| 摘要 |
An infrared heat lamp 10 comprises a reflector body 12, closed by a lens 16 and having a source of infrared radiation 20 positioned within the body. The lens having a plurality of lenticules 32 formed thereon to provide uniform radiant intensity within a 50{ cone on a planar surface spaced from the lens, the radiant intensity on the surface varying as the inverse of (Cos …)<2>, where …= angle from normal. The lenticules may have a parabolic form. |
