公开(公告)号：IT8321019D0

公开(公告)日：1983-05-10

申请号：IT2101983

申请日：1983-05-10

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

IPC: G02B20060101 ,  G02B

公开(公告)号：CA820002A

公开(公告)日：1969-08-12

申请号：CA820002D

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

公开(公告)号：US3361027A

公开(公告)日：1968-01-02

申请号：US26111863

申请日：1963-02-26

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

IPC: G01N21/21

CPC classification number: G01N21/21

公开(公告)号：CA820003A

公开(公告)日：1969-08-12

申请号：CA820003D

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

公开(公告)号：CA666996A

公开(公告)日：1963-07-16

申请号：CA666996D

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I ,  MATTHEWS KENNETH V ,  SUNDSTROM KARL E

公开(公告)号：US3430041A

公开(公告)日：1969-02-25

申请号：US3430041D

申请日：1965-03-17

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

IPC: G01N21/25 ,  G01N21/33 ,  G01N21/26

CPC classification number: G01N21/255 ,  G01N21/33

公开(公告)号：US3342099A

公开(公告)日：1967-09-19

申请号：US26106663

申请日：1963-02-26

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

IPC: G01J3/42 ,  G01N21/51

CPC classification number: G01N21/51 ,  G01J3/42

公开(公告)号：IT1163337B

公开(公告)日：1987-04-08

申请号：IT2101983

申请日：1983-05-10

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I

IPC: G02B20060101 ,  G02B

Abstract: The filter includes a number of birefringent liquid crystal cells arranged in a stack, each of the cells including a zero-twist, nematic-phase liquid crystal material with a positive dielectric anisotropy and a polarizer between each cell and before and after the first and last cells, respectively, in the stack. A collimated beam of light is directed through the stack of cells and the emergent beam is utilized and detected. By the careful selection of the orders of the cells, the filter can be made highly transmissive at a single wavelength and can have a relatively high level of resolution and a low stray-light ratio. All of the cells can be electrically connected in parallel and the transmittance wavelength varied over a relatively wide range by the application of a voltage to each of the cells. One of the cells can be used as a modulator to alternately render the cell transmissive and opaque.

公开(公告)号：CA806899A

公开(公告)日：1969-02-25

申请号：CA806899D

Applicant: BECKMAN INSTRUMENTS INC

Inventor： KAYE WILBUR I