Adjustable ultra-short throw laser projection TV

Abstract

The invention discloses an adjustable ultra-short-throw laser projection television which comprises a projection television substrate. The adjustable ultra-short-throw laser projection television is characterized in that a laser projection television screen suspension frame of which the suspension angle is adjustable is arranged outside the projection television substrate; a focusing adjustment structure composed of a focusing adjustor bracket and an auxiliary focusing adjustor is arranged on a lens focusing adjustor; the focusing adjustor bracket is constructed to be capable of fixing the auxiliary focusing adjustor on a lens base of the adjustable ultra-short-throw laser projection television; when being buckled with the focusing adjustor bracket, the auxiliary focusing adjustor is constructed to be capable of rotating so as to drive a lens focusing adjustment handle of the adjustable ultra-short-throw laser projection television to perform corresponding actions and then achieve thefocusing adjustment of a lens; and the lens focusing adjustment handle of the adjustable ultra-short-throw laser projection television is fixedly connected onto the auxiliary focusing adjustor. The image quality of a projection image of the adjustable ultra-short-throw laser projection television disclosed by the invention can reach the optimal degree, and a focusing adjustment zone can be expanded.

Description

technical field [0001] The invention belongs to a laser projection television, and in particular relates to an adjustable ultra-short-focus laser projection television. Background technique [0002] Laser projection TV is a new laser image reproduction technology, which makes full use of the advantages of laser itself. In the way of light propagation, laser light sources are fundamentally different from traditional incandescent lamps and halide lamps: ordinary incandescent lamps and halide lamps emit light in all directions, while lasers gather all the light in a parallel in the beam. In addition, laser projection TVs can express a larger range of colors than traditional projection TVs, providing clearer images. [0003] Although laser projection TV technology has achieved great technological development and innovation, the laser projection TVs currently on the market, especially ultra-short-focus laser projection TVs, have the following problems: First, the internal probl...

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Problems solved by technology

[0003] Although laser projection TV technology has achieved great technological development and innovation, the laser projection TVs currently on the market, especially ultra-short-focus laser projection TVs, have the following problems: First, the internal problems of laser projection TVs: ultra-short-focus laser projection TVs The focus adjustment handle on the lens is generally a lever type, that is, the focus adjustment method is a lever type, which makes most of the focus adjusters installed on the handle also a lever type, and the focus adjustment method is relatively simple. The appearance design of the machine is limited to a certain extent

In addition, the adjustment area of ​​the lever-type focus adjuster is also limited to the adjustable range of the focus adjustment handle on the lens, so the appearance design and internal structure layout design of the whole machine are also affected by it; the second problem is the external suspension of the laser projection TV : The screen suspension brackets of laser projection TVs currently on the market can only simply fix the screen. Although some brackets can adjust the suspension height of the screen, they generally cannot adjust the suspension angle of the screen, and due to the size of the screen suspension bracket It is relatively large and the assembly process is simple, so it is difficult to guarantee the angle of the screen after hanging only by the processing accuracy - the horizontality and verticality meet the requirements

However, most of the laser projection TVs currently on the market are ultra-short-focus, and they have high requirements for the screen hanging angle. This is because the screen hanging angle will have a great impact on the projection quality. Misalignment can cause the projected image to become non-rectangular and can cause poor focus

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