Glass-plastic mixed lens

A lens and lens technology, applied in the field of drone lenses, can solve the problems of inability to meet the requirements of drone lenses, poor thermal stability, distortion effects, etc., to improve imaging clarity, facilitate molding and assembly, and optimize aberrations. Effect

Pending Publication Date: 2018-02-06
辽宁中蓝光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing drone lenses use a large number of glass materials, and lenses using spherical glass materials have poor image quality, low resolution, and serious distortion effects
Compared with glass materials, lenses made of plastic materials have poor thermal stability, and cannot meet the needs of drone lenses.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1, refer to Table 1 and Table 2 to implement the design parameters of the glass-plastic hybrid lens: Table 1 is the design parameter table of the lens of the present invention.

[0058]

[0059]

[0060] Table 2 is a table of aspheric coefficients of the lens of the present invention.

[0061]

[0062]

[0063] Such as image 3 Shown is the MTF transfer function graph (optical transfer function) of the glass-plastic hybrid lens of the present invention, which can comprehensively reflect the imaging quality of the system. The better the quality, the higher the definition of the lens of the present invention, at 80lp / mm, the MTF>0.72 in the field of view of 0.9.

[0064] Such as Figure 4a As shown, different curves represent different wavelengths, S represents sagittal field curvature, and T represents meridian field curvature. The difference between the two is the astigmatism of the system. Astigmatism and field curvature are important aberratio...

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PUM

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Abstract

The invention provides a glass-plastic mixed lens comprising a first lens, a second lens, an aperture diaphragm, a third lens, a fourth lends, a 5th lens, a 6th lens and an optical filter arranged insequence from the object side to the image side; the 1st to 4th lenses respectively refer to a spherical surface glass lens; the 5th and 6th lenses are non-spherical surface plastic lenses; the firstlens refers to a meniscus lens with a negative focal power and a convex object surface; the second lens is a meniscus lens with a positive focal power and a convex object surface; the third lens is adual-convex lens with a positive focal power; the 4th lens is a dual-concave lens with a negative focal power; the 5th lens is a lens with a positive focal power and a convex image surface; the 6th lens is a dual-concave lens with a negative focal power. The glass-plastic mixed lens employs two non-spherical surface plastic lenses to improve the imaging sharpness, thus reducing the aberration influences, obtaining better image parsing ability, and satisfying unmanned plane outdoor aerial photography needs.

Description

technical field [0001] The invention belongs to the technical field of drone lenses, and in particular relates to a glass-plastic hybrid lens. Background technique [0002] With the continuous development of drone technology, the demand for drone footage is increasing. Existing drone lenses use a large number of glass materials, and lenses made of spherical glass materials have poor image quality, low resolution, and serious distortion effects. Compared with glass materials, lenses made of plastic materials have poor thermal stability, and cannot meet the needs of drone lenses. Contents of the invention [0003] The embodiment of the present invention provides a glass-plastic hybrid lens. The lens structure is simple, which is convenient for molding and assembly. The glass-plastic hybrid lens has a lighter overall weight, which can reduce the overall weight of the drone and improve the endurance of the drone. [0004] The invention provides a glass-plastic hybrid lens, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B1/04
CPCG02B13/0045G02B13/006G02B13/18G02B1/041
Inventor 司丛芳邱小雄
Owner 辽宁中蓝光电科技有限公司
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