Incandescent illumination system
USRE36316E · kind E · reissue
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1995 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Oct 20, 2015 |
Classification
- Technology area (CPC —)General
Abstract
An improved incandescent lamp is disclosed that is specially adapted for use in combination with a concave reflector in providing a high-intensity beam of light. The lamp includes a plurality of linear, helically-wound filaments arranged with their longitudinal axes parallel with each other and spaced substantially uniformly around the lamp's central longitudinal axis. Orienting such a lamp with its longitudinal axis aligned with the reflector's longitudinal axis, and with the filaments near the reflector's general focal point, ensures that a high proportion of the emitted light is collected by the reflector to project the high-intensity beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.