| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 356140000 | Apex of angle at observing or detecting station | 10 |
| 20120188535 | LASER REFERENCE SYSTEM - A method of operating a laser reference system orients a reference plane of laser light generated by a transmitter so compensation is made for rake angles between the first and second axes of the transmitter and first and second non-orthogonal alignment axes. The transmitter includes an optical system arranged to generate a laser beam, the optical system projecting said laser beam radially along a rotational arc defined about a central rotational axis, thereby substantially defining a reference plane of laser light, and a positioning arrangement, coupled to said optical system, for adjusting the angular orientation of the optical system with respect to a first transmitter axis and with respect to a second transmitter axis. Detectors are arranged to detect reception of the laser beam. The detectors and the transmitter define the alignment directions. The detector further includes a transmitter for transmitting information regarding the location of the laser beam, as detected by the detectors. The system further includes a processor adapted to receive transmitted information from the detector regarding the location of the laser beam. The processor calculates the rake angles. | 07-26-2012 |
| 356141100 | With photodetection of reflected beam angle with respect to a unidirectional source beam | 2 |
| 20080266553 | Optical Angle Detection - Apparatus and methods for detecting angle of incidence of an optical beam. The apparatus employs two optical detectors, the first of which has placed in front of it a coating or layer which exhibits an angle-dependent optical transmission characteristic distinct from that of the light path in front of the second detector. The difference in a characteristic of the light received at the respective detectors therefore provides an indication of the angle of incidence of the light beam. The angle detector may be used particularly, though not exclusively, in conjunction with free space optical communications systems. | 10-30-2008 |
| 20110292380 | CMOS three-dimensional image sensor detectors having reduced inter-gate capacitance, and enhanced modulation contrast - A CMOS detector with pairs of interdigitated elongated finger-like collection gates includes p+ implanted regions that create charge barrier regions that can intentionally be overcome. These regions steer charge to a desired collection gate pair for collection. The p+ implanted regions may be formed before and/or after formation of the collection gates. These regions form charge barrier regions when an associated collection gate is biased low. The barriers are overcome when an associated collection gate is high. These barrier regions steer substantially all charge to collection gates that are biased high, enhancing modulation contrast. Advantageously, the resultant structure has reduced power requirements in that inter-gate capacitance is reduced in that inter-gate spacing can be increased over prior art gate spacing and lower swing voltages may be used. Also higher modulation contrast is achieved in that the charge collection area of the low gate(s) is significantly reduced. | 12-01-2011 |
| 356141200 | With photodetection | 4 |
| 20080297778 | OPTICAL AXIS ADJUSTING DEVICE AND OPTICAL AXIS ADJUSTING METHOD USING THE SAME - An optical axis adjusting device for adjusting an optical axis in an optical head device may include a rotatable part which is turnably mounted on a main base so that the optical head device is capable of being turned with an axis X which is set to be at a spot position of one of the return light beams of the two laser beams. The optical axis adjusting device may include a correcting means for converting an optical axis shift on the light receiving face when the other laser beam is emitted to a non-corresponding optical medium, into an optical axis shift on the light receiving face when the other laser beam is emitted to the other corresponding optical medium. | 12-04-2008 |
| 20100283998 | LIGHT SENSOR WITH INTENSITY AND DIRECTION DETECTION - A light sensor and light sensing system to detect an intensity of incident light and an angle of incidence of the incident light. The light sensor includes a dielectric layer, a plurality of photo detectors coupled relative to the dielectric layer, and a plurality of stacks of opaque slats embedded within the dielectric layer. The dielectric layer is substantially transparent to the incident light. The photo detectors detect the incident light through the dielectric layer. The stacks of opaque slats are approximately parallel to an interface between the dielectric layer and the photo detectors. The stacks of opaque slats define light apertures between adjacent stacks of opaque slats. At least some of the stacks of opaque slats are arranged at a non-zero angle relative to other stacks of the opaque slats. | 11-11-2010 |
| 356141400 | With optical scanning of light beam or detector | 1 |
| 20140307252 | SURVEYING DEVICE - Some embodiments of the invention may relate to an optical surveying device having a base for setting up the surveying device and a targeting unit, which is rotatable in relation to the base about two axes, and which defines a target axis or targeting a target object to be surveyed. In some embodiments, the targeting unit has a first beam path for emitting optical radiation in the direction of the target object to be surveyed and a second beam path for receiving a component of the optical radiation, which is reflected from the target object, by way of an optoelectronic receiving element. In some embodiments, at least one of the beam paths, has an optical element, which is implemented having an optically transparent, deformable volume body, and which has at least one interface toward a medium having an optical index of refraction deviating from the volume body. | 10-16-2014 |
| 356141500 | With at least 2-dimensional sensitivity | 1 |
| 20080278715 | SCANNING LADAR WITH ADJUSTABLE OPERATIONAL PARAMETERS - A LADAR has adjustable operational parameters to accommodate surveillance of a particular site. The LADAR includes a controller, a laser source governed by the controller to generate a laser beam pulsed at a pulse repetition rate, an optical scanner, a first set of optics, a first drive assembly governed by the controller, a second drive assembly governed by the controller, a light detector, a second set of optics for guiding laser echo pulses, and a processor coupled to the light detector to accommodate surveillance of the particular site. | 11-13-2008 |
| 356148000 | Artificial reference | 3 |
| 356149000 | Gyroscope or pendulum stabilized optical element | 3 |
| 20080304052 | Plasma shunting apparatus and method for ring laser gyroscope - A ring laser gyroscope includes a first plasma shunt arranged to prevent the plasma from contacting a first mirror in the gain region and a second plasma shunt arranged to prevent the plasma from contacting a second mirror in the gain region. The first and second plasma shunts may comprise electrical conductors located in the respective mirror wells and arranged such that contact between the plasma and the electrical conductors quenches the plasma in the mirror wells and produces electrical currents that travels across the mirror wells. The electrical conductors may be formed as metallized strips arranged to extend across the mirror wells, or they may be formed from metal wires. The plasma shunts may alternatively comprise diversion passages formed in the frame and arranged such that the plasma fills the diversion passages and bypasses the mirrors. | 12-11-2008 |
| 20120300198 | FREQUENCY STABILIZED LASER SYSTEM - A laser stabilization system includes laser source having first and second ends; first waveguide portion having first and second ends, first end of first waveguide portion coupled to first end of laser source; second waveguide portion having first and second ends, first end of second waveguide portion coupled to second end of laser source; micro-cavity coupled between second end of first waveguide portion and second end of second waveguide portion, micro-cavity having resonant frequency; and electronic locking loop coupled between micro-cavity and laser source, wherein electronic locking loop electronically locks laser source to resonant frequency of micro-cavity; wherein first waveguide portion is optical locking loop coupled between micro-cavity and laser source, wherein optical locking loop optically locks laser source to resonant frequency of micro-cavity; micro-cavity stabilization loop coupled with micro-cavity, wherein micro-cavity stabilization loop stabilizes resonant frequency of micro-cavity to reference frequency; and output for outputting light from system. | 11-29-2012 |
| 20130016342 | Fiber optical gyroscopeAANM Parks; Allen D.AACI SpotsylvaniaAAST VAAACO USAAGP Parks; Allen D. Spotsylvania VA USAANM Spence; Scott E.AACI FredericksburgAAST VAAACO USAAGP Spence; Scott E. Fredericksburg VA US - An optical gyroscope is provided for measuring a small angular difference. The gyroscope includes a laser, a pre-selection polarizer, a first beam splitter, a coil of optical fiber, a second beam splitter, a post-selection polarizer, a spectrometer and an analyzer. The laser emits a pulse beam of coherent photons. The beam has pulse duration σ. The pre-selection polarizer pre-selects the photons, and the first beam splitter separates the photons by their horizontal |− | 01-17-2013 |
