What is a portable micropro -projector?
A portable micropro -project is a compact device that can project images on a film screen, an empty wall or other imaging media. Usually, this device is small enough to fit into the pocket and weigh less than one pound (0.45 kilograms). Depending on the price, micropro -projectors may be very basic or may include virtually the same set of functions as the full -size projector.
Common specifications for all projectors include lumen, contrast ratio, resolution and image throwing ratio. Lumen is the measure of the brightness perceived by the human eye. The US National Standard Institute has a standard for projector lumens, so different models can be reliably compared at this point. The more lumens can direct Projecter in its output, the clearer and easier reading its display will be. Generally, high contrast ratios are desirable and more precise colors, true. The distinction concerns the number of pixels or individual blocks of visual data, the projector can display. The higherThe resolution of a portable micropro -projector is the more visual data to display in the same relative space.
Finally, the throwing ratio is used to measure the size of the projection, due to the distance that the projector is located from the screen or wall. For example, a portable microprojector, which has a throwing ratio of 3.0, displays a Figure 6 feet (1.82 meters) when the projector is set 18 feet (5.5 meters) from the display. The ratio of throwing may be an important aspect when considering use, especially in very small or very large spaces. A portable micro -projector is generally an excellent choice for use in slightly limited settings.
micro -projectors work using one of several different display technologies, depending on the manufacturer. Some companies use microscopic lasers and mirrors to create an image while others use either display technology (LED) or liquid crystal (LED) nEbo liquid crystals (LCD). Depending on Pricepoint, a portable micro-projector will usually include inputs that allow you to project video or static images from different sources, from DVD ™ and Blu-ray ™ players to computer and portable media players. Other options that may contain some micropro -projectors include battery system, built -in audio speakers, tripod socket and adjustable legs for fine -tuning the display angle.