Hamamatsu-Photonics K.k.

Kazuhito Kawai

Tetsuya Osajima

Moriyuki Ito

A light emitting end face side front end part of an optical fiber bundleis covered by a sleeve memberand an emitting part outer cover. A glass rod holding member, which holds a glass rod, is mounted to emitting part outer cover. Glass rodis fixed to glass rod holding memberby means of positioning pinsand a light incidence end facethereof opposes a light emitting end faceof optical fiber bundle. A light emitting end faceof glass rodhas a rectangular shape. The light emitting from light emitting end faceis made uniform in illuminance across the entirety of its cross section and the cross section thereof is shaped to a rectangular shape in the process of being propagated while being totally reflected at the boundary surface of glass rod

Light guiding device

The present invention comprises a discharge lamp (,) for emitting light; a cold mirror (,), having an opening portion, for reflecting the light emitted from the discharge lamp; a reflecting mirror (,), located on the opening portion side of the cold mirror, for reflecting the light reflected by the cold mirror; a light-shielding drum (,) having a light emission port (,) for emitting the light reflected by the reflecting mirror; a stepping motor,for driving the reflecting mirror and the light-shielding drum to rotate about an optical axis of the discharge lamp; rotational angle detecting means (,) for detecting a rotational angle of the reflecting mirror and the light-shielding drum; and control means (,) for controlling, according to the rotational angle detected by the rotational angle detecting means, the rotational driving of the reflecting mirror and the light-shielding drum (,) caused by the stepping motor,wherein any of a plurality of irradiation ports is selectively irradiated through the light emission port of the light-shielding drum with the light reflected by the reflecting mirror.

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Hamamatsu, Japan

Kazuhito Kawai