公开(公告)号：US3648056A

公开(公告)日：1972-03-07

申请号：US3648056D

申请日：1970-01-12

Applicant: HONEYWELL INC

Inventor： BUTTWEILER THOMAS B ,  TITUS JOSEPH S

IPC: G01J1/04 ,  G01J1/06 ,  H01J15/00

CPC classification number: G01J1/06 ,  G01J1/0214 ,  G01J1/0252

Abstract: Apparatus for protecting an electro-optical detector from sources of radiant energy located off the primary optical axis is provided so as to take advantage of the focusing characteristics of the primary optical components to direct desired radiation in a cavity designed and located to receive the focused off-axis radiant energy and cause it to dissipate by absorption during a number of reflections.

Abstract translation: 提供了用于保护电光检测器免受位于主光轴外的辐射能源的装置，以便利用主要光学部件的聚焦特性来将期望的辐射引导到设计和定位以接收聚焦的空腔 在一些反射过程中吸收辐射能量并使其消散。