffractive Structures - Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise and/or relate to, switch a diffractive first electro-active lens from a first power state corresponding to a first optical power to a second power state corresponding to a second optical power that differs from said first optical power. | 08-29-2013 |
| 20140016080 | LIQUID CRYSTAL LENS STRUCTURE AND ELECTRICAL CONTROLLING LIQUID CRYSTAL GLASSES STRUCTURE THEREOF - A liquid crystal lens structure and an electrical controlling liquid crystal glasses structure are disclosed. The liquid crystal lens structure includes first electrode layer, compositing layer, second electrode layer and third electrode layer. The compositing layer includes first alignment layer, first liquid crystal layer, including thin-film layer, second liquid crystal layer and second alignment layer. The first alignment layer is disposed on the first electrode layer. The first liquid crystal layer is disposed on the first alignment layer. The compositing thin-film layer includes liquid crystal and polymer material and the compositing thin-film layer is disposed on the first liquid crystal layer. The second liquid crystal layer is disposed on the compositing thin-film layer. The second alignment layer is disposed on the second liquid crystal layer. The second electrode layer is disposed on the second alignment layer. The third electrode layers are disposed on the second electrode layer. | 01-16-2014 |
| 20140036218 | CAMERA MODULE AND METHOD FOR MAKING SAME - A camera module includes a lens module having a lens holder having a top surface, a bottom surface, a side surface and a through hole through the top surface and the bottom surface, a liquid crystal lens, wires, and a driving unit, a PCB, and solder balls. The liquid crystal lens is received in the through hole. The wires are arranged on the top surface and the side surface. One end of each wire is electrically connected to the liquid crystal lens, and the other end includes a solder terminal on the side surface. The driving unit drives the liquid crystal lens. The PCB includes a rigid print circuit board supporting the lens holder and a flexible print circuit board having a free end bent toward the side surface. The solder balls interconnect the solder terminals and the free end. | 02-06-2014 |
| 20140218674 | LIQUID CRYSTALLINE POLYMER LENS STRUCTURE - A liquid crystalline polymer lens structure includes a refractive index distribution film, a lens and a flexible substrate. The flexible substrate is laminated on the surface of the lens, and the refractive index distribution film is encapsulated inside the flexible substrate. The refractive index distribution film has a non-uniform refractive index distribution, and can design to make the liquid crystalline polymer lens structure have multi-segment or gradual variation of optical power, so as to improve the presbyopia's reading ability. | 08-07-2014 |
| 20150036096 | LIQUID-CRYSTAL LENS - Provided is a liquid-crystal lens with low wavefront aberration. A liquid-crystal lens ( | 02-05-2015 |
| 20150055078 | VARIABLE BEAM EXPANDER - A variable beam expander, including: a first lens having a first focal length that is adjustable by a control circuit; a second lens having a second focal length that is adjustable by the control circuit; wherein the first lens and the second lens are separated by a fixed distance; and wherein the control circuit is configured to adjust the first and second focal lengths such that the sum of the first and second focal lengths is equal to the fixed distance. | 02-26-2015 |
| 20150138498 | ELECTRO-OPTICAL LIQUID CRYSTAL DEVICE - A liquid crystal (LC) lens comprises a first substrate, a first electrode structure, an electrically tunable LC layer structure, a second substrate and a second electrode structure, wherein the electrically tunable LC layer structure is arranged between the first substrate and the second substrate. The electrically tunable LC layer structure includes at least two LC layers stacked on top of one another, and each LC layer further includes at least one LC unit. In the stacked structure, at least one of the LC layers includes at least one partition unit to partition the LC layer into one or more LC units. The layout of the LC units of the upper LC layer differs from that of the lower LC layer. In the present invention, the shape and layout of the LC units are designed to provide better optical performance without changing the thickness of the liquid crystal lens. | 05-21-2015 |
| 20150370125 | LIQUID CRYSTAL LENS - A liquid crystal lens of this invention is provided with (i) a first substrate having (a) a first electrode that has a hole and (b) a second electrode that is within the hole of the first electrode, and spaced from the first electrode; (ii) a second substrate having a third electrode; and (iii) a liquid crystal layer that is formed between an electrode formation surface of the first substrate and an electrode formation surface of the second substrate. In this liquid crystal lens, a functional film is arranged between the second substrate and the liquid crystal layer. At least part of the functional film has a region that has a continuous composition gradient in a film thickness direction. | 12-24-2015 |
