JP2003143613A5 - - Google Patents
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- JP2003143613A5 JP2003143613A5 JP2001337951A JP2001337951A JP2003143613A5 JP 2003143613 A5 JP2003143613 A5 JP 2003143613A5 JP 2001337951 A JP2001337951 A JP 2001337951A JP 2001337951 A JP2001337951 A JP 2001337951A JP 2003143613 A5 JP2003143613 A5 JP 2003143613A5
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- Prior art keywords
- pass filter
- angle
- image sensor
- optical low
- false color
- Prior art date
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Claims (4)
前記撮像素子に入射する被写体光に対する除去帯域が互いに４５°の角度をなす二枚の複屈折性光学素子を組み合わせた光学ローパスフィルタとを有することを特徴とする撮像装置。An image sensor in which a plurality of types of color filters are arranged at equal pitches both horizontally and vertically;
An image pickup apparatus comprising: an optical low-pass filter that combines two birefringent optical elements whose removal bands with respect to subject light incident on the image pickup element form an angle of 45 ° with each other.
前記光学ローパスフィルタは、除去帯域が画素の水平配列に対してそれぞれ２２．５°の角度をなし、かつ互いに４５°の角度をなす二枚の複屈折性光学素子を組み合わせた構成であることを特徴とする請求項１記載の撮像装置。A false color reduction circuit that reduces the false color of the horizontal high-frequency portion of the signal output from the image sensor;
The optical low-pass filter has a configuration in which two birefringent optical elements each having a removal band of an angle of 22.5 ° with respect to a horizontal arrangement of pixels and an angle of 45 ° to each other are combined. The imaging apparatus according to claim 1, wherein:
前記光学ローパスフィルタは、除去帯域が画素の垂直配列に対してそれぞれ２２．５°の角度をなし、かつ互いに４５°の角度をなす二枚の複屈折性光学素子を組み合わせた構成であることを特徴とする請求項１記載の撮像装置。A false color reduction circuit that reduces the false color of the high-frequency part in the vertical direction of the signal output from the image sensor;
The optical low-pass filter has a configuration in which two birefringent optical elements whose removal bands form an angle of 22.5 ° with respect to the vertical arrangement of pixels and form an angle of 45 ° with each other are combined. The imaging apparatus according to claim 1, characterized in that:
前記撮像素子に入射する被写体光に対して二枚の複屈折性光学素子を組み合わせた光学ローパスフィルタと、An optical low-pass filter that combines two birefringent optical elements for subject light incident on the image sensor;
当該光学ローパスフィルタを通過した被写体光に応じて、前記撮像素子より出力された信号の高周波部分の偽色を低減する偽色低減回路とを有することを特徴とする撮像装置。An image pickup apparatus comprising: a false color reduction circuit that reduces false colors in a high-frequency portion of a signal output from the image pickup device in accordance with subject light that has passed through the optical low-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001337951A JP4027079B2 (en) | 2001-11-02 | 2001-11-02 | Imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001337951A JP4027079B2 (en) | 2001-11-02 | 2001-11-02 | Imaging device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003143613A JP2003143613A (en) | 2003-05-16 |
| JP2003143613A5 true JP2003143613A5 (en) | 2005-07-07 |
| JP4027079B2 JP4027079B2 (en) | 2007-12-26 |
Family
ID=19152516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001337951A Expired - Fee Related JP4027079B2 (en) | 2001-11-02 | 2001-11-02 | Imaging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4027079B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4551307B2 (en) * | 2005-10-13 | 2010-09-29 | 日本放送協会 | Single-plate color imaging device |
| JP5446521B2 (en) * | 2009-07-06 | 2014-03-19 | 株式会社リコー | Imaging device |
-
2001
- 2001-11-02 JP JP2001337951A patent/JP4027079B2/en not_active Expired - Fee Related
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