Photoflash lamp array circuit board having electrical insulation
US4136376A · kind A · utility
2Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Oct 19, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/173
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically insulative adhesive coating for a circuit board used with a photoflash lamp array to provide sequential firing of the flash lamps. The circuit board includes the lamp firing circuitry along with switching elements connected in said circuitry and the insulative coating prevents electrical shorting of the circuitry. In a preferred embodiment, the coating material may be an organic polymer and may be provided with openings to permit radiation transfer from the flashing lamps to the underlying switches which are radiation-responsive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.