compound eye camera

Abstract

The present invention provides a compound-eye imaging device that can effectively prevent crosstalk, is small and thin, and can obtain high-quality images. If the image side surface (S4a) is the first lens final surface, and the image side surface (S4b) adjacent to it is the second lens final surface, the stray light aperture stop (SH) is formed to satisfy the following conditional expression, A / 9<(R / 2)<(A / 2‑Yr1)×d1 / FFL+Yr1(1)A / 9<(R / 2)<A‑(Yr2‑d2 / tanθ2)(2), where, A: The distance between the optical axes of the final surface of the first lens and the final surface of the second lens (mm), Yr1: The effective radius of the final surface of the first lens (mm), Yr2: The effective radius of the final surface of the second lens (mm), R: The opening length of the stray light aperture diaphragm in the direction orthogonal to the optical axis of the single-eye optical system (mm), FFL: The distance from the lens surface edge of the final surface of the first lens to the optical axis direction of the central beam imaging point (mm ), d1: the distance from the lens surface edge of the final surface of the first lens to the optical axis direction of the stray light aperture diaphragm (mm), d2: the light from the lens surface edge of the final surface of the second lens to the stray light aperture diaphragm Distance in the axial direction (mm), θ2: Maximum surface angle (°) at which the effective diameter of the final surface of the first lens is 70% or more.

Description

technical field [0001] The present invention relates to a compound eye imaging device that forms an object image on an imaging element using an array lens composed of a plurality of lenses. Background technique [0002] In recent years, a compound eye imaging device has been developed using a technology that uses a plurality of monocular optical systems configured with different optical axes on a CCD (Charged Coupled Device: Charge Coupled Device) type image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor. A plurality of object images are formed on the imaging surface of a solid-state imaging element such as a complementary metal oxide semiconductor (CMOS) image sensor, and image signals corresponding to each object image are image-processed to be synthesized and reconstructed into one image. As one type of such a compound-eye imaging device, there is a device using super-resolution technology, which uses multiple monocular optical systems to divide t...

AI Technical Summary

Problems solved by technology

However, when using each monocular optical system to form an object image, there are the following problems: on the imaging surface of the imaging device, it is difficult to completely divide the imaging area corresponding to each monocular optical system, and the ambient light in the effective imaging area of ​​some monocular optical systems Invades the effective imaging area of ​​the adjacent monocular optical system and easily generates crosstalk as noise

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