公开(公告)号：EP1048938A3

公开(公告)日：2002-08-21

申请号：EP00105593.8

申请日：2000-03-16

Applicant: ELECTRONIC INSTRUMENTATION AND TECHNOLOGY, INC.

Inventor： May, Joe T.

IPC: G01J1/42 ,  G01J1/04

CPC classification number: G01J1/04 ,  G01J1/0271 ,  G01J1/0437 ,  G01J1/0474 ,  G01J1/0488 ,  G01J1/429 ,  G01J2001/0276

Abstract: A UV sensor design which virtually eliminates solarization effects on optical components and photodetector and is effective for both broad area and collimated light sources. The sensor design reduces the number of photons striking a unit area of any of the materials in the light path sensitive to UV light to a level which does not produce appreciable solarization over very long periods of time. The UV sensor has as the first optical element in the viewing path a UV transmitting, extremely low solarization window. The back surface of this window is frosted to produce some diffusion of the UV rays. A small metal disc with a very small aperture is the next optical element and reduces the total amount of energy admitted to the optical measurement system. A second frosted UV transmitting, extremely low solarization window further diffuses the light beam passing through the aperture. The UV light from this second window travels toward to two UV filters and is further dispersed to produce low intensity level UV light which impinges on a silicon photodetector.

Abstract translation: UV传感器设计实际上消除了对光学部件和光电检测器的日晒效应，对广域和准直光源都是有效的。 传感器设计可减少光子中紫外光敏感的光路中任何材料的单位面积的光子数量，使其在不长时间内不会产生明显的日晒。 UV传感器作为观察路径中的第一个光学元件，具有UV透射，极低的日光窗口。 该窗的背面磨砂，产生紫外线的一些扩散。 具有非常小孔径的小金属盘是下一个光学元件，并且减少了进入光学测量系统的能量的总量。 第二次磨砂的紫外线透射极低的太阳化窗口进一步扩散通过光圈的光束。 来自该第二窗口的紫外线向着两个紫外线过滤器移动并进一步分散以产生撞击在硅光电检测器上的低强度水平的紫外光。

公开(公告)号：EP1048938A2

公开(公告)日：2000-11-02

申请号：EP00105593.8

申请日：2000-03-16

Applicant: ELECTRONIC INSTRUMENTATION AND TECHNOLOGY, INC.

Inventor： May, Joe T.

IPC: G01J1/42 ,  G01J1/04

CPC classification number: G01J1/04 ,  G01J1/0271 ,  G01J1/0437 ,  G01J1/0474 ,  G01J1/0488 ,  G01J1/429 ,  G01J2001/0276

Abstract: A UV sensor design which virtually eliminates solarization effects on optical components and photodetector and is effective for both broad area and collimated light sources. The sensor design reduces the number of photons striking a unit area of any of the materials in the light path sensitive to UV light to a level which does not produce appreciable solarization over very long periods of time. The UV sensor has as the first optical element in the viewing path a UV transmitting, extremely low solarization window. The back surface of this window is frosted to produce some diffusion of the UV rays. A small metal disc with a very small aperture is the next optical element and reduces the total amount of energy admitted to the optical measurement system. A second frosted UV transmitting, extremely low solarization window further diffuses the light beam passing through the aperture. The UV light from this second window travels toward to two UV filters and is further dispersed to produce low intensity level UV light which impinges on a silicon photodetector.