| 摘要 |
A proximity-type imaging device includes an image sensor and an angle limiting filter. The image sensor performs photoelectric conversion for light transmitted from a subject using plural pixels, so as to capture the subject. The angle limiting filter includes a transparent glass substrate and a light shielding film which is formed with openings having one-to-one correspondence with the pixels and which is provided on the glass substrate. The angle limiting filter is disposed on the image sensor and limits an incidence angle of light incident to the image sensor to such an angle range that the light is incident from each opening to the corresponding pixel. The condition L≥T 1 ( n 1 2 - 1 ) 1 / 2 is satisfied, where n1 denotes a refractive index of the substrate, T1 denotes a thickness of the substrate, and L denotes a shortest distance between a contour of one opening and a contour of the pixel corresponding to an opening adjacent.
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