To hardly lead to temperature rise in a light source unit for effectively converting light of a light source into the light moving forward by using an elliptical reflection mirror and a round reflection mirror facing the elliptical reflection mirror.
The light source unit 4 comprises: the elliptical reflection mirror 6 housed in a case 2; a light source lamp 7 arranged on a first focal point position F1 of the elliptical reflection mirror 6; a light-transmitting hole 12 arranged on a second focal point position F2; and the round reflection mirror 8 facing the elliptical reflection mirror 6. An edge 6a of the elliptical reflection mirror 6 and an edge 8b of the round reflection mirror 8 are arranged by separating at a designated distance d. The light C emitted forward from the light source lamp 7 is converged to the light source lamp 7 by the round reflection mirror 8, and is irradiated forward by reflecting with the elliptical reflection mirror 6 as well as the light emitted backward from the light source lamp 7. Heat radiated from the light source lamp 7 is radiated outside since replacement of air is carried out by separating the elliptical reflection mirror 6 and the round reflection mirror 8, and therefore, temperature rise of the light source unit 4 is not caused.
| JP2016152167 | LED LIGHTING DEVICE |
| JP2019114503 | ILLUMINATION APPARATUS AND MICROSCOPE APPARATUS |
SEKII HIROYUKI
MATSUBAYASHI YOKO
| JPH06162807A | 1994-06-10 | |||
| JPH08138426A | 1996-05-31 | |||
| JPH0540223A | 1993-02-19 | |||
| JP2005134565A | 2005-05-26 | |||
| JP2543260B2 | 1996-10-16 |
Katsumi Taguchi
Shinichi Mizuta