AUTOFOCUS OPTICAL ARRANGEMENTS AND ASSEMBLIES INCLUDING VOICE COIL MOTORS

    公开(公告)号:US20220066126A1

    公开(公告)日:2022-03-03

    申请号:US17006628

    申请日:2020-08-28

    Abstract: Autofocus (AF) optical arrangements and assemblies including a voice coil motor (VCM) are disclosed. An example optical assembly for a focusing lens includes: a front lens group disposed along an optical axis configured to receive light from the object of interest and configured to correct for aberrations of a first image projected by the front lens group; an aperture disposed along an optical axis configured to receive light from the front lens group therethrough along the optical axis; a moveable focus lens to receive light through the aperture; a VCM configured to move the focus lens to focus the optical assembly; and a back lens group disposed along the optical axis configured to receive light from the focus lens and further configured to correct for field curvature.

    MOVING FRONT LENS GROUP MECHANICALLY LOCATED TO FIXED REAR LENS GROUP

    公开(公告)号:US20220381955A1

    公开(公告)日:2022-12-01

    申请号:US17333308

    申请日:2021-05-28

    Abstract: An optical assembly for an autofocus imaging system for capturing at least one image of an object appearing in an imaging field of view (FOV) is provided. The optical assembly includes a front aperture along an optical axis and a front lens group along the optical axis that receives light from the object of interest. The position of the front lens group is adjustable to change a focal distance of the optical assembly. The optical assembly further includes an actuator physically coupled to the front lens group that adjusts the position of the front lens. A rear lens group is disposed along the optical axis to receive the light from the front lens group, and an imaging sensor is disposed at a back focal distance of the rear lens group, to detect the light.

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