JPS5727226A - Optical separator - Google Patents

Optical separator

Info

Publication number
JPS5727226A
JPS5727226A JP10258580A JP10258580A JPS5727226A JP S5727226 A JPS5727226 A JP S5727226A JP 10258580 A JP10258580 A JP 10258580A JP 10258580 A JP10258580 A JP 10258580A JP S5727226 A JPS5727226 A JP S5727226A
Authority
JP
Japan
Prior art keywords
diffracted
light beam
structure substance
degree
diffracted 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
JP10258580A
Other languages
Japanese (ja)
Inventor
Kiyonobu Endo
Tetsushi Nose
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 JP10258580A priority Critical patent/JPS5727226A/en
Publication of JPS5727226A publication Critical patent/JPS5727226A/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
    • G02B27/108—Beam splitting or combining systems for sampling a portion of a beam or combining a small beam in a larger one, e.g. wherein the area ratio or power ratio of the divided beams significantly differs from unity, without spectral selectivity
    • 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
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • 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)
  • Spectroscopy & Molecular Physics (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE:To execute photometry by a high degree diffracted light beam, and also to prevent generation of a ghost image which is caused by a low degree diffracted light beam, by deciding a pitch of a relief type diffracted structure substance, by the length of the diffracted structure substance, the diameter of a photodetecting system, and an optical distance between the diffracted structure substance and the photodetecting system. CONSTITUTION:To an optical separator which has been constituted of a relief type diffracted structure substance is made incident an image formation luminous flux 35, a part of said flux is diffracted, a high degree diffracted light beam of 2-degree or higher is made to branch as a separated light beam 37 to outside of the image formation luminous flux, and its photometry is executed by a photodetector. The image formation luminous flux which has been transmitted is separated into 0-degree diffracted light beam 36, 1-degree diffracted light beam 38 ... N-degree diffracted light beam, and is led to an eye piece lens 33 being a photodetecting system, and a film. A low degree diffracted light beam is led out of the photodetecting system by deriving a pitch (d) of the diffracted structure substance by a condition as shown in the formula. In this regard, l1, l2 and L in the formula, show length of the diffracted structure substance, the diameter of the photodetecting system, and the distance between the diffracted structure substance and the photodetecting system, respectively.
JP10258580A 1980-07-25 1980-07-25 Optical separator Pending JPS5727226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10258580A JPS5727226A (en) 1980-07-25 1980-07-25 Optical separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10258580A JPS5727226A (en) 1980-07-25 1980-07-25 Optical separator

Publications (1)

Publication Number Publication Date
JPS5727226A true JPS5727226A (en) 1982-02-13

Family

ID=14331300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10258580A Pending JPS5727226A (en) 1980-07-25 1980-07-25 Optical separator

Country Status (1)

Country Link
JP (1) JPS5727226A (en)

Similar Documents

Publication Publication Date Title
JPS5511216A (en) Connecting optical system of light guide
JPS55144566A (en) Optical fiber device for light wave range finder
JPS5246813A (en) Photographic optical system for observation for ophthalmofunduscopic c amera
JPS5727226A (en) Optical separator
JPS5789731A (en) Focusing screen
JPS57168235A (en) Photometric optical system of single-lens reflex camera
JPS5420750A (en) Photo coupler
JPS5667822A (en) Focal diaphragm
JPS52104925A (en) Single lens reflex camera,s photometric optical system
JPS5727206A (en) Bundle fiber
JPS57146232A (en) Camera incorporating plural lenses
JPS5722210A (en) Optical device
JPS5417620A (en) Solid pickup element
JPS5347851A (en) Coupling element for optical branching
JPS5727227A (en) Optical separator
JPS5727225A (en) Optical separator
JPS5538520A (en) Reflection-refraction type telephoto lens
JPS5293234A (en) Color separation optic for color television camera
JPS547927A (en) Photographic lens of excellent focusing operation
JPS5727229A (en) Optical separator
JPS5627119A (en) Finder device of single lens reflex camera
JPS5472068A (en) Optical processor
KR850002902A (en) Stereoscopic equipment for camera
JPS5727230A (en) Optical separator
JPS56128041A (en) Light wave-length multiple signal transmission equipment