Actuators for rotating or tilting an optical element, for example an optical path folding element, comprising a voice coil motor (VCM) and a curved ball-guided mechanism operative to create a rotation or tilt movement of the optical element around a rotation axis upon actuation by the VCM. In some embodiments, an actuator includes two, first and second VCMs, and two curved ball-guided mechanisms operative to create rotation or tilt around respective first and second rotation axes.

A driving mechanism is provided, including a fixed part, a movable part connected to the fixed part, a first connecting member, and a first wire. The first connecting member is hinged to the fixed part and connected to the movable part. The first wire has SMA material and is connected between the fixed part and the first connecting member. When the first wire contracts in length, the first connecting member rotates relative to the fixed part, and the movable part is driven to move relative to the fixed part.

A prism for an optical imaging includes an incident surface on which light is incident; an emission surface from which light is emitted; a reflective surface configured to reflect light incident to the incident surface to the emission surface; and a discontinuous portion disposed at one or both of a boundary portion between the incident surface and the reflective surface and a boundary portion between the emission surface and the reflective surface.

The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.

A camera is provided. The camera includes an optical assembly having one or more lenses. The camera also includes an image sensor, a prism, and an actuator. The prism is configured to receive light that has passed through the one or more lenses, reflect the received light multiple times, and transmit the received light to the image sensor in a direction parallel to the optical axis. The image sensor is located at a same side of the prism as the one or more lenses. The actuator is configured to move the prism along an axis parallel to the optical axis for auto focus (AF).

Disclosed are an optical path changing unit and a lens assembly comprising same. The optical path changing unit comprises: a base; a prism unit a part of which is connected to the base and the other part of which is arranged to be movable within the base; and first to third optical image stabilizing (OIS) drive units which change the prism unit into a tiltable position.

A zoom lens, a camera module, and an electronic device are provided. A first control end and a second control end of the zoom lens respectively control a second lens assembly and a third lens assembly to move for zooming; a third control end and a fourth control end control, under a first target focal length, the third lens assembly to move for focusing, and control, under a second target focal length, the third lens assembly to move for focusing, and the first target focal length is different from the second target focal length.

A fingerprint scanning apparatus including a housing, prism mounting mechanics for fixing a prism within the housing to form a platen surface, wherein the mounting mechanics are configured to receive a prism geometry based on a first prism having a first index of refraction and a second prism having a second index of refraction, wherein the prism geometry comprises a critical angle with respect to the platen surface, wherein each of the first and second prisms has substantially the same critical angle with respect to a corresponding prism surface thereof, an objective lens, and an image sensor. In an example, the first prism has a critical index of refraction equal to or greater than an index of refraction of water and the second prism has a critical index of refraction equal to or greater than an index of refraction of air.

This application relates to the field of telescopes, and provides a stabilized gimbal of an erecting prism, a stabilized monocular, and stabilized binoculars. The stabilized gimbal of an erecting prism includes a prism casing, a rotation frame, an external mounting bracket, and a drive control assembly, where the drive control assembly is configured to: drive the prism casing to rotate around a first rotation shaft, and drive the rotation frame to rotate around a second rotation shaft based on deflection position information of the prism casing, deflection position information of the rotation frame, and three-dimensional rotation angular velocity information of the erecting prism.

A camera actuator includes a housing; a prism unit disposed in the housing; and a driving unit for tilting the prism unit. A ball bearing and a pulling magnet for generating attractive force to each other are disposed in the prism unit and the housing. The prism unit is supported to the housing by the attractive force between the ball bearing and the pulling magnet.