Projector additionally provided with incandescent lamp

Abstract

A projector additionally provided with an incandescent lamp belongs to the field of multimedia imaging. An incandescent lamp and a light inductor are added to the outside of a projector, the incandescent lamp is called an external bulb, an internal circuit of the projector and the incandescent lamp and the light inductor constitute a loop, providing voltage for the incandescent lamp and the light inductor, the external bulb is fixedly mounted on a reflector in a position between the reflector and a projection screen, the light inductor is fixedly mounted on the reverse side of the reflector and can sense light outside the projector, and the additionally mounted light inductor judges whether the incandescent lamp is needed to provide an external light source. The projector additionally provided with the incandescent lamp reduces loss of an imaging light source metal halide lamp, the service life is prolonged, external interference is reduced, at the same time, the imaging definition is controlled, and a contrast ratio and color brightness of imaging are improved, thereby achieving a better effect.

Description

technical field [0001] The design of the present invention is a projector device in which an ordinary incandescent lamp is installed in the projector and a light sensor is installed outside the projector, belongs to the field of multimedia imaging, and the projector is specially designed for projectors in the education industry. Background technique [0002] Projectors are also called projectors. Under the background of the country's policy of stimulating domestic demand and the continuous improvement of people's income, the implementation of the rural cultural sharing project has further promoted the rapid growth of China's projector market. The consumer market for projector products in China is mainly concentrated in large and medium-sized cities such as North China, East China, and South China where the economy is more developed. Education, business, government, and home entertainment are the four major consumer groups supporting China's projector industry. Looking at th...

AI Technical Summary

Problems solved by technology

[0006] Due to the wide range of projectors used, changes in the external environment can easily affect the quality of the projector's imaging, including a series of factors such as external light, temperature, and the quality of the screen. Among them, the impact of external light is relatively large. It directly affects the power of the projector's internal light source bulb, especially the metal Lusu lamp has a short service life, and the external light source has a large degree of brightness and darkness, which affects the service life of the projector. Therefore, the present invention proposes a light sensor A method to control the incandescent lamp to provide a light source and increase the brightness, so that the image is clearer and the life of the projector is longer

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