"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 6912092 | Optical material, and, optical element, optical system and laminated diffractive optical element using it An optical element of which diffraction efficiency hardly varies with wavelength is provided by using an optical material satisfying the conditions that nd>−6.667×10−3vd+1.70 and θg,F≦−2×10−3ν... | 06/28/2005 |
| 6898024 | Optical system for optical pickup employing coma compensating element A coma compensating element has two refraction surfaces. The refraction surfaces provide, as a whole, no aberration with respect to rays perpendicularly incident thereon, while the refraction surfaces provide coma with respect to rays obliquely incident thereon.... | 05/24/2005 |
| 6894141 | Main chain type liquid crystalline polyester, liquid crystalline composition, method for producing liquid crystal film and optical film, and display having optical film A main chain type liquid crystalline polyester comprises at least two units selected from aromatic diol units, aromtic dicarboxylic acid units, and aromatic hydroxycarboxylic acid units as essential units and a structural unit containing a cationically polymerizable... | 05/17/2005 |
| 6890644 | Transparent laminate, plastic lens for eyeglass and primer composition A novel primer composition which does not need to be thermally cured at a high temperature after it is applied to a plastic substrate and a transparent laminate, for example, a plastic lens for spectacles, which comprises the above primer composition and has high im... | 05/10/2005 |
| 6876498 | Optical component thickness adjustment method and optical component If after manufacture it is found that the thickness of a solid immersion lens is less than a target thickness value, an adjustment portion is adhered thereto by vapor deposition so as to reduce the amount of thickness deficiency. If the solid immersion lens is made ... | 04/05/2005 |
| 6870686 | Stack of clear laminated removable lenses for reducing surface drag on airfioils A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive. The adhesive is uninterrupted. The lens and the adhesive have refraction mismatch of less than 0.2... | 03/22/2005 |
| 6856465 | Optical viewfinder A optical viewfinder has a single viewfinder element formed from a homogenous material such as glass or plastic. The viewfinder element has an object surface and an image surface. The object and image surfaces are centered on a common optical axis. The object surfac... | 02/15/2005 |
| 6851804 | Readjustable optical elements The invention relates to optical elements whose optical properties can be repeatedly adjusted over time. Through the use of modifying compositions capable of stimulus induced polymerization coupled with a blend of stimulus absorbers and initiators, it is possible to... | 02/08/2005 |
| 6852406 | Anti-static, anti-reflection coating An anti-static, anti-reflection, transparent coating for a transpatent substrate, the coating including at least one electrically conductive layer, wherein the sheet resistance of the coating is less than about 1010 ohm/square. The coating is preferably h... | 02/08/2005 |
| 6850375 | Lighting apparatus and image pickup apparatus The present invention discloses a lighting apparatus including a light source, an optical member that is placed in front of the light source and provided with a reflecting surface for reflecting light from the light source or prism sections each made up of a refract... | 02/01/2005 |
| 6849114 | Dispersion comprising silicon/titanium mixed oxide powder, and green bodies and shaped glass articles produced therefrom Aqueous dispersion comprising silicon/titanium mixed oxide powder with a BET surface area of 5 to 500 m2/g which has been prepared by flame hydrolysis and has a titanium dioxide content of 0.5 to 20 wt. %, based on the powder, water and at least one pH-re... | 02/01/2005 |
| 6847491 | Hybrid microlens array The disclosed hybrid microlens enables the economical production of large diameter, high numerical aperture refractive microlens by microfabrication. The hybrid microlens has a combination of a refractive microlens formed on a thin layer of high index material such ... | 01/25/2005 |
| 6847492 | Optical stack of laminated removable lenses for face shields, windows, and displays A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive. The adhesive is uninterrupted. The lens and the adhesive have refraction mismatch of less than 0.2... | 01/25/2005 |
| 6847490 | Optical probe accessory device for use in vivo diagnostic procedures The present invention recognizes that optical probes function both as medical access devices and as instruments which collect complex optical data. The invention provides an optical probe accessory device which can access luminal spaces within the body of a patient ... | 01/25/2005 |
| 6845119 | Laser illuminating apparatus for illuminating a strip-shaped or linear area A laser illuminating apparatus that illuminates a linear or strip-shaped area (S) of sheet material (B) with high radiant power contains a diode laser (2) whose output is followed by two mutually orthogonally oriented rod lenses (4, 6) whose focal leng... | 01/18/2005 |
| 6836372 | Electrostatic corrector An electrostatic corrector with a rectilinear optical axis has two corrective parts, which are arranged one behind the other along the optical axis and which have respective quadrupole fields and superimposed circular lens fields. The astigmatic intermediate image o... | 12/28/2004 |
| 6836384 | Solid immersion lens structures and methods for producing solid immersion lens structures A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity ... | 12/28/2004 |
| 6836371 | Optical elements and methods for making thereof Optical elements are made using micro-jet printing methods to precisely control the type, position and amount of polymer deposited onto a substrate. In preferred embodiments, the proportions of two or more different polymer compositions are varied over the course of... | 12/28/2004 |
| 6835683 | Quartz glass member and projection aligner A silica glass member of the present invention is one wherein when a composition thereof is expressed by SiOx, x is not less than 1.85 nor more than 1.95, wherein a concentration of hydrogen molecules included therein is not less than 1×1016 m... | 12/28/2004 |
| 6833427 | Polycarbonate resin molding material for optical use A polycarbonate resin molding material for optical use which is pellets formed from a polycarbonate resin and having a bulk density of 0.72 kg/l or more and an optical disk substrate formed therefrom. According to the present invention, use of the above pelle... | 12/21/2004 |
| 6833193 | Polycarbonate molded bodies with improved optical properties A polycarbonate molding having improved optical properties is disclosed. The molding features an angle of deflection αε (min) determined in a accordance with DIN 52305-A-AS of ≦2.0 and a refractive index Dε (min) determined in accordance w... | 12/21/2004 |
| 6831790 | Optical element, method for producing the same, and optical pickup An optical element having a substrate formed by an optical material and able to improve mechanical strength, wherein the substrate has a convex part functioning as a convex lens, a flat part positioned around the convex part, and an outer circumference part position... | 12/14/2004 |
| 6822803 | Optical component with multiple glass optical elements and manufacturing method thereof The present invention relates to an optical component in which a plurality of glass optical elements are integrated thus improving the productivity and providing consistent quality. The optical component of the present invention comprises a plurality of lens parts | 11/23/2004 |
| 6821458 | Near-net-shape polymerization process and materials suitable for use therewith This disclosure describes a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymerizable... | 11/23/2004 |
| 6818276 | Light management film with colorant receiving layer Disclosed is a light management film containing a substrate, light shaping elements with a roughness average of at least 3 micrometers, and a layer capable of receiving a colorant density of at least 0.5. ... | 11/16/2004 |
| 6815526 | Wholly aromatic polyester and polyester resin composition There is provided a wholly aromatic polyester which has excellent heat resistance and can be produced by an ordinary polymerizer and melt-molded with ease. That is, a wholly aromatic polyester which contains, as essential constituents, the constitutional unit repres... | 11/09/2004 |
| 6813097 | Lenses capable of post-fabrication modulus change Novel optical elements are provided which are capable of post fabrication modifications. Specifically, the invention includes lenses, such as intraocular lens, which can undergo changes in storage modulus after fabrication. ... | 11/02/2004 |
| 6809886 | Method for manufacturing a combined solid immersion lens (SIL) and submicron aperture, and device thereof The invention relates to an integrated method for manufacturing a combined solid immersion lens (SIL) and submicron aperture, and device thereof, comprising depositing a sacrificial layer on a substrate, coating a photoresist on the sacrificial layer and using photo... | 10/26/2004 |
| 6807011 | Humidity tolerant scan lens A lens has a body (1), reinforcing extensions (3a, 3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as most ... | 10/19/2004 |
| 6801369 | Preform for an optical lens, an optical lens, and a method of manufacturing an optical lens The method of manufacturing an optical lens in accordance with the present invention includes a drawing optical lens preform preparing step of preparing a drawing optical lens preform comprising a first curved face part, formed aspheric in one side face thereof, fun... | 10/05/2004 |
| 6801688 | Fiber optic collimator apparatus and method Embodiments of the present invention are directed to a compact and stable fiber optic collimator that takes light from one or more optical fibers and generates one or more beams of collimated light at an increased specified diameter. The collimator is configured for... | 10/05/2004 |
| 6790927 | Optical polycarbonate and applications thereof This specification describes an optical polycarbonate composition obtained by the melt polycondensation of a bisphenol and a carbonic diester in the presence of an alkaline compound catalyst, wherein said optical polycarbonate composition comprises (i) a compound ex... | 09/14/2004 |
| 6785053 | Threaded lens coupling to LED apparatus A lens adapted for securement to a holder, for transmission of light, comprising a lens body, defining an axis, threading on the lens body extending about said axis, for reception in threading associated with the holder. ... | 08/31/2004 |
| 6778732 | Generation of high-power, high brightness optical beams by optical cutting and beam-shaping of diode lasers An optical beam-shaping element is used to produce a high brightness laser beam from a diode bar or a single emitter diode, allowing for efficient coupling of the beam into an optical fiber. An embodiment of the beam-shaping element allows the construction of a quas... | 08/17/2004 |
| 6754002 | Photolithography methods and systems Lithographic methods are disclosed. In one such method, a pulsed ultraviolet radiation source for producing ultraviolet lithography radiation having a wavelength shorter than about 300 nm at a fluence of less than 10 mJ/cm2/pulse and a high purity fused s... | 06/22/2004 |
| 6750313 | Resin composition and articles molded therefrom A resin composition having a high refractive index and low dispersion characteristics including a carbonate residue, a phosphonic acid residue and a dihydric phenol residue, wherein the mol fractions of the phosphonic acid residue and the carbonate residue satisfy | 06/15/2004 |
| 6747119 | Method and system for preparing a polycarbonate, copolymerization reagent and polycarbonate A method for preparing a polycarbonate comprises preparing a free hydroxyl-containing polycarbonate and reacting the hydroxyl-containing polycarbonate with a mixture of (B) a symmetrical optionally activated aromatic carbonic acid diester and (C) an optionally subst... | 06/08/2004 |
| 6739720 | PROCESS FOR PRODUCING ALICYCLIC (METH)ALLYI ESTER MONOMER, ALICYCLIC (METH)ALLYL ESTER COMPOUND, PRODUCTION PROCESS OF THE COMPOUND, PLASTIC LENS COMPOSITION CONTAINING THE COMPOUND, PLASTIC LENS OBTAINED BY CURING THE COMPOSITION, AND PRODUCTION PROCESS OF THE PLASTIC LENS An alicyclic (meth)allyl ester monomer obtained by a specific production process. An alicyclic (meth)allyl ester compound for plastic lenses, which can be obtained by a simple and easy production process and which can endure a long-term storage, is produced using th... | 05/25/2004 |
| 6734272 | Polyurethane resin composition and optical lens having impact resistance A polyurethane resin composition for casting is provided which for use as a molding material for optical lenses, resistance to discoloration and durability are excellent and the pot life is long enough take time for casting process. It comprises a polyisocyanate, a ... | 05/11/2004 |
| 6726795 | Radiation-curable, cyanoacrylate-containing compositions A radiation-curable composition which includes a cyanoacrylate component or a cyanoacrylate-containing formulation; a metallocene component; and a polymerizingly effective amount of a photoinitiator to accelerate the rate of cure is provided. ... | 04/27/2004 |