SU1317300A1 - Method of measuring angular characteristics of sensitivity of photodetecting devices - Google Patents

Abstract

This invention relates to the field of energy photometry. The purpose of the invention is to improve the measurement accuracy. The scanning device performs a line-by-frame irradiation of the entrance aperture 3 with a laser beam with a distance between the lines equal to the diameter of the laser beam at half the power level. Between frames, the angular position of the photodetector is changed by rotating it around axis 4. Signals from the output of the photoreceiver arrive at the integrating device 5, in which the signal is integrated during the frame duration. 1 il. (O (L Zfs CX)

Description

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The invention relates to energy photometry and a technique for measuring the characteristics of photoreceivers, preferably with a wide field of view and a large entrance aperture.

The purpose of the invention is to improve the measurement accuracy.

The drawing shows the proposed device.

The device contains a laser 1, a scanning device 2, a photodetector 3, an axis 4 of its rotation, an integrating device 5.

I

The scanning device 2 performs line-by-frame irradiation of the entrance aperture 3 with a laser beam with a distance between the lines equal to the diameter of the laser beam at half power, which ensures a constant energy exposure of all portions of the aperture of the photodetector device. photodetector

Editor V.Kovtun

Compiled by S. Sokolov Tehred L. Oliynyk

Order 2414/37 Circulation 776, Subsidiary VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Design, 4.

7300

device by rotating it around axis 4 passing through the center of symmetry of the device. The signals from the output of the photodetector are fed to an integrating device 5, in which the signal is integrated over a time duration of one frame

Claims (1)

Invention Formula The method of measuring the angular characteristics of the sensitivity of photodetectors, including irradiation, devices with a laser, and measuring the magnitude of the output signal depending on the angle of rotation of the device around an axis conducting through its axis of symmetry, which differs from by frame-by-frame scanning with a distance between the rows equal to the diameter of the laser beam at the half power level, and the output signal is measured integrating over a time duration of one wow frame. Proofreader E.Roshko