JPS5286344A - Lens for infrared rays - Google Patents

Lens for infrared rays

Info

Publication number
JPS5286344A
JPS5286344A JP300276A JP300276A JPS5286344A JP S5286344 A JPS5286344 A JP S5286344A JP 300276 A JP300276 A JP 300276A JP 300276 A JP300276 A JP 300276A JP S5286344 A JPS5286344 A JP S5286344A
Authority
JP
Japan
Prior art keywords
lens
infrared rays
those
positive
meniscus lens
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
JP300276A
Other languages
Japanese (ja)
Inventor
Yukio Takanashi
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 JP300276A priority Critical patent/JPS5286344A/en
Publication of JPS5286344A publication Critical patent/JPS5286344A/en
Pending legal-status Critical Current

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  • Lenses (AREA)

Abstract

PURPOSE: To provide a lens structure for ultra-red light, which is composed of a first positive mneiscus lens, a second negative meniscus lens and a third positive meniscus lens such that preset numberical conditions are astisfied among those three those three lenses, thereby to provide a lens structure of a large aperture ratio which is excellent in aberration compensation.
COPYRIGHT: (C)1977,JPO&Japio
JP300276A 1976-01-13 1976-01-13 Lens for infrared rays Pending JPS5286344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP300276A JPS5286344A (en) 1976-01-13 1976-01-13 Lens for infrared rays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP300276A JPS5286344A (en) 1976-01-13 1976-01-13 Lens for infrared rays

Publications (1)

Publication Number Publication Date
JPS5286344A true JPS5286344A (en) 1977-07-18

Family

ID=11545146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP300276A Pending JPS5286344A (en) 1976-01-13 1976-01-13 Lens for infrared rays

Country Status (1)

Country Link
JP (1) JPS5286344A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140310A (en) * 1983-12-28 1985-07-25 Canon Inc Projecting lens
JP2012037697A (en) * 2010-08-06 2012-02-23 Fujifilm Corp Infrared imaging lens and imaging device
CN105988195A (en) * 2015-02-04 2016-10-05 大立光电股份有限公司 Optical lens group and image capture apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140310A (en) * 1983-12-28 1985-07-25 Canon Inc Projecting lens
JP2012037697A (en) * 2010-08-06 2012-02-23 Fujifilm Corp Infrared imaging lens and imaging device
CN105988195A (en) * 2015-02-04 2016-10-05 大立光电股份有限公司 Optical lens group and image capture apparatus

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