Patent ID: 6572246
Filing Date: 2003-06-03
Classification: F21V,F21W

Abstract:
A lighting apparatus comprising,a light source unit (3) comprising, at least one light source (1), and an ellipsoidal first reflector (2), said ellipsoidal first reflector (2) having a first focus and an aperture generally opposite said first focus, said light source being located generally in the vicinity of said first focus, whereby light emitted from said light source is focused to form a light beam; a reflector unit (10) comprising a second reflector (8), and a concave third reflector (9), said third reflector (9) having an opening (7) to admit said light beam, and said second reflector (8) positioned to reflect said light beam onto said third reflector (9), said second reflector (8) and said third reflector (9) being separated by a distance, and an optical element (6) positioned between said light source unit (3) and said reflector unit (10); said light source unit (3) and said reflector unit (10) being positioned so that said light beam converges at a second focus (4) located between said first reflector (2) and said second reflector (8).