Image sensing module, imaging lens and code reading method
US8462448B2 · kind B2 · utility
1Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2010 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/6153
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to produce, for example, an image sensing module which has a resolving power enough to meet required specifications for both photographing a close object and photograph a far object, and which has a simple structure, an image sensing module includes: an imaging lens having an increased depth of field and a decreased curvature of field; and a sensor provided between (i) a location of a best image surface of the imaging lens with respect to white light from a sunflower and (ii) a location of a best image surface of the imaging lens with respect to white light from a tree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.