公开(公告)号：US3843226A

公开(公告)日：1974-10-22

申请号：US33999473

申请日：1973-03-12

Applicant: LKB PRODUKTER AB

Inventor： PERSON T

IPC: G01J1/04 ,  G01J1/36 ,  G01J3/08 ,  G02B27/00

CPC classification number: G01J3/08 ,  G01J1/36

Abstract: System for periodicially shifting a light beam between two axially displaced paths consists of a rotary assembly subdivided into at least three angularly displaced segments, one of the segments allowing the beam to pass through the assembly along one path, the other two segments comprising axially aligned radially spaced oppositely directed conically shaped reflectors arranged to axially displace the beam when it impinges on one of them.

公开(公告)号：SE308036B

公开(公告)日：1969-01-27

申请号：SE177463

申请日：1963-02-18

Applicant: LKB PRODUKTER AB

Inventor： PERSON T

IPC: B01D19/00 ,  G01N1/28 ,  G01N31/00

公开(公告)号：SE355072B

公开(公告)日：1973-04-02

申请号：SE383072

申请日：1972-03-24

Applicant: LKB PRODUKTER AB

Inventor： PERSON T

IPC: G01J1/04 ,  G01J1/36 ,  G01J3/08

Abstract: 1413417 Optical apparatus LKB-PRODUKTER AB 16 March 1973 [24 March 1972] 12900/73 Heading G2J Apparatus for periodically displacing a light beam from a first path to a second path comprises a rotatable annular member having an axial bore whose end surfaces are provided with diametrically opposed reflecting surfaces. As the annular member passes through a certain angular position, light travelling along the first path is reflected at both reflecting surfaces and emerges along the second path. As shown in Fig. 2 the annular member comprises four sectors 9A-D; two opposite sectors 9A, 9C have reflecting surfaces, one sector 9D transmits light and the fourth sector 9B does not transmit light. An application of the apparatus is shown in Fig. 1. Light from sources 1, 2 passes through filters 3, 4 which transmit only wavelengths # 1 , # 2 respectively. The filtered light passes through slits 11, 12 and impinges on the apparatus 9 which directs light from each source alternately through two absorption flow cells 5, 6 to a photo-detector e.g. photo-multiplier 7. If the apparatus 9 is rotated clockwise as viewed from the left the sequence is: (a) # 1 is blocked; # 2 is doubly-reflected through cell 5 ; (b) # 1 is blocked; # 2 is transmitted through cell 6; (c) # 1 is doubly reflected through cell 6; # 2 is blocked and (d) # 1 is transmitted through cell 5; # 2 is blocked. The sector 9D which transmits light may be provided with a filter which absorbs as much light as the two reflecting surfaces.