| abstract |
Fully pressed collimator, which ensures high efficiency and small axial dimensions without the use of mirror coatings, contains a convex refractor (1) and a catadiptric concave reflector (2) that surrounds the convex refractor (1), which are optically connected to one another and implemented on a common supporting layer. The side part of the refractor (1) includes a ring collecting lens (4) which lies in the way of the rays (13) coming from the focal point (F) to the reflector (2) and contains dioptric Fresnel rings (5, 6), their arrangement enables the collimator to be manufactured in one operation using the direct strand method. |