Lensless optical system in imaging sensing module
US6211508A · kind A · utility
4Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/407
Abstract
A lensless optical system comprises identical tubes that can be made and molded out of a plastic material. Each of the tubes includes an opening at the end that faces a scanning object. When the scanning object is illuminated and passes through the image sensing module, openings of all the tubes capture incident light reflected from the scanning object and the captured light passes the tubes and subsequently impinges onto the image sensor. An image of the scanning object is produced when the image sensor is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.