| 摘要 |
PURPOSE: To improve an action of a lamp by connecting a head-mounting coaxial mirror to a dome and arranging a minimum cross section part of the mirror in the same plane as the maximum cross section part of the dome substantially. CONSTITUTION: A minimum cross section part 15 is arranged in the plane coincident with a plane of a maximum cross section part 17 of a dome 3. Focal points 9, 10 of an ellipsoid are arranged on the inside of a head-mounting mirror 4 in the plane of the minor plane cross section. The dome 3 provided with a circular face-elliptic curvature forms infinite number of images distributed in the circular form provided with a diameter 11-12 in the center of a light source. Therefore, the dome 3 provides illumination matching a sheet symmetrical around an optical axis 2. When the reflection dome 3 having a circular face-elliptic curvature and feeding geometrically controlled light beams is connected to the head-mounting mirror 4, glare suppression based on an emission angle of each light emitting face and controlled light beam and advantages related to uniformity can be improved, and the reflector can be miniaturized greatly. |
