Optical lens, camera module and shooting equipment
An optical lens and lens group technology, applied in optics, optical components, instruments, etc., can solve the problems of lens stray light or vignetting, unable to ensure the same physical aperture of the diaphragm, etc., to improve performance, reduce stray light or The effect of the risk of vignetting
Active Publication Date: 2021-02-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0002] The lens usually adopts a single aperture design. Because it is necessary to ensure that the physical aperture of the aperture remains unchanged, the entrance pupil aperture at different focal lengths can be matched by moving together with the zoom lens or the compensation lens. Because the design can only optimize At different focal lengths, the physical aperture of the aperture is as close as possible, but there is no guarantee that the physical aperture of the aperture is exactly the same at different focal lengths, which will bring the risk of stray light or vignetting on the actual lens
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[0030] Embodiments of the present application will be further described below in conjunction with the accompanying drawings. The same or similar reference numerals in the drawings represent the same or similar elements or elements having the same or similar functions throughout.
[0031] In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary, and are only used to explain the embodiments of the present application, and should not be construed as limiting the present application.
[0032] In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquel...
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The invention discloses an optical lens, a camera module and shooting equipment. The optical lens sequentially comprises a prism, a first lens group, a second lens group and a third lens group from the object side to the image side; wherein a first diaphragm is arranged between the first lens group and the prism; and a second diaphragm is arranged between the second lens group and the third lens group or between the first lens group and the second lens group. When the optical lens is switched between a short-focus state and a long-focus state, the prism is fixed, the first lens group and the first diaphragm are fixed relative to the prism, the second lens group, the third lens group and the second diaphragm move relative to the prism along the optical axis of the optical lens, and in the long-focus state, the first diaphragm is an aperture diaphragm, and the second diaphragm is a stray light eliminating diaphragm. In a short-focus state, the second diaphragm is an aperture diaphragm, and the first diaphragm is a stray light eliminating diaphragm. According to the optical lens, the risks of stray light and astigmatism can be reduced, the flexibility of the optical lens is improved,and the performance of the optical lens is improved.
Description
technical field [0001] The present application relates to the technical field of consumer electronics, and more specifically, to an optical lens, a camera module and a shooting device. Background technique [0002] The lens usually adopts a single aperture design. Because it is necessary to ensure that the physical aperture of the aperture remains unchanged, the entrance pupil aperture at different focal lengths can be matched by moving together with the zoom lens or the compensation lens. Because the design can only optimize At different focal lengths, the physical aperture of the aperture is as close as possible, but there is no guarantee that the physical aperture of the aperture is exactly the same at different focal lengths, which will bring the risk of stray light or vignetting on the actual lens. Contents of the invention [0003] An embodiment of the present application provides an optical lens, which sequentially includes a prism, a first lens group, a second lens...
Claims
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IPC IPC(8): G02B15/14G02B13/18
CPCG02B15/14G02B13/18G02B13/0045G02B13/0065G02B15/1435G02B5/005G02B5/0284G02B5/0278G02B5/021G02B5/0268G02B7/021
Inventor 徐青
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD