Image pickup lens, image pickup apparatus, mobile terminal, and manufacturing method of image pickup lens
US8385011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Sep 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image pickup lens includes a first lens block with a positive refractive power, a second lens block with a negative refractive power, and an aperture stop. The first lens block includes a first lens substrate, and lens portions 1a and 1b arranged on the first lens substrate. The lens portions 1a and 1b are different from the first lens substrate in at least one of a refractive index and an Abbe number. The second lens block includes a second lens substrate, and lens portions 2a and 2b arranged on the second lens substrate. The lens portions 2a and 2b are different from the second lens substrate in at least one of a refractive index and an Abbe number. The image pickup lens satisfies predetermined conditions relating to a refractive index of the lens portion 2b, and composite thicknesses of the first lens block and the second lens block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.