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Portable electronic device and its optical imaging lens

An optical imaging lens and lens technology, which is applied in optics, optical components, installation, etc., can solve problems such as not being able to meet consumer needs and expanding shooting angles, and achieve good optical performance and shorten the length of the lens

Active Publication Date: 2018-01-09
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Abstract
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Problems solved by technology

U.S. publication patents US744361 and US7295386 disclose a four-piece optical imaging lens, the first lens provides the main positive refractive power of the lens itself, and the second lens has negative refractive power to eliminate aberrations, but this configuration is not conducive to shooting The expansion of the angle, so its half field of view is only about 30-35 degrees, which cannot meet the needs of consumers

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  • Portable electronic device and its optical imaging lens
  • Portable electronic device and its optical imaging lens
  • Portable electronic device and its optical imaging lens

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Embodiment Construction

[0099] To further illustrate various embodiments, the present invention provides drawings. These drawings are part of the disclosure content of the present invention, which are mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the manual to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0100] The term "a lens has a positive refractive power (or negative refractive power)" in this specification refers to the positive (or negative) refractive power of the lens on the optical axis calculated by Gaussian optics theory. The image side and object side are defined as the range through which the imaging light passes, where the imaging light includes the ch...

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Abstract

The invention provides a portable electronic device and its optical imaging lens, wherein the optical imaging lens includes a first lens, a second lens, a third lens and a fourth lens sequentially from the object side to the image side. The present invention shortens the lens length under the condition of maintaining good optical performance by controlling the concave-convex surface arrangement of each lens.

Description

technical field [0001] The present invention is related to a portable electronic device and its optical imaging lens, and especially related to a portable electronic device using a four-piece lens and its optical imaging lens. Background technique [0002] In recent years, the thinning of mobile phones has become a design trend, and this trend has affected the development of related optical imaging lenses. In addition, consumers have increasingly strict requirements for shooting angles. U.S. publication patents US744361 and US7295386 disclose a four-piece optical imaging lens, the first lens provides the main positive refractive power of the lens itself, and the second lens has negative refractive power to eliminate aberrations, but this configuration is not conducive to shooting Due to the expansion of the angle, the half field of view is only about 30-35 degrees, which cannot meet the needs of consumers. Therefore, how to effectively reduce the system length of the optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B7/02
CPCG02B13/004G02B9/34
Inventor 陈锋叶龙陈雁斌
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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