Electric lamp and optically alignable cementless base combination
US5339002A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1991 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To permit rapid adjustment of a holder structure (4) within which a singlnded pinch-sealed light source, for example a halogen incandescent lamp (1, 2) is retained, to a positioning or locating element having an optical reference surface (17a) to accurately align the light emitting element (2) of the light source with respect to an optical system, for example a reflector, a tubular adjustment sleeve (10) is provided into which the holder structure is fitted. The tubular adjustment sleeve has an essentially cylindrical portion (11) and a slightly conically converging portion (12) or an inwardly extending rim or ring (12') to permit rotational, axial and tilting adjustment of the holder structure to which the light source (1) is coupled with respect thereto. The tubular sleeve is formed with a laterally projecting flange (14, 14a) formed with a plane, burr-free engagement surface (14b) which fits against an auxiliary plane, flat reference surface (18b) on the positioning or locating element (15). The holder structure (4), the adjustment sleeve ( 10) and the positioning or locating element (15) are all formed of sheet metal and, after appropriately positioning the lamp with respect to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.