Quotables
"Man will not fly for 50 years."
Wilbur Wright ; 1901
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 |
| 8004665 | Energy measurement system and method Disclosed is a system to measure the energy level of a radiation pulse. The system includes a sample-and-hold module to measure the radiation pulse and to generate a signal representative of an energy level of the radiation pulse, and a processing module to determin... | 08/23/2011 |
| 7924417 | Luminance measuring apparatus An exemplary measuring apparatus includes a base, a table, a light blocking piece, a sensor, a luminance meter, a drive assembly, and a controller. The table defines a first elongated slot. A light guide plate is arranged on the table with a central portion of a bot... | 04/12/2011 |
| 7684029 | Method and apparatus for identifying a sensed light environment In one embodiment, a sensed dataset includes data produced by a plurality of light sensors that have been exposed to a light environment. The data of the sensed dataset corresponds to different ranges of light, and at least a portion of one of the ranges of light is... | 03/23/2010 |
| 7425695 | Light tester for vehicles, preferably for motor vehicles, with ray selection unit consisting of perforated plates spaced at different spacings from one another The measurement head is equipped with the ray selection unit, which is entered by the rays emitted by the light unit under test. These rays enter the passages and are detected by the ray detection unit when they exit the ray selection unit. Said ray detection unit p... | 09/16/2008 |
| 7345669 | Photometric device of liquid crystal display and liquid crystal display A photometric device of liquid crystal display and a liquid crystal display in which photometry can be performed without relying upon manpower and the liquid crystal plane is shielded only at the time of photometry. The photometric device comprises a liquid crystal ... | 03/18/2008 |
| 7335868 | Exposure control system and method for an image sensor An exposure control system and method for an image sensor, which includes an image sensor, an illuminator, a controller and a light separator. The image sensor has plural photosensitive pixels in a two-dimensional matrix arrangement. When an exposure is operated in ... | 02/26/2008 |
| 7332704 | Photosensitive button structure A photosensitive button structure includes a button body and a photosensitive layer. The photosensitive layer is disposed on a bottom side of the button body, and has a plurality of words and pictures formed thereon. Whereby, the photosensitive layer produces a firs... | 02/19/2008 |
| 7317520 | Method and apparatus for measuring brightness An apparatus for measuring brightness transmitted by a light-emitting display unit of a laser telescope and observed by the user's eyes comprises a focusing unit (11), a sensor unit (12), a processing unit (13) and a display unit (14). A ... | 01/08/2008 |
| 7267546 | Light meter for detecting and measuring intensity of two or more wavelengths of light A light meter for detecting two or more different wavelengths of light and methods for determining whether a light source configured to emit light at two or more dominant wavelengths is working properly. The inventive light meter includes a housing, two or more rece... | 09/11/2007 |
| 7253898 | System for detecting droplets on a translucent surface A system which detects droplets on a translucent surface having a camera which, upon activation, acquires an image of a portion of the surface. A radiation source, upon activation, illuminates the portion of the translucent surface while a control circuit selectivel... | 08/07/2007 |
| 7232987 | Instrument and method to measure available light energy for photosynthesis The present invention is an accumulated light meter that generates data concerning the quantity of photosynthetically active radiation available over a measured period of time. The device can calculate a daily light integral (DLI) that corresponds to the amount of l... | 06/19/2007 |
| 7151247 | Mobile measurement system of photoenvironment This invention relates to a mobile measurement system of photoenvironment comprises a measuring equipment 5 to measure photoenvironment and a barrow 4 for moving measurement which the equipment 5 is mounted. The measuring equipment 5 has ... | 12/19/2006 |
| 7075636 | Apparatus and methods for evaluating performance of endoscopy devices and systems A test and measurement system to assess performance characteristics of an endoscope or other optically based diagnostic or treatment devices. The performance characteristics can include the photometric characteristics, the imaging characteristics and the physical ch... | 07/11/2006 |
| 6992757 | Method and system for encoding fluid level A level transmitter can generate a level measurement signal according to the position of a float that follows fluid level in a tank. The transmitter can comprise an optical encoder with a patterned disk that is linked to the float so that fluid level change produces... | 01/31/2006 |
| 6757627 | Photo-detecting apparatus An electric signal current corresponding to the intensity of the incident light is output by a photodiode PD, electric charge is integrated in an integrating circuit 10 according to this electric signal current, and a signal voltage corresponding to this quan... | 06/29/2004 |
| 6597007 | Optical position detection device and distance measurement device A signal current I1 that is output from output terminal of semiconductor position detection element is converted to a signal voltage V1 by a current/voltage conversion unit and a signal current I2 that is output from output terminal is converted to a sign... | 07/22/2003 |
| 6304586 | Method and apparatus for modulating a tunable laser The present invention provides an optical signal generator for use in calibrating and testing optical components. The optical signal generator utilizes a tunable laser in conjunction with a novel modulation circuit to output an analog/digital optical sign... | 10/16/2001 |
| 5991014 | Light sensing device for sensing the light output of a bulb A light sensing device for sensing the light output of a bulb in a lamp comprises a fiber-optic light guide having first and second ends and a photodetector. The first end is optically coupled to a projection of a bulb in the lamp and is adapted to pick u... | 11/23/1999 |
| 5705807 | Photo detecting apparatus for detecting reflected light from an object and excluding an external light componet from the reflected light There is provided a photosensor having a photoelectric converter for converting incident light into a photoelectric current, and a function of removing noise light from imaging light including noise light and reflected from an object to be photographed. A... | 01/06/1998 |
| 5570178 | Scanning imaging system having reduced detected signal aliasing in cross scan direction A system for receiving electromagnetic energy with reduced signal aliasing in the cross-scan direction. The system is adapted to be mounted on a spacecraft or an aircraft for movement over a surface in the cross-scan direction and has a sensor for receivi... | 10/29/1996 |
| 5548398 | Illuminant discriminator providing detection of high efficiency illumination An illuminant discriminator distinguishes a range of separate illuminants, including high efficiency fluorescent lighting, by modifying the frequency response of a signal output from a photodetector. A switchable high pass filter coupled to the photodetec... | 08/20/1996 |
| 5530432 | Photo monitoring apparatus with visual/audio alarm A photo monitoring apparatus including a photoresistor, a series of shunt resistors, and a comparator IC, wherein the comparator IC provides an output signal to a LED and a diaphragm speaker, when the voltage from the shunt resistors drops below a pre-set... | 06/25/1996 |
| 5521852 | Method and system for designing lighting installations A method and system for designing a lighting installation. The system includes a processor for executing the method, which includes generating lighting area input data signals based on selected parameters associated with a lighting area, and generating lu... | 05/28/1996 |
| 5486914 | LCD bargraph motion picture light meter In a handheld incident light meter instrument, a custom LCD panel provides both a digital readout and a bar graph array which simulates an analog meter but uses no moving mechanical parts and which may be operated in a choice of modes: bar, floating zone ... | 01/23/1996 |
| 5422717 | Method and apparatus for analyzing a lighting environment In a method of analyzing a lighting environment, the lighting environment is initially divided into a plurality of blocks so that all surfaces defining said lighting environment may be divided into a plurality of surface patches. The surface patch that ra... | 06/06/1995 |
| 5400115 | Printer having a measuring unit adjustable to the spectral sensitivity of a copy material A printer has a light source and an objective which direct a light beam along a predetermined path, and a unit in the path for measuring the density of a master to be reproduced. The measuring unit includes a filter combination of at least two filters dow... | 03/21/1995 |
| 5345305 | Aquarium light meter This invention relates to an aquarium light meter including a light sensing device, a pivotal assembly connecting the light sensing device to a pair of telescopic tubes, a controller, and a signal wire connected to the light sensing device and passing thr... | 09/06/1994 |
| 5323226 | Method of measuring light levels and device for implementing this method A method of measuring light levels, particularly the measurement of exterior light levels in the zone of approach to a tunnel in which vehicles are moving, and from which exterior light levels the minimum light level to be programed inside the tunnel can ... | 06/21/1994 |
| 5141312 | Fiber optic photoluminescence sensor A photoluminescence sensor for detecting a photoluminescent light from a toluminescent material is disclosed. In a preferred embodiment the photoluminescence sensor comprises: a source of light; a concave mirror having at least one perforation for passin... | 08/25/1992 |
| 4980278 | Method of effecting immunological analysis and apparatus for carrying out the same A method for analyzing antigen or antibody contained in a sample by introducing a first end surface of at least one measuring light guide member and a second end surface of at least one reference light guide member in the sample. Each of said measuring an... | 12/25/1990 |
| 4969005 | Backlighting detecting device A device for detecting a backlighting condition comprising a light meter of which the image receiving surface is divided into a central area, an intermediate area and a marginal area, and a circuit for discriminating between true and false backlighting co... | 11/06/1990 |
| 4915500 | Multichannel optical sensing device A multichannel optical sensing device is disclosed, for measuring the outr sky luminance or illuminance or the luminance or illuminance distribution in a room, comprising a plurality of light receptors, an optical shutter matrix including a plurality of ... | 04/10/1990 |
| 4862206 | Exposure control system A contralight compensation exposure control system which determines as a contralight condition and fires a strobe when there is a difference between the output of a partial light measuring means for measuring the brightness of a portion of a scene to be p... | 08/29/1989 |
| 4807166 | Method and apparatus for calibrating an electro-optical mouse A method and apparatus for calibrating an electro-optical mouse during the detection of light reflected from a surface with optically contrasting indicia. The voltage output from the light detector is compared with stepped ramped sequences of reference vo... | 02/21/1989 |
| 4804849 | Method and apparatus for determining concentrations of chlorophyll and the rate of primary production in water Apparatus is provided for optically measuring scalar irradiance or incident flux of radiant energy and for optically measuring naturally occurring chlorophyll fluorescence or upwelling radiance in a parcel of water in a natural setting. From a comparison ... | 02/14/1989 |
| 4664495 | Rear light detecting device for camera A rear light condition detecting device for a camera is arranged to measure distances to a plurality of parts appearing within a taking picture plane on the assumption that an object located nearby is the main object to be photographed or that a light sou... | 05/12/1987 |
| 4660091 | Exposure level correction for film-to-video conversion The average video level of a video camera is corrected for film-to-video conversion by having a film aperture plate with a light-passing opening that is slightly enlarged with respect to the image area of the film. Non-image light passes through a periphe... | 04/21/1987 |
| 4445778 | Method of and apparatus for measuring scene brightness In a camera or a printer, exposure is controlled based on a selected mode of a light measuring system which has two modes of weighting the light measurement in for differently weighting various parts of an image of a scene according to whether the image i... | 05/01/1984 |
| 4373810 | Automated exposure-contrast control index meter An apparatus and method for determining a film development parameter and a camera exposure setting to compensate for the luminous dynamic range of a subject being photographed which takes film non-linearities into account. Film characteristic curve data i... | 02/15/1983 |
| 4320969 | Method and assembly for measuring equivalent sphere illumination in the field The present invention relates to systems for assessing the quality of illumination provided by a lighting environment to a task location in terms of the ability of that illumination to render the contrast of a visual task at the task location. Past system... | 03/23/1982 |
