Video Projector: What is it, how does it work and what are its characteristics?

A video projector is a element widely used as a support tool by exhibitors to publish their work due to its ability to enlarge photos or images (videos, presentations, documents, among others) to a specific audience.

What is and how does a video projector work?

A video projector is an electronic device that allows you to reproduce images or videos By transmitting this device on a picture or blackboard, using a set of lenses that will allow a still or moving image to be projected.

What are the main functions of a projector?

In addition to being the preferred support of presenters, it can be used for recreational purposes such as showing movies and cinema-style series, watching television, video games, among others. Its main function is to magnify an image for better visibility.

What elements make up the video projector?

Some of the elements that make up a projector video are: battery, fan with heat sink, speakers, main board, light controller, light unit, microprocessors, focus lens, among other necessary accessories.

How can I use a video projector?

Using a projector is very easy, you just have to connect the corresponding cable, the projector will mechanically detect the signal and will broadcast the content to be amplified. It should be noted that the cables with which a projector can be connected to a device are:

VGA (It is used to connect the projector to a PC), HDMI (It works to project high definition movies), composite videos (it projects DVD videos) and USB (It allows to connect a USB stick, mobile phones or multimedia discs).

Like home theater

The projectors adapt to the content of the movie you are enjoying, offering you the best entertainment experience from the comfort of your home. If you have a team like this, you will have a small theater in your home.

Professional use in auditoriums

The video projector allows you to display a series of images in large size to accompany a professional presentation in PowerPoint, videos, images, texts can be projected and almost any image needed to support the speaker’s work.

In a work or school environment

Currently it is very common to use multimedia content as visual support to carry out presentations in classrooms, trainings, conferences, among others.

gamer use

The versatility of a projector allows you participate in console gamesFor this we recommend acquiring equipment focused on the entertainment area, since these have lamps with a useful life of up to 7000 hours.

for TV

If the video projectors are used as a television, they do not require a large amount of lumens because they operate in a controlled environment.

How is a projector classified according to its use?

When you choose a projector type, you must take into account the field of use, installation location, projection distance, inches from the screen, video projector value, among others. Here are some types of projectors:

CRT

It is a projector that uses three cathode ray tubes (green, red and blue), its advantage is that it is a apparatus similar to the mechanism of television.

LCD

Its name is due to the fact that it uses a liquid crystal display. It is a technology that divides colors into red, green and blue using an LCD screen where they are polarized the pixels creating a type of mask where a pixel does turn on it will not let the light through, but if the light is turned off it will be able to pass. A different LCD mask is created for each color and mixing the images quickly forms the original image.

DLP

It stands for digital light processing. To project follow these steps: 1. Use a powerful LED light source; 2. This light with prism and lens help will point forward. 3. It will pass through filters that divide the light into the colors blue, green and red; with these colors it forms the spectrum to project our images. Four.

To get these colors to blend to project the colors of the real image, he uses a mesh of microscopic mirrors where each small mirror represents a pixel.

LED

It is a device that is made up of LED lamps, are characterized by having a long useful life, they do not overheat, it is a technology used for portable projectors, among others.

Laser LED

It is the most used device today. Its popularity lies in the fact that it is more durable and efficient than a conventional lamp, since it consumes less energy.

3D

It is a team of last generation that projects the image On a special screen, the advantage is that being the most modern equipment shows a higher quality image.

What kind of projectors are there today?

When choosing a projector there are several elements that you must take into account: brightness, resolution, optics and connectivity.

Depending on the resolution

The resolution will determine the sharpness and amount of detail the image will have projected on the screen. It should be noted that the resolution will depend proportionally on the money invested in the acquisition of the equipment, that is, the cheaper the projector, the less resolution.

According to the projection image

In the market there are different types of Video Beam according to the field of action, we will recommend some depending on how you use the projector: 1. If it is for an office (SVGA or Full HD resolution). 2. In the case of schools you can use a low resolution projector (SVGA or WXGA).

3. If you prefer to use it for entertainment, it is best to use Full HD or 4K resolution. 4. When it comes to projecting in large spaces you can use WUXGA or 4K resolution.

type of light

The brightness of a video projector will be determined by the wattage of your lampIt should be noted that these lamps have a useful life time and must be replaced from time to time.

According to its lumens

The more lumens you have the brighter projector the image will be, you will have the possibility to show a larger image and with a greater influence of ambient light.

With low brightness

If the projection area has very little ambient light, you can use a low-light projector to have a good quality projection.

With medium brightness

If you find yourself in a field of projection more or less illuminated, you can use a projector with medium brightness to display your content.

With high gloss

If the place where you are going to project content is quite illuminated with natural light, It is necessary that you use a high brightness video projector that allows you to overcome the ambient light.

Depending on the size

If what you want is to project in open spaces, they require equipment with high illumination, on the market there are projectors that can reach between 6,000 to 10,000 lumens of brightness.

Is it possible to use a video projector with a cell phone?

Some projector models have a USB input where we can connect a mobile phone to make a photo exhibition, your original and interactive presentations or videos without the use of a computer.