Optical lens with large aperture and large image surface
An optical lens, large aperture technology, applied in the field of optical lenses, can solve the problems of poor image quality, insufficient image quality, and blurred photos, and achieve the effects of weight reduction, color reproduction improvement, and high brightness.
Active Publication Date: 2017-04-12
UNION OPTECH
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Problems solved by technology
[0004] At present, the camera lenses of mobile phones generally have the following defects: the aperture generally can only reach the maximum aperture of F2.0, and the size of the image surface can only reach 1 / 3 inch. Not enough profit, the photo becomes very blurry when zoomed in, and the image quality of the photo is poor
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[0033] The present invention will be further described below in conjunction with accompanying drawing:
[0034] An optical lens with a large aperture and a large image surface, which sequentially includes from the object side to the image side:
[0035] The first lens 1, the first lens 1 is a positive focal length lens, the surfaces facing the image side and the object side are both hyperbolic aspheric surfaces, and the surface facing the object side is a concave surface, and the surface facing the image side is a convex surface;
[0036] The second lens 2, the second lens 2 is a negative focal length lens, the surfaces facing the image side and the object side are both hyperbolic aspheric surfaces, and the surface facing the object side is a convex surface, and the surface facing the image side is a concave surface;
[0037] The third lens 3, the third lens 3 is a positive focal length lens, the surfaces facing the image side and the object side are both hyperbolic aspheric s...
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The invention discloses an optical lens. The optical lens includes a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens. Two sides of the positive focal length of the first lens are hyperbolic aspheric planes, the plane facing an object side is a concave plane, and the plane facing an image side is a convex plane. Two sides of the negative focal length of the second lens are hyperbolic aspheric planes, the plane facing the object side is a convex plane, and the plane facing the image side is a concave plane. Two sides of the positive focal length of the third lens are hyperbolic aspheric planes, and the plane facing the object side is a convex plane. The fourth lens has the negative focal length, and two sides of the fourth lens are both hyperbolic aspheric concave planes. Two sides of the positive focal length of the fifth lens are hyperbolic aspheric planes, and the plane facing the object side is a convex plane. Two sides of the negative focal length of the sixth lens are hyperbolic aspheric planes, the plane facing the object side is a concave plane, and the plane facing the image side is a convex plane. The seventh lens has the positive focal length, the plane facing the image side is a hyperbolic aspheric concave plane, the plane facing the object side is an oblate aspheric plane, and both the planes are convex planes. Two sides of the negative focal length of the eighth lens are hyperbolic aspheric planes, and the plane facing the object side is a concave plane. The optical lens has a large aperture and a large image plane.
Description
[0001] 【Technical field】 [0002] The invention relates to an optical lens, more specifically to an optical lens with large aperture and large image surface. [0003] 【Background technique】 [0004] At present, the camera lenses of mobile phones generally have the following defects: the aperture generally can only reach the maximum aperture of F2.0, and the size of the image surface can only reach 1 / 3 inch. Not enough profit, the photo becomes very blurry when zoomed in, and the image quality of the photo is poor. [0005] Therefore, the present invention just produces based on above deficiency. [0006] 【Content of invention】 [0007] The object of the present invention is to overcome the deficiencies of the prior art and provide a large-aperture and large-image-surface optical lens with a simple structure, an aperture that can reach F1.2, and an image surface that can reach 1 inch. The optical lens can solve the needs of clear shooting in low-light environment and high-res...
Claims
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IPC IPC(8): G02B13/18G02B13/00G02B1/04
CPCG02B1/041G02B13/0045
Inventor 肖明志
Owner UNION OPTECH