In one method, a display source aligned with an illumination prism assembly is displaced along a displacement axis to adjust the distance between the display source and a collimating prism assembly. The display source, the illumination prism assembly, and an illumination module are translationally moved in unison in a plane normal to the displacement axis. In another method, a component of an optical device is coupled to a mechanical assembly at a known orientation. The mechanical assembly has a test pattern at a known orientation. An image sensor is aligned with the test pattern, and the image sensor captures an image of the test pattern. The captured image is analyzed to determine an estimated orientation of the test pattern. An orientation parameter of the image sensor is adjusted based on a comparison between the known orientation of the test pattern and the estimated orientation of the test pattern.

The present invention relates to a rotating-compensator ellipsometer, comprising the following elements in the light path in this order according to the propagation direction of light: a light source (1); a polarizer (2); a compensator (3a), arranged in a supporting and rotating assembly (4) and comprising an optical axis (O); an analyzer (5); a detector (6), wherein the rotating-compensator ellipsometer further comprises a control unit (7) that is operably connected to at least one of the above elements, wherein the compensator (3a) is a concave prism, having at least five planar surfaces that are perpendicular to a median plane of the prism, said median plane including the optical axis (O), wherein a first planar surface (301) of the prism is perpendicular to the optical axis (O); a second planar surface (302) of the prism forms an angle of 90- with the optical axis (O); a third planar surface (303) of the prism is parallel with the optical axis (O), is perpendicular to the first planar surface (301) and is provided with a reflective coating; a fourth planar surface (304) of the prism forms an angle of 90- with the optical axis (O); a fifth planar surface (305) of the prism is parallel with the first planar surface (301) and is perpendicular to the third planar surface (303), and wherein 45<<65.

An optical element driving device is described that includes a fixed portion having supporting holes, a holding member having a supporting surface formed by a supporting portion supporting an optical element, and a supporting shaft supporting the holding member with respect to the fixed portion in a rockable manner. The supporting shaft has two end portions of cylindrical shape for the supporting holes, and a center portion with first and second outer peripheral surface. The first outer peripheral surface is flush with an outer peripheral surface of the cylindrical shape along an axis line of the cylindrical shape. The second outer peripheral surface is located further inside than the first outer peripheral surface. A center of the first outer peripheral surface is on the supporting surface, and the entire second outer peripheral surface is closer to the first outer peripheral surface than the supporting surface.

A reflecting module includes: a housing; a rotation holder supported by the housing, and including an inclined seating portion; and a reflective member disposed on the inclined seating portion. The rotation holder is rotatable with respect to a first axis perpendicular to an optical axis of the housing, and with respect to a second axis perpendicular to the optical axis and the first axis. The first and second axes cross an inside of a rectangular parallelepiped having a surface coinciding with a surface of the reflective member, and the reflective member interfaces with the seating portion along a diagonal plane within the parallelepiped.

The present invention provides a method for fabricating small right angle prism mirrors, projecting system, and small right angle prism mirrors fabricated by a semiconductor process. The method comprises: coating a reflecting layer on a top surface of a glass substrate; forming an optical glue layer on a bottom surface of the glass substrate; utilizing a mold to form a 3D shape on the optical glue layer; exposing the optical glue layer having the 3D shape to solidify the optical glue layer having the 3D shape and combine the glass substrate having the reflecting layer and the optical glue layer having the 3D shape; removing the mold to form a small prism array; and dicing the small prism array to generate a plurality of small right angle prism mirrors.

A camera assembly and an electronic device having the same are provided. The camera assembly includes a main board, a cover plate, a camera, an infrared lamp and a deflection member. The mainboard and the cover plate are arranged parallel to and spaced apart from each other. The camera and the infrared lamp are arranged on a side of the main board facing towards the cover plate, and spaced apart from each other. The deflection member is arranged on a side of the cover plate facing towards the main board, and is opposite to the camera. The deflection member is configured to deflect infrared light emitted by the infrared lamp towards a direction of a central axis of the camera.

A camera for photogrammerty comprises a camera, a coupling element standardly provided on the camera, an adaptor for attaching a prism which is connectable with the coupling element, and a prism fixed to the adaptor for attaching the prism.

A driving mechanism for an optical element is provided, including a support body, a movable portion, an elastic assembly, and a driving assembly. The movable portion is located in the support body. The movable portion is movable relative to the support body and is used to connect to an optical element. The elastic assembly is movably connected to the support body and the movable portion. The driving assembly is disposed on the support body and the movable portion, and is configured to drive the movable portion to move relative to the support body.

A driving mechanism for supporting an optical member is provided, including a fixed module, a movable module, a driving module disposed therebetween, and an elastic member. The driving module can drive the movable module to rotate around a first rotation axis relative to the fixed module. The elastic member includes a first connecting portion connected to the movable module, a second connecting portion connected to the fixed module, a first string portion connected to the first connecting portion, and a first buffer portion connected to the first string portion. The first string portion is disposed on the first rotation axis. The longitudinal axis of the first string portion is parallel to the first rotation axis. The first buffer portion has wave-shaped structure.

A camera module includes a housing having an internal space, a reflecting module including a reflecting member on a movable holder movably supported by an inner wall of the housing in the internal space, and a lens module disposed behind the reflecting module in the internal space, and including lenses aligned in an optical axis direction so that light reflected by the reflecting member is incident thereto. The movable holder is configured to move the reflecting member in a first axis direction approximately perpendicular to the optical axis direction and a second axis direction approximately perpendicular to the optical axis direction and the first axis direction with respect to the housing. The lens module includes at least two lens barrels disposed on sidewalls of the housing, linearly movable in approximately the optical axis direction, and including the lenses divided and disposed therein.