JPS5447632A - Camera for photographing data - Google Patents

Camera for photographing data

Info

Publication number
JPS5447632A
JPS5447632A JP11434577A JP11434577A JPS5447632A JP S5447632 A JPS5447632 A JP S5447632A JP 11434577 A JP11434577 A JP 11434577A JP 11434577 A JP11434577 A JP 11434577A JP S5447632 A JPS5447632 A JP S5447632A
Authority
JP
Japan
Prior art keywords
light
divider
optical path
ghost image
image
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
JP11434577A
Other languages
Japanese (ja)
Inventor
Yoichi Okuno
Hideo Yokota
Mutsuhide Matsuda
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 JP11434577A priority Critical patent/JPS5447632A/en
Priority to US05/943,355 priority patent/US4190338A/en
Publication of JPS5447632A publication Critical patent/JPS5447632A/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
    • G02B27/0018—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
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film, e.g. title, time of exposure
    • G03B17/245—Optical means
    • 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
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film
    • G03B2217/242—Details of the marking device
    • G03B2217/243—Optical devices

Abstract

PURPOSE:To simply prevent the focusing of a ghost image of data on the film plane by providing a polarizing filter, etc. CONSTITUTION:Radiating light of data 9 from the light source 8 is divided by light divider 11, such as, half mirror, etc., introduced into the finder optical path and the photographing optical path, and the image light which proceeds to the photographing optical path contains the light of ghost image reflected on the transmitting plane of the divider 11. The photo-image of the ghost in which the ratio of polarizing component is inverted is intercepted by polarizing filter 18 and simply removed, hance the ghost image is not focused on the film 2. And further, the focusing of the ghost image light on the plane of the film 2 can be simply prevented by changing the optical path of the ghost image light due to the formation of the light divider 11 into the sedge shape or making the thickness of the divider 11 much thicker.
JP11434577A 1977-09-21 1977-09-21 Camera for photographing data Pending JPS5447632A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11434577A JPS5447632A (en) 1977-09-21 1977-09-21 Camera for photographing data
US05/943,355 US4190338A (en) 1977-09-21 1978-09-18 Data recording camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11434577A JPS5447632A (en) 1977-09-21 1977-09-21 Camera for photographing data

Publications (1)

Publication Number Publication Date
JPS5447632A true JPS5447632A (en) 1979-04-14

Family

ID=14635430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11434577A Pending JPS5447632A (en) 1977-09-21 1977-09-21 Camera for photographing data

Country Status (1)

Country Link
JP (1) JPS5447632A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735935U (en) * 1980-08-05 1982-02-25
US6972809B2 (en) * 2001-12-20 2005-12-06 Sharp Kabushiki Kaisha Path shifting optical device having polarization correcting section and optical display system including same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735935U (en) * 1980-08-05 1982-02-25
US6972809B2 (en) * 2001-12-20 2005-12-06 Sharp Kabushiki Kaisha Path shifting optical device having polarization correcting section and optical display system including same

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