| 摘要 |
FIELD: lighting engineering, in particular, luminous radiation devices. SUBSTANCE: use is made of a double focusing and densification of the light flux with the aid of two reflectors directed one to the other by their vertices, with the body of radiation of the light flux placed between them. One of the reflectors serves as a bulb part. Each reflector has a concave reflector surface. EFFECT: enhanced efficiency of the illuminating device. 22 cl, 3 dwg |
