-
81.发明授权
公开(公告)号：US3808430A
公开(公告)日：1974-04-30
申请号：US26644172
申请日：1972-06-26
Applicant: FRUNGEL F
Inventor： FRUNGEL F
CPC classification number: G01N21/538
Abstract: An arrangement for determining the density of natural fog in the atmosphere in which a spark lamp serving also as a flashing beacon projects a beam of light composed of consecutive pulses through the fog laden atmosphere so as to scatter part of the light to thus form consecutive pulses of scattered light in a defined region of the path of the light beam, the intensity of which is proportional to the density of the fog in this region, and in which light pulse receiver means are constructed and arranged relative to said region so as to receive only the scattered light pulses which are measured by the receiver means to thereby indicate the density of fog in the aforementioned region.
Abstract translation: 用于确定大气中的自然雾的密度的装置，其中也用作闪烁信标的火花灯在通过雾气的大气中投射由连续脉冲组成的光束，以散射部分光从而形成连续的脉冲 在光束的路径的限定区域中的散射光，其强度与该区域中的雾的密度成比例，并且其中光脉冲接收装置相对于所述区域构造和布置以便接收 只有由接收器装置测量的散射光脉冲，从而表示上述区域中的雾的密度。
-
公开(公告)号：US3729634A
公开(公告)日：1973-04-24
申请号：US3729634D
申请日：1971-09-20
Applicant: RECOGNITION SYSTEMS
Inventor： JENSEN N , THOMASSON J , MEAD D
CPC classification number: G03H1/00 , Y10S359/90
Abstract: This invention comprises apparatus for controlling the ratio of the signal and reference beams in a system for making holographic filters for use in matched filter pattern recognition apparatus. Means is provided for measuring the intensity of the spatial frequencies of a signal beam, and means is provided for measuring the intensity of a reference beam. The difference between the measured beam ratio and the optimum beam ratio controls an attenuator placed in either the reference beam path or the signal beam path. A shutter may also be controlled so that uniformity of exposure is maintained as the beam ratio is adjusted.
Abstract translation: 本发明包括用于控制在用于匹配滤波器图案识别装置中的用于制造全息滤光器的系统中的信号和参考光束的比率的装置。 提供了用于测量信号光束的空间频率的强度的装置，并且提供用于测量参考光束的强度的装置。 测量光束比和最佳光束比之间的差异控制放置在参考光束路径或信号光束路径中的衰减器。 还可以控制快门，使得当调节光束比例时，保持曝光的均匀性。
-
公开(公告)号：US3726596A
公开(公告)日：1973-04-10
申请号：US3726596D
申请日：1971-08-05
Applicant: SICK ERWIN
CPC classification number: G02B27/106 , G01J1/1626 , G01J1/36 , G02B27/144
Abstract: A beam from a light source is collimated and directed at right angles into the input face of a Koster''s prism. From the output face of the prism emerge a measuring and reference beams which are parallel to each other. Lenses across the latter beams focussing the respective beams in the plane of a chopper disc. Diaphragms are positioned between the lenses and the disc.
Abstract translation: 来自光源的光束被准直并且以直角指向Koster棱镜的输入面。 从棱镜的输出面出现了彼此平行的测量和参考光束。 横跨后者的透镜将各个光束聚焦在斩光盘的平面中。 隔膜位于透镜和光盘之间。
-
公开(公告)号：US3639768A
公开(公告)日：1972-02-01
申请号：US3639768D
申请日：1968-10-09
Applicant: CORNING GLASS WORKS
Inventor： MANCINI RONALD A
CPC classification number: G01J1/4204 , G01J1/30 , G08B13/183 , H03F3/08
Abstract: A system for detecting the presence of an object passing between a photosensitive resistance and a light source. A DC feedback amplifier connected to the photosensitive resistance controls the intensity of the light source so that the system functions properly under wide variations in ambient conditions without requiring operator adjustments.
Abstract translation: 一种用于检测通过光敏电阻和光源之间的物体的存在的系统。 连接到光敏电阻的DC反馈放大器控制光源的强度，使得系统在环境条件的宽变化下正常工作，而不需要操作者调整。
-
公开(公告)号：US3596100A
公开(公告)日：1971-07-27
申请号：US3596100D
申请日：1969-02-19
Applicant: BRITISH HOVERCRAFT CORP LTD
Inventor： HOLLICK ROBERT WILLIAM
Abstract: An apparatus for measuring torque in either a stationary or rotating shaft. Two light-polarizing screens are mounted on a shaft transmitting a torque in such a manner that the twist in the shaft caused by the torque causes a relative rotatory movement between the screens. Light from a light source passes through the screens to a light-sensing device which produces a signal according to the amount of light it receives. The relative rotatory movement of the screens caused by the applied torque causes a variation in the amount of light passing to the lightsensing device so that the signal produced indicates the amount of torque. The use of light to measure twist means an absence of drag and hence the ability to measure very small torques.
-
Patent Agency Ranking
公开(公告)号：US3558896A
公开(公告)日：1971-01-26
申请号：US3558896D
申请日：1968-08-29
Applicant: BELL TELEPHONE LABOR INC
Inventor： DALY JAMES C
CPC classification number: G02B26/02
Abstract: In the optical guiding apparatus disclosed, the optical beam is guided and focused by solid lenses which are automatically positioned with respect to a reference axis established by the sensors. Fixed relative positioning of the sensors permits the movement of the lenses in a small number of discrete steps, each step being substantially equal to a threshold position error of a control loop. In a first embodiment, each sensor controls a plurality of beampositioning lenses collectively to provide the downstream beam position correction. two-position control and three-position control are employed. In second and third embodiments, each sensor effects compensating movements of upstream and downstream lenses to modify the beam position only locally.
-
公开(公告)号：US3526448A
公开(公告)日：1970-09-01
申请号：US3526448D
申请日：1967-02-14
Applicant: PERKIN ELMER CORP
Inventor： SENSENEY GEORGE T
CPC classification number: G01N21/6408 , G01J1/36 , H02P5/56
-
88.发明授权Light beam servoing system with memory element having wavelength-discrimi-nating guide and data tracks 失效具有波长差异指南和数据跟踪的存储元件的光束服务系统
公开(公告)号：US3510658A
公开(公告)日：1970-05-05
申请号：US3510658D
申请日：1967-11-06
Applicant: IBM
Inventor： RABEDEAU MELBOURNE E
IPC: G11B7/0033 , G11B7/09 , G11B7/24 , G11B11/105 , G01J1/36 , G01J1/20
CPC classification number: G11B7/0033 , G11B7/0938 , G11B7/24 , G11B11/10576 , G11B11/10584
-
公开(公告)号：US3465656A
公开(公告)日：1969-09-09
申请号：US3465656D
申请日：1966-10-28
Applicant: AGFA GEVAERT AG
Inventor： WICK RICHARD , BIEDERMANN FRIEDRICH , WINKLER ALFRED , BESTENREINER FRIEDRICH , KIPER GERD , PAWLIK GUNTER , SYBEL REINHARD VON , WASILIEWSKI ERWIN VON , WAGNER KARL
CPC classification number: H05B41/325 , G03B7/16 , G03B15/05 , G03B2215/0525
Abstract: 1,166,095. Electronic flash apparatus. AGFA-GEVAERT A.G. Oct.27, 1966 [Oct.28, 1965], No.48187/66. Heading G2A. An electronic flash apparatus for attachment to, or incorporation in a photographic camera has means for producing a preliminary flash of predetermined intensity to illuminate a subject whilst the camera shutter is closed, and means for producing a second flash whilst the shutter is open, the intensity of the second flash being varied by photo-electric means in inverse relation to the illumination of the subject produced by the combination of the preliminary flash and ambient illumination. The two flashes may be produced in a single flash-tube 52 connected in a firing circuit 6 powered by a D.C. supply circuit 11 and containing capacitors 39 and 40 for providing the energy for the first and second flashes respectively and ignition coils 49, 50 with associated capacitors 41, 42; the second firing is initiated by a mono-stable Schmidt trigger circuit 11 controlled by a time-circuit 9 containing a photoresistor 14 and a capacitor 17. In operation, a switch 30 is closed to charge up the capacitors, which charging is indicated by audible or visible means; the shutter release is then depressed first closing a switch 13 which renders the timecircuit ready for operation and then simultaneously opening a switch 18 and closing switches 45, initiating a controlled discharge of capacitors 40, and 53, causing ignition of the preliminary flash. Opening of switch 18 causes capacitor 17 to be charged through photo-resistor 14, until after a time determined by the illumination of the latter, the voltage of the capacitor is such to change the state of a relay 28 in the trigger circuit; this closes contacts 28a, 28b of the relay, thus respectively shorting out a diode 43 which prevents capacitor 40 being totally discharged and effecting an ignition of the flash-tube. The intensity of the flash, which is governed by the voltage of capacitor 40 which is determined by the time it discharges before firing, which is controlled by the photo-resistor in the time-circuit. In modifications the voltage of capacitor 40 may be varied by charging instead of discharging, and/or relay 28 may actuate the closing of an electromagnetic shutter.
-
公开(公告)号：US3347615A
公开(公告)日：1967-10-17
申请号：US35990064
申请日：1964-04-15
Applicant: COLEMAN INSTR CORP
Inventor： STAUNTON JOHN J J
IPC: G01J1/36
CPC classification number: G01J1/36
-
-
-
-
-
-
-
-
-
Search Results
263
records
(took 0.015 seconds)
