JPS5727224A - Optical separator - Google Patents

Optical separator

Info

Publication number
JPS5727224A
JPS5727224A JP10191180A JP10191180A JPS5727224A JP S5727224 A JPS5727224 A JP S5727224A JP 10191180 A JP10191180 A JP 10191180A JP 10191180 A JP10191180 A JP 10191180A JP S5727224 A JPS5727224 A JP S5727224A
Authority
JP
Japan
Prior art keywords
zone
diffracted
photodetector
photometric
structure substances
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
JP10191180A
Other languages
Japanese (ja)
Inventor
Tetsushi Nose
Kiyonobu Endo
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 JP10191180A priority Critical patent/JPS5727224A/en
Priority to US06/284,114 priority patent/US4544269A/en
Priority to DE19813129324 priority patent/DE3129324A1/en
Publication of JPS5727224A publication Critical patent/JPS5727224A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE:To equalize a photoreceiving quantity to a photodetector by a reflected and separated light beam from the respective diffracted structure substances, by controlling a reflection factor of the grid reflection surface of an optical separator which has been formed by superposing plural relief type diffracted structure substances whose area is different, respectively, on different planes. CONSTITUTION:In a photometric field of view 103, relief type diffracted structure substances 104, 105 whose area is different, respectively, are provided by superposing them, and a mean pgotometric part B and a partial photometric part A are formed. A light beam which has entered the A-zone is diffracted and wave-guided to a photodetector DA and that which has entered the B-zone to a photodetector DB, respectively. The diffracted structure substances 104, 105 are provided on the respective different planes by a reflection film on the diffracted grid surface in the B-zone and the A-zone, respectively. The photometric extent of DA, DB is equalized by controlling a reflection factor of the A-zone and the B-zone in accordance with an area of each zone. It is possible either to make the reflection factor equal in each zone, or to vary it by dividing the zone further to areas.
JP10191180A 1980-07-25 1980-07-25 Optical separator Pending JPS5727224A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10191180A JPS5727224A (en) 1980-07-25 1980-07-25 Optical separator
US06/284,114 US4544269A (en) 1980-07-25 1981-07-16 Device for measuring light incident on an optical system
DE19813129324 DE3129324A1 (en) 1980-07-25 1981-07-24 "DEVICE FOR MEASURING THE LIGHT INTO AN OPTICAL SYSTEM"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10191180A JPS5727224A (en) 1980-07-25 1980-07-25 Optical separator

Publications (1)

Publication Number Publication Date
JPS5727224A true JPS5727224A (en) 1982-02-13

Family

ID=14313087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10191180A Pending JPS5727224A (en) 1980-07-25 1980-07-25 Optical separator

Country Status (1)

Country Link
JP (1) JPS5727224A (en)

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