Optical lens

A kind of optical lens and lens technology, applied in the field of optical lens, can solve the problems of large thermal expansion coefficient, blurred image plane out of focus, poor temperature performance, etc., and achieve the effect of good temperature performance, high resolution and low cost

CN109324384AActive Publication Date: 2019-02-12NINGBO SUNNY AUTOMOTIVE OPTECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-02-12

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Abstract

The invention provides an optical lens. The optical lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an imageside. The first lens has negative focal power and a meniscus shape, the object side surface is a convex surface, and the image side surface is a concave surface; the second lens has negative focal power and a meniscus shape, the object side surface is a convex surface, and the image side surface is a concave surface; the third lens and the second lens are bonding lenses, the third lens has positive focal power and a meniscus shape, the object side surface is a convex surface, and the image side surface is a concave surface; the fourth lens has positive focal power and a biconvex shape, the object side surface is a convex surface, and the image side surface is a convex surface; the fifth lens has positive focal power and a biconvex shape, the object side surface is a convex surface, and theimage side surface is a convex surface; and the sixth lens has negative focal power and a meniscus shape, the object side surface is a concave surface, and the image side surface is a convex surface.According to the optical lens provided by the invention, the shapes of the lenses are optimally set, and the focal power of the lenses is reasonably distributed, so that the high-resolution, low-aberration, low-cost and relatively good temperature performance can be realized while the miniaturization of the lens is kept.
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Description

technical field

[0001] The invention relates to the field of optical lenses, in particular to an optical lens with improved imaging performance while maintaining the miniaturization of the lens. Background technique

[0002] Imaging devices such as camera-mounted mobile devices and digital still cameras using, for example, charge-coupled devices (CCD) and complementary metal-oxide semiconductors (CMOS) as solid-state imaging elements are well known.

[0003] In such an imaging device, an optical lens is used to acquire an image of a subject. As more and more electronic devices apply imaging functions, the requirements for optical lenses are also getting higher and higher. For example, the requirements for the resolution of optical lenses are getting higher and higher, from the original megapixels to tens of millions of pixels, and high-pixel lenses are becoming more and more popular.

[0004] For example, the optical lens used in the vehicle field has very high requirement...

Examples

no. 1 example

[0084] like figure 1 As shown, the optical lens according to the first embodiment of the present invention includes in sequence from the object side to the image side: a meniscus-shaped first lens L1 with negative refractive power, a first surface S1 convex to the object side and a concave first surface S1 A second surface S2 on the image side; a meniscus-shaped second lens L2 with negative refractive power, with a first surface S3 convex to the object side and a second surface S4 concave to the image side; a meniscus with positive refractive power The moon-shaped third lens L3, which is a cemented lens with the second transparent L2, has a first surface S4 convex to the object side and a second surface S5 concave to the image side; an aperture stop STO; a biconvex with positive refractive power Shaped fourth lens L4 has a first surface S7 convex to the object side and a second surface S8 convex to the image side; a biconvex fifth lens with positive power has a first surface c...

no. 2 example

[0093] like figure 2 As shown, the optical lens according to the second embodiment of the present invention includes in sequence from the object side to the image side: a meniscus-shaped first lens L1 with negative power, a first surface S1 convex to the object side and a concave first surface S1 A second surface S2 on the image side; a meniscus-shaped second lens L2 with negative refractive power, with a first surface S3 convex to the object side and a second surface S4 concave to the image side; a meniscus with positive refractive power The moon-shaped third lens L3, which is a cemented lens with the second transparent L2, has a first surface S4 convex to the object side and a second surface S5 concave to the image side; an aperture stop STO; a biconvex with positive refractive power Shaped fourth lens L4 has a first surface S7 convex to the object side and a second surface S8 convex to the image side; a biconvex fifth lens with positive power has a first surface convex to ...