An endoscope including: an elongated shaft and an optical system disposed in the shaft. The optical system includes at least one prism. The prism is mounted in a prism holder. The prism holder having first and second stops for aligning the prism in at least first and second directions, respectively. Wherein the first stop forms a planar stop surface against which a first planar surface of the prism rests, and the second stop forms a linear stop contour against which a second planar surface of the prism rests.

According to an exemplary embodiment, a loupe attachment for glasses may be provided. The loupe attachment may include a loupe and a number of optical devices such as mirrors or prisms. The loupe and the optical devices may be connected to eyeglasses and be positioned as desired. The loupe and the optical device may be connected to the glasses on number of locations and the relative position of the loupe and optical devices in the trajectory of light may be modified. According to a second exemplary embodiment, loupes may be rigidly connected to eyeglasses and a number of optical elements may be rigidly or rotatably connected to the front end of the loupe so as to reflect the field of view situated at an angle from the loupe viewing direction.

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.

An optical element driving mechanism includes a fixed assembly, a first optical module and a driving assembly. The first optical module includes a first movable part configured to be connected to a first optical element, and the first movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the first movable part to move relative to the fixed assembly.

An optical system is provided, including a system base. The system base is connected to a first optical element. The system base includes a first connecting structure corresponding to the first optical element. The system base further includes a second connecting structure corresponding to a second optical element. The first optical element is not in contact with the second optical element.

An optical system is provided. The optical system includes a first optical module, a base and a first optical unit. The first optical module is configured to connect a first optical element. The first optical module is connected to the base, unit is disposed on the base.

The present invention provides an optical 3D stereoscopic glasses comprising a housing, a left lens assembly and a right lens assembly wherein the lens assemblies use refraction to create one of the following viewing modes: positive parallax hyperstereo viewing mode, positive parallax hypostereo viewing mode, negative parallax hyperstereo viewing mode, and negative parallax hypostereo viewing mode, which can causes a viewer to perceive 3D stereoscopic vision of a 2D image shown on a planar screen.

Methods and apparatus relating to image capture of image portions using optical chains with different focal lengths are described. In some embodiments different portions of a scene area of interest captured by different optical chains operating in parallel are combined. The combining in some embodiments is performed using depth information generated from two images captured by two different optical chains which capture at least some common overlapping portions of the scene area of interest. The depth information maybe generated using an image of the entire scene and one or more other images of the scene or portions of the scene area of interest. The use of multiple optical chains in parallel facilitates generation of an image with a higher overall pixel count than would be possible using a single sensor of one of the optical chains and/or with more light capture than would be captured using a single optical chain.

Methods and apparatus for performing a zoom operation are described using multiple optical chains in a camera device. At least one optical chain in the camera device includes a moveable light redirection device, said light redirection device being one of a substantially plane mirror or a prism. The moveable light redirection device is moved to a position in accordance with a zoom setting, and a portion of a scene area of interest in captured. Different discrete zoom setting values correspond to different positions of the moveable light redirection device resulting in different capture areas. In some embodiments, multiple optical chains with moveable light redirection devices are used to capture different portions of a scene of interest. A composite image is generated from a plurality of captured images corresponding to different optical chains. A higher zoom setting corresponds to more overlap between captured images of different optical chains.

A linkage rod including a limited-displacement flexible mechanism has structural robustness and allows easy reduction in weight and size, simple production and easy operation. The linkage rod including at least one limited-displacement flexible mechanism, wherein the limited-displacement flexible mechanism comprises at least one limited-displacement flexible joint which comprises: a flexible member; and at least one bend limitation section which is arranged in parallel with the flexible member so that the bend limitation section limits a bend of the flexible member.