Optical design of laser scanner to reduce thermal sensitivity
US5610753A · kind A · utility
36Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1996 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An imaging system including a Gaussian light source, such as a laser diode, an image plane, and an optical system located between the light source and the image plane. The optical system has an optical axis, a first principal focus and a second principal focus. The image plane is located at the second principal focus of the optical system. The optical system creates a Gaussian intensity profile on the image plane whose e.sup.-2 intensity diameter on such plane is substantially constant even when the Gaussian light source being imaged by the optical system shifts along the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.