What is a projector?
A projector simply projects images onto a wall or projection screen. Projectors are typically used to increase the image size for viewing by audiences. Projectors come in a variety of sizes, normally measured in Lumens which is the brightness of the light. This brightness will determine the size the image can project and the distance the projector can be from the screen. Slide projectors use light to project images from 35mm slides. Digital Projectors use light to project images from computers and DVD players.
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A projector is a machine that shines a reflection of an image or text onto the surface in front of it. Example: The music teacher shone the song lyrics onto the wall for the …children to see via the projector
InFocus is a professional line of Home Theatre, Business, Corporate and Classroom projectors. They get good reviews, and some of their models are DLP and LCD. I personally o…wn a InFocus LP640, and I love it.
Also known as an optical comparator, or even called a shadowgraph, a profile projector is an optical instrument that can be used for measuring. It is a useful item in a small …parts machine shop or production line for the quality control inspection team. The projector magnifies the profile of the specimen, and displays this on the built-in projection screen. On this screen there is typically a grid that can be rotated 360 degrees so the X-Y axis of the screen can be aligned with a straight edge of the machined part to examine or measure. This projection screen displays the profile of the specimen and is magnified for better ease of calculating linear measurements. An edge of the specimen to examine may be lined up with the grid on the screen. From there, simple measurements may be taken for distances to other points. This is being done on a magnified profile of the specimen. It can be simpler as well as reduce errors by measuring on the magnified projection screen of a profile projector. The typical method for lighting is by diascopic illumination, which is lighting from behind. This type of lighting is also called transmitted illumination when the specimen is translucent and light can pass through it. If the specimen is opaque, then the light will not go through it, but will form a profile of the specimen. Measuring of the sample can be done on the projection screen. A profile projector may also have episcopic illumination which is light shining from above. This useful in displaying bores or internal areas that may need to be measured. If you have a need for a profile projector or optical comparator, please contact us today. We have several lines available, including versions with manual micrometers or newer versions with digital readouts and digital micrometers for accurate and fast microscope measuring.
Projectors have a few advantages such as larger picture ispossible, low cost and it saves space. There are some disadvantagessuch as a dark room is needed, maintenance and ins…tallation can bemore complicated.
Projecters show a larger version on a screen or blank wall of what you are either teaching or watching. For example when i went to my friends house she has a projecter and we …watched 'Get Smart' on her big blank wall in her house and she projected it on this little machine that you put the DVD in and it comes out the lense.
The question dosnt make sense.
An optical device for projecting a beam of light . An optical instrument that projects an enlarged image onto a screen
Thomas Armat in 1893 invented the Kinetoscope aka the Projector.
a projector is an output device. A projector creates a video image and projects it on to an any surface.
LED projectors are very different than your typical DLP and LCD projectors as they do not require a typical projector lamp like their predecessors. Led projectors require less… maintenance than their counterparts and have much longer "lamp life" which is typically around 20,000 hours for an LED light source versus 2,000-4,000 for a conventional projector lamp. LED projectors use the light harnessed by individual laser diodes to create the light that is usually created through a standard type of bulb or lamp.
to find the degrees of an angle
Modern projectors are either LCD or DLP based panels. Most medium-to large projectors use a halogen light source. Small 'pico' projectors use a LED light source.
Data projectors are devices that project computer output onto a screen or wall. They are widely used in classrooms, offices, conference rooms, and auditoriums for instruction …and presentations.
Its the socket in the computer where the monitor or projector is plugged in
Projectors can be used for many different purposes. They can be used for presentations, such as PowerPoint presentations. They can also be used for home cinemas or for playing… games.
An overhead projector is used to project an image of a transparencyonto a wall or screen by means of an overhead mirror. There are also "slide projectors" that are used to di…splayphotographic slides on a wall or screen. A "projector" or "digital projector" would be used similar to acomputer monitor or a television screen that would display aninputted image from a variety of sources (blu-ray player, computer,laptop, dvd players, game console, etc.). In the case of aprojector the image is projected with the help of a light apparatusshining through a small silicon ship and projected through a lensto create an image on your wall or projector screen.