Now, the miniature projectors are mainly for three markets. The first is the entertainment market. This is the most widely used market for miniaturized projectors. This type of product is dedicated to providing entertainment users with large-screen enjoyment. In general, this product has an intelligent system that can provide movies, TV shows, and entertainment programs. There is also a miniature projector oriented to the business market. The system is optimized for business activities, such as reading local stored content and supporting reading of content such as PPT and text documents.
In addition to the system optimization, the users of these two markets have different requirements for the appearance of miniature projectors. The size of the business miniature projector must be small, because many people buy a business miniature projector is a portable advantage of this product. If the volume of this product is too large. Traveling on business becomes very troublesome. For entertainment micro projectors, in fact, consumers often do not often carry such products out. Therefore, the appearance of entertainment projectors by consumers is not as sensitive as that of business users.
Of course, the micro projector is definitely the smaller the better, but the current technical conditions are limited. If the size of the pico projector is too small, the volume advantage is achieved, but the noise of the pico projector becomes larger. Because of the compact size of the pico projector, if it is very compact, the space for placing the fan is limited. In this way, the designer can only select a fan with a relatively small radius. The small fan wants to achieve a good heat dissipation effect, and the fan speed must be fast. A quick noise of the fan speed is difficult to control. Therefore, it can be said that the current small micro projector. There must be no bulky product with good noise control. This is determined by the speculative technology of pico projectors.
In addition, if the volume is too small, the heat dissipation effect of the pico projector must be discounted. In fact, the life of the LED light source is also not good. LED modules are exposed to high temperatures for a long period of time, and their overall life cycle may be shortened. And if the volume is too small, the miniature projector lens has no way to adopt a complicated configuration, so the projection value of the compact pico projector lens is relatively large, that is to say, the screen size projected at a certain distance is relatively small. If the volume is slightly larger, the designer can use a better lens.
If there is a miniature projector that is too small, the effect of a speaker with a mini projector will not be very good. Because of the good sound quality, a certain amount of space is required. Without a horn's living space, the sound quality of a miniature projector is difficult to satisfy. Therefore, it can be said that the appearance and size of the pico-projector almost determine the multi-dimensional performance of the pico-projector. Such as the noise ratio and the effect of the speaker and so on.
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