JPS6449014A - Image pickup lens - Google Patents

Image pickup lens

Info

Publication number
JPS6449014A
JPS6449014A JP20676487A JP20676487A JPS6449014A JP S6449014 A JPS6449014 A JP S6449014A JP 20676487 A JP20676487 A JP 20676487A JP 20676487 A JP20676487 A JP 20676487A JP S6449014 A JPS6449014 A JP S6449014A
Authority
JP
Japan
Prior art keywords
refracting power
lens
aspherical
optical axis
image pickup
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
JP20676487A
Other languages
Japanese (ja)
Inventor
Hideyuki Kanayama
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP20676487A priority Critical patent/JPS6449014A/en
Publication of JPS6449014A publication Critical patent/JPS6449014A/en
Pending legal-status Critical Current

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  • Lenses (AREA)

Abstract

PURPOSE:To obtain a lens which is reducible in size and cost and has aberrations compensated by employing one lens consisting of an aspherical surface with negative refracting power and a spherical surface with positive refracting power and making the lens meet specific requirements. CONSTITUTION:This image pickup lens consists of the aspherical surface as its 1st surface which has the negative refracting power and is shown by an equation I and the spherical surface as a 2nd surface which has the positive refracting power and meets the requirements shown by inequalities II and III. Wherein, Z is the distance of a point on the spherical surface of height (y) from the optical axis from the tangential plane of the peak of the aspherical surface, (y) the height from the optical axis, r<1> the radius of curvature of the aspherical surface peak of the 1st surface, (k) an ellipticity constant, and A, B, C, and D the coefficients of aspherical surfaces of 6th, 8th, and 10th order. The aberrations are compensated sufficiently, the need for optical axis alignment is eliminated, and the size and cost are reducible.
JP20676487A 1987-08-20 1987-08-20 Image pickup lens Pending JPS6449014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20676487A JPS6449014A (en) 1987-08-20 1987-08-20 Image pickup lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20676487A JPS6449014A (en) 1987-08-20 1987-08-20 Image pickup lens

Publications (1)

Publication Number Publication Date
JPS6449014A true JPS6449014A (en) 1989-02-23

Family

ID=16528700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20676487A Pending JPS6449014A (en) 1987-08-20 1987-08-20 Image pickup lens

Country Status (1)

Country Link
JP (1) JPS6449014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004010195A1 (en) * 2002-07-18 2004-01-29 Seiko Precision Inc. Lens device
JP2011150085A (en) * 2010-01-20 2011-08-04 Komatsulite Mfg Co Ltd Imaging lens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116314A (en) * 1984-10-15 1986-06-03 Canon Inc Single image-forming lens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116314A (en) * 1984-10-15 1986-06-03 Canon Inc Single image-forming lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004010195A1 (en) * 2002-07-18 2004-01-29 Seiko Precision Inc. Lens device
JP2011150085A (en) * 2010-01-20 2011-08-04 Komatsulite Mfg Co Ltd Imaging lens

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