Patent ID: 6457850
Filing Date: 2002-10-01
Classification: F21S,F21W

Abstract:
A lamp having a multi-reflex optical system, comprising:at least two ellipse group reflecting surfaces, each of the reflecting surfaces having a first focus and a second focus, a light source located substantially on the first focus of one of the at least two ellipse group reflecting surfaces; and an aperture from which light rays are guided outside of the lamp, wherein a first of the ellipse group reflecting surfaces has a longer focal distance than that of a second of the ellipse group reflecting surfaces, and has a different longitudinal direction than that of the second of the ellipse group reflecting surfaces, the second of the ellipse group reflecting surfaces has an inner reflecting surface portion that is configured to direct light rays, which were previously traveling towards the second focus of the first of the ellipse group reflecting surfaces, approximately towards the second focus of the second of the ellipse group reflecting surfaces, thereby forming a complex second focus for the optical system, and the aperture is located at approximately the same location as the complex second focus.