Electric focusing mechanism of projector

Abstract

The invention discloses an electric focusing mechanism of a projector, and relates to the technical field of projectors, the electric focusing mechanism comprises a casing, a focusing ring and a lens body, a lens support is fixed on the top of the surface of the casing, the focusing ring is sleeved outside the lens support, the surface of a tooth groove is engaged with a gear, and the gear is meshed with the lens support. The lens body penetrates through the interior of the focusing ring and is inserted into the interior of the lens support, a guide sliding positioning column is arranged on the surface of the lens body, a guide sliding groove is formed in the surface of the lens support, and an inclined sliding groove is formed in the surface of the focusing ring. According to the electric focusing mechanism of the projector, the controller is used for driving the motor to enable the gear to rotate clockwise or anticlockwise, so that the lens body can stably move front and back, electric focusing is achieved, the focusing operation is more convenient and more humanized, and meanwhile, when the projector operates, the focusing effect is better. Dust near the surface of the lens body can be removed by using the hot air generated by the operation of the projector, and meanwhile, the surface of the lens body is prevented from being atomized due to temperature.

Description

technical field [0001] The invention relates to the technical field of projectors, in particular to an electric focusing mechanism of a projector. Background technique [0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signal. Projectors are widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, and DLP. Among them, home projectors have developed to the present, with more and more complete functions and more stable performance. It's also getting easier. [0003] After the existing traditional projector is turned on, it takes a lot of time to focus, especially manually sliding the gear. Every time you adjust the focus, you need to get up next to the projector, and manually turn the focus ring ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an electric focusing mechanism for the projector, which solves the problem that it takes a lot of time to focus after the existing traditional projector is opened in the above-mentioned background technology, especially manually sliding the gear, and adjusting the focal length every time You need to get up to the side of the projector, and adjust the lens by manually turning the focus ring to make the projected image clear. This method largely depends on the human eye's discrimination of the image, as well as the proficiency and even vision of the focuser. Manual Focusing is a relatively backward focusing method, and the user experience is not very good.

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