Face imaging apparatus



<P>PROBLEM TO BE SOLVED: To take a face image with the same brightness and at the same distance at any time even in the case a photographing date is varied like before and after the operation. <P>SOLUTION: A distance from an imaging camera (2) to the face as an object can be kept constant while holding the face as the object on the focal point of the imaging camera (2) by a face holder 4, and light emitted from an illumination light source (20) is transmitted through a semi-cylindrical concave light diffusion plate (5) arranged nearly concentric to the face held by the face holder (4) and a conical light diffusion plate (7) whose cross section gradually extends from the imaging camera (2) toward the face imaging opening part (6) formed in the concave light diffusion plate (5), and then, the light is uniformly diffused on the front side, then, the front side of the face and the cheeks which are likely to be shaded can be illuminated with the uniform brightness. <P>COPYRIGHT: (C)2005,JPO&NCIPI
【課題】 施術前後のように撮像日時が異なる場合でも、常に、同じ明るさで、同じ距離で顔の画像を取り込むことができるようにする。 【解決手段】 被写体となる顔をフェースホルダ(4)により撮像カメラ(2)の合焦点に保持させて撮像カメラ(2)から顔までの距離を一定に維持することができ、照明光源(20)から照射された光が、フェースホルダ(4)で保持される顔に対して略同心状に位置するように配された半円筒状の凹面状光拡散板(5)と、撮像カメラ(2)から凹面状光拡散板(5)に形成された顔面撮像用開口部(6)に向って断面積が徐々に拡がる錐面状光拡散板(7)を透過してその正面側にムラなく均一に拡散され、顔の正面も陰になりやすい頬も均一な明るさで照明できるようにした。 【選択図】図1




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