High-image-quality minitype optical lens of full plastic lens structure

A technology of plastic lens and optical lens, applied in the field of infrared wide-angle optical lens, can solve the problems of large thickness of lens, low pixel, large size, etc., and achieve the effect of high sensitivity and high sharpness

Active Publication Date: 2013-10-09
UNION OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The currently used touch screen recognition lens generally has such shortcomings: relatively low pixel ratio, large size
The current mainstream camera phones in the market are mainly low-profile lense

Method used

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  • High-image-quality minitype optical lens of full plastic lens structure
  • High-image-quality minitype optical lens of full plastic lens structure
  • High-image-quality minitype optical lens of full plastic lens structure

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention is described in detail below in conjunction with accompanying drawing:

[0022] Such as figure 1 As shown, a high-quality micro-optical lens with an all-plastic lens structure can be used for relatively cheap high-pixel CMOS photosensitive sheets, including a seat 1 and a lens barrel 2 connected to the seat, and the cavity of the lens barrel 2 A pressure ring 3, a first lens 4, and a second lens 5 are sequentially provided in the center from outside to inside, and a spacer ring 6 is arranged between the first and second lenses. The first lens 4 is a negative focal length lens, the first surface 41 facing the object side is an oblate aspheric surface, and the second surface 42 facing the image side is a hyperbolic aspheric surface. The second lens 5 is a positive focal length lens, the first surface 51 facing the object side is a circular aspheric surface, and the second surface 52 facing the image side is a hyperbolic aspheric surface. The shape ...

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PUM

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Abstract

The invention relates to a high-image-quality minitype optical lens of a full plastic lens structure. The high-image-quality minitype optical lens of the full plastic lens structure comprises a supporting base and a lens cone connected to the supporting base. A press ring, a first lens and a second lens are arranged in the cavity of the lens cone in sequence from outside to inside, and a separation ring is arranged between the first lens and the second lens. The first lens is a lens with a negative focus length, the first face, facing an object space, of the first lens is an oblate aspheric face, the second face, facing an image space, of the first lens is a double-curve aspheric face, the second lens is a lens with a positive focus length, the first face, facing the object space, of the second lens is a circular aspheric face, and the second face, facing the image space, of the second lens is a double-curve aspheric face. The high-image-quality minitype optical lens has 2 megapixels, is ultrathin, and can be used for high-sensitivity touch screens with sizes of more than 70-110 inches.

Description

【Technical field】 [0001] The invention relates to an infrared wide-angle optical lens, in particular to a micro-optical lens for high-pixel touch screen identification. 【Background technique】 [0002] The currently used touch screen recognition lenses generally have such disadvantages: relatively low pixels and large external dimensions. The current mainstream camera phones on the market are mainly low-profile lenses with 300,000 pixels and 40-inch screens. Their sensitivity and recognition range are not ideal. They can only be used on touch screens that require less sensitivity and less screens; Generally about 10mm. [0003] The present invention has carried out a large number of improvements in order to overcome the above shortcoming. 【Content of invention】 [0004] The invention overcomes the disadvantages of the prior art and provides an optical lens with 2 million pixels and ultra-thin thickness, which can be used for high-sensitivity and touch screens larger than ...

Claims

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Application Information

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IPC IPC(8): G02B13/18G02B13/06G02B13/00G02B7/02
Inventor 肖明志陆志凤
Owner UNION OPTECH
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