To simplify a structure and reduce cost, in a light distribution variable type luminaire.
This light distribution variable type luminaire 1 is provided with: a deformable elastic member 3 with a plurality of LEDs 2 arranged thereon; a luminaire body 4 having opening frame parts 41 supporting edges of the elastic member 3; and a telescopic member 5 deforming the elastic member 3 by applying a load thereto. The luminaire body 4 has a housing shape, and supports the circumference of the elastic member 3 in the opening frame parts 41 arranged in the circumference of the bottom part of the housing shape. The telescopic member 5 has a telescopic part 51 and a drive part 52 elongating/contracting the telescopic part 51. The drive part 52 is arranged on the top surface part 42 of the luminaire body 4, and a tip part 53 of the telescopic part 51 is attached to an optional part of the elastic member 3. By elongating/contracting the telescopic member 5, the elastic member 3 is deformed, and the light distribution directions of the LEDs 2 are changed. Since the optical axis directions of the light sources are changed by the elastic member and a load means deforming the elastic member, the structure of the light distribution variable type luminaire 1 is simplified and reduced in cost.
NOGUCHI SHINJI
MURAKAMI TADASHI
TANAKA WATARU
YAMAUCHI SATORU
SHIRAKAWA YUKI
NISHI TETSUYA
Katsumi Taguchi
Shinichi Mizuta
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