JP4661606B2 - 屈曲光学系及び電子撮像装置 - Google Patents
屈曲光学系及び電子撮像装置 Download PDFInfo
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- JP4661606B2 JP4661606B2 JP2006011341A JP2006011341A JP4661606B2 JP 4661606 B2 JP4661606 B2 JP 4661606B2 JP 2006011341 A JP2006011341 A JP 2006011341A JP 2006011341 A JP2006011341 A JP 2006011341A JP 4661606 B2 JP4661606 B2 JP 4661606B2
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- optical system
- image
- bending optical
- entrance pupil
- imaging
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Description
(1)量子効率…光電面で光が電子に変わる効率(%、mA/W)
(2)感度(ゲイン)…電子と電流比の調整で決まる→何倍にも調整できるが、感度を上げるとノイズも一緒に増えるためS/N比が上がるわけではない。
(1)Nr:ランダムノイズ…感度に比例する。温度の影響小。露光時間と無関係。
Claims (5)
- 屈曲光学部と、入射瞳位置が同一位置にある複数の結像光学系と、画像処理装置と、を有し、前記屈曲光学部は、前記入射瞳位置に置かれて前記入射瞳を分割し、前記結像光学系は、分割された前記入射瞳を通過した分割された光を、それぞれ複数の撮像素子の複数の結像面上に結像させ、前記画像処理装置は、前記複数の結像面上に結像した像を画像処理し、前記複数の結像面に結像した像の対応する画素同士を比較することにより、ランダムノイズを除去する機能を有することを特徴とする屈曲光学系。
- 前記画像処理装置は、前記撮像素子の非有効画素からの出力を入力して、その入力値に基づき、熱ノイズを除去する機能を有することを特徴とする請求項1に記載の屈曲光学系。
- 前記画像処理装置は、前記分割された入射瞳の非等方性に起因して生じる解像度の異方性を補正するものであることを特徴とする請求項1または2に記載の屈曲光学系。
- 前記屈曲光学部と前記撮像素子の間に、前記分割された入射瞳の非等方性に起因して生じる解像度の異方性を補正する光学系を有することを特徴とする請求項1に記載の屈曲光学系。
- 請求項1から請求項4のうち、いずれか1項に記載の屈曲光学系を有することを特徴とする電子撮像装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006011341A JP4661606B2 (ja) | 2006-01-19 | 2006-01-19 | 屈曲光学系及び電子撮像装置 |
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JP2006011341A JP4661606B2 (ja) | 2006-01-19 | 2006-01-19 | 屈曲光学系及び電子撮像装置 |
Publications (2)
Publication Number | Publication Date |
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JP2007194925A JP2007194925A (ja) | 2007-08-02 |
JP4661606B2 true JP4661606B2 (ja) | 2011-03-30 |
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JP2006011341A Expired - Fee Related JP4661606B2 (ja) | 2006-01-19 | 2006-01-19 | 屈曲光学系及び電子撮像装置 |
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JP (1) | JP4661606B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9398264B2 (en) * | 2012-10-19 | 2016-07-19 | Qualcomm Incorporated | Multi-camera system using folded optics |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115112A (ja) * | 1984-07-02 | 1986-01-23 | Canon Inc | 焦点検出装置 |
JPH06202006A (ja) * | 1992-12-28 | 1994-07-22 | Olympus Optical Co Ltd | 立体視硬性内視鏡 |
JPH08220449A (ja) * | 1995-02-15 | 1996-08-30 | Asahi Optical Co Ltd | 立体視内視鏡 |
JP2003116064A (ja) * | 2001-10-03 | 2003-04-18 | Olympus Optical Co Ltd | 撮像装置 |
JP2004357135A (ja) * | 2003-05-30 | 2004-12-16 | Nikon Corp | 電子カメラの暗電流補正回路 |
-
2006
- 2006-01-19 JP JP2006011341A patent/JP4661606B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115112A (ja) * | 1984-07-02 | 1986-01-23 | Canon Inc | 焦点検出装置 |
JPH06202006A (ja) * | 1992-12-28 | 1994-07-22 | Olympus Optical Co Ltd | 立体視硬性内視鏡 |
JPH08220449A (ja) * | 1995-02-15 | 1996-08-30 | Asahi Optical Co Ltd | 立体視内視鏡 |
JP2003116064A (ja) * | 2001-10-03 | 2003-04-18 | Olympus Optical Co Ltd | 撮像装置 |
JP2004357135A (ja) * | 2003-05-30 | 2004-12-16 | Nikon Corp | 電子カメラの暗電流補正回路 |
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JP2007194925A (ja) | 2007-08-02 |
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