| 摘要 |
PURPOSE:To provide spot light of high energy by conveying heat rays, converged by primary/secondary converging mirrors, to a focal point hole provided in the secondary converging mirror, in the heat rays from a halogen lamp. CONSTITUTION:In a primary converging mirror 2, its one surface is opened further with the internal surface molded in a primary converging surface 4, and also a halogen lamp 8 is protrusively provided in the primary converging surface 4. In a secondary converging mirror 3, its one surface is opened further with the internal surface molded in a secondary converging surface 22, and also a focal point hole 35 is provided in a center part of the secondary converging surface 22. A transparent plate 31 innterposed in an opening surface between the primary/secondary converging mirrors 2, 3 made to agree and mounted removable by a tightening ring 19. By maintaining the primary/secodary converging surface always in a clean condition, a heat ray from the lamp is converged in the focal point hole by the primary/secondary converging surface, whereby spot light of high energy is obtained. |
