The present invention provides a flexible arm that is easily bendable yet capable of maintaining a bent state thereof. The flexible arm 8 is constituted with a coil 80 and a tube 90 provided on an outer periphery thereof. The coil 80 is formed as a double-strand coil containing a wire rod (SUS304WPB) 82 having a round cross-section and an SUS wire rod (SUS304) 84 having a triangular cross-section. On the outer periphery of the coil 80, the tube 90 made of silicone is provided so as to be in close contact therewith. By making an outside diameter of the coil 80 slightly larger than the inside diameter of the tube 90 (approximately 10% of the tube diameter), the tube 90 fits tightly to the outer periphery of the coil 80. The tube 90 is fitted over the coil 80 in a state stretched from a natural state thereof in a direction A in the figure. Accordingly, the flexible tube 90 attempts to move in the contraction direction, and therefore force in a direction compressing the coil 80 can be applied. Thus, the bent state of the flexible arm 8 can be maintained.

A beam steering device includes a housing and a transceiver that emits and receives light beams through at least one opening in the housing. A rotator includes a cylindrical body rotatably mounted within the housing axially between the transceiver and the at least one opening. A wedge-shaped prism is secured within the body and includes a first surface extending perpendicular to the axis and a second surface extending transverse to the axis. An encoder member and a drive member are provided on an outer surface of the body. Sensors are mounted to the housing to sense the encoder member and provide an encoder signal indicative of a rotational position of the prism about the axis. At least one drive element is mounted to the housing and applies force to the drive member to rotate the body and prism about the axis for steering light beams propagating through the prism.

An optical member driving mechanism is provided. The optical member driving mechanism includes a first movable portion used for connecting an optical element, a fixed portion, a first driving assembly used for driving the first movable portion to rotate relative to the fixed portion, and a guiding assembly having a first intermediate element. The first movable portion is movable relative to the fixed portion. The guiding assembly is used for applying a first stabilized force to the first movable portion for making the first intermediate element be in contact with the first movable portion or the fixed portion. The first movable portion is rotatable relative to the fixed portion.

A clip-on display for mounting to a riflescope may include a clamp member. The clamp may include first lateral member. The clamp may include a second lateral member spaced apart from the first lateral member. The clamp may include a collar that extends between and couples the first lateral member and the second lateral member. The clamp may include a first clamp arm and a second clamp arm. Each of the first clamp arm and the second clamp arm may include a fixed end that extends from the first lateral member and a free end that is coupleable with the second lateral member to tighten the respective clamp arm. The clip-on display may include a beam splitter coupled with the clamp.

An imaging device (100) and an electronic device (1000). The imaging device (100) includes a housing (10) and a first lens module (20). The housing (10) includes a base plate (11) and a side plate (12). The side plate (12) is provided with a sliding groove (125). The first lens module (20) includes a casing (21) and a lens group (22). The casing (21) includes a main body (211) and a sliding block (212). The sliding block (212) is slidably disposed in the sliding groove (125). The casing (21) is configured to drive the lens group (22) to slide.

An optical element driving mechanism is provided. The optical element driving mechanism includes a first holder, a fixed portion, a first driving assembly, and a first stopping assembly. The first holder is used for connecting to an optical element. The first holder is movable relative to the fixed portion. The first driving assembly is used for driving the first holder to move relative to the fixed portion. The first stopping assembly is used for restricting the movable range of the first holder relative to the fixed portion.

A line narrowing module includes an enclosure, a prism which is disposed in an internal space of the enclosure and through which light passes, a mounter which is disposed in the internal space and on which the prism is mounted, a fixing unit which is disposed in the internal space and fixes the prism to the mounter, and a light blocking member. The light blocking member is disposed in the internal space and blocks scattered light in the internal space, the scattered light produced from the light and traveling to the fixing unit.

An optical element driving mechanism includes a movable assembly, a fixed assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element. The movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly in a range of motion. The optical element driving mechanism further includes a positioning assembly configured to position the movable assembly at a predetermined position relative to the fixed assembly when the driving assembly is not operating.

To compensate for a focal plane shifting away from an image plane due to a temperature change, an integrated image sensor and lens assembly includes an optical component and an optics compensator including passively actuating elements. The passively actuating elements couple the optical component to the inner surface of the lens mount. The passively actuating elements and the optics component are configured such that the focal plane is maintained to coincide with or substantially coincide with the image plane. The passively actuating elements and the optics component adjust the distance an incident ray travels in the optics compensator when the temperature changes to thereby maintaining the focal plane to coincide with or substantially coincide with the image plane.

A lens module includes a lens set and a prism. The lens set has a first light emitting surface and a first engaging structure, wherein the first engaging structure is formed on the first light emitting surface. The prism is disposed adjacent to the lens set. The prism has a light incident surface and a second engaging structure, wherein the second engaging structure is formed on the light incident surface. The lens set and the prism are assembled with each other by engaging the first engaging structure with the second engaging structure.