Abstract: An electronic system, an outlet structure and a cable are provided. The outlet structure includes a housing, a cable and a positioning member. The housing has a through hole and a receiving slot. The receiving slot is disposed on a second side of the housing. The through hole extends to a first side of the housing from the receiving slot. The cable includes a wire and an annulus annularly disposed on the wire, and has a groove set on one side of the annulus against the wire which passes though the through hole. The annulus is disposed in the receiving slot of the housing and on the through hole. The positioning member engages in the groove and is fixed on the second side of the housing. The outlet structure not only reduces overall material cost, but also simplifies overall assembly difficulty.

Abstract: An electronic viewfinder is configured to magnify an image and provide adjustable diopter for different observers. The electronic viewfinder includes an aperture stop, a lens group totally with positive power, and a display. The components in the electronic viewfinder are arranged sequentially between the observer and the image. The lens group is utilized to enlarge the image, and the lens group includes a first lens with positive power and a second lens with negative power. The display is for showing the image. A first planar lens is disposed between the aperture stop and the lens group. A second planar lens may be disposed between the lens group and the display. A polarizer may be arranged between the second planar lens and the lens group.

Abstract: An electronic viewfinder is configured to magnify an image and provide adjustable diopter for different observers. The electronic viewfinder includes an aperture stop, a lens group totally with positive power, and a display. The components in the electronic viewfinder are arranged sequentially between the observer and the image. The lens group is utilized to enlarge the image, and the lens group includes a first lens with positive power and a second lens with negative power. The display is for showing the image. A first planar lens is disposed between the aperture stop and the lens group. A second planar lens may be disposed between the lens group and the display. A polarizer may be arranged between the second planar lens and the lens group.