Variable focal distance lens system and imaging device
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 31, 2024
Grant Date -
May 12, 2022
app pub date -
Dec 25, 2019
filing date -
Dec 25, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A first lens unit and a third lens unit are constituted by a lens which is rotationally symmetrical with respect to an optical axis and are disposed on the same optical axis, a first freeform-curved surface lens and a second freeform-curved surface lens have the same shape and are disposed to be rotated at 180 degrees with respect to the optical axis. Further, a refractive power of a second lens unit is variable due to the first freeform-curved surface lens and the second freeform-curved surface lens moving in opposite directions. The first freeform-curved surface lens and the second freeform-curved surface lens are moved in the Y-axis direction in association with movement of some of lens groups constituting the first lens unit and the third lens unit when positional states of the lenses are changed from a wide-angle end state to a telephoto end state.
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