Patent ID: 7178947

Claim:
A lighting device for lighting a target, the lighting device comprising: a Fresnel mirror having a reflective surface facing the target, the Fresnel mirror having a center and a central optical axis; a light source on the central optical axis and between the target and the Fresnel mirror; a secondary reflector on the central optical axis and between the light source and the subject, for preventing light from the light source from directly reaching the target and for reflecting light from the light source back toward the Fresnel mirror; a center strut having one end connected to the center of the Fresnel mirror and an opposite end connected to the light source for setting a spacial relationship between the light source and the Fresnel mirror; and at least one stabilizing strut connected from a side edge of the Fresnel mirror away from the center of the Fresnel mirror, to a point along the center strut for keeping the light source and the center strut on the central optical axis of the Fresnel mirror.