Lens of digital camera

A digital camera and lens technology, applied in optics, instruments, optical components, etc., can solve the problems of low resolution of digital camera lenses and cannot meet the requirements of high-resolution lenses, etc., to ensure imaging effects, stable imaging quality, and resolution. high rate effect

Inactive Publication Date: 2006-07-05
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the digital camera lens can meet the imaging requirements, the resolution of the digital camera lens is too low to meet the requirements of the high-resolution lens

Method used

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  • Lens of digital camera
  • Lens of digital camera
  • Lens of digital camera

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Experimental program
Comparison scheme
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Embodiment Construction

[0018] see figure 1 , The digital camera lens of the present invention includes a first lens 1 , a second lens 2 , a third lens 3 and a parallel plate 4 sequentially from the object side to the image side. Where line O represents the optical axis of lens 10, Z obj represents the object space, Z img Representing the image side, the first lens 1 at the object side of the lens during use is the lens that light first contacts. The digital camera lens also includes a diaphragm 6 placed in front of the first lens 1 at the object space position and an image sensing element 5 placed behind the parallel plate at the image space position. The image sensing element 5 includes a Imaging surface 52 .

[0019] The first lens 1 is a double-convex double-sided spherical positive lens, including a first spherical surface 12 and a second spherical surface 14, wherein the first spherical surface 12 is convex to the object side, and the second spherical surface 14 is convex to the image side. ...

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Abstract

The invention discloses a digital camera lens, from the object part, in turn comprising a first lens, a second lens and a third lens, where the first lens is a double-convex double-faced spherical positive lens comprising a first spherical surface and a second spherical surface and made of glass; the second lens is a concave-convex double-faced nonspherical negative lens, comprising a first nonspherical surface and a second nonspherical surface and made of plastics, where the first nonspherical surface is a diffracting surface; the third lens is a nonspherical positive lens whose surface is wavy in structure, comprising the third and fourth nonspherical surfaces, and made of plastics. The digital camera lens has good imaging performance and high resolution.

Description

【Technical field】 [0001] The present invention relates to a digital camera lens, in particular to a digital camera lens that can be used in conjunction with a portable electronic device. 【Background technique】 [0002] With the continuous development of science and technology, portable electronic devices such as mobile phones are widely used, and at the same time tend to be light, beautiful and multi-functional. Among them, the camera function is an additional function of the newly developed portable electronic devices in recent years. Mobile phones with digital cameras are more and more favored by users because they can realize the instant shooting function and are easy to use. Because the mobile phone is small in size, the digital camera lens module that needs to be installed in it has a small size. While people are pursuing the miniaturization of digital camera modules for mobile phones, they also hope to have higher imaging quality for the objects they shoot, and the im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B9/16G02B9/14G02B13/18G02B1/04
CPCG02B13/0035G02B27/4211G02B27/0037
Inventor 李俊佑
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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