| 摘要 |
<p>1481234 Lasers REPUBLIKANSKI CENTAR SA TNTM 18 Oct 1974 [18 Oct 1973] 45299/74 Heading H1C A laser rod 7 is pumped by solar energy concentrated and distributed along its length by an axial optical system comprising a concave receiving reflector 1, a confocal concave reflector 2 and a frusto-conical mirror 4, the mirror and laser rod being cooled by a circulated fluid 5. To minimize refraction losses the fluid flow is laminar. The conical mirror has position adjustment screws and the concave reflector 2 is centrally apertured for the laser output beam. Reflector 2 may have a heat distributing surface 3. In a modification the frusto-conical mirror 4 and laser rod may be positioned behind the reflector 1, an aperture being formed in this reflector to provide a path for sunlight reflected towards the conical mirror by the reflector 2.</p> |
