Bizarre Patents
A method to tenderize meat with an explosive shockwave.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7055988 | Submersible lighting fixture with color wheel An underwater lighting fixture adapted for installation in a wall of a swimming pool. The fixture includes a housing having an interior cavity and a transparent cover. A plate is mounted within the housing defines an opening. The plate has a first side facing the tr... | 06/06/2006 |
| 7038399 | Methods and apparatus for providing power to lighting devices Methods and apparatus for providing power to devices via an A.C. power source, and for facilitating the use of LED-based light sources on A.C. power circuits that provide signals other than standard line voltages. In one example, LED-based light sources may be coupl... | 05/02/2006 |
| 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 |
| 6644815 | Total reflection prism and projector with the same A projection system is provided that utilizes a prism which guides color components from a light source to a display without the use of reflection, and that reflects image encoded light from the display toward a projection lens, thereby minimizing loss of... | 11/11/2003 |
| 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 |
| 6515811 | Optical filter having two absorption maximums An optical filter comprises a transparent support and at least one filter layer. The optical filter has an absorption maximum in the wavelength region of 560 to 620 nm. The optical filter also has another absorption maximum in the wavelength region of 700... | 02/04/2003 |
| 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 |
| 6252730 | Mirror mounting assembly for hair grooming and styling An improved mirror mounting assembly is designed for use with an existing mirror for hair grooming and styling. The mirror assembly contains a mirror panel which is adjustable relative to an existing mirror for proper viewing. Once adjusted, the mirror an... | 06/26/2001 |
| 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 |
| 6014274 | Partially ablating laser resistant structures A multi-layer structure for controlling the transmission of laser radiation including outer and intermediate layers absorbent to incident laser radiation. The outer and intermediate layers ablate under the influence of the incident laser radiation to achi... | 01/11/2000 |
| 5790329 | Color changing device for illumination purposes A color changing device provides a continuously variable light color by means of the introduction of dichroic color filters into the light path of an illumination device. In the subtractive color mixing method for mixing of colors in an illumination appar... | 08/04/1998 |
| 5617250 | Radiation projection arrangement with integrated radiation indicator An arrangement is produced for protection against harmful effects of radiation and for indicating such radiation which can preferably be designed as a viewing window or as goggles and can be used for protecting the eyes from injury due to high-intensity e... | 04/01/1997 |
| 5587847 | Laser protection window using holographic optical element and channel plates The present invention is a laser protection window for protection from uncontrolled laser illumination. This laser protection window includes a holographic optical element forming a reflection hologram at the wavelength of the expected laser threat. A set... | 12/24/1996 |
| 5570240 | Transflective colour filter, and a method of manufacturing such a filter A transflective optical filter comprises a single transparent or transluscent substrate; a colored slice made up of a plurality of layers, each corresponding to one color out of at least two colors; a light diffusing layer; and an opaque mask on which the... | 10/29/1996 |
| 5541779 | Optical imaging system An optical imaging system having a simple optical shading filter for reducing various aberrations is disclosed. The optical imaging system includes one or more lenses, a stop installed between the lenses, and an optical shading filter for reducing the ext... | 07/30/1996 |
| 5510928 | Multiple pass optical filter A method and apparatus are provided for filtering incident radiation to protect imaging sensors from the damaging effects of high intensity radiation. The apparatus comprises a filter and a plurality of mirrors disposed within a cube. The filter is positi... | 04/23/1996 |
| 5457578 | Color filter transmission apparatus A color filter moving apparatus for moving a color filter comprising a base and a filter frame. The base is provided with (1) a side flange integrally formed on a lateral side of the base; (2) a motor mounted on a lateral wall of the side flange, the moto... | 10/10/1995 |
| 5246803 | Patterned dichroic filters for solid state electronic image sensors Forming a color filter by vacuum depositing alternating layers of SiO2 and TiO2 at a temperature of less than 150° C.... | 09/21/1993 |
| 5018833 | Neutral density filters A neutral density filter is made by providing a substrate including a volume absorber having a first density and having an uneven first attenuation characteristic, and providing for a substantially constant attenuation of light by depositing on a backside... | 05/28/1991 |
| 4752122 | Apodizing filter and its applications An apodizing filter is disclosed comprising two solid bodies of transparent material the first of which is struck by the incident light while the second receives the light from the first. The second body has a curve surface approaching the first body at a... | 06/21/1988 |
| 4669811 | Optical filtering apparatus A well defined passband for an optical reflection filter is achieved by causing light to be reflected at least twice from a holographic wavelength selective reflector. Preferably the wavelength/reflectivity characteristics differ at the two reflections to... | 06/02/1987 |
| 4617094 | Method of manufacturing solid state color filter device uses co-electrodeposition Disclosed is a method of making a color filter for a solid state imaging device involving forming plural, spaced apart transparent electroconductive layers, insulated from one another, on a substrate and a layer of light absorbing material in the spaces b... | 10/14/1986 |
| 4508448 | Apparatus for measuring the distance to a point on the inner wall of a hot furnace Apparatus is disclosed for measuring the distance to a point on the inner wall of a hot furnace.... | 04/02/1985 |
| 4501470 | Christiansen-Bragg optical filter Disclosed is an optical bandpass filter for transmitting light in a narrow band around the wavelength λc, including a first series of layers, each of thickness t, having a refractive index n1 and a second series of layers, each of t... | 02/26/1985 |
| 4459014 | Subtractive filter for the printing of color photographic film A subtractive filter having three elementary filters, each comprising a fixed cylindrical central portion having at its center a channel for the passage of the light and on its surface a radial milled slot; a rotary ring concentric to the said fixed cylin... | 07/10/1984 |
| 4247177 | 3D Multichrome filters for spectacle frames This invention relates to a system for photographing, presenting and viewing 3D images, in which a set of mutually extinguishing multichrome "C" and "D" filters in spectacles is utilized to cover a first eye with a "C" blue filter and a second eye with a ... | 01/27/1981 |
| 4227802 | Apparatus for measuring the distance to a point on the inner wall of a hot furnace Apparatus is disclosed for measuring the distance to a point on the inner wall of a hot furnace.... | 10/14/1980 |
| 4099883 | Sulfur detecting apparatus comprising holmium, and erbium filters An improvement in sulfur detecting apparatus is described wherein a filter system provides a signal path for light passing to detecting means, which signal path contains holmium and erbium, in quantities selected so that the optical transmission in the si... | 07/11/1978 |
| 3982825 | Color filter head for photographic enlargers A color filter head for attachment to photographic enlargers has a universal mount adapted for ready attachment to lens mounts regardless of size and a unique system for sequential color addition and integration to produce a color corrected print. The fil... | 09/28/1976 |
