Optical lens and imaging apparatus

An optical lens and lens technology, which is applied in optics, optical components, instruments, etc., can solve problems such as the impact of resolution, limited installation space, and degradation of lens temperature performance, and achieve high resolution and shorten the optical length.

Active Publication Date: 2018-10-16
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Under normal circumstances, in order to meet the needs of miniaturization of optical lenses, the solution of compressing the total optical length of the lens is usually adopted, but the resolution will be significantly affected
At the same time, the imaging quality can also be improved by increasing the use of aspheric lenses, but the cost of glass aspheric lenses is relatively high, and excessive use of pla

Method used

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  • Optical lens and imaging apparatus
  • Optical lens and imaging apparatus
  • Optical lens and imaging apparatus

Examples

Experimental program
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Example

[0078] First embodiment

[0079] Such as figure 1 As shown, the optical lens according to the first embodiment of the present invention includes sequentially from the object side to the image side: a meniscus-shaped first lens L1 with negative refractive power, a first surface S1 convex toward the object side, and a concave The second surface S2 on the image side; the second meniscus lens L2 with negative refractive power, the first surface S3 convex toward the object side and the second surface S4 concave toward the image side; the double lens with positive refractive power The third lens L3 in a convex shape has a first surface S5 convex to the object side and a second surface S6 convex to the image side; a stop STO; a fourth lens L4 and a fifth lens L5 cemented with each other, of which the fourth lens L4 is a biconvex shape with positive refractive power, with a first surface S8 that is convex toward the object side and a second surface S9 that is convex toward the image side...

Example

[0090] Second embodiment

[0091] Such as figure 2 As shown, the optical lens according to the second embodiment of the present invention includes sequentially from the object side to the image side: a meniscus-shaped first lens L1 with negative refractive power, a first surface S1 convex toward the object side, and a concave The second surface S2 on the image side; the second lens L2 with a biconcave shape with negative refractive power, a first surface S3 concave toward the object side and a second surface S4 concave toward the image side; a double lens with positive power The third lens L3 in a convex shape has a first surface S5 convex to the object side and a second surface S6 convex to the image side; a stop STO; a fourth lens L4 and a fifth lens L5 cemented with each other, of which the fourth lens L4 is a biconvex shape with positive refractive power, with a first surface S8 convex toward the object side and a second surface S9 convex toward the image side. The fifth len...

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Abstract

The invention provides an optical lens and an imaging apparatus. The optical lens sequentially comprises, from an object side to an image side, a first lens which is a crescent lens with negative focal power and of which the object side surface is a convex surface, and the image side surface is a concave surface; a second lens which is provided with negative focal power, and of which the image side surface is a concave surface; a third lens which is a double-convex lens with positive focal power, and of which the object side surface is a convex surface, and the image side surface is a convex surface, wherein the absolute value of the ratio of the radius of the object side surface to the radius of the image side surface is larger than or equal to 18; a fourth lens, a fifth lens glued with the fourth lens; and a sixth lens which is provided with positive focal power. According to the optical lens and the imaging apparatus, high resolution can be obtained while the miniaturization of theoptical lens is retained.

Description

technical field [0001] The invention relates to the field of optical lens and imaging equipment, in particular to the optical lens and imaging equipment capable of obtaining high resolution while keeping the lens miniaturized. 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] With the development of science and technology, the resolution requirements of optical lenses are getting higher and higher, from the original megapixels to the direction of tens of millions of pixels, and high-pixel lenses are becoming more and more popular. [0004] In addition, with the popularization of mobile devices, more and more small-sized imaging devices need to be applied, for example, imaging devices applied to mobile phones have very high requirements for small sizes. [0005...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/006G02B13/18
Inventor 王东方姚波谢前森
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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