To provide a low-cost spotlight which can change the shape of the light emitted to the outside.
A light source part 11, a light guide tube 15 and an LED-lighting circuit 13 are accommodated in a light case 3 having an aperture 4. The light source part 11 with many LEDs 12 emits light toward the aperture 4. The light guide tube 15 has an entrance-side open mouth, provided and covered by the light source part 11 and an exit side open mouth, continuing to the aperture and divides and forms an optical path 15c, where an emitted light from the light source part 11 is condensed to the aperture 4. A lighting circuit 13 is arranged outside the light guide tube 15. Between the aperture 4 and lenses 16a, 16b which collect a light passing through the aperture and emit the light, there is removably arranged a light-shape forming unit 21. The unit 21 is provided with a guide tube 24 to guide the light passing through the aperture 4 to the lenses 16a, 16b and a filter 25 which is attachable and detachable and is made of a thermo-plastic synthetic resin, to form a required shape to the light incident into the lenses. The guide tube 24 is arranged so that it is divided from areas in the light case 3 other than the optical path 15c and is connected only to the optical path 15c via the aperture 4.
NISHIGAKI TOMOTAKA
KATO TAIICHIRO
MURATA ATSUYA
MAKITA SHIRO
TOKUHARA NAOTO
HONDA KOICHI
TOSHIBA LIGHTING & TECHNOLOGY
| JP2006079991A | 2006-03-23 | |||
| JP2001195916A | 2001-07-19 | |||
| JPS63150407U | 1988-10-04 | |||
| JP2005317471A | 2005-11-10 | |||
| JP2005158699A | 2005-06-16 |
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto