Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8111472 | Color wheel The present invention relates to a color wheel which allows for an easy to perform balancing. The color wheel comprises a motor and a color rotor with a carrier. Filter segments are mounted to the carrier. In addition the color rotor comprises a body with a surface ... | 02/07/2012 |
| 7940484 | Color wheel and optical device employing same A projector includes a light source assembly, a digital micro-mirror device, and a projection lens. The light source assembly includes a lamp and a color wheel positioned for receiving light generated by the lamp. The color wheel includes a motor having a contacting... | 05/10/2011 |
| 7869151 | Color wheel with segment fixing mechanisms, and manufacturing method of same A color wheel comprises sectorial color filter segments and a support member. Protrusions are disposed at the support member and engaged with either through-holes or cavities as segment fixing mechanisms formed at the color filter segments, whereby the color filter ... | 01/11/2011 |
| 7839587 | Color wheel A color wheel has one or a plurality of color filter segments made from a first material, typically glass, having a coefficient of thermal expansion that is substantially different from a carrier, which is made from a second material, typically aluminum. An intermed... | 11/23/2010 |
| 7813064 | Color wheel assembly and color wheel with same A carrier, a locking member, a color filter unit and an elastic member are provided. The carrier includes a main body, a shaft and a lock-receiving portion. The shaft coaxially protrudes outwardly from the main body. The lock-receiving portion is defined in the shaf... | 10/12/2010 |
| 7764451 | System and method for use in displaying modulated light A system for use in displaying modulated light includes a light source operable to generate a light beam. The system also includes a color wheel for receiving the light beam. The color wheel comprises a plurality of translucent segments. The plurality of translucent... | 07/27/2010 |
| 7742249 | Color wheel A color wheel includes a fixing base, a ring filter, a washer, and a fixing ring. The fixing base has a protrusion portion and a supporting portion. The ring filter is fit on the protrusion portion. An inner margin of the ring filter leans on the supporting portion.... | 06/22/2010 |
| 7738199 | Filter device A filter device has a frame, an optical filter, two magnetic members and two covers. The frame has a window and two rails attached to the opposite sides of the window. Each rail has two coil holding portions. The optical filter is able to slide between the rails and... | 06/15/2010 |
| 7486455 | Color wheel with segment fixing mechanisms, and manufacturing method of same A color wheel comprises sectorial color filter segments and a support member. Protrusions are disposed at the support member and engaged with either through-holes or cavities as segment fixing mechanisms formed at the color filter segments, whereby the color filter ... | 02/03/2009 |
| 7457063 | Color wheel and color filter assembly thereof A color filter assembly rotates around a central axis thereof and includes a carrier defining a radially extending holes, a color filter fixed to the carrier, and a balancing element movably received and selectively positionable along each hole. Selectively position... | 11/25/2008 |
| 7453657 | Color wheel A color wheel including a motor body, a housing, a spacer and a color filter. In this case, the housing is set to a side of the central axis of the motor body. The spacer is placed over the housing. The color filter is set on one side of the spacer, which is opposit... | 11/18/2008 |
| 7443621 | Balancing method for color wheel A color wheel is provided for use in the illumination system of a projector. The color wheel includes a rotor and a motor for rotating the rotor, the rotor includes a ring shaped translucent area formed by color filter segments, the translucent area being adapted to... | 10/28/2008 |
| 7435479 | Light-controlling element and method for manufacturing the same The present invention relates to a light-controlling element comprising a polymer gel composition layer containing: a holding member; liquid held by the holding member; and a stimulus-responsive polymer gel which is held by the holding member and which changes in vo... | 10/14/2008 |
| 7405095 | Method for producing color-wheel segments A method for producing from a plate-shaped substrate circular sections for use for instance in a color wheel encompasses inter alia such steps as positioning predefined edge break lines in such fashion that the circular sections to be separated at a subsequent point... | 07/29/2008 |
| 7399087 | Segment type color wheel and manufacturing method of same A color wheel includes a plurality of color filter segments disposed so as to form a disk configuration, and a support member to fixedly set the plurality of color filter segments in place. Each of the color filter segments has a circular outer circumference, an inn... | 07/15/2008 |
| 7347568 | Color wheel apparatus and optical engine having the same Disclosed is a color wheel apparatus for a DLP type display device having a color wheel unit, which has a color filter and a rotation part for supporting the color filter and rotating integrally with the color filter; a color wheel supporter for rotatably supporting... | 03/25/2008 |
| 7307805 | Flexible NVIS filter A flexible filter for use in filtering wavelengths of light that interfere with night vision awareness systems is disclosed. A filtering material is applied to a first flexible film in a substantially liquid form and is cured thereto using ultraviolet light. The fil... | 12/11/2007 |
| 7305905 | Rotatable member with an annular groove for dynamic balancing during rotation A rotatable member is adapted for dynamic balancing by the addition of balancing weights in the form of high speed projectiles fired at the member during rotation in timed relationship with the rotation of the member so as to impact the member at specific circumaxia... | 12/11/2007 |
| 7280735 | Combined optical fiber wheel, beamsplitter, switch, and logic gate A machine that can pass, reflect, filter, or block light along multiple paths. The specific portions of light that can be passed, reflected, blocked, or filtered, are controlled by an optical routing subassembly. This optical routing subassembly can be manipulated t... | 10/09/2007 |
| 7268961 | Color wheel, and method and jig for producing same In a color wheel comprising a plurality of color filter segments arranged so as to form a disk and a support member fixed to the color filter segments, the color filter segments are each outlined only by a circular arc and two straight lines passing through the cent... | 09/11/2007 |
| 7253977 | Monolithic color wheel and process for fabrication of the same A method for fabricating a monolithic color wheel. The method includes (a) preparing a square transparent substrate; (b) forming a plurality of color filters on the square transparent substrate; and (c) cutting the square transparent substrate and the color filters ... | 08/07/2007 |
| 7249540 | Connector adapter An adapter for installing a connector to a terminal post, wherein the connector is attached to a cable, is presented. In an embodiment, the adapter is comprised of an elongated collet member having a longitudinal axis comprised of a first collet member end, a second... | 07/31/2007 |
| 7224865 | Optical multiplexing/multiplexing devices and method for making the same Techniques for designing optical devices that can be manufactured in volume are disclosed. An optical assembly is build individually and includes a first tube with one end being polished to a slanted angle and attached with a filter. Because of the slanted angle, a ... | 05/29/2007 |
| 7218464 | Aligning-assembling method for color wheel A coating method for a color filter, including the steps of: coating a first photoresist layer on a substrate; forming at least a aligning pattern and a first color film pattern on the first photoresist layer by exposure and development; coating a first dye on the a... | 05/15/2007 |
| 7209303 | Method for balancing color wheel and structure thereof A method for balancing a color wheel. The rotational unbalance vector of a driving motor is measured, including its unbalance amount and direction. The unbalance of a color wheel is adjusted to make its unbalance amount to be the same of the driving motor. The color... | 04/24/2007 |
| 7199952 | Color wheel, and color wheel assembly incorporating same There is provided a color wheel including a plurality of color filters arranged so as to form a disk, and a retainer member disposed at a center of the disk and formed into a C-ring defining an open mouth portion through which an area of one color filter is exposed.... | 04/03/2007 |
| 7190536 | Color filter disc and process of making the same A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular surface. Each of the colored segments is provided by partially masking ... | 03/13/2007 |
| 7187509 | Color wheel and manufacturing method of same There is provided a color wheel which includes: a color filter disk having a side surface; and a rotary member having a circumferential surface and adhesively attached to the center portion of the color filter disk. In the color wheel described above, a portion of a... | 03/06/2007 |
| 7180691 | Color wheel assembly A color wheel assembly includes a carrier, a color filter assembly mounted coaxially on the carrier and formed by a plurality of annularly arranged filter segments, and a connecting unit including a plurality of annularly arranged limiting pieces connected respectiv... | 02/20/2007 |
| 7173780 | Color wheel with dovetailed balancing groove A color wheel with dovetailed balancing groove, includes a motor, a metal ring and a set of color filter set. At a rotatable portion of the color wheel, such as the peripheral portion between the metal ring and the housing of the motor, or on the peripheral surface ... | 02/06/2007 |
| 7161749 | Image pickup apparatus An image pickup apparatus is provided. The image pickup apparatus permitting a conversion lens to be mounted and dismounted, wherein a lens hood is composed of a base portion on the mounting side and a tubular portion on the front side, the base portion and the tubu... | 01/09/2007 |
| 7158323 | Apparatus for switching optical low pass filters for use in optical instrument Disclosed is an optical filter switching apparatus used in an optical instrument for converting externally input image information into video image information and outputting the video image information. The apparatus comprises: an optical filter holding section hol... | 01/02/2007 |
| 7137705 | Optical device with optical modulator fixation-enhancing structure and projector A cross dichroic prism as a color-combining optical device and optical modulators constituting an optical device body are fixed with insulating pins being interposed. The optical device body includes a base and reinforcing members, supporting surfaces for supporting... | 11/21/2006 |
| 7133198 | Changer device for optical elements The invention proposes a changer device for optical elements (2a–2e) in stereomicroscopes with which a pair of optical elements (2) can be inserted in the two stereo channels (3) of a stereomicroscope. A particularly compa... | 11/07/2006 |
| 7113353 | Method of fixing color wheel to motor A color wheel is attached to a hub of a motor before the hub is built in the motor. In this process, portions of the hub which do not impact the rotation accuracy of the motor are held by appropriate clamping means and attaching means so that excessive stress and he... | 09/26/2006 |
| 7108918 | Optical filter having filter layer containing infrared absorbing dye and ultraviolet absorbing agent An optical filter comprises a transparent support and a filter layer. The filter layer contains a dye and a binder polymer. The dye is in an aggregated form exhibiting an absorption maximum in the wavelength region of 750 to 1,100 nm. The support, the filter layer o... | 09/19/2006 |
| 7102832 | Method and apparatus for modulating infrared radiation A chopper for an imaging system includes a frame and a sheet that have different coefficients of thermal expansion. The frame has a space within it, and has at least one opening that allows radiation to pass through the space. The sheet has structure which influence... | 09/05/2006 |
| 7099589 | Space-division multiplex full-duplex local area network An optical wireless local area network according to the present invention is an optical wireless local area network for interconnecting a plurality of terminals having a line-of-sight optical communication function. In the optical wireless local area network, a base... | 08/29/2006 |
| 7092490 | Filter system for radiological imaging A filtering system for use in, for example, a radiological imaging in a mammography apparatus. The system has a roundabout carrying a set of filtration plates. Each filtration plate is held on the roundabout by a joint. In a parked or stationary position, each plate... | 08/15/2006 |
| 7063425 | Color wheel A color wheel includes a carrier having a carrier surface, a color filter plate unit mounted coaxially on the carrier surface and having at least one first through hole, a press cover for covering the color filter plate unit, and a fixing unit. The press cover has a... | 06/20/2006 |
