45 results about "Teleconverter" patented technology

A tele-converter lens and an electronic device are provided. The tele-converter lens mounted at an object side of a main photographing lens includes: a first lens having a positive refractive power; a second lens having a refractive power and having at least one aspherical surface; and at least one lens having a refractive power, wherein the first lens, the second lens, and the at least one lens are sequentially arranged from the object side toward the main photographing lens.

A front teleconverter lens system having superb optical performance with less production of aberration in spite of its compactness. The front teleconverter lens system includes, in order from an object, a first lens group having positive refractive power, and a second lens group having negative refractive power, and forming an afocal optical system. A diffractive optical surface is arranged in at least one of the first lens group and the second lens group. The conditional expression 1.2<φF / φR<10 is satisfied, where φF denotes the effective diameter of the most object side lens surface of the first lens group, and φR denotes the effective diameter of the most image side lens surface of the second lens group.

A converter optical system includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; and a fifth lens having positive refractive power; wherein the first to fifth lenses are sequentially disposed in numerical order from the first lens to the fifth lens from an object side of the converter optical system to an image side of the converter optical system; and the fourth lens is bonded to either one or both of the third lens and the fifth lens.

The invention relates to a teleconverter provided with a flange wide-angle high-power lens. A front lens group A and a back lens group B are arranged in sequence in an optical system along a light ray incidence direction from left to right, the front lens group A is provided with a negative crescent lens A-1 and a biconcave lens A-2 in sequence, and the back lens group B is a glued group formed by hermetically connecting a negative crescent lens B-1 and a biconvex lens B-2. A mechanical structure comprises a lens barrel, a front group mounting seat and a back group mounting seat are arranged in the lens barrel, a flange extends out of the lens barrel at a transition position between the front group mounting seat and the back group mounting seat, the front lens group A is placed on the front group mounting seat and is compressed by using a front pressure ring, the back lens group A is placed on the back group mounting seat and is compressed by using a back pressure ring, and an AB isolating ring is arranged between the biconcave lens A-2 and the negative crescent lens B-1. By adopting the teleconverter, the field angle of a zoom lens is enlarged, and a good imaging effect is achieved in the high-power zooming process of the zoom lens.

The invention discloses a test method, a test device and a storage device for the included angle of a double camera. The method includes: adjusting the center of the first camera, the center of the teleconverter and the center of the test picture on a straight line; An imaging point coordinate value; adjust the center of the second camera, the center of the teleconverter and the center of the test picture on a straight line; after focusing on the center of the test picture to be taken and shooting, determine the center of the test picture taken The coordinate value of the second imaging point; according to the coordinate value of the first imaging point and the coordinate value of the second imaging point, it is judged whether the angle between the first camera and the second camera meets the factory requirements. Through the above method, the present invention can quickly test the included angle of the dual cameras to determine whether it meets the factory requirements, thereby preventing defective products from entering the market.

The invention relates to the technical field of mechanical equipment. The invention provides a station adjustment device for a teleconverter coupling AA equipment. The teleconverter coupling AA equipment has two stations, and the first station realizes Loading, unloading, CDD camera positioning and dispensing operations, realize X-Y-Z adjustment components to adjust material posture, AA equipment coupling and UV curing operations on the second station, the station adjustment device drives the module In the transition from the first station to the second station and then to the first station, the station adjustment device includes: a servo motor, a rotary table and a jig. The present invention is easy to use and has a compact structure.

The invention discloses a smart television with a camera provided with the zoom function and a zoom method of the camera of the smart television. The smart television comprises a machine shell and a screen, the camera is installed above the machine shell, a teleconverter array disc is installed on the back side of the screen, a plurality of teleconverters are installed on the array disc, and the array disc is connected with a driving motor which is used for driving the array disc to move to switch the teleconverters opposite to the camera. According to the smart television, the mode of replacing the teleconverters is adopted to enable a lens to achieve the zoom function, the field range of the camera can be further adjusted according to the size of the screen, the manufacturing cost is low, and the operation is easy to ahcieve. When the smart television is used, the lens of the camera is flush with the teleconverters to achieve the zoom function of the lens, the teleconverter array disc with the teleconverters is arranged, the magnification times of the teleconverters on the teleconverter array disc are different, therefore, the driving motor drives the teleconverter array disc to rotate to enable the lens to be flush with the needed teleconverters according to requirements of the lens, and convenience is brought for the lens to conduct zooming for corresponding magnification times.