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Optical imaging lens and electronic device using the same

An optical imaging lens and lens technology, which is applied in the field of optical lens, can solve the problem that the length of the system cannot be effectively reduced, and achieve the effects of light, thin and small structure design, optimal imaging quality, and overcoming aberrations

Active Publication Date: 2016-06-01
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Abstract
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Problems solved by technology

[0003] U.S. Patent Nos. 7692877, 8325269, Taiwan No. I320107 and Japanese Patent No. 2006-293324 all disclose an optical lens composed of four lenses. However, the system length of these optical lenses cannot be effectively reduced to a certain length to meet the design requirements of thin mobile phones

Method used

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  • Optical imaging lens and electronic device using the same
  • Optical imaging lens and electronic device using the same
  • Optical imaging lens and electronic device using the same

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Embodiment Construction

[0044] Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

[0045] The term "a lens has a positive refractive power (or negative refractive power)" mentioned 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 the object side are defined as the range through which the imaging ray passes, where the imaging ray includes the chief ray (chiefray) Lc and the marginal ray (marginalray) Lm, such as figure 1 As shown, I is the optical axis and this lens is radially symmetrical to each other with the optical axis I as the symmetry axis. The area where the light rays pass through the optical axis is the area A near the optical axis, and the area where the marginal light rays pass is the area C near the circumference. , In addition, the lens also includes an extension E...

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Abstract

The invention relates to an optical lens. The invention discloses an optical imaging lens which includes an aperture, and first, second, third and fourth lenses in sequence from an object side to an image side along an optical axis, each lens has an object side face and an image side face, and the optical lens satisfies TTL / T4<=6.7 and ALT / T3<=3.6. The invention also discloses an electronic device which includes an enclosure, and an image module which is installed in the enclosure and includes the abovementioned optical imaging lens, a lens barrel, a module holder unit, a substrate and an image sensor. The optical imaging lens and the electronic device using the same are used for optical photography.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical imaging lens and an electronic device using the optical imaging lens. Background technique [0002] In recent years, the popularization of portable electronic products such as mobile phones and digital cameras has led to the vigorous development of imaging module related technologies. The imaging module mainly includes components such as optical imaging lens, module holder unit and sensor. The trend of thinner and lighter cameras also increases the demand for miniaturization of image modules. In order to reduce the size of the optical lens, the length of the optical lens installed in the image module needs to be shortened accordingly. However, in order to avoid the degradation of the photographic effect and quality, good optical performance must still be taken into account when shortening the length of the optical lens. However, the most important characteristics of optical lenses a...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 许圣伟唐子健
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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