Device for heating the front lens of a television camera
US4355861A · kind A · utility
16Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Apr 24, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for heating the front lens of a television camera to prevent an interfering moisture on the lens which includes a heating unit, detachable from the lens tube, comprising a front disc or lens attached to a support plate; a rear disc or lens also attached to said support plate so as to form a sealed chamber between the front and rear disc; and heat coatings deposited on the chamber side surface of the front disc for heating purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.