ホログラフィ入力に適したインテグラルフォトグラフィ撮影のための複数要素画像の重複記録低減に関する検討

摘要

We describe how to reduce interference between elemental images suitable for production of holograms during integral photography pickup that uses a lens array composed of typical convex lenses used as elemental lenses. We propose the use of an optical system that consists of both a field lens and an aperture that is located in the focal plane of the field lens. The system is arranged between the lens array and the camera used for taking elemental images. Diffraction patterns in the focal plane of the field lens of beams going through elemental lenses were calculated with the Fresnel-Kirchhoff diffraction formula. Consequently, we clarified that the system was able to limit the incident angle of the beam passing through the elemental lenses with the size of the aperture located in the focal plane, fn addition, we carried out an optical experiment and proved that using the optical system reduced the interference between the elemental images.%近年，自然でリアルな表現が可能な立体映像を放送やコrnミュニケーションなどの情報伝達手段に適用させる検討rnが進められている．立体表示にほ多数の方式があるが，そrnの一方式であるホログラフィは，実際に物体が存在するrn場合と同じ光波場を再現することで空間に像を再生する方rn式であり，人間の視覚機能に負担を掛けない立体表示方式rnと言われている．