(n) A descriptive geometry technique (sometimes referred to as the natural method) that places the observer at an infinite distance from the object, with the observer's line of sight perpendicular to the geometry in question. In third-angle projection, a projection plane is placed between the observer and the object, and the geometry is projected onto the projection plane.
Is a type of display that does not use a lens system to create an image. CRT, LCD and plasma displays are common types of these.
Type of display viewed on the electronic display device itself as opposed to projected onto a passive screen or through a passive lense.
A television based upon direct view CRT technology. While rear projection CRT TVs use CRTs, they are not viewed directly but rather are reflected.
This is the standard type of TV we have been used to, where the CRT projects the image directly on to the glass. For people on a modest budget this is a good option, but always go for the flattest screen possible.
Often referred to as a CRT or tube television, a direct view TV is the closest thing to the one baby boomers watched when they were kids. All science aside, CRTs come in basically all shapes and sizes up to about 40-inches. They feature a good picture from all angles, the best black level, and are significantly lower in price than other TV’s. However, they are bulky and heavy, but retain a good picture for many years.
A term used to refer to active matrix liquid crystal displays (LCDs), cathode ray tubes (CRTs), plasma displays, and other displays that create the exact image that the user views. In contrast, projection displays need magnification optics to create the final image that is viewed.
A display device with a picture tube, like a standard TV set, instead of front/rear projection.