Lamp unit
US4661890A · kind A · utility
104Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Mar 28, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/542
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lamp unit includes a pair of support members facing each other and three baseless fluorescent lamps supported parallel to one another by the support members. Each support member has three support recesses located at predetermined intervals. One end of each lamp is fixedly inserted into each corresponding support recess of one of the support member and the other end to each corresponding support recess of the other support member. Each lamp has a radiation window extending in the axial direction thereof. The lamps are positioned so that light beams emitted from the windows thereof intersect on a desired straight line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.