公开(公告)号：US5250795A

公开(公告)日：1993-10-05

申请号：US918410

申请日：1992-07-24

Applicant: Musubu Koishi ,  Motoyuki Watanabe

Inventor： Musubu Koishi ,  Motoyuki Watanabe

IPC: G01J1/42 ,  G01J1/44 ,  H01J31/50 ,  H01J40/14

CPC classification number: H04N5/357 ,  G01J1/42 ,  H01J31/502 ,  H01J31/507 ,  H04N5/2254 ,  G01J2001/442 ,  G01J2001/4453 ,  G01J2001/4486 ,  H01J2231/50015 ,  H01J2231/50094

Abstract: A feeble light measuring device comprising a photon counting tube, an image detector and a signal processor. The photon counting tube includes a photocathode for generating an electron upon an incidence of light to be measured, an MCP for multiplying the photoelectron from the photocathode and a phosphor screen for converting the photoelectrons multiplied by the MCP into a light image such as luminous spots. The MCP is not saturated by an incidence of single photoelectron. Thus the spread of the luminous spot corresponding to the single photoelectron is very small. The image detector converts the light image from the photon counting tube to electric outputs the signal processor removes noise components of the electric outputs from the image detector to extract signal components of the electric outputs.

公开(公告)号：US4988859A

公开(公告)日：1991-01-29

申请号：US350273

申请日：1989-05-11

Applicant: Yutaka Tsuchiya ,  Shinichiro Aoshima

Inventor： Yutaka Tsuchiya ,  Shinichiro Aoshima

IPC: G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44 ,  G01J11/00 ,  H01J31/50

CPC classification number: G01J1/04 ,  G01J1/0459 ,  G01J1/42 ,  H01J31/502 ,  G01J2001/4486

Abstract: An optical waveform measuring device, comprising an optical amplifier for amplifying a light beam under measurement and a photodetector to which a light beam amplified by the optical amplifier is applied.

Abstract translation: 一种光波形测量装置，包括用于放大测量光束的光放大器和由光放大器放大的光束的光电检测器。