Fisheye lens
A fisheye lens and lens technology, applied in the direction of optical components, optics, instruments, etc., can solve problems such as difficult to meet the growing demand, and achieve the effect of high-quality imaging quality and large field of view
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[0041] Considering the preparation process and mass production requirements of the fisheye lens, in the embodiment of the present invention, optionally, the first lens is a spherical lens, and the second lens, the fourth lens, the fifth lens, and the sixth lens are aspheric lenses, The third lens is a spherical lens or an aspheric lens. Wherein, on the basis of using a glass lens for the first lens, setting it as a spherical lens is more convenient for preparation and mass production.
[0042] Specifically, optionally, the surface of the lens adjacent to the object plane side is the object side surface, and the surface of the lens adjacent to the image surface side is the image side surface; the object side surface of the first lens 11 is a convex surface, and the image side surface is a concave surface; the object surface of the second lens 12 The side is concave, and the image side is convex; the object side of the third lens 13 is convex, and the image is convex; the object...
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Abstract
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