子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Multichannel receiver system for angularly resolved laser ranging measurement | US10334885 | 2002-12-30 | US06727984B2 | 2004-04-27 | Hubert Becht |
| The invention relates to a multichannel receiver system (1) for angularly resolved laser ranging measurement, in which a laser light pulse from a laser (7) using the pulse travel time method is used to measure the ranges of a plurality of target points (6) by means of an array (2) comprising a plurality of apertures (3), of a photodetector (9) and of an evaluation circuit (10). The laser light pulses entering each of the apertures (3) and reflected by the target points (6) are distributed in a preselected distribution ratio between at least two optical fibers (511 to 543) with an individual length which corresponds to a light travel time tn,m, and are subsequently received by the photodetector (9) and are processed in the evaluation circuit (10). A unique assignment of the pulses to the respective apertures (3) is rendered possible by their spacings, specified in accordance with the distribution, and amplitudes. The ranges of the target points (6) can thereby be determined. | ||||||
| 162 | VIDEO SEARCH AND RESCUE DEVICE | US09814167 | 2001-03-22 | US20030198364A1 | 2003-10-23 | Robert N. Yonover; Jonathan C. Gradie; Richard David Dikeman |
| A device for locating a lost target or for surveillance and monitoring of an area for a target having spectral and spatial profiles comprises a digital multi-spectral camera aimed at or scanning an area of interest, the camera generating spectral and spatial output; and a computer including a program for processing in real-time the output of the camera, triggering an alarm when the target is detected from the output. | ||||||
| 163 | Infrared sensing device and method | US679075 | 1996-07-12 | US5844240A | 1998-12-01 | Don-Hee Lee; Hak-Su Kim |
| An infrared sensing device includes a condensing lens for gathering an infrared ray from a human body, a guide unit for dividing a room to be monitored into a plurality of lateral and vertical zones and for guiding the infrared ray to a part of an infrared sensor unit corresponding to its direction, a housing for enclosing the condensing lens and guide unit to preclude dispersion of the incident infrared ray, an infrared sensor unit for sensing an infrared ray of a certain zone or infrared rays of a plurality of zones guided by the guide unit and housing, and a signal processing unit for amplifying an output signal of the infrared sensor unit, and for converting the applied signal into a digital signal and analyzing the digital signal. | ||||||
| 164 | White light optical transform device | US757054 | 1991-09-09 | US5191392A | 1993-03-02 | John L. Johnson |
| The White Light Optical Fourier Transform Device comprises symmetrical wedges of uniaxial birefringent crystal placed on either side of a half-wave plate to induce an angle between the wavefronts of the polarized components of the beam travelling through the device. The wavefront tilt angle of the output beam is shown to be linearly proportional to the angle of incidence. This is sufficient to generate the necessary phase factor for a Fourier transform of the incident intensity image. | ||||||
| 165 | Horizon sensor for satellites using superconductor(s) having a high critical temperature | US616791 | 1990-11-21 | US5142150A | 1992-08-25 | Nicola Sparvieri; Filippo Graziani |
| A horizon sensor for spaced-based satellites consisting of a high critical temperature superconductor which changes temperature based upon its exposure to space-based radiation. The horizon sensor may be flexibly positioned along the outer surface of the space- based satellite. As the orientation in space of the satellite varies, certain portions of the satellite body will be alternately exposed to radiation while other portions of the satellite body will be shadowed from it. As the sensor is exposed to radiation due to the change in orientation of the satellite body, the temperature of the superconductor changes due to radiation absorption. This change in temperature causes the conductivity of the superconductor within the sensor to vary, and this causes a change in voltage within the sensor. This voltage may be appropriately processed via land based or satellite based control systems to accurately measure and/or change the orientation of the satellite in space. | ||||||
| 166 | Radiation detector having a defined field of view having a baffle arrangement containing a diffusing element | US612388 | 1990-11-14 | US5113069A | 1992-05-12 | John C. Parker, deceased; by David Francis, executor; by James I. H. Smith, executor |
| A radiation detector, including, a photodiode, has improved uniformity of sensitivity over the field of view because the receiving surface is provided by an optical diffusing layer, and the field of view is defined by a baffle arrangement, each internal surface of whichy is reflective. The baffle arrangement also defines a volume and the diffusing layer conforms to a part of the volume adjacent to the apex thereof. The diffusing layer may be provided by material, initially in liquid form, solidified in situ within the baffle arrangement. The receiving surface may be provided within a receiving head of the detector, spaced from the photodiode. Radiation may be transmitted from the receiving surface, whether part of a separate receiving head or not, to the photodiode by an optical fibre. An assembly of four consituent detectors, each having three orthogonally arranged mirrors, may together define a hemispherically shaped volume. | ||||||
| 167 | Optical interference position measurement system | US349229 | 1989-05-09 | US5026162A | 1991-06-25 | Roger M. Langdon |
| A position measurement system transmits moving interference pattern and these are received by a sensor fixed relative to the transmitter and a mobile sensor, by comparing the phases of the interference pattern at the two sensors the position of the mobile sensor relative to the transmitter can be calculated. | ||||||
| 168 | Method and apparatus for measuring incident light angle relative to level | US317512 | 1989-03-01 | US4988193A | 1991-01-29 | Gary L. Cain; Mark D. Sobottke; Gerald H. Church; James T. Zalusky |
| Apparatus operable in accordance with the method of the present invention for measuring the angle of incidence of a light beam or plane relative to level comprises a photodetector array for sensing the light and a level mirror preferably comprising a pool of mercury. Optics are provided for transmitting the light to the photodetector array in alignment with the angle of incidence of the light (aligned light) and also after the light has been reflected from the mercury pool (reflected light). A shutter is provided for separating aligned light from reflected light such that distinct signals representative of the two are generated by the photodetector array. The distinct signals are processed by up-counting and down-counting a counter circuit to determine the average centers of light spots representative of the aligned light and the reflected light and the distance between those average centers which is representative of the deviation of the light beam or plane from level. | ||||||
| 169 | Steerable wide-angle imaging system | US146696 | 1988-01-21 | US4908705A | 1990-03-13 | Ralph Wight |
| An electro-optic system which is advantageous for low altitude, high speed aerial reconnaissance. A linear imager is movably positioned in the focal plane of a fixedly mounted wide-angle lens system. The fore-aft motion capability of the imager can be used to select an optimal viewing angle for recognition, for image motion compensation (to reduce smear), or for other functions. | ||||||
| 170 | Method and apparatus for radiometer star sensing | US811963 | 1985-12-20 | US4801202A | 1989-01-31 | Jack E. Wilcox |
| A method and apparatus for determining the orientation of the optical axis of radiometer instruments mounted on a satellite involves a star sensing technique. The technique makes use of a servo system to orient the scan mirror of the radiometer into the path of a sufficiently bright star such that motion of the satellite will cause the star's light to impinge on the scan mirror and then the visible light detectors of the radiometer. The light impinging on the detectors is converted to an electronic signal whereby, knowing the position of the star relative to appropriate earth coordinates and the time of transition of the star image through the detector array, the orientation of the optical axis of the instrument relative to earth coordinates can be accurately determined. | ||||||
| 171 | Laser radiation warning sensor utilizing polarization | US826240 | 1986-02-05 | US4682024A | 1987-07-21 | Thorsteinn Halldorsson; Ernst A. Seiffarth |
| A device for the recognition and directional detection of optical radiation, especially laser radiation, i.e., a so-called laser warning sensor. The laser warning sensor comprises several optical input systems to which a light guide path leading to a detector is assigned. In the individual light guide paths, polarizing devices for the linear polarization of the incident optical radiation are provided which determine for each light guide path at its end facing the detector, a specific direction of polarization which is different from the direction of polarization of the other light guide paths. The radiation leaving the ends of the light guide paths combined in a bundle is conducted to a detector designed as a polarimeter. From the direction of polarization determined in the polarimeter, the direction of the incident laser radiation is determined in an evaluation circuit. | ||||||
| 172 | Method and apparatus of determining an attitude of a satellite | US669428 | 1984-11-08 | US4680718A | 1987-07-14 | Toshiro Sasaki; Michitaka Kosaka; Satoshi Mohri; Katsumi Kawano; Shoji Miyamoto |
| There is an attitude control method and system for a satellite. This system comprises a star catalogue of the universe, a star sensor and means for calculating features on the surface of the star sensor from a signal detected by the star sensor. The calculated features are compared with a table of which the star catalogue was reconstituted so as to easily search the features, thereby determining the attitude of the satellite. | ||||||
| 173 | Thermocouple detector | US515822 | 1983-07-21 | US4513201A | 1985-04-23 | R. Aaron Falk |
| An apparatus for determining the direction of orientation of pulsed sources includes a detector having two rectangular arrays of thermocouple strips fixed to opposite surfaces of a substrate. Radiation from the source is restricted to be incident on only one of the rectangular arrays. The incident radiation is thermalized quickly by the first array, and a voltage differential between the two rectangular arrays is sensed. The orientation of the source with respect to the optical axis of the apparatus can be calculated from an identification of that portion of the array wherein local thermalization takes place. | ||||||
| 174 | Alignment stabilization prism | US326987 | 1981-12-03 | US4502783A | 1985-03-05 | Anthony S. Y. Lau; Ernest W. Gossett, Jr. |
| Apparatus (20) provides a stable optical reference in the presence of optical source jitter. It comprises a beamsplitter cube (21) having an input surface 22, an output surface 23, a totally reflecting surface (24), and a partially reflecting diagonal surface (26) with a corner cube 27 disposed on a surface (25) opposite to the input surface. An input beam (30) applied to the beamsplitter cube results in two output beams (33, 33'), coplanar with an output optical axis (31), if the input beam deviates at 32 from an input optical axis. The two output beams deviate equally but oppositely from the output axis. This provides signals from which a stable output optical axis may be determined. A polarization-sensitive embodiment is also disclosed which eliminates problems associated with the use of coherent light sources. | ||||||
| 175 | Angle of arrival meter | US349128 | 1982-02-16 | US4498768A | 1985-02-12 | Herbert B. Holl |
| Apparatus for instantaneously measuring the horizontal and vertical aspectngles of radiation received from a remote laser transmitter. A triangular corner reflector serves as the receiver of radiation and detectors are provided along the three edges of the reflector. From the number of detectors activated on each side of the reflector, the direction of radiation from UV to millimeter wave length is determined. | ||||||
| 176 | Path indicating apparatus of moving vehicle | US306591 | 1981-09-28 | US4488233A | 1984-12-11 | Toshihiro Tsumura |
| A path indicating apparatus for indicating a path so that a moving vehicle movable in the horizontal and vertical directions, such as an aircraft, may move along such a predetermined path. The predetermined path is defined as an intersecting line of two scanning planes which are formed by scanning signals having a narrow beam width in a horizontal plane and a vertical plane, respectively. The vehicle is provided with a plurality of detectors arranged in the horizontal and vertical directions for detecting the signals being scanned in the horizontal and vertical planes, respectively, so that the detectors arranged in the vertical and horizontal directions may detect deviation of the vehicle in the horizontal and vertical planes, respectively. The vehicle is responsive to the detected signals from the respective detectors to determine the moving direction to be taken by the vehicle so that the vehicle may move along the path and the vehicle is steered responsive to the determined direction outputs. | ||||||
| 177 | Apparatus for determining the angle of incident electromagnetic radiation | US81440 | 1979-10-03 | US4270048A | 1981-05-26 | Lotar Liebing |
| Apparatus for receiving electromagnetic radient energy is disclosed, inclng a radiation detection element, a movable optical element for directing the radiation toward the detection element, and a drive system for automatically adjusting the position of the optical element to cause the radiation to always be directed toward the detection element. The drive system includes a pivotally mounted permanent magnet connected with the optical element, a plurality of coils arranged circumferentially about the magnet, and radiation-responsive control circuit for selectively energizing the coils to produce a magnetic field that displaces the magnet and the optical element to maintain direction of the radiation upon the radiation detection element. | ||||||
| 178 | Holographic field lens detector | US373527 | 1973-06-29 | US4181435A | 1980-01-01 | Tommy L. Williamson; Harold W. Rose |
| A holographic field lens detector system having an objective lens for focusing incoming light from a distant illuminating source upon a holographic lens positioned at the back focal plane of the objective lens. The aperture of the objective lens is simultaneously imaged on four detectors positioned in back of the holographic lens and on the four sides of holographic lens. The output of opposite pairs of detectors are fed to sum and difference circuits with the output of the sum and difference circuits being supplied to divide circuits to provide X and Y position information for the illumination on the holographic lens. | ||||||
| 179 | Position determining system | US430422 | 1974-01-03 | US3936632A | 1976-02-03 | William C. Bradley; Allen H. Greenleaf; Roger K. Lee, Jr. |
| A system for precisely determining the position of a beam of incident radiation. In one embodiment in the disclosure the system is utilized in an orbiting, Ritchey-Chretien telescope to determine the precise position of the image of a guide star in the focal plane of the telescope. In that embodiment a first reticle plate, having concentric ring reticle lines, is located at the edge of the tangential focal surface of the telescope and outside of the focal area being used for observation. A second reticle plate, having radial reticle lines, is located adjacent to the first reticle plate at the edge of the sagittal focal surface of the telescope and outside of the focal area being used for observation. A relay lens system and an image dissector tube are positioned behind the reticle plates so that light refracted by the reticle plates is passed by the relay lens system to the image dissector tube. A guide star is imaged on the first and second reticle plates. Light in the star image which is imaged onto either an apex or a groove in the reticle plates is split into separate beams in dependence upon the exact position of the image relative to the apex or groove. The position of the guide star image is precisely located first in a coarse position mode and secondly in a fine position mode. In the coarse position mode the image dissector tube aperture is scanned to find the overall locations of the separate beams, and the deflection signals of the image dissector tube at those locations determine the particular apex or groove in each reticle plate upon which the star is imaged. In the fine position mode the amount of light in each of the separate beams formed by the reticle plates is measured by the image dissector tube in a photon counting mode. This determines the exact position of the star image relative to the particular apex or groove in each reticle plate upon which the star image is incident. | ||||||
| 180 | Target locating circuit using a lateral photoelectric diode | US48625074 | 1974-07-05 | US3904871A | 1975-09-09 | DUEKER JAMES E; GLAENZER RICHARD H |
| The invention disclosed in the application refers to a method of signal processing and circuitry coupled to a lateral photoelectric diode to accurately determine the position of a target from the output of the lateral photoelectric diode using a unique characteristic of the diode. The approach utilizes the innate transmission delay line property of the lateral photoelectric diode.
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