OPTICAL SYSTEM AND CAMERA MODULE COMPRISING OPTICAL SYSTEM
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United States of America
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Apr 14, 2022
app pub date -
Jan 2, 2020
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Jan 2, 2020
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Abstract
The zoom optical system according to one embodiment of the present invention comprises a first lens group, a second lens group, and a third lens group which are serially arranged from the object-side towards the image-side, wherein the first lens group comprises a plurality of fixed lenses, the second lens group comprises two movable lenses, the third lens group comprises two movable lenses, magnification is adjusted according to the movement of the second lens group, focus is adjusted according to the movement of the third lens group, the focal length at maximum magnification is at least 13 mm, and the f-number at maximum magnification is at most 3.7.
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