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JPS53122426A - Projector - Google Patents

Projector

Info

Publication number
JPS53122426A
JPS53122426A JP3731577A JP3731577A JPS53122426A JP S53122426 A JPS53122426 A JP S53122426A JP 3731577 A JP3731577 A JP 3731577A JP 3731577 A JP3731577 A JP 3731577A JP S53122426 A JPS53122426 A JP S53122426A
Authority
JP
Japan
Prior art keywords
lens
projector
constitute
optical system
lenses
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
JP3731577A
Other languages
Japanese (ja)
Inventor
Yoshiya Matsui
Setsuo Minami
Noritaka Mochizuki
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 JP3731577A priority Critical patent/JPS53122426A/en
Priority to DE19782813763 priority patent/DE2813763A1/en
Publication of JPS53122426A publication Critical patent/JPS53122426A/en
Priority to US06/134,222 priority patent/US4431299A/en
Pending legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)

Abstract

PURPOSE: To reduce the number of lenses which constitute a lens system by arranging the first lens and second lens co-axial with the optical axis of an optical system in a line in order to constitute the optical system.
COPYRIGHT: (C)1978,JPO&Japio
JP3731577A 1977-03-31 1977-03-31 Projector Pending JPS53122426A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3731577A JPS53122426A (en) 1977-03-31 1977-03-31 Projector
DE19782813763 DE2813763A1 (en) 1977-03-31 1978-03-30 PROJECTION DEVICE
US06/134,222 US4431299A (en) 1977-03-31 1980-03-26 Projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3731577A JPS53122426A (en) 1977-03-31 1977-03-31 Projector

Publications (1)

Publication Number Publication Date
JPS53122426A true JPS53122426A (en) 1978-10-25

Family

ID=12494239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3731577A Pending JPS53122426A (en) 1977-03-31 1977-03-31 Projector

Country Status (1)

Country Link
JP (1) JPS53122426A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54141138A (en) * 1978-04-24 1979-11-02 Minolta Camera Co Ltd Copying optical system of erecting image formation of small size and production of the same
JPS569762A (en) * 1979-07-05 1981-01-31 Canon Inc Slit scanning optical system
JPS5893028A (en) * 1981-11-20 1983-06-02 ヘキスト・アクチエンゲゼルシヤフト Apparatus for forming scan line image of character and symbol into photosensitive recording carrier with light switching mask
JPS5940622A (en) * 1983-03-11 1984-03-06 Minolta Camera Co Ltd Optical system for variable power projection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54141138A (en) * 1978-04-24 1979-11-02 Minolta Camera Co Ltd Copying optical system of erecting image formation of small size and production of the same
JPS569762A (en) * 1979-07-05 1981-01-31 Canon Inc Slit scanning optical system
JPS5893028A (en) * 1981-11-20 1983-06-02 ヘキスト・アクチエンゲゼルシヤフト Apparatus for forming scan line image of character and symbol into photosensitive recording carrier with light switching mask
JPS5940622A (en) * 1983-03-11 1984-03-06 Minolta Camera Co Ltd Optical system for variable power projection

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