How to choose an Android projector?

The projector was a device that few people used, due to the costs and the very important spaces it required, but now modern projectors have significantly lowered prices and, for this reason, they can be used instead of televisions for many functions. Many people choose a projector instead of a normal television to enjoy the cinema, since the screens are large, up to 20 inches. The projector allows you to view high definition or ultra definition content.

This is going to require practically an entire room: it may happen that you find yourself with a room in the house that you do not know how to use and the projector in this sense could be the most correct way. 

To choose the projector that best suits your needs, you must first understand the differences between the main operating technologies of video projectors: LCD (Liquid Crystal Display) and DLP (Digital Light Processing). Here you can find a specialized comparison.

The former are based on a cubic prism made up of three faces on which LCD panels are mounted. Each face has a panel, one green, one blue, and one red.

DLP technology projectors, on the other hand, contain an optical chip called DMD and which is made up of micro mirrors or pixels. As they oscillate, the micro mirrors reflect the light emitted by the projector lamp, which is added to an additional beam of light emitted by the DMD chip. Finally, a color wheel located between the DMD and the lens, which rotates at high speed, appropriately colors the image so that it is correctly visible.

Decision

Depending on how much you use it, evaluate the type of resolution of the projector. You can choose from classic SVGA resolutions of 800 x 600 pixels, which are available on older generation projectors.

Bright

Brightness is one of the most important factors as it defines the power of light that the projector transmits to the screen. This value is measured in ANSI Lumen, where one equals the brightness emitted by a candle.

If the brightness of the projector is high, the device will be able to transmit visible images even in not completely dark environments.

Contrast ratio

Contrast ratio indicates the device's ability to render both dark and light areas, regardless of lighting conditions.

Keystone correction

Also known as keystone correction, it is used to compensate for distortion induced by placing the projector at a different angle of incidence than the standard angle of the screen.

Dimensions and weight

You have to consider the type of use you intend to do with the projector. There are different sizes: if you are going to use it frequently, consider buying devices that are as small as possible and light in weight.

Noise

When choosing a projector, noise is critical. Projectors use a fan and a more or less advanced heat dissipation and recirculation system.

Noise is often measured in dB (decibels) and a value below 30 dB is usually low and more than acceptable.

Accessories

Normally, the projector is not equipped with an audio system. Therefore, for maximum performance, it is generally best to combine it with a system with 5 or more speakers plus an amplifier. Also, it is possible to add a tuner to watch traditional TV channels.

Do not forget the projection screen: it is the only solution that will allow you to have perfect and faithful images, without compromising the wall on which the projector reproduces the images.


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