JPS5788444A - Projection device - Google Patents

Projection device

Info

Publication number
JPS5788444A
JPS5788444A JP55164662A JP16466280A JPS5788444A JP S5788444 A JPS5788444 A JP S5788444A JP 55164662 A JP55164662 A JP 55164662A JP 16466280 A JP16466280 A JP 16466280A JP S5788444 A JPS5788444 A JP S5788444A
Authority
JP
Japan
Prior art keywords
reflector
shutter
closed
optical fiber
light beam
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
JP55164662A
Other languages
Japanese (ja)
Inventor
Tsuyoshi Kasai
Manabu Goto
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.)
Ushio Denki KK
Ushio Inc
Original Assignee
Ushio Denki KK
Ushio 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 Ushio Denki KK, Ushio Inc filed Critical Ushio Denki KK
Priority to JP55164662A priority Critical patent/JPS5788444A/en
Publication of JPS5788444A publication Critical patent/JPS5788444A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To utilize light beams which are radiated while a shutter is closed, by installing a reflector on the surface of a light source side of the shutter for shading the light beams, and providing an optical fiber on the position for photodetecting the reflected rays. CONSTITUTION:When a reflector driving mechanism 25 is energized in a state that a shutter 12 has been closed, a turning plate 20 is turned and is positioned at the first operating position, and a light beam reflected by the first plane mirror 3 is led by an optical fiber 29A through the first reflector 23A and the first photodetecting part 30A. When a switching mechanism 28 is further energized, the turning plate 20 is further turned, and the reflector 23A gets out of the optical path, but the second reflector 23B cuts off the optical path, a light beam is reflected by the second photodetecting part 30B, passes through this photodetecting part 30B, and is led by the second optical fiber 29B. According to such a constitution, a light beam from a light source is fetched from the first and second optical fibers 29A, 29B even while the shutter is closed.
JP55164662A 1980-11-25 1980-11-25 Projection device Pending JPS5788444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164662A JPS5788444A (en) 1980-11-25 1980-11-25 Projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164662A JPS5788444A (en) 1980-11-25 1980-11-25 Projection device

Publications (1)

Publication Number Publication Date
JPS5788444A true JPS5788444A (en) 1982-06-02

Family

ID=15797423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164662A Pending JPS5788444A (en) 1980-11-25 1980-11-25 Projection device

Country Status (1)

Country Link
JP (1) JPS5788444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007252462A (en) * 2006-03-22 2007-10-04 Press Kogyo Co Ltd Device for preventing falling of article from rack

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831666U (en) * 1971-08-20 1973-04-17
JPS51123565A (en) * 1975-04-21 1976-10-28 Nippon Telegr & Teleph Corp <Ntt> Three-dimention-position differential adjustment of processing article

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831666U (en) * 1971-08-20 1973-04-17
JPS51123565A (en) * 1975-04-21 1976-10-28 Nippon Telegr & Teleph Corp <Ntt> Three-dimention-position differential adjustment of processing article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007252462A (en) * 2006-03-22 2007-10-04 Press Kogyo Co Ltd Device for preventing falling of article from rack

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