A semiconductor device comprises a substrate and a plurality of emitters disposed on the substrate. The emitter may comprise: a first conductive reflection layer having a first reflectivity; an active layer disposed on the first conductive reflection layer; an aperture layer disposed on the active layer and comprising an aperture region and a blocking region surrounding the aperture region; and a second conductive reflection layer disposed on the aperture layer and having a second reflectivity smaller than the first reflectivity. A diameter-to-pitch ratio of the aperture region of the aperture layer is 1:3 to 1:5, wherein the pitch may be defined as the distance between centers of aperture regions of aperture layers of adjacent emitters.

The present disclosure relates to a terminal, a focusing method and apparatus. The terminal includes a ranging radar configured to obtain a reference distance between a target object to be focused and a camera module, wherein an antenna radiation angle of the ranging radar covers a viewing angle of the camera module, and wherein the camera module is configured to adjust a photographing focus of the camera module to a position where the target object is located based on the reference distance.

A camera for detecting an object in a detection zone is provided that has an image sensor for recording image data, a reception optics having a focus adjustment unit for setting a focal position, a distance sensor for measuring a distance value from the object, and a control and evaluation unit connected to the distance sensor and the focus adjustment unit to set a focal position in dependence on the distance value, and to determine a distance value with the distance sensor via a variable measurement duration that is predefined in dependence on a provisional distance value such that a measurement error of the distance value and thus, on a recording of image data of the object, a focus deviation of the set focal position from an ideal focal position remains small enough for a required image sharpness of the image data.

A distance measurement camera 1 contains a first optical system OS1 for collecting light from a subject 100 to form a first subject image, a second optical system OS2 for collecting the light from the subject 100 to form a second subject image, an imaging part S for imaging the first subject image formed by the first optical system OS1 and the second subject image formed by the second optical system OS2, and a distance calculating unit 4 for calculating the distance to the subject 100 based on the first subject image and the second subject image imaged by the imaging part S. The distance calculating part 4 calculates the distance to the subject 100 based on an image magnification ratio between a magnification of the first subject image and a magnification of the second subject image.

Disclosed in an embodiment is a camera module comprising: a housing; a lens module coupled to the housing; a holder disposed in the housing; an elastic member connecting the housing and the holder; a magnet part and an optical member that are coupled to the holder; and a coil part facing the magnet part, wherein the holder includes a first protrusion that extends in an optical axis direction so as to be coupled to the elastic member, and the elastic member includes a first coupling portion coupled to one surface of the first protrusion; the first protrusion includes a guide protrusion which protrudes from the one surface of the first protrusion in the optical axis direction, wherein the guide protrusion is disposed outside the elastic member and has a shape corresponding to at least a portion of the outer circumference of the first coupling portion.

A range finder includes a prism module and a prism adjusting mechanism. The prism module includes a fixing prism group and a movable prism group, wherein the fixing prism group is adjacent to the movable prism group. The prism adjusting mechanism includes a first adjusting group and a second adjusting group, wherein the first adjusting group includes a first adjusting member and a second adjusting member, and the second adjusting group includes a third adjusting member. The first adjusting member or the second adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a first axis, the third adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a second axis, and the first axis is perpendicular to the second axis.

A range finder includes a prism module and a prism adjusting mechanism. The prism module includes a fixing prism group and a movable prism group, wherein the fixing prism group is adjacent to the movable prism group. The prism adjusting mechanism includes a first adjusting group and a second adjusting group, wherein the first adjusting group includes a first adjusting member and a second adjusting member, and the second adjusting group includes a third adjusting member. The first adjusting member or the second adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a first axis, the third adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a second axis, and the first axis is perpendicular to the second axis.

An imaging device includes a composite display device capable of switching between an electronic viewfinder function and a sighting device function. The composite display device includes an eye window and an object window, an organic EL panel that displays a sighting mark that is an indicator, and a photochromic mirror that is a reflective optical element for guiding the indicator to the eye window. A determination unit determines a subject, and a distance-measuring unit measures a distance to the subject. A body control unit controls the organic EL panel, and a photochromic mirror control unit controls a state and a shape of the photochromic mirror. The body control unit performs control for adjusting the projected position of the sighting mark on the basis of distance information of the subject.

An imaging apparatus includes a control unit that executes control in a manner corresponding to the fact that a state of an image capturing person determined on the basis of line-of-sight information is a gaze target undetermined state in which a gaze target has not been determined.

An image capturing lens system includes three lens groups including five lens elements. The three lens groups are, in order from an object side to an image side: first, second and third lens groups. The five lens elements are, in order from the object side to the image side: first, second, third, fourth and fifth lens elements. The first lens element has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. At least one lens element has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the three lens groups in a zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end. The second lens group is moved relative to the first lens group along an optical axis in the zooming process.