Hisense USA Corporation

Hisense International Co., Ltd.

Hisense Co., Ltd.

Hisense Laser Display Co., Ltd.

Xiuyan Cao

Wensheng Lu

Rongrong Cui

Naiwen Hou

Xianglai Pang

Lu Chen

Liang Yin

Shubin Dong

Yong Tian

Liming Cao

Chongyang Zhang

A projection apparatus includes a light source assembly, a display control circuit, a light valve, a vibrating lens drive assembly, and a vibrating lens. The display control circuit is configured to obtain a plurality of sub-images; in a process of emitting beams of three primary colors by the light source assembly to the light valve sequentially, control, according to primary color parameters of the pixels in each sub-image, the light valve to sequentially reflect beams corresponding to the plurality of sub-images to the vibrating lens; and in a process of projecting each sub-image, transmit a vibrating lens current control signal corresponding to the sub-image to the vibrating lens drive assembly. The vibrating lens drive assembly is configured to provide at least one vibrating lens driving current to the vibrating lens according to the vibrating lens current control signal corresponding to the sub-image.

Projection apparatus and projection display method

Provided are an optical illumination system, and a projection device. In an example, the optical illumination system includes a DMD, a lens assembly and a RTIR assembly. The lens assembly adjusts a light beam. The RIM assembly includes a first plano-convex lens and a wedge prism. The first plano-convex lens includes a plane surface and a convex surface and is configured to refract the light beam adjusted by the lens assembly. The wedge prim includes a first side surface, a second side surface and a third side surface. The plane surface of the first plano-convex lens is glued with the first side surface of the wedge prism. The wedge prism is configured to receive and refract the light beam refracted by the first plano-convex lens through the first side surface, and the light beam refracted by the first side surface is transmitted through the second side surface. The DMD is at a light emitting side of the second side surface of the wedge prism, and configured to receive and reflect the light beam from the second side surface of the wedge prism. The reflected light beam is incident to the first side surface of the wedge prism through the second side surface of the wedge prism for total internal reflection then transmitted through the third side surface.

Optical illumination system and projection device

Embodiments of the present invention provide a light homogenizing device and a laser projection apparatus. The light homogenizing device comprises a shell and a light stick, wherein the shell forms a holding chamber having openings at both ends thereof; the light stick is located within the holding chamber, and the openings at both ends of the holding chamber correspond to an incident end and an emergent end of the light stick, respectively; and, an elastic component is provided on at least one surface of the shell, with a first end of the elastic component being connected to the shell while a second end thereof extending into the interior of the holding chamber and pressing against the light stick.

Light homogenizing device and laser projection apparatus

The present application provides a light-pipe adjusting apparatus comprising: a first support; a light-pipe component, slidably connected to the first support via a first rail; and a first drive device, provided on the first support and connected to the light-pipe component for driving the light-pipe component to slide along the first rail. The present application can improve the accuracy and reliability of the position adjustment of the light-pipe component.

Light-pipe adjusting apparatus

Growing community of inventors

Shandong, China

Xiuyan Cao