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| Number | Title | Issue Date |
| 8345364 | Optical limiting using plasmonically enhancing nanoparticles There is provided an optical limiter device for protecting an object from incident light having a wavelength in the visible, infrared or ultraviolet spectrum. The device comprises a plurality of nanoparticles of a metallic material including free electrons that unde... | 01/01/2013 |
| 7894148 | Absorption type multi-layer film ND filter and process for producing the same An absorption type multi-layer film ND filter having a substrate formed of a resin film and on at least one side thereof an absorption type multi-layer film of oxide dielectric film layers and absorption film layers which are alternately wherein the oxide dielectric... | 02/22/2011 |
| 7710670 | ND filter An ND filter including an alternating layer which is composed of two films being alternately stacked and formed on a transparent substrate, the two films having different refractive indexes, wherein the alternating layer has a substrate-side reflected light attenuat... | 05/04/2010 |
| 7483226 | ND filter, manufacturing method thereof, and aperture device An ND filter of a thin film type is formed on a transparent substrate, such that a light-absorbing film and a dielectric film are laminated on the transparent substrate. The transparent substrate is formed of a resin film which can be fed at a constant speed. The li... | 01/27/2009 |
| 7440204 | ND filter of optical film laminate type with carbon film coating An ND filter is composed of a transparent substrate, a laminate of a light-absorbing film and a dielectric film formed on the transparent substrate, and a carbon film formed to clad a surface of the laminate of the light-absorbing films and the dielectric films. Dep... | 10/21/2008 |
| 7440205 | Variable intensity dimmer A dimming system (300) for dimming electromagnetic radiation intensity of a radiating unit, such as e.g., an optical system. The dimming system (300) is adjusted to provide a constant electromagnetic radiation intensity over the cross-section of the im... | 10/21/2008 |
| 7436449 | Electronic imaging system The invention relates to an electronic imaging system such a video camera or digital camera, whose thickness or size is reduced while performance degradation is reduced as much as possible. The system comprises a zoom lens system comprising a first G1, a seco... | 10/14/2008 |
| 7428051 | Device for the IR-spectrometric analysis of a solid, liquid or gaseous medium The invention relates to a device for the IR-spectrometric analysis of a solid, liquid or gaseous medium. The device includes a process probe, which has a reflection element. The device additionally includes a linear variable filter, at least one detector element, a... | 09/23/2008 |
| 7388723 | ND filter and light quantity diaphragming device including the same A thin film type ND filter being inexpensive and excelling in durability. There is provided ND filter (0) comprising transparent substrate (1) and, superimposed thereon, light absorption films (3,5) and dielectric films (2,4,6), wherein t... | 06/17/2008 |
| 7373038 | Optical switch having a reflective component A reflective optical switch for use in optical systems, such as fiber optic communications networks, is disclosed. The optical switch includes not only signal transmission characteristics, but also signal reflection capability. The optical switch includes a semicond... | 05/13/2008 |
| 7330214 | Diaphragm apparatus of lens for CCTV camera A diaphragm apparatus of a lens for a CCTV camera includes a diaphragm blade which opens and closes a stop aperture of the diaphragm apparatus; and an ND filter which is attached to the diaphragm blade, the ND filter having a spectral transmittance so that the trans... | 02/12/2008 |
| 7300438 | Electrophysiology catheter for mapping and/or ablation Catheters for mapping and/or ablation are disclosed. In one embodiment, the catheter comprises a handle, a flexible shaft, a tip assembly, and a cable. The handle includes an actuator and is attached, at its distal end, to the proximal end of the flexible shaft. The... | 11/27/2007 |
| 7294360 | Conformal coatings for micro-optical elements, and method for making the same A micro-optical element is produced through vapor deposition techniques, such as atomic layer deposition. An optical structure having a surface with uneven structures is exposed to one or more precursor vapors to create a self-limiting film growth on the surface of ... | 11/13/2007 |
| 7295356 | Method for improved holographic recording using beam apodization An apodization system for achieving a substantially uniform intensity profile of a modulated reference beam on a holographic recording medium. The substantially uniform intensity profile serves to improve the quality of any and all recorded holograms. In high-densit... | 11/13/2007 |
| 7295391 | ND filter for aperture device and aperture device comprising ND filter This invention decreases deformation of a plastic substrate caused by thermal expansion and contraction in an evaporation process of forming a multi-layered film of an ND filter, thus helping prevent wrinkles. The plastic substrate serving as the base of the ND filt... | 11/13/2007 |
| 7283690 | Optical waveguide device, method of manufacturing the same, and optical communication equipment An optical wave guide device is manufactured by bonding an optical wave guide to an optical modulator through an upper cladding layer. The optical wave guide includes a glass substrate, a lower cladding layer and cores, and the optical modulator includes elements (h... | 10/16/2007 |
| 7253376 | Methods and apparatus for truncating an image formed with coherent radiation Methods and apparatus for truncating an image formed with coherent radiation. The optical relay system is adapted to form a line image at the image plane. The image is truncated by a variable aperture at or near the aperture plane conjugate to the image plane, to bl... | 08/07/2007 |
| 7242543 | Filter device A filter device including a red filter unit, a green filter unit, a blue filter unit and at least one of a yellow filter unit, a cyan filter unit and a magenta filter unit is provided. Red light, green light and blue light are produced when white light passes throug... | 07/10/2007 |
| 7239464 | Absorption type multi-layer film ND filter An absorption type multi-layer film ND filter having a substrate and an optical multi-layer member consisting essentially of metal layers each composed chiefly of nickel (Ni) and dielectric layers each formed of any one of SiO2, Al2O3 | 07/03/2007 |
| 7234815 | Optical viewing device having an apparatus for partial reduction of the illumination intensity The invention concerns an optical viewing device which incorporates a spectral filter to partially reduce the intensity or wavelength(s) of light transmitted to a specific region of a specimen which may be a human eye. The reduction in light intensity or wavelength ... | 06/26/2007 |
| 7230779 | ND filter and aperture diaphragm apparatus An ND filter is made of a transparent substrate having a plane. An optical film is formed on the plane of the transparent substrate. The optical film has a lamination structure including a light absorption film and a dielectric film, and has a variable transmission ... | 06/12/2007 |
| 7189014 | Production process of light amount-adjusting member, light amount-adjusting member, light amount-adjusting device and photographing apparatus A process for producing a light amount-adjusting member, such as an ND filter, that comprises the steps of providing a transparent base material and a coloring liquid; and applying a coloring liquid to the base material by ejecting the coloring liquid to the base ma... | 03/13/2007 |
| 7184594 | Pattern matching method and device, position determining method and device, position aligning method and device, exposing method and device, and device and its production method A template creating unit (32) creates a waveform template formed of expectations of a signal waveform of the value of each parameter and a probability template formed of information on occurrence probability of each expectation of the parameters on the basis ... | 02/27/2007 |
| 7163317 | Color-changing apparatus, and associated method, for a light assembly Color-changing apparatus, and an associated method, for a lighting assembly. One or more dichroic filters are selectably positioned in the path of a light beam generated by a light source. A positioner supportively positions the dichroic filter and effectuates its t... | 01/16/2007 |
| 7162141 | Electro-conductive anti-reflection coating The present invention relates to an electro-conductive, anti-reflection coating with the conventional half-wave, high-index layer sandwiched between two quarter-wave, low-index layers, in which the high-index, half-wave layer forms an electro-conductive layer, and i... | 01/09/2007 |
| 7139463 | Compositions and devices for thermooptically controlled switching and filtering The invention relates to polymer compositions which enable thermooptic control of signal attenuation in the ultraviolet, visible and near infrared (NIR) regions of the electromagnetic spectrum, and devices incorporating such compositions. The compositions are derive... | 11/21/2006 |
| 7110195 | Monolithic hard pellicle A monolithic optical pellicle and method of making used to protect a photomask during photolithography processing. The monolithic optical pellicle is comprised of a pellicle plate having a recessed central portion integrally formed with a perimeter frame of the pell... | 09/19/2006 |
| 7070344 | Production process of light amount adjustment member, light amount adjustment device and photographing apparatus A light amount adjustment member, which causes little deterioration of image quality by diffraction at a grain boundary between ink dots in a colored portion, can be simply produced at low production cost and high yield. The light amount adjustment member has a dens... | 07/04/2006 |
| 7065115 | External cavity organic laser A thin-film organic laser, that includes: a substrate; a bottom mirror provided on the substrate; at least one active region deposited on the bottom mirror, wherein the at least one active region includes organic gain material; an external mirror provided at a prede... | 06/20/2006 |
| 7042662 | Light amount adjusting device, and optical device using the light amount adjusting device To provide an ND filter and a light amount adjusting device, in which a deterioration of optical performance of an optical system is small, and in addition, an optical system having the light amount adjusting device, and an optical device having the optical system. ... | 05/09/2006 |
| 7027238 | Method and apparatus for color-neutral brightness regulating of a light source A method and an apparatus for regulating the brightness of a light source (2), configured as an incandescent lamp, in the illumination beam path (8) of a microscope (1), the brightness of the light source (2) being modifiable by increasin... | 04/11/2006 |
| 7019917 | Lens barrel A lens barrel includes an optical system including a short focal length for a wide angle of view; and an ND filter in the shape of a disc which is provided on an optical axis of the optical system. An optical density of the ND filter decreases in a direction radiall... | 03/28/2006 |
| 7015510 | White light emitting phosphor blend for LED devices There is provided a white light illumination system including a radiation source, a first luminescent material having a peak emission wavelength of about 570 to about 620 nm, and a second luminescent material having a peak emission wavelength of about 480 to about 5... | 03/21/2006 |
| 7016129 | Optical filter, method of making optical filter, light amount adjusting apparatus and optical equipment An optical filter which can be manufactured at low cost and is excellent in optical characteristics is disclosed. The optical filter has a transparent substrate and a first layer which is formed on the surface of the transparent substrate. Here, the first layer has ... | 03/21/2006 |
| 6979083 | Eyeglass lens with multiple optical zones having varying optical properties for enhanced visualization of different scenes in outdoor recreational activities A lens for eyeglasses is provided with two or more optical zones on the lens body having different optical properties that enhance visualization of different scenes, including target objects within the scenes, that are associated with a specific recreational activit... | 12/27/2005 |
| 6974232 | Compact lighting system with improved light transmission and color filters A lighting system including a light source, a means of collecting and focusing light from the light source, an aperture, a filter module containing at least one color filter, and an image lens. A light beam from the light source is focused through the aperture to de... | 12/13/2005 |
| 6963437 | Devices incorporating electrochromic elements and optical sensors The device of the present invention includes an electrochromic element having a transmittance that varies in response to an electrical signal, a base substrate disposed in spaced relation to the electrochromic element, a seal disposed between the base substrate and ... | 11/08/2005 |
| 6952314 | Method of manufacturing ND filter, and aperture device and camera having ND filter The present invention provides a method of manufacturing an ND filter having a gradation density distribution, the ND filter, and an aperture device and a camera having the ND filter. A structure thereof is as follows. The method of manufacturing an ND filter having... | 10/04/2005 |
| 6950242 | Design and fabrication process for a lens system optically coupled to an image-capture device An optical system operable to transmit an energy flux is described. A first substantially spherical lens includes first and second substantially hemispherical portions joined at an interface. The interface includes a partially reflective material on a first substant... | 09/27/2005 |
| 6944578 | Contact hole profile and line edge width metrology for critical image control and feedback of lithographic focus A method uses three dimensional feature metrology for implementation of critical image control and feedback of lithographic focus and x/y tilt. The method is for measuring 3 dimensional profile changes in a photo sensitive film and feeding back compensatory exposure... | 09/13/2005 |
