JPWO2019234504A5

JPWO2019234504A5 -

Info

Publication number: JPWO2019234504A5
Application number: JP2020567616A
Authority: JP
Publication date: 2022-01-12
Anticipated expiration: 2039-06-07

Claims

A camera module with a modulation transfer function (MTF) tuned to the green to red spectral range:
With a lens system configured by giving priority to the green to red spectral range over the blue to purple spectral range;
With an imager containing multiple pixel sensors arranged in a matrix;
A color filter matrix arranged between the lens system and the imager, wherein the color filter matrix has a plurality of filter elements, each of the plurality of filter elements of the plurality of pixel sensors of the imager. Corresponding to each position, the plurality of filter elements includes a color filter matrix containing more yellow filter elements than red filter elements;
Equipped with
The imager is configured such that for the lens system the frequency response of the camera module increases for the green to red spectral portion with respect to the blue to purple spectral range .
The camera module.

The color filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
Each submatrix contains two yellow filter elements, one red filter element, and one cyan filter element.
The camera module according to claim 1.

The color filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
The camera module according to claim 1, wherein each submatrix includes three yellow filter elements and one red filter element.

The color filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
Each submatrix contains two yellow filter elements, one red filter element, and one green filter element.
The camera module according to claim 1.

The filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
Each submatrix contains two yellow filter elements, one red filter element, and one transparent filter element.
The camera module according to claim 1.

The filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
Each submatrix contains two yellow filter elements, one red filter element, and one blue filter element.
The camera module according to claim 1.

The lens system is designed to weight light in the yellow spectral range higher than light in the red and blue spectral range.
The camera module according to claim 1.

The lens system comprises a plurality of optical elements including an assembled optical element comprising two optical subelements joined by optical cement.
The camera module according to claim 1.

At least one of the plurality of optical elements includes an aspherical lens.
The camera module according to claim 8.

The lens system includes a cut filter disposed between the lens system and the color filter matrix.
The cut filter is configured to attenuate light in the ultraviolet spectral range projected onto the color filter matrix and the imager by the lens system.
The camera module according to claim 1.

The cut filter is further configured to attenuate light in the blue to purple spectral range.
The camera module according to claim 10.

10. The camera module of claim 10, wherein the cut filter is further configured to attenuate light in the infrared (IR) spectral range.

A camera module with a modulation transfer function (MTF) tuned to the green to red spectral range:
With a lens system configured by giving priority to the green to red spectral range over the blue to purple spectral range;
With an imager containing multiple pixel sensors arranged in a matrix;
A color filter matrix arranged between the lens system and the imager, wherein the color filter matrix has a plurality of filter elements, each of the plurality of filter elements of the plurality of pixel sensors of the imager. Corresponding to each position, the plurality of filter elements includes a color filter matrix containing more transparent filter elements than a red filter element;
A cut filter arranged between the lens system and the color filter matrix, which is configured to attenuate light in the blue to ultraviolet spectral range projected on the color filter matrix and the imager by the lens system. With a cut filter;
Equipped with
The imager is configured such that for the lens system the frequency response of the camera module increases for the green to red spectral portion with respect to the blue to purple spectral range .
The camera module.

The cut filter is further configured to attenuate light in the infrared (IR) spectral range.
The camera module according to claim 13.

The color filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
13. The camera module of claim 13, wherein each submatrix comprises three transparent filter elements and one red filter element.

The color filter matrix comprises a plurality of 2x2 submatrix that repeats horizontally and vertically across the imager's pixel sensors.
Each submatrix contains two transparent filter elements, one red filter element, and one green filter element.
The camera module according to claim 13.

The lens system is designed to weight light in the yellow spectral range higher than light in the red and blue spectral ranges.
The camera module according to claim 13.

The lens system comprises a plurality of optical elements including an assembled optical element comprising two optical subelements joined by optical cement.
The camera module according to claim 13.

At least one of the plurality of optical elements includes an aspherical lens.
The camera module according to claim 18.