Radiation source and device
US7820991B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Apr 23, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2310/0825
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Radiation source for electromagnetic radiation the major effective component of which is in the near-infrared region, in particular in the wavelength region between 0.8 μm and 1.5 μm, to form an elongated irradiation zone, with an elongated halogen lamp comprising a glass body that has a tubular shape with bases at the ends and contains at least one spiral filament, and with an elongated reflector, such that the bases of the halogen lamp are disposed in the region of the reflector surface or behind it with reference to the position of the halogen lamp, wherein the ends of the halogen lamp are bent around toward the reflector and the spiral filaments or at least one of them is made thicker or is more densely wound in the bent region of the glass body, in such a way that the radiation flux density of the radiation source is substantially constant in the long direction of the source, between the outermost points of the bases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.