What is a video projector?

(red, green and blue). The amount of light passing through each pixel varies depending on the image data received from the computer. Light from a lamp is directed through LCD panels, focused using a lens, and projected onto a screen. The overall structure of the device is similar to a slide projector, where the “slide” consists of three LCD panels that are placed close together near the focal point of the projection lens. The advantages of LCD technology include efficiency, ease of brightness and contrast adjustment, and high image resolution.

A newer and more expensive scheme is known as digital light processing (DLP), a proprietary technology developed by Texas Instruments. In DLP display, small mirrors are used instead of transparent panels. Each mirror represents one pixel. Light is reflected off the panel instead of passing through it. The mirrors move back and forth and the amount of light that reaches the display lens from each pixel is different. Color is obtained by passing the lamp light through a rotary wheel with red, green and blue filters. This exposes the mirrors to each of the primary colors in a rapid rotating sequence. The result is a color modulated image that the human eye perceives as natural color. Advantages of DLP technology include light weight, high contrast, and lack of pixels.

2) The term digital video projector is sometimes used for a program that facilitates the viewing of three-dimensional, interactive, full-motion audio and video files on a personal computer. Versions are available for both IBM-compatible and Macintosh computers and can be downloaded from the Internet. They can be used as plugins for popular browsers to view animated web page content. For optimal performance on the Internet, due to the high speed and interactive nature of the content, and because the files sent are often large, a broadband connection must be used.

Projector type

Everything related to video projectors

If you’ve been to the movies, you’ve probably watched a movie using a video projector. Or maybe you use it at home to watch movies and play video games. Have you ever wondered how your projector works? Also, did you know that there are different types of projectors with different pixels and resolutions? If you know how the projector works and what specifications to look for, it will be easier to choose the right projector for your needs.

Outdoor projector screen

You know how you can cut a small hole and put a flashlight inside it to reflect the light on the wall that looks like the hole? A projector works similarly, but instead of the light passing through an open hole, it passes through a lens and an inverted image is magnified on the wall. The real difference is the type of projector technology used to create the image, and there are many different types of projectors.

Types of projectors

1-Projector in the dark

2-Cathode ray tube projector

Cathode ray tube projectors, also known as gun projectors, are the oldest type of screen projector. They use the same technology you find in CRT TVs. In a nutshell, CRT projectors produce images using a light-magnifying lens and three high-brightness cathode ray tubes arranged like horizontal traffic lights—but in red, green, and blue. The lights then converge on a phosphor-coated surface to create an image.

final word

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Bahareh Salehnia is a porter photography artist from New York. She is one of the most popular influencers on Instagram and the owner of one of the biggest photography learning pages on Instagram, with more than 3.4 million followers.