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With 8% of global market share, the Optoma brand in 2011 was the second largest projector brand, behind the Japanese company Epson. There are two specifications of projectors: a liquid-crystal display (LCD) projector that Epson makes and a Digital Light Processing (DLP) projector using chipsets Texas Instruments that Optoma makes. [1]
Epson owns the technology and has branded it as "3LCD". To market 3LCD projector technology, Epson also set up a consortium called the "3LCD Group" in 2005 with other projector manufacturer licensees of 3LCD technology that use it in their projector models. Early LCD systems were used with existing overhead projectors.
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens , but some newer types of projectors can project the image directly, by using lasers .
Epson entered the personal computer market in 1983 with the QX-10, a CP/M-compatible Z80 machine. By 1986, the company had shifted to the growing PC market with the Equity line. EPSON manufactured and sold NEC PC-9801 clones in Japan. Epson withdrew from the international PC market in 1996.
A video projector (lens) with a throw ratio of 0.4 or less would be positioned relatively close to the screen, and would be considered a "short throw projector". [3] A video projector that must be positioned very far from the screen would need a "long throw lens" with a throw ratio like 7.5.
A projector in a standard form factor: The PG-D2870 projector from Sharp, which uses Digital Light Processing technology An image from a video projector in a home cinema. A video projector is an image projector that receives a video signal and projects the corresponding image onto a projection screen using a lens system.
Industrial laser projectors have been on the market since the early 2000s. Laser projectors are mainly used as optical guidance systems. They enable working without templates in many manufacturing processes by showing directly on the workpiece how material needs to be positioned or mounted, so that the employee is led by manual or semiautomatic productional processes visually.
In contrast, a modern LCD or DLP projector often uses an Ultra-high-performance lamp which has a higher luminous efficacy and lasts for thousands of hours. [5] A drawback of that technology is the warm up time required for such lamps. Older overhead projectors used a tubular quartz bulb which was mounted above a bowl-shaped polished reflector.
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1747 Olentangy River Rd, Columbus, OH · Directions · (614) 299-9425