JPS6449014A - Image pickup lens - Google Patents
Image pickup lensInfo
- 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
Links
Landscapes
- 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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61116314A (en) * | 1984-10-15 | 1986-06-03 | Canon Inc | Single image-forming lens |
-
1987
- 1987-08-20 JP JP20676487A patent/JPS6449014A/en active Pending
Patent Citations (1)
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)
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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