Optical imaging lens

An optical imaging lens and lens technology, applied in the field of telephoto lens, can solve the problems of large size, inability to satisfy telephoto, miniaturization and high imaging quality at the same time, and achieve high imaging quality effect

Active Publication Date: 2018-05-15
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This invention relates to an image forming system that uses tiny cameras with many different types of lenses for better performance at shorter distances from their center than usual. By having several lenses arranged properly, these systems have smaller sizes while still providing sharp images over longer periods or even higher levels of detail compared to traditional designs.

Problems solved by technology

The technical problem addressed by this patented technology relates to achieving both excellent optical performance for longer distance photography with smaller sizes while maintaining their ability to capture images from very small distances without sacrificing resolution or image sharpness (microscopic detail).

Method used

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Experimental program
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Effect test

Embodiment 1

[0088] Refer to the following Figure 1 to Figure 2D An optical imaging lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0089] Such as figure 1 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0090] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is convex,...

Embodiment 2

[0117] Refer to the following Figure 3 to Figure 4D An optical imaging 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. image 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0118] Such as image 3 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0119] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its...

Embodiment 3

[0133] Refer to the following Figure 5 to Figure 6D An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0134] Such as Figure 5 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0135] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is conve...

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Abstract

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lensfrom an object side to an image side along the optical axis, wherein the first lens and the second lens respectively have positive focal power; the third lens, the fourth lens, the sixth lens and theseventh lens respectively have positive focal power or negative focal power; the fifth lens has negative focal power, and the surface of the fifth lens at the image side is a concave surface; the surface of the sixth lens at the object side is a convex surface; the adjacent lenses are spaced by air; the maximum angle of HFOV (half field of vision) of the optical imaging lens is smaller than 30 degrees.

Description

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Claims

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Application Information

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Owner ZHEJIANG SUNNY OPTICAL CO LTD
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