Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 8178853 | Filters for use in dosimetry Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters. ... | 05/15/2012 |
| 8115182 | Personal and area self-indicating radiation alert dosimeter Described is a self-indicating instant radiation dosimeter (1001) for monitoring high energy radiations, such as X-ray. The dosimeter contains a radiation sensitive, color changing, indicating composition (10), e.g., a diacetylene (R—C≡C—C≡C—... | 02/14/2012 |
| 7327415 | Microvoided light diffuser The invention relates to a light diffuser comprising a thermoplastic layer containing thermoplastic polymeric material and microvoids having a substantially circular cross-section in a plane perpendicular to the direction of light travel and having a diffuse light t... | 02/05/2008 |
| 7227158 | Stick-on self-indicating instant radiation dosimeter A dual dosimeter system with (1) a stick-on, self-indicating, instant radiation dosimeter applied onto (2) a conventional radiation dosimeter and/or detector for monitoring high energy radiations, such as X-ray, electrons and neutrons. Radiation dosimeters, such as ... | 06/05/2007 |
| 7209042 | RFID tag with visual environmental condition monitor A combination RFID tag intended to be associated with a host product, for example by being secured to the outside of a package containing a perishable product, e.g. foodstuffs or vaccines, which RFID tag is provided with a visually readable environmental condition e... | 04/24/2007 |
| 7122812 | Leak detection lamp A light source for examining sites in heating, ventilating, and air conditioning systems for leaks using a fluorescent dye is described. The light source can include a low voltage lamp or a low heat generating lamp. ... | 10/17/2006 |
| 7029819 | Phosphor screen and imaging assembly A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support that has a reflective substrate comprising a continuous polyester firs... | 04/18/2006 |
| 6846606 | Phosphor screen and imaging assembly with poly(lactic acid) support A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support that has a reflective substrate comprising a continuous poly(lactic ac... | 01/25/2005 |
| 6828077 | Mammography imaging method using high peak voltage A method of mammography imaging includes exposing a patient to a peak voltage greater than 29 kVp. The film used in this method comprises a cubic grain silver halide emulsion layer on one side of the support and a tabular grain silver halide emulsion layer on the ot... | 12/07/2004 |
| 6806478 | Authentication system and methodology The present invention provides an authentication system and methodology in which an authenticating agent is used as a product marker to help determine the source of products. The authenticating agent includes a substance that forms free radicals upon irradiation. Th... | 10/19/2004 |
| 6794106 | Radiographic imaging assembly for mammography A radiographic imaging assembly comprises a radiographic silver halide film having a film speed of at least 100 and a single fluorescent intensifying screen that has a screen speed of at least 200. This imaging assembly is particularly useful for mammography or imag... | 09/21/2004 |
| 6744055 | Miniature personal and area radon and thoron monitor A Rn222 (radon) and Rn220 (thoron) radiation monitor that uses alpha-track detection film in multiple, separate chambers to detect radiation, wherein different diffusion barriers are used in each of the chambers to allow for signal differentiation between the chambe... | 06/01/2004 |
| 6734440 | Sunlight dosage indicator A multilayer sunlight dosage indicator comprising (a) an indicator layer comprising a sunlight-sensitive ink, wherein the ink undergoes a color change upon exposure to a known amount of sunlight; and (b) an overlayer comprising an amount of at least one UV absorber.... | 05/11/2004 |
| 6582657 | Dosimeter and method for using the same A very sensitive dosimeter that detects ionizing radiation is described. The dosimeter includes a breakable sealed container. A solution of a reducing agent is inside the container. The dosimeter has an air-tight dosimeter body with a transparent portion ... | 06/24/2003 |
| 6437346 | Solar blind-UVC photochromic detector and method for calibration The present invention relates to an ultraviolet radiation detector in general and more specifically to a solar blind ultraviolet radiation detector; that is, a detector insensitive to the radiation of sunlight reaching the earth's surface but sensitive to... | 08/20/2002 |
| 6410996 | Radioshielded assembly A radioshielded assembly contains components that require a d.c. supply and a multi-pole terminal arrangement connected between power supply terminals of the components and an external d.c. supply. At least one pole of the multi-pole terminal arrangement ... | 06/25/2002 |
| 6406914 | Radiation exposure dose-history indicator The present composition for use in radiation exposure dose-history indicators comprises a radioactive ray-absorber and/or a radioactive ray-excited fluorescence-emitting agent, a color-developing and electron-donating organic compound and an active specie... | 06/18/2002 |
| 6373058 | Method of reducing infrared viewability of objects A method of camouflaging an object emitting infrared radiation by absorbing radiation or by altering its emissive pattern reduces its viewability by an infrared detector. An infrared radiation absorbing and/or altering layer containing microcapsules (10) ... | 04/16/2002 |
| 6294792 | UV dosimeter The subject of the invention is a UV dosimeter suitable for visual evaluation, which is consisted of a light-sensitive layer on a carrier and a cover layer. The thickness of the light-sensitive layer is 10-40 μm, the concentration is 95-105 g/dm3 | 09/25/2001 |
| 6132681 | Disposable dosimeter for sun radiation A disposable dosimeter for sun radiation comprising a matrix with at least one active chemical compound distributed therein, capable of changing its original color to a new color due to a chemical reaction induced by exposure to UV radiation, said matrix ... | 10/17/2000 |
| 6127685 | Dosimeter device including body locator indicia Disclosed is a dosimeter badge that includes body locator indicia consisting of an icon representing a portion of a human body and indicia, such as a dot, associated therewith to indicate where, on the body, the badge should be worn. This information as t... | 10/03/2000 |
| 6015621 | Ultraviolet dosimeter film An ultraviolet-sensitive dosimeter material comprises at least one diazonium compound featuring absorption in the ultraviolet wavelength range, and a binder. The diazonium compound is preferably formed by a diazonium salt of the general formula ##STR... | 01/18/2000 |
| 5846684 | Device for converting invisible and visible radiation to visible light and/or UV radiation An amorphous upconversion phosphor comprising barium fluoride a combination of rare-earth fluorides including yttrium and lanthanum and dopants, and a waveguide thereof on a substrate selected to have a refractive index lower than a thin film of the phosp... | 12/08/1998 |
| 5787144 | Sterilization process for medical devices A radiation sterilization process for medical devices. The position of a CO60 source is monitored during a sterilization process. If the CO60 source moves out of the irradiation position, the central control unit moves the source dow... | 07/28/1998 |
| 5747225 | Light sensitive device The invention relates to a light sensing device comprising a spironaphthoxazine dispersed in a layer of gelatin on a base material.... | 05/05/1998 |
| 5731589 | Ultraviolet radiation dosimeter The invention relates to a radiation dosimeter comprising a sensor arranged in a dosimeter casing and including at least one measuring field and a calibrating zone (64). To provide a dosimeter which can be readily manufactured and comprises a wide measuri... | 03/24/1998 |
| 5698343 | Laser wavelength detection and energy dosimetry badge A new personal laser dosimetry badge records intentional or unintentional exposure to laser radiation. A Fresnel biprism is mounted over a layer of photopolymerizable material, preferably a polymer-dispersed liquid crystal material. A laser beam striking ... | 12/16/1997 |
| 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 |
| 5572027 | Integrated dosimeter for simultaneous passive and active dosimetry A radiation monitoring system and method characterized by the use of paired active and passive radiation detectors to monitor exposure to a radiation field. The active detector provides an output representative of radiation exposure on a real time basis w... | 11/05/1996 |
| 5436115 | Systems for the visualization of exposure to ultraviolet radiation Photochemical systems for the direct visualization of exposure to ultraviolet radiation that effect visible color changes involving a process in which a photoacid is formed upon irradiation of a nitro-substituted aromatic aldehyde with ultraviolet light a... | 07/25/1995 |
| 5411835 | Dry photochromatic film The photochromatic indicator is a dry film comprised of microencapsulated chemistry which reacts to the degradation of the dry film components when irradiated by UVA and UVB in the frequency spectral range of 290 nm (low end of the UVB spectrum) to 365 nm... | 05/02/1995 |
| 5376801 | Radiation film and energy subtraction processing method using the same A radiation film comprises a substrate and emulsion layers overlaid on opposite surfaces of the substrate. The radiation film is sandwiched between two radiation intensifying screens having different radiation energy absorption characteristics. Each of th... | 12/27/1994 |
| 5296275 | Phototranschromic ink A phototranschromic ink suitable for use in a printing machine, including a water soluble, inert, nonionic polymeric resin carrier base having film forming properties, a photo acid or photo base progenitor which releases or takes up protons upon exposure ... | 03/22/1994 |
| 5280333 | Apparatus and a method for testing documents In an apparatus for testing documents, the optical illuminating unit comprises at least one light guide provided with fluorescent substance for directing at least two light fractions of different wavelengths onto a common area of the document. The light f... | 01/18/1994 |
| 5206118 | Acid-sensitive leuco dye polymeric films A color-change dosimeter film made of a halogen-containing polymer in which is dispersed an acid-sensitive leuco dye, which dye a) is substantially free from groups that are sensitive to high-energy radiation and b) becomes colored in acid. This color-cha... | 04/27/1993 |
| 5083031 | Radiation dosimeters Radiation dosimeters and dosimeter badges. The dosimeter badges include first and second parts which are connected to join using a securement to produce a sealed area in which at least one dosimeter is held and protected. The badge parts are separated to ... | 01/21/1992 |
| 5065031 | Personnel TL dosimetry method and apparatus for determination of risk related quantity A personnel dosimetry method and system wherein the identity of a radiation field mixture is determined by using the correlation between two ratios of the responses of two pairs of three TL elements that are filtered to respond differently to the mixed ra... | 11/12/1991 |
| 5049754 | Radiation dosimeter disassembly, assembly and reading apparatuses and methods Disclosed is a radiation dosimeter reading apparatus designed to disassemble, reposition, read, and reasemble radiation dosimeter badges. The dosimeter reading apparatus includes a dosimeter badge chuck assembly which engages a dosimeter badge in an infee... | 09/17/1991 |
| 5039866 | Nuclear track detector method for radon monitoring in buildings through the 210 polonium measurement on glass An in-situ method for monitoring of retrospective long-term radon exposures in dwellings is disclosed. Typically one nuclear track detector is placed on a glass surface to measure the alpha track density due to the glass alpha activity background plus the... | 08/13/1991 |
| 5028792 | System for the visualization of exposure to ultraviolet radiation Photochemical systems for the direct visualization of exposure to ultraviolet radiation that effect visible color changes involving a process in which a photoacid is formed upon irradiation of a nitro-substituted aromatic aldehyde with ultraviolet light a... | 07/02/1991 |
