portrait lens
A lens and lens technology, applied in the field of portrait lenses, can solve the problems of poor image quality at the edge of taking pictures, and achieve the effect of small size and high image quality
Active Publication Date: 2018-08-28
ZHONGSHAN AZU OPTOELECTRONICS TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the existing portrait lens has poor imaging quality at the edge of the photograph.
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[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention provides a portrait lens. The portrait lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, which are sequentially arranged from an object side to an image side along the optical axis; the first lens is a meniscus shaped lens having positive focal power, and the convex side of the first lens faces the object side; the second lens is a bi-concave lens having negative focal power; the third lens is a meniscus shaped thin lens having negative focal power, and the convex side of the third lens faces the object side; the fourth lens is a bi-convex lens having positive focal power; the fifth lens is a meniscus shaped lens having negative focal power and the convex side of the fifth lens faces the object side; and the sixth lens is a meniscus shaped lens having positive focal power, and the concave side of the sixth lens faces the image side. The portrait lens has high image quality from the center to the edge, and can expand the focal length of a mobile phone to be an equivalent silent frame of 60mm when applied to the mobile phone for photographing.
Description
technical field [0001] The invention relates to the technical field of lenses, in particular to a portrait lens. Background technique [0002] With the continuous development of science and technology, electronic products (such as mobile phones, tablet computers, etc.) already have imaging devices. However, its focal length is fixed, so it cannot meet the needs of shooting different scenes. To do this, a portrait lens usually needs to be attached to the electronics. For example, add a portrait lens to the mobile phone to increase the focal length of the mobile phone camera lens, which is equivalent to a mirrorless 60mm focal length lens, so that the photos of people and other things taken will be better. [0003] However, the existing portrait lenses usually have the disadvantages that it is difficult to balance the resolution performance and the size (that is, the resolution is good but the volume is too large, the volume is small but the resolution is too poor), and the ...
Claims
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IPC IPC(8): G02B13/00
CPCG02B13/005
Inventor 吴伟
Owner ZHONGSHAN AZU OPTOELECTRONICS TECH CO LTD