Curved and reflective surface for redirecting light to bypass a light source
View Patent ↗A UV curing lamp is provided which includes a curved, reflective surface which redirects incident light toward a band-pass filter while bypassing the lamp. A heat sink is provided for the band-pass filter, the heat sink containing a woolen material such as aluminum wool. A portion of the light is reflected by the curved reflective surface and is transmitted through the band-pass filter and into the heat sink, the remainder of the light being reflected by the band-pass filter. The heat sink absorbs the light transmitted through the band-pass filter and dissipates the heat associated therewith.
1. A curing lamp comprising:
a light source;
a reflective surface positioned behind the light source and configured to reflect light emitted by the light source so that substantially none of the emitted light is incident on the light source; and
a band-pass filter positioned in the path of at least some of the light which the light source is configured to radiate and positioned in the path of at least some of the light which the reflective surface reflects.
2. The curing lamp according to claim 1 , wherein the band-pass filter is planar.
3. The curing lamp according to claim 1 , wherein the band-pass filter is curved.
4. The curing lamp according to claim 1 , wherein the reflective surface is formed of two parts.
5. The curing lamp according to claim 4 , wherein at least one of the two parts of the reflective surface is a reflector.
6. The curing lamp according to claim 4 , wherein at least one of the two parts of the reflective surface is a band-pass filter.
7. The curing lamp according to claim 4 , wherein each of the two parts of the reflective surface is curved.
8. The curing lamp according to claim 7 , wherein at least one of the curved, reflective surfaces is spherical.
9. The curing lamp according to claim 7 , wherein at least one of the curved, reflective surfaces is aspherical.
10. The curing lamp according to claim 7 , wherein at least one of the curved, reflective surfaces is formed of a series of flats.
11. The curing lamp according to claim 7 , wherein at least one of the curved, reflective surfaces is cylindrical.
12. The curing lamp according to claim 1 , wherein the reflective surface is a reflector.
13. The curing lamp according to claim 1 , wherein the reflective surface is a band-pass filter.
14. The curing lamp according to claim 1 , further comprising:
a heat sink provided proximate the band-pass filter.
15. The curing lamp according to claim 14 , wherein the heat sink is formed of a woolen material adapted to absorb light transmitted by the band-pass filter.
16. The curing lamp according to claim 14 , wherein the band-pass filter is a cold mirror.
17. The curing lamp according to claim 16 , wherein the cold mirror is a folding mirror.
18. The curing lamp according to claim 1 , wherein the light source is adapted to radiate light having a plurality of wavelengths including light having a wavelength in a first range and a wavelength outside of the first range.
19. The curing lamp according to claim 18 , wherein the band-pass filter is adapted to reflect light having wavelengths in the first range and to transmit light having wavelengths outside of said first range.
20. The curing lamp according to claim 19 , further comprising:
a heat sink provided proximate the band-pass filter.
21. The curing lamp according to claim 20 , wherein the heat sink is formed of a woolen material adapted to absorb the light transmitted by the band-pass filter.
22. The curing lamp according to claim 21 , wherein the band-pass filter is planar.
23. The curing lamp according to claim 21 , wherein the band-pass filter is curved.
24. The curing lamp according to claim 21 , wherein the reflective surface is formed of two parts.
25. The curing lamp according to claim 24 , wherein at least one of the two parts of the reflective surface is a reflector.
26. The curing lamp according to claim 24 , wherein at least one of the two parts of the reflective surface is a band-pass filter.
27. The curing lamp according to claim 21 , wherein the reflective surface is a band-pass filter.
28. The curing lamp according to claim 21 , wherein the reflective surface is a reflector.
29. The curing lamp according to claim 1 , wherein the reflective surface is metallic.
30. The curing lamp according to claim 1 , wherein the reflective surface is nonmetallic.
31. The curing lamp according to claim 1 , wherein the reflective surface is coated.
32. The curing lamp according to claim 31 , wherein the reflective surface is polished.