optical lens

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of high cost and large deviation of high and low temperature imaging, and achieve the effects of good stability, small front end diameter and low cost

Active Publication Date: 2022-01-25
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding molded lenses to the basic structure is too costly, so plastic aspheric surfaces are generally added
However, due to the characteristics of the plastic itself, when too many plastic lenses are used, there will be a problem of excessive high and low temperature imaging deviation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Refer to the following figure 1 An optical lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of the optical lens according to Embodiment 1 of the present application is shown.

[0068] Such as figure 1 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0069] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is convex, and the image side S2 is concave.

[0070] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0071] The third lens L3 is a biconvex lens with positive refractive power, and its object side S5 and image side S6 are both convex.

[0072] The fourth lens L4 is a biconcave lens w...

Embodiment 2

[0091] Refer to the following figure 2 An optical lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. figure 2 A schematic structural view of the optical lens according to Embodiment 2 of the present application is shown.

[0092] Such as figure 2 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0093] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is convex, and the image side S2 is concave.

[0094] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0095] The third lens L3 is a biconvex lens w...

Embodiment 3

[0112] Refer to the following image 3 An optical lens according to Embodiment 3 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown.

[0113] Such as image 3 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0114] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is convex, and the image side S2 is concave.

[0115] The second lens L2 is a meniscus lens with negative refractive power, the object side S3 is convex, and the image side S4 is concave.

[0116] The third lens L3 is a biconvex lens wi...

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PUM

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Abstract

The present application discloses an optical lens. The optical lens may include: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side along the optical axis. and seventh lens. Wherein, the first lens can have negative refractive power, its object side is convex, and the image side is concave; the second lens can have negative refractive power, its object side is convex, and the image side is concave; the third lens can have positive optical power. The fourth lens may have negative power and its image side is concave; and the seventh lens may have positive power and its object and image sides are convex. According to the optical lens of the present application, at least one beneficial effect of miniaturization, high resolution, low cost, small diameter at the front end, and good stability of resolution capability under high and low temperatures can be realized.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including seven lenses. Background technique [0002] The development of vehicle lens has reached a critical moment. The market has higher and higher requirements for the resolution of vehicle lenses. Wide-angle lenses commonly used in the market can achieve high resolution, such as 2M / 4M or even 8M / 12M. It is more difficult to meet the small size and low cost of the previous foundation while improving the resolution. Adding molded lenses to the infrastructure is cost-prohibitive, so plastic aspherics are typically added. However, due to the characteristics of the plastic itself, when too many plastic lenses are used, there will be a problem of excessive high and low temperature imaging deviation. Due to the harsh actual application conditions of vehicle-mounted lenses, it is extremely important to improve the stability of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 姚波陈雨曦王东方
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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