| Patent Number |
Title Of Patent |
Date Issued |
| 7586827 |
Optical pickup apparatus |
September 8, 2009 |
| An optical pickup apparatus has a semiconductor laser source which emits a laser beam in a wavelength band of 405 nm having an elliptic light intensity distribution; a beam shaping element which shapes the light intensity distribution of the laser beam; a polarizing beam splitter hav |
| 7385760 |
Optical element and optical pickup device used therewith |
June 10, 2008 |
| An optical element for reflecting light has a substrate and a thin film formed on the substrate. The thin film reflects light in a predetermined reflection wavelength band so that the thin film adjusts a difference in phase differences between a P-polarized light component and S-polarize |
| 7289267 |
Polarizing beam splitter |
October 30, 2007 |
| A polarizing beam splitter having a film made of a high-refractivity material and a film made of a low-refractivity material alternately stacked on a substrate. When an incidence angle with respect to a film surface in a particular wavelength is set as .theta. (.degree.), the followi |
| 7038852 |
Polarization conversion optical system and polarization conversion element |
May 2, 2006 |
| A polarization conversion optical system converts light having a nonuniform plane of polarization into light having a uniform plane of polarization. The system includes a multilayer dielectric film at the side upon which the target light is incident. The film exhibits the property th |
| 7016561 |
Optical switch device having movable switching member |
March 21, 2006 |
| Disclosed herewith is an optical switch provided on an optical path of an optical waveguide and which switches an advancing direction of a light passed through the optical path. The optical switch includes a movable switching member which switches the advancing direction of the light, an |
| 6870595 |
Optical filter device and method of making same |
March 22, 2005 |
| The optical waveguide includes an optical waveguide layer, and a filter element including an ultraviolet curing liquid crystal layer disposed in a position which divides the optical waveguide layer in a waveguide direction. The ultraviolet curing liquid crystal layer having a twisted |
| 6853760 |
Optical functional device and optical integrated device |
February 8, 2005 |
| On a waveguide 34 formed on a substrate 33, a plurality of comblike shaped electrodes 37, 38 that generate surface acoustic waves 37a, 38a from different directions are provided. And a periodic refractive indices portion 40 is formed, where the refractive indices are periodically dis |
| 6822796 |
Diffractive optical element |
November 23, 2004 |
| A diffractive optical element has a diffraction grating formed by periodic depressions and projections on the surface of a substrate and a dielectric multilayer film on the diffraction grating. The materials of the respective layers of the film are chosen such that the depth of the d |
| 6807330 |
Optical switch using an optical waveguide |
October 19, 2004 |
| Disclosed herein is an optical switch for changing over a running direction of a light passing through an optical waveguide between a first direction and a second direction by moving a switching member disposed on an optical path of an optical waveguide. The switching member has a plural |
| 6785029 |
Optical scanner |
August 31, 2004 |
| An optical scanner having a simple structure in which the light quantities of a plurality of light beams are not varied by differences in polarization direction among the light beams. The optical scanner scans a surface by means of a plurality of light beams in which the polarization |
| 6654535 |
Polyimide optical waveguide |
November 25, 2003 |
| An optical waveguide is produced by forming on a substrate a waveguide layer and/or a clad layer containing, as their main ingredient, polyimide with a fluorine substitution rate of 30% or higher (thus as a fluorinated polyimide layer), with a primer layer laid in between that contains, |
| 6549261 |
Liquid crystal reflective display |
April 15, 2003 |
| A liquid crystal reflective display comprising cholesteric liquid crystal capable of selectively reflecting spectral rays of a specific wavelength in a visible range; and a carrier carrying said cholesteric liquid crystal, wherein at least one of said cholesteric liquid crystal and said |
| 6549185 |
Display apparatus and method for driving a liquid crystal display |
April 15, 2003 |
| A display apparatus includes a liquid crystal display which has a pair of plates each provided with an electrode and a liquid crystal layer retained between the plates, and a driver which is connected to said liquid crystal display for applying a voltage pulse to the electrodes. The driv |
| 6498776 |
Near field light emitting element and optical head |
December 24, 2002 |
| A near field light emitting element has a first film made of e.g. Al, an intermediate film made of e.g. SiN and a second film made of e.g. Al on an emergent surface of a solid immersion lens made of a high-refractive material. A first hole is made in the first film, and a second hole is |
| 6466708 |
Optical module and manufacturing method thereof |
October 15, 2002 |
| An optical module has a substrate, a waveguide, formed on the substrate, for guiding light, and a photonic crystal portion that has media having different refractive indices arranged in a periodic pattern and that is disposed in a channel of the waveguide on the substrate. Here, the |
| 6433843 |
Liquid crystal reflective display |
August 13, 2002 |
| A liquid crystal reflective display comprising cholesteric liquid crystal capable of selectively reflecting spectral rays of a specific wavelength in a visible range; and a carrier carrying said cholesteric liquid crystal, wherein at least one of said cholesteric liquid crystal and said |
| 6331884 |
Method of making a liquid crystal device |
December 18, 2001 |
| A method of making a liquid crystal device having a plurality of cells of liquid crystal material, includes the steps of: (a) preparing a first base having a first surface; (b) providing a first phase of a material and a plurality of second phases of at least one liquid crystal material |
| 6331881 |
Liquid crystal device with composite layer of cured resin pillars and liquid crystal phase and m |
December 18, 2001 |
| A liquid crystal device comprises a pair of substrates; and a composite layer disposed between the pair of substrates, the composite layer including a resin phase and a liquid crystal phase of a liquid crystal material exhibiting cholesteric characteristic, the composite layer having |
| 6320631 |
Liquid crystal reflective display |
November 20, 2001 |
| A liquid crystal reflective display comprising cholesteric liquid crystal capable of selectively reflecting spectral rays of a specific wavelength in a visible range; and a carrier carrying said cholesteric liquid crystal, wherein at least one of said cholesteric liquid crystal and said |
| 6278505 |
Liquid crystal reflective display |
August 21, 2001 |
| A liquid crystal reflective display comprising cholesteric liquid crystal capable of selectively reflecting spectral rays of a specific wavelength in a visible range; and a carrier carrying said cholesteric liquid crystal, wherein at least one of said cholesteric liquid crystal and said |
| 6204908 |
Reflecting cholesteric LCD having viewer side layer which either scatters or transmits light dep |
March 20, 2001 |
| A reflecting liquid crystal display unit that reflects light entering from an observer side to display an image. The reflecting liquid crystal display has a composite layer of cholesteric liquid crystal material and polymer resin, and an an isotropic scattering layer. The an isotoropic |
| 6130738 |
Liquid crystal device having a resin wall using different resins with different surface interact |
October 10, 2000 |
| A liquid crystal device that includes a pair of substrates and a composite layer disposed between the substrates. The composite layer has a liquid crystal phase of a liquid crystal material and a resin phase of a resin. The liquid crystal device is made such that the resin phase comprise |
| 6130378 |
Solar battery |
October 10, 2000 |
| The object of the present invention is, in a solar battery where at least an electrolyte and a porous member of an oxide semiconductor retaining a pigment material are provided between a transparent electrode and a counter electrode, to obtain a high conversion efficiency by improving th |
| 6124908 |
Liquid crystal element |
September 26, 2000 |
| A liquid crystal element has a pair of substrates at least one of which is transparent, and a composite layer, which is retained between said pair of substrates, comprising a transparent resin matrix and a liquid crystal material having cholesteric characteristics.(1) In the liquid cryst |
| 6015507 |
Liquid crystal element having composite layer |
January 18, 2000 |
| A liquid crystal element includes a pair of plates at least one of which is transparent, and a composite layer retained between the plates and including a liquid crystal material in a transparent resin substrate. In the liquid crystal element, (A) the liquid crystal material in the c |
| 5920368 |
Composite material, display device using the same and process of manufacturing the same |
July 6, 1999 |
| A composite material includes a cholesteric liquid crystal; a polymer which is distributed in phase-separated domains and provides an effective form-retention property for the composite material; and an additional material which is dissolved in the cholesteric liquid crystal and main |
| 5731861 |
Composite material, display device using the same and process of manufacturing the same |
March 24, 1998 |
| A composite material includes a cholesteric liquid crystal; a polymer which is distributed in phase-separated domains and provides an effective form-retention property for the composite material; and an additional material which is dissolved in the cholesteric liquid crystal and main |
