| 摘要 |
PROBLEM TO BE SOLVED: To provide a photographic device equipped with a light emitting part capable of adjusting a radiation field with high precision. SOLUTION: When a zoom switch is operated to a WIDE side, an arc tube and a reflector are moved forward, and two reflection side plates 112a and 112b are disposed so as to cover Fresnel lenses 1021a and 1021b located on both ends of a protector. Light emitted laterally from the arc tube 110 is reflected by the two reflection side plates 112a and 112b, and the light is guided toward a central portion of the protector. Thereby, a radiation field suitable for a WIDE field angle is formed. When a zoom switch is operated to a TELE side, the two reflection side plates are inclined so as to expose the Fresnel lenses located on both ends of the protector, the arc tube and the reflector are retreated, and all the light emitted laterally from the arc tube is guided to the Fresnel lenses. Thereby, a radiation field suitable for a TELE field angle is formed. COPYRIGHT: (C)2007,JPO&INPIT
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