Imaging device and image recording and playback system

Abstract

High-quality three-dimensional images are picked up with the proper parallax magnitude and minimal chromatic aberration. Light from an imaging subject is split to the left and right by mirrors (141 and 143) in the range where the light diffused from the single point of the subject is parallel light. Light seen from the right facing the subject is reflected by the mirror (141) and then reflected by another mirror (142). Light seen from the left facing the subject is reflected by the mirror (143) and then reflected by another mirror (144). The right-side light reflected by the mirror (142) enters an imaging lens (151). The light incident to the imaging lens (151) forms an image on the light-receiving surface of an image pickup element (171). The left-side light reflected by the mirror (144) enters an imaging lens (152). The light incident to the imaging lens (152) forms an image on the light-receiving surface of an image pickup element (172). Thus, high-quality three-dimensional images are picked up with the proper parallax magnitude and minimal chromatic aberration.

Description

technical field [0001] The present invention relates to an imaging device and a video recording and reproducing system, and more particularly to an imaging device and a video recording and reproducing system that capture an object to be photographed as a stereoscopic image. Background technique [0002] Conventionally, a system has been proposed that simultaneously captures a common subject with two left and right cameras, and displays a stereoscopic image by simultaneously outputting the left and right images. However, in the case of using these two cameras, the size of the device becomes impractical. In addition, the baseline length (baseline) between the two cameras, which is the distance between the eyes of a stereo camera, is not affected by the zoom ratio of the lens, and is mostly about 65 mm, which is equivalent to the distance between the eyes of a person. In this case, the parallax of the zoomed-in video increases, and the visual system is forced to perform inform...

AI Technical Summary

Problems solved by technology

However, in a prism-type stereo camera, in order to eliminate the overlapping portion of the left and right optical images, it is necessary to form a hood on the prism, which complicates the control at the time of capturing a stereo image.

Also, since the prism utilizes the refraction of the optical axis, and the refractive index is different for each wavelength of light, there is a problem of chromatic aberration

In addition, in the above-mentioned conventional technology, in the path from the optical system to the imaging element, the optical path is bent at places other than the region where the light is parallel light, so when the zooming operation of the photographing lens is performed, the zoom ratio is linked to The optical axis of the ground changes, and there is a problem that the positions of the images on the two imaging elements move relative to each other

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