Manufacturers that provide high-quality label nameplates OEM services.
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Manufacturers that provide high-quality label nameplates OEM services.
A slide projector is a projector used to browse slides. It has four main components: a light bulb (or other light source) cooled by a fan, a reflector and a focusing beam lens, a slide tray, and a focusing lens. A piece of glass that absorbs heat is installed between the focusing lens and the slide to prevent damage to the slide. This glass allows visible light waves to pass through and absorb infrared rays.
After the light source passes through the slide and the lens, an enlarged image is generated, which is projected on the projection screen at a vertical angle, so that the audience can see the image. In addition, the image can also be projected on the other side of the projection screen. In this way, the audience will not interfere with the projection of the light when walking, and will not accidentally hit the projector, but the projection screen must be translucent, otherwise the audience You can't see the image.
Slide projectors were quite common in the 1950s and 1960s, mainly for entertainment purposes, and family and friends would gather to enjoy the slides. Nowadays, because of the widespread popularity of low-cost paper publications, digital cameras, DVD media, liquid crystal displays, and digital projectors, slide projectors have been replaced.
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We (Alice) are a professional manufacturer of furniture nameplates, focusing on providing supporting services for the furniture industry, machinery industry, electronic and electrical industry and other industries, mainly producing zinc alloy, aluminum, stainless steel, copper, brass, pvc, etc. Label.
Contact us E-mail: sales03@alicelogo.com
Alice has dedicated to precise product since it was established in 1998, especially focus on furniture and electronic appliances field as a tendency.
