公开(公告)号：US3548337A

公开(公告)日：1970-12-15

申请号：US3548337D

申请日：1967-03-13

Applicant: NAT RES DEV

Inventor： GATES JOHN WILLIAM CHARLES ,  HALL ROY GEOFFREY NOEL

IPC: H01S3/121 ,  H01S3/00 ,  G02B17/00

CPC classification number: H01S3/121

公开(公告)号：US3487331A

公开(公告)日：1969-12-30

申请号：US3487331D

申请日：1966-05-09

Applicant: NAT RES DEV

Inventor： GATES JOHN WILLIAM CHARLES

IPC: H01S3/11 ,  H01S3/10

CPC classification number: H01S3/123

公开(公告)号：US3560082A

公开(公告)日：1971-02-02

申请号：US3560082D

申请日：1969-11-05

Applicant: NAT RES DEV

Inventor： BURCH JAMES MORRISS ,  GATES JOHN WILLIAM CHARLES

IPC: G02B27/14 ,  G02B5/04

CPC classification number: G02B27/144

Abstract: A DEVICE FOR PRODUCTION FROM AN ENTERING LIGHT BEAM TWO EMERGING BEAMS WHICH ARE MUTUALLY INVERTED WITH RESPECT TO A STRAIGHT LINE DEFINED BY THE DEVICE. THE ENTERING BEAM IS SPLIT AT A FIRST SEMI-REFLECTING FILM INTO TWO COMPONENT BEAMS, WHICH ARE RESPECTIVELY REDIRECTED ONTO OPPOSITE FACES OF A SECOND SEMI-REFLECTING FILM SEPARATE FROM THE FIRST BY MEANS OF TWO SIMILAR AND SIMILARLY ORIENTATED REVERSING REFLECTORS, FOR EXAMPLE ROOF PRISMS, WHICH ARE SET OPTICALLY ORTHOGONAL TO EACH OTHER AND DISPOSED TO GIVE EQUAL LENGTHS FOR THE TWO COMPONENT BEAMS BETWEEN THE TWO FILMS.

公开(公告)号：US3528748A

公开(公告)日：1970-09-15

申请号：US3528748D

申请日：1966-06-14

Applicant: NAT RES DEV

Inventor： BURCH JAMES MORRISS ,  GATES JOHN WILLIAM CHARLES

IPC: G01B9/02 ,  G01B11/27 ,  G01B11/26

CPC classification number: G01B11/272 ,  G01B9/02061 ,  G01B11/27 ,  Y10S33/21