JPS60128302U - Optical low-pass filter for solid-state image sensors - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の固体撮像素子用光学的低域フィルタの説
明図、第２図は第４図の固体撮像素子用光学的低域フィ
ルタの分離方向角と分離中の説明図、第３図は固体撮像
素子の拡大模式図、第４図は本考案に係る固体撮像素子
用光学的低域フィルタの一実施例の斜視図である。 １．２・・・水晶フィルタ、３・・・画素、４・・・固
体撮像素子、５・・・水晶フィルタ。Fig. 1 is an explanatory diagram of a conventional optical low-pass filter for solid-state imaging devices, Fig. 2 is an explanatory diagram of the separation direction angle and separation of the optical low-pass filter for solid-state imaging devices in Fig. 4, and Fig. 3 4 is an enlarged schematic diagram of a solid-state image sensor, and FIG. 4 is a perspective view of an embodiment of an optical low-pass filter for a solid-state image sensor according to the present invention. 1.2...Crystal filter, 3...Pixel, 4...Solid-state image sensor, 5...Crystal filter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固体撮像素子の前面に挿入されて受像画面の細部再現性
を改善する複屈折板を使用した光学的低域フィルタであ
って、上記複屈折板は分離方向が零度から９０度の範囲
の所定角度に設定されている一枚の水晶フィルタである
ことを特徴とする固体撮像素子用光学的低域フィルタ。An optical low-pass filter using a birefringent plate that is inserted in front of a solid-state image sensor to improve the reproduction of details on an image receiving screen, and the birefringent plate is separated at a predetermined angle in the range of 0 degrees to 90 degrees. An optical low-pass filter for a solid-state image sensor, characterized in that it is a single crystal filter set to .