JPS53131034A - Deformed gauss type lens - Google Patents

Deformed gauss type lens

Info

Publication number
JPS53131034A
JPS53131034A JP1907278A JP1907278A JPS53131034A JP S53131034 A JPS53131034 A JP S53131034A JP 1907278 A JP1907278 A JP 1907278A JP 1907278 A JP1907278 A JP 1907278A JP S53131034 A JPS53131034 A JP S53131034A
Authority
JP
Japan
Prior art keywords
deformed
lens
type lens
gauss type
gauss
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.)
Granted
Application number
JP1907278A
Other languages
Japanese (ja)
Other versions
JPS5925204B2 (en
Inventor
Koichi Shinohara
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 JP53019072A priority Critical patent/JPS5925204B2/en
Publication of JPS53131034A publication Critical patent/JPS53131034A/en
Publication of JPS5925204B2 publication Critical patent/JPS5925204B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)

Abstract

PURPOSE: To produce a deformed gauss type lens, which is excellent in quality and low at production cost, by making an aperture ratio of 2.0, a picture angle of 45 degrees and the back focal length larger than 0.73, by reducing the thicknesses of respective lens components, by suitably selecting the angular distribution and the spacings of the lens sides, and by using inexpensive glass for a convex lens system.
COPYRIGHT: (C)1978,JPO&Japio
JP53019072A 1978-02-23 1978-02-23 Modified Gaussian lens Expired JPS5925204B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53019072A JPS5925204B2 (en) 1978-02-23 1978-02-23 Modified Gaussian lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53019072A JPS5925204B2 (en) 1978-02-23 1978-02-23 Modified Gaussian lens

Publications (2)

Publication Number Publication Date
JPS53131034A true JPS53131034A (en) 1978-11-15
JPS5925204B2 JPS5925204B2 (en) 1984-06-15

Family

ID=11989219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53019072A Expired JPS5925204B2 (en) 1978-02-23 1978-02-23 Modified Gaussian lens

Country Status (1)

Country Link
JP (1) JPS5925204B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444473A (en) * 1979-10-04 1984-04-24 Minolta Camera Kabushiki Kaisha Gauss type lens system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444473A (en) * 1979-10-04 1984-04-24 Minolta Camera Kabushiki Kaisha Gauss type lens system

Also Published As

Publication number Publication date
JPS5925204B2 (en) 1984-06-15

Similar Documents

Publication Publication Date Title
JPS5258529A (en) Camera system
JPS52105849A (en) Single lens reflex optical system for endoscope
JPS5226236A (en) Zoom lens system
JPS5378838A (en) Wide-angle lens of symmetrical type
JPS5232323A (en) Front iris large aperture ratio lens
JPS52104137A (en) Zoom lens system
JPS53122423A (en) Compact photographic lens of large aperture
JPS53131034A (en) Deformed gauss type lens
JPS5417042A (en) Wide-angle zoom lens
JPS53110822A (en) Photographic lens
JPS53117420A (en) Large aperture ratio lens of long back focus
JPS5355024A (en) Shift lens
JPS52114322A (en) Photographic lens
JPS5355119A (en) Super wide angle lens of retrofocus
JPS5282333A (en) Long focal distance lens of modified elnoster type
JPS5430027A (en) Photographic lens of shortened type
JPS5359418A (en) Wide angle lens of retrofocus type
JPS5430821A (en) Quasi-wide angle lens
JPS543528A (en) Retrofocus type wide angle lens
JPS5262433A (en) Reshaping zoom lens telephoto
JPS53129630A (en) Wide angle photographic lens
JPS52146620A (en) Gauss type lens
JPS53122426A (en) Projector
JPS5326122A (en) Zoom lens
JPS5441149A (en) F.q lens