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JPS5339146A - Lens system - Google Patents

Lens system

Info

Publication number
JPS5339146A
JPS5339146A JP11407176A JP11407176A JPS5339146A JP S5339146 A JPS5339146 A JP S5339146A JP 11407176 A JP11407176 A JP 11407176A JP 11407176 A JP11407176 A JP 11407176A JP S5339146 A JPS5339146 A JP S5339146A
Authority
JP
Japan
Prior art keywords
lens system
forming
light quantity
resolving power
permeable film
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
JP11407176A
Other languages
Japanese (ja)
Inventor
Rokuro Watabe
Atsushi Kawamura
Nobuo Sakuma
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP11407176A priority Critical patent/JPS5339146A/en
Publication of JPS5339146A publication Critical patent/JPS5339146A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Filters (AREA)
  • Lenses (AREA)

Abstract

PURPOSE: To reduce aberration, light quantity loss, etc. and enhance resolving power by forming a permeable film having wavelength selectivity on one surface of a lens system.
COPYRIGHT: (C)1978,JPO&Japio
JP11407176A 1976-09-22 1976-09-22 Lens system Pending JPS5339146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11407176A JPS5339146A (en) 1976-09-22 1976-09-22 Lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11407176A JPS5339146A (en) 1976-09-22 1976-09-22 Lens system

Publications (1)

Publication Number Publication Date
JPS5339146A true JPS5339146A (en) 1978-04-10

Family

ID=14628303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11407176A Pending JPS5339146A (en) 1976-09-22 1976-09-22 Lens system

Country Status (1)

Country Link
JP (1) JPS5339146A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555825U (en) * 1978-10-06 1980-04-15
JPS5714812A (en) * 1980-06-30 1982-01-26 Canon Inc Optical system for copying machine
JPS62180317A (en) * 1986-02-03 1987-08-07 Asahi Optical Co Ltd Variable power lens for copying
JPS64916A (en) * 1987-06-23 1989-01-05 Canon Inc Photographing lens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555825U (en) * 1978-10-06 1980-04-15
JPS5714812A (en) * 1980-06-30 1982-01-26 Canon Inc Optical system for copying machine
JPS62180317A (en) * 1986-02-03 1987-08-07 Asahi Optical Co Ltd Variable power lens for copying
JPS64916A (en) * 1987-06-23 1989-01-05 Canon Inc Photographing lens
JP2605719B2 (en) * 1987-06-23 1997-04-30 キヤノン株式会社 Shooting lens

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