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公开(公告)号：EP1130371A1
公开(公告)日：2001-09-05
申请号：EP00301639.1
申请日：2000-03-01
Applicant: Hamamatsu Photonics K.K. , Rados Technology OY
CPC classification number: G01J1/04 , G01J1/0219 , G01J1/0247 , G01J1/0271 , G01J1/46
Abstract: The system comprises a main body unit 4 which has a first terminal 7 and a head unit 6 which has a second terminal 9 attachable to and detachable from the first terminal 7 and which is attachable to and detachable from the main body unit 4. The head unit 6 has a photosensor 18 connected to the second terminal 9 and adapted to generate photocurrent according to incident optical power, and a capacitor 20 connected to the photosensor 18. The main body unit 4 has a charging circuit 31 connected to the first terminal 7 and being capable of charging the capacitor 20 while the first terminal 7 is coupled to the second terminal 9, and a reading circuit 31 capable of reading a voltage of the capacitor 20 while the first terminal 7 is coupled to the second terminal 9. The capacitor 20 is discharged as the photocurrent is generated.
Abstract translation: 该系统包括主体单元4，其具有第一端子7和头单元6，头单元6具有可附接到第一端子7并可从第一端子7拆卸的第二端子9，该第二端子9可附接到主体单元4并可从主体单元4拆卸。 单元6具有连接到第二端子9并且适于根据入射光功率产生光电流的光电传感器18和连接到光电传感器18的电容器20.主体单元4具有连接到第一端子7的充电电路31和 能够在第一端子7连接到第二端子9的同时对电容器20充电;以及读取电路31，其能够在第一端子7耦合到第二端子9的同时读取电容器20的电压。电容器20 随着产生光电流而放电。
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公开(公告)号：EP0842545B1
公开(公告)日：2004-08-18
申请号：EP96920861.0
申请日：1996-06-28
Applicant: RADOS TECHNOLOGY OY
Inventor： OIKARI, Timo , KAHILAINEN, Jukka , HAASLAHTI, Jukka
IPC: H01L31/113 , H01L31/12
CPC classification number: G01J1/42 , H01L31/1136
Abstract: A photodetector comprising a photoemissive surface capable of liberating photoelectrons. Photoelectrons are detected by a MOSFET having a floating gate, which is suitably charged before measurement in such a way that photoelectrons can cause a change in charge of the floating gate. The detected change indicates the amount of light received by the detector.
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