公开(公告)号：GB2260200B

公开(公告)日：1994-07-27

申请号：GB9121209

申请日：1991-10-04

Applicant: AVISION INC

Inventor： CHEN PHILIP ,  SHENG THOMAS

IPC: G02B7/182 ,  H04N1/03

公开(公告)号：GB2260200A

公开(公告)日：1993-04-07

申请号：GB9121209

申请日：1991-10-04

Applicant: AVISION INC

Inventor： CHEN PHILIP ,  SHENG THOMAS

IPC: G02B7/182 ,  H04N1/03

Abstract: A light beam folding device has at least two reflecting mirrors 3, 4 parallel to one another on the same mirror mount 12. The mirrors 3, 4 can move in synchrony by means of a special mirror mount adjustor 35 so that the reflection angle for each light beam can be adjusted simultaneously, thereby increasing the efficiency and precision of the assembly. The mirror mount 12 is secured to a structural frame 11 by parts 15, 16, 36, the angle of the mirror mount 12 being adjustable by threaded fastener 35 and lever 16.