APODIZATION FILTER AND MANUFACTURING METHOD

To provide an inexpensive filter capable of being attached to a front face of a photographing camera lens, the filter capable of forming excellent blur effect in photographing, and the filter being an apodization filter for realizing light transmissivity of sequentially 100% to 0% from a center towa...

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Bibliographische Detailangaben
1. Verfasser: MORIMOTO YOSHINOBU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide an inexpensive filter capable of being attached to a front face of a photographing camera lens, the filter capable of forming excellent blur effect in photographing, and the filter being an apodization filter for realizing light transmissivity of sequentially 100% to 0% from a center toward a periphery.SOLUTION: An inexpensive filter can be provide by forming a circular gradation image configured with fine particle dots by using image creation software, and by forming more ideal transmissivity by applying the image in a manner of reduction photographing on a high resolution glass dry plate by which an integrated circuit or the like is manufactured.SELECTED DRAWING: Figure 3 【課題】写真撮影において良質なボケ効果を形成出来る中心から周辺に向けて光の透過率を順次100%〜0%を実現するアポダイゼーションフイルターで撮影カメラレンズ前面に装着可能な安価なフイルターを提供する。【解決手段】画像作成ソフトを利用して微粒子ドットで構成されたた円形グラデーション画像を作成、この画像を集積回路などを製造する高解像力ガラス乾板に縮小撮影をすることにより理想的な透過率を形成、安価なフイルターの提供を可能にした。【選択図】図3