A video projector is an 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.
Index( )
- What is a video projector and how does it work?
- What are the main functions of a projector?
- What elements constitute the video projector?
- How can I use a video projector?
- like home theater
- Professional use in auditoriums
- In a work or school environment
- gamer use
- for tv
- How is a projector classified according to its use?
- CRT
- LCD
- DLP
- leds
- Laser-LED
- 3D
- What types of projectors currently exist?
- Depending on the resolution
- According to the projection image
- light type
- According to your lumens
- with low brightness
- with medium shine
- with high gloss
- Depending on the size
- Is it possible to use a video projector with a cell phone?
What is a video projector and how does it 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 you to project a still or moving image.
What are the main functions of a projector?
In addition to being the preferred support for presenters, it can be used for recreational purposes such as projecting movies and cinema-style series, watching television, video games, among others. Its main function is to magnify an image for better visibility.
What elements constitute the video projector?
Some of the elements that make up a video projector 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 emit the content to be amplified. It is necessary to highlight that the cables with which a projector can be connected to a device are:
VGA (Used to connect the projector to a PC), HDMI (Used to project movies in high definition), composite videos (projects DVD videos) and USB (Allows you to connect pen drives, mobile phones or multimedia disks).
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 equipment like this, you will have a small cinema in your home.
Professional use in auditoriums
The video projector allows you to display a series of large images to accompany a professional PowerPoint presentation , videos, images, texts and almost any image necessary to support the speaker’s work can be projected.
In a work or school environment
Nowadays 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 to participate in console games , for this we recommend you acquire equipment focused on the entertainment area, since these have lamps with a useful life of up to 7,000 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, screen inches, value of the video projector , among others. Here are some types of projectors:
CRT
It is a projector that uses three cathode radio tubes (green, red and blue), its advantage is that it is a device similar to the mechanism of television.
LCD
Its name is due to the fact that it uses a liquid crystal screen. It is a technology that divides colors into red, green and blue using an LCD screen where the pixels are polarized creating a type of mask where if a pixel is turned on it will not let the light pass through, but if the light is turned off it will be able to pass. For each color a different LCD mask is created and by rapidly mixing the images the original image is formed.
DLP
It stands for digital light processing. To project, follow these steps: 1. Use a powerful LED light source; 2. This light with the help of prisms and lenses will point forward . 3. It will go through filters that split 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 merge to project the colors of the real image, it uses a mesh of microscopic mirrors where each small mirror represents a pixel.
leds
It is a device that is made up of LED lamps, they 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 state-of-the- art equipment that projects the image on a special screen, the advantage is that as it is the most modern equipment it shows a higher quality image.
What types of projectors currently exist?
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 how sharp and how detailed the projected image will be 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 the use you give 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).
- 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.
light type
The brightness of a video projector will be determined by the power of its lamp , it should be noted that these lamps have a useful life and must be replaced from time to time.
According to your lumens
The more lumens the projector has, the brighter the image will be , you will have the possibility of showing a larger image and with greater influence of ambient light.
with low brightness
If the projection area is in very little ambient light, you can use a low-light projector to get a good quality projection.
with medium shine
If you are in a more or less illuminated projection field , you can use a medium brightness projector to display your content.
with high gloss
If the place where you are going to project content is well lit with natural light, you need to use a high-brightness video projector that allows you to overcome ambient light.
Depending on the size
If what you want is to project in open spaces that require equipment with high lighting , there are projectors on the market 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 models of projectors 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.