Discharge lamp apparatus including a high pressure discharge lamp, a concave reflection mirror, and a laser light source
The present invention provides a discharge lamp apparatus including a high pressure discharge lamp, a concave reflection mirror, and a laser light source. An electrical discharge space is within the high pressure discharge lamp. A pair of electrodes faces each other in the electrical discharge space. A concave reflection mirror surrounds the high pressure discharge lamp. A laser light source emits laser light of a red wavelength band, wherein the laser light passes through the electrical discharge space.
1. A discharge lamp apparatus, comprising:
a high pressure discharge lamp including a pair of electrodes facing each other in an electrical discharge space;
a concave reflection mirror surrounding the high pressure discharge lamp; and
a laser light source that emits laser light of a red wavelength band,
wherein the laser light passes through the electrical discharge space.
2. The discharge lamp apparatus according to claim 1 , wherein the laser light passes between the pair of electrodes.
3. The discharge lamp apparatus according to claim 2 , wherein the laser light is condensed by a condensing optical system between the pair of electrodes.
4. The discharge lamp apparatus according to claim 1 , wherein the laser light passes through the concave reflection mirror from a back side of a portion between the pair of electrodes in a light emitting direction of the concave reflection mirror and enters the electrical discharge space of the high pressure discharge lamp.
5. The discharge lamp apparatus according to claim 1 , wherein the discharge lamp apparatus is used as a light source of a projector.