Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 7286244 | Analyzer An analyzer includes an optical tunable filter 1 for selectively outputting light having a predetermined wavelength, and a PD 421 for receiving light outputted from the optical tunable filter 1 and then passed through or reflected by an object t... | 10/23/2007 |
| 7229684 | Light-stable colored transparent composite films Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment which is visually associated with, and satisfies the color deficiency ... | 06/12/2007 |
| 7081255 | Antifungal compositions with improved bioavailability The present invention is concerned with novel pharmaceutical compositions of itraconazole which can be administered to a mammal suffering from a fungal infection, whereby a single such dosage form can be administered once daily, and in addition at any time of the da... | 07/25/2006 |
| 7071457 | Optical filter stack Optical devices and related methods are provided. One example of the optical device includes two or more optical members joined together to form a stack. Each of the optical members in the stack includes a reflecting surface that has a corresponding slope, where the... | 07/04/2006 |
| 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 |
| 7006741 | Contact-field optical microscope A broad-spectrum, high spatial and time resolution contact-field optical microscope comprises a fiber optical taper, a vacuum chamber, a photocathode, a magnetic lens photoelectron image enlarger, a micro-channel plate image intensifier, a phosphor screen and a CCD.... | 02/28/2006 |
| 6953618 | Light-stable colored transparent composite films Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment which is visually associated with, and satisfies the color deficiency ... | 10/11/2005 |
| 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 |
| 6928090 | Device and process for mode-locking a laser The invention relates to a device for a laser blocked-mode, especially for a pulsed laser, comprising a cavity resonator (20) which is defined by a first mirror (1) and a second mirror (8), and fitted with an amplifying active laser medium (5... | 08/09/2005 |
| 6918673 | Protective optical filter assembly A protective optical filter assembly for thin film filters having two transparent substrates facing one another and separated by a resilient element, a sealed region is formed between the transparent substrates by applying a compressive force that compresses the res... | 07/19/2005 |
| 6891686 | Medium for a color changer A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of th... | 05/10/2005 |
| 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 |
| 6813087 | Multi-mode color filter A multi-mode color filter 400 having an inner hub region 402 used to mount the color filter 400 to a motor shaft. A first track 404 and a second track 406 of color filter segments arc formed on the color filter, as is an optional c... | 11/02/2004 |
| 6769792 | High intensity lighting projectors A high intensity light projector for stage, architectural and similar applications includes a controllable image quality projection gate providing advanced visual effects. The projection gate, capable of selectively scattering or transmitting incident light, may be ... | 08/03/2004 |
| 6721477 | Dispersion-free optical filters The filtering of optical signals, and in particular the interleaving/de-interleaving of optical signals is becoming a necessary step in Dense-Wavelength Division Multiplexing (D-WDM), because of a requirement for smaller channel spacing due to higher levels of traff... | 04/13/2004 |
| 6687063 | Optical system for creating colored fields of light and components therefor Units for projection of profiled images and for floodlighting suffer from a tradeoff between the quality of the illuminated field and efficiency. The hue, saturation, and intensity must be continuously controllable, and the quality of the illuminated fiel... | 02/03/2004 |
| 6666944 | Method of manufacturing optical filter The present invention has an object to provide a manufacturing method of readily realizing an optical filter having a flat transmission characteristic and a superior cutoff characteristic relative to adjacent bands. To this end, with the manufacturing met... | 12/23/2003 |
| 6639723 | Variable optical attenuator with polarization compensation An optical attenuator for attenuating an incident optical beam comprises at least two attenuating devices, each having a polarization dependent attenuation characteristic with a preferred orientation. The attenuating devices are arranged in the optical be... | 10/28/2003 |
| 6614606 | Methods and apparatus for providing color images from monochromatic night vision and other electro-optical viewing devices Apparatus and methods for converting a monochrome night vision or other electro-optical device into one that provide a sensation of full color, including from red to blue with white and black. Preferred apparatus of the invention comprise an electro-optic... | 09/02/2003 |
| 6554454 | Filter, illumination device and illumination method It is an object to provide an improved filter or illumination device. In order to achieve the above object, an illumination device is provided having multiple optical color filters wherein a first time period, required for at least one of the multiple opt... | 04/29/2003 |
| 6532059 | Surveying instrument having an optical distance meter A surveying instrument includes an optical distance meter which has a light-transmitting optical system and a light-receiving optical system, the light-receiving optical system including a light-receiving element; a first wavelength selection filter and a... | 03/11/2003 |
| 6504661 | Optical device with protected thin optical films Optical devices using thin optical films to adapt the characteristics of a light radiation. An optical device includes an optical structure and thin optical films interposed in the path of a light radiation that gets propagated towards the optical structu... | 01/07/2003 |
| 6481625 | Laser scanning bar code symbol reader employing variable pass-band filter structures having frequency response characteristics controlled by time-measurement of laser-scanned bar code symbol The effects of paper/substrate noise are significantly reduced in multi-focal zone laser scanning systems by processing analog scan data signals with a scan data signal processor having a plurality of pass-band filters and amplifiers that are automaticall... | 11/19/2002 |
| 6481851 | Adjustable contrast reflected display system A transparent-reflective display constructed to be alterable so that reflected images are viewed upon a transparent surface that can alter to a darkened surface, thereby changing contrast of the reflection. An assembly consisting of a beamsplitter and an ... | 11/19/2002 |
| 6411451 | Laser protection system The present invention pretains to a device for protecting the human eye by means of a narrow bandwith interference filter which filters out one or more specific wavelengths of light emitted in the form of a coherent, concentrated beam that is laser radiat... | 06/25/2002 |
| 6334924 | Method of manufacturing optical filter The present invention has an object to provide a manufacturing method of readily realizing an optical filter having a flat transmission characteristic and a superior cutoff characteristic relative to adjacent bands. To this end, with the manufacturing met... | 01/01/2002 |
| 6278563 | Scrolling color changer A combination color filter having at least two dual-hue color-changing absorptive substrates. A desired hue and saturation is achieved by using light absorbing gels for a plurality of selected hues, preferably the three subtractive primary colors. The uni... | 08/21/2001 |
| 6263166 | Exposure count indicator for camera A camera has a rear cover part, and a rotatable counter dial with a numerical scale of exposure count indicia to be successively viewed. Each of the indicia has the same color. A label on the rear cover part is superimposed to the counter dial and has the... | 07/17/2001 |
| 6259864 | Exposure count indicator for camera A camera has a rear cover part, a label on the rear cover part, and a numerical scale of exposure count indicia to be successively viewed. The numerical scale of exposure count indicia is located on the label, and each of the indicia has the same color. A... | 07/10/2001 |
| 6259572 | Photographic color effects lighting filter system A photographic color effects lighting filter system made up of a series of lighting filters which are designed to be placed in front of one or more lighting sources. The lighting color effects filter series is made up of groups of filters wherein each of ... | 07/10/2001 |
| 6249372 | Fluorescent conversion filter and color display device using the same A fluorescent conversion filter includes a fluorescent conversion film which facilitates converting light from a wavelength region between near ultraviolet and green to light in the red region which can be finely patterned. A color display device can be p... | 06/19/2001 |
| 6218194 | Analytical methods and apparatus employing an optical sensor device with refractive index modulation A method for monitoring the interaction of molecular species utilizes a sensor device comprising a substrate (1) with a waveguide (2) formed on the surface thereof. A grating (3) is formed in one of the surfaces of the waveguide (2). A beam of light (6) i... | 04/17/2001 |
| 6204941 | Optical filtering device An optical filtering device incorporates first and second prisms, the latter prism counteracting the angular dispersion of the former prism. A spatial light modulator provides a positionally variable optical stop located to block radiation within a wavele... | 03/20/2001 |
| 6078442 | ND filter In a concentric ND filter in which multi-layered circular ND filter elements whose diameter is decreased stepwise toward the uppermost layer from the lowermost layer are concentrically provided on a first transparent substrate, a surrounding space of the ... | 06/20/2000 |
| 6076932 | Light absorber and optical equipment This invention provides a light absorber which can be used for optical equipment like optical-disk equipment and a liquid crystal display. The light absorber has a layered structure including a light absorbing layer and a transparent layer. The light abso... | 06/20/2000 |
| 6028724 | Absorbent laser resistant structure A multi-layer structure for controlling the transmission laser radiation including an outer layer which is slightly absorbent to incident laser radiation and an intermediate layer which is substantially absorbent to incident laser radiation to achieve sig... | 02/22/2000 |
| 6021008 | Beam scattering laser resistant structure A multi-layer structure for controlling the transmission laser radiation including an array of polydispersing scatterers in an intermediate layer. The outer layer is made of a material which partially ablates when exposed to incident laser radiation, gene... | 02/01/2000 |
| 6016232 | Heat conducting laser resistant structures A multi-layer structure for controlling the destructive effects of laser radiation including means within the structure for conducting the heat generated in the outer layer by the incident laser radiation away from the outer layer to achieve significant m... | 01/18/2000 |
