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JPS6410225A - Optical image arithmetic unit - Google Patents

Optical image arithmetic unit

Info

Publication number
JPS6410225A
JPS6410225A JP16621487A JP16621487A JPS6410225A JP S6410225 A JPS6410225 A JP S6410225A JP 16621487 A JP16621487 A JP 16621487A JP 16621487 A JP16621487 A JP 16621487A JP S6410225 A JPS6410225 A JP S6410225A
Authority
JP
Japan
Prior art keywords
crystal
resonator
input images
optical image
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16621487A
Other languages
Japanese (ja)
Inventor
Yasuo Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP16621487A priority Critical patent/JPS6410225A/en
Publication of JPS6410225A publication Critical patent/JPS6410225A/en
Pending legal-status Critical Current

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  • Processing Or Creating Images (AREA)

Abstract

PURPOSE:To minimize variations in the coherence and in-use wavelength of input light with time by performing logical arithmetic operation for input images inputted to PR crystal by utilizing the oscillation threshold value of the PR crystal. CONSTITUTION:The PR crystal 4 with optically induction refractive effect (PR effect) is arranged at some part in a ring resonator and the oscillation threshold value of the PR crystal 4 is utilized to perform the logical operation between input images 1 and 2 inputted to the PR crystal 4. In this case, laser light 9 is made incident as pump light on the PR crystal 4 to put the resonator in an oscillation state, and the input images 1 and 2 are made incident on the PR crystal 4 from outside to control the oscillation state of the resonator; and output light from the resonator is used to perform the logical arithmetic result of the input images 1 and 2. Therefore, an optical image arithmetic unit of simple constitution is obtained which is hardly affected by variations in coherence and wavelength and has stable heat resistance and stability.
JP16621487A 1987-07-02 1987-07-02 Optical image arithmetic unit Pending JPS6410225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16621487A JPS6410225A (en) 1987-07-02 1987-07-02 Optical image arithmetic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16621487A JPS6410225A (en) 1987-07-02 1987-07-02 Optical image arithmetic unit

Publications (1)

Publication Number Publication Date
JPS6410225A true JPS6410225A (en) 1989-01-13

Family

ID=15827220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16621487A Pending JPS6410225A (en) 1987-07-02 1987-07-02 Optical image arithmetic unit

Country Status (1)

Country Link
JP (1) JPS6410225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223966A (en) * 1990-05-05 1993-06-29 Canon Kabushiki Kaisha Method and apparatus for obtaining modulated light indicative of an image operationally formed by projecting an inputted image on the flat plate of an optical induction reflective index crystal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223966A (en) * 1990-05-05 1993-06-29 Canon Kabushiki Kaisha Method and apparatus for obtaining modulated light indicative of an image operationally formed by projecting an inputted image on the flat plate of an optical induction reflective index crystal

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