Abstract: Embodiments of this application provide a picture transmission method and apparatus. A photographer inputs an operation instruction in a user interface of a first electronic device, to select a first picture whose imaging effect needs to be shared. The first electronic device processes the first picture based on specification information of a display of a second electronic device, to obtain each second picture and a posing score that are used to represent the imaging effect of the first picture. Then, the first electronic device sends each second picture and the posing score to the second electronic device, so that a user wearing the second electronic device can view the imaging effect of the first picture, and a photographed object does not need to move back and forth to the photographer to view a photographing effect.

Abstract: Provided is a Fresnel lens and display device with such Fresnel lens, the Fresnel lens includes an entrance plane and an exit plane with multiple bump units. The bump units include a First Bump Unit, a Second Bump Unit, and a Third Bump Unit; on one side of the central axis of said lens, the First Bump Unit, Second Bump Unit and Third Bump Unit are placed successively along the radiation direction from the central axis toward the lens edge; on the other side of the central axis of said lens, the First Bump Unit, Second Bump Unit and Third Bump Unit are also placed successively along the radiation direction from the central axis toward the lens edge. The Bump Units on both sides of the central axis of the lens are symmetrical.

Abstract: Provided is a Fresnel lens and display device with such Fresnel lens, the Fresnel lens includes an entrance plane and an exit plane with multiple bump units. The bump units include a First Bump Unit, a Second Bump Unit, and a Third Bump Unit; on one side of the central axis of said lens, the First Bump Unit, Second Bump Unit and Third Bump Unit are placed successively along the radiation direction from the central axis toward the lens edge; on the other side of the central axis of said lens, the First Bump Unit, Second Bump Unit and Third Bump Unit are also placed successively along the radiation direction from the central axis toward the lens edge. The Bump Units on both sides of the central axis of the lens are symmetrical.

Abstract: Provided is a Fresnel lens and display devices with such Fresnel lens, the Fresnel lens includes an entrance plane and an exit plane with multiple bump units. The bump units include a first bump unit, a second bump unit, and a third bump unit; on one side of the central axis of said lens, the first bump unit, second bump unit and third bump unit are placed successively along the radiation direction from the central axis toward the lens edge, on the other side of the central axis of said lens, the first bump unit, second bump unit and third bump unit are also placed successively along the radiation direction from the central axis toward the lens edge. The bump units on both sides of the central axis of the lens are symmetrical.

Abstract: A direction backlight stereoscopic display device, comprises a backlight assembly, and sequentially comprises a lens array and an image display unit along a transmitting direction of light rays emitted from the backlight assembly. The lens array includes a plurality of lens units, and the lens units are arranged along a preset curvature, forming a concave surface facing toward the image display unit. The lens array of the directional backlight stereoscopic display device according to the embodiments of the present invention is arranged as a concave surface with a definite curvature, forming an uninterrupted viewing zone distribution in a viewing region to guarantee the viewing zone a visual effect of uniformity without any dark region.

Abstract: A direction backlight stereoscopic display device, comprises a backlight assembly, and sequentially comprises a lens array and an image display unit along a transmitting direction of light rays emitted from the backlight assembly. The lens array includes a plurality of lens units, and the lens units are arranged along a preset curvature, forming a concave surface facing toward the image display unit. The lens array of the directional backlight stereoscopic display device according to the embodiments of the present invention is arranged as a concave surface with a definite curvature, forming an uninterrupted viewing zone distribution in a viewing region to guarantee the viewing zone a visual effect of uniformity without any dark region.