Stanley Electric Co., Ltd

Asahi Kasei Chemicals Corporation

Eiichi Sugimoto

Tatsuya Goto

Nobuhiro Kobayashi

Eiji Takashiro

Tatsuya Hioki

Yuji Tamaki

Masaaki Teranishi

The present invention is directed to a small-sized stroboscopic light emitting device that controls disorder in light distribution (orientation) characteristic caused by a shape of the reflector, and achieves a homogeneous light quantity distribution. The stroboscopic light emitting device includes an illuminator, a reflectorfor reflecting light from the reflector, and a lensfor allowing the light reflected by the reflectorto pass through and illuminate outwardly, and the lenscontains a fillerin the base material. A refractive index and a mean particle size of the filler are between or equal to 1.3 to 2.8 and between or equal to 0.1 &#x3bc;m to 20 &#x3bc;m, respectively, and the filler is contained in the base material at the rate between or equal to 0.1 parts by weight to 3.0 parts by weight, per 100 parts by weight of the base material. Since the filler diffuses the passing light adequately, even though the reflector is provided with a bend, local disorder in light distribution (orientation) characteristic caused by the bend can be suppressed.

Light emitting device

An electronic flash apparatus includes a flash device, a light emitting device which is different from the flash device, and a concave reflector configured to reflect light beams from the flash device and the light emitting device. The concave reflector includes a flash-device reflecting surface configured to reflect the light beams from the flash device and a light-emitting-device reflecting surface configured to reflect the light beams from the light emitting device. The flash device is disposed inside the concave reflector, and the light emitting device is disposed outside the concave reflector. The light-emitting-device reflecting surface is disposed at a position where a light path of the light beams from the flash device does not exist. The apparatus further includes a light guiding member configured to guide the light beams from the light emitting device to the light-emitting-device reflecting surface positioned inside the concave reflector.

Electronic flash apparatus

Growing community of inventors

Tokyo, Japan

Eiichi Sugimoto