There are three commonly used light sources for projectors: traditional bulb light sources, LED light sources, and green laser pointer light sources. In recent years, the development of the projection market has become more diversified. Business office, cultural entertainment, education and training, home use, etc., many markets have increasing demand for projection equipment, more projection equipment parts and consumables are needed. For the projector, the projection light source is the largest consumable.
What are the benefits of the traditional light source for projector bulbs that have not been eliminated after so many years? At present, there are several types of light sources for projector bulbs. Metal halide lamps are low in price and short in life. Generally, they do not exceed 2000 hours. After 1000 hours of use, the brightness of the bulbs will almost decrease by half.
The price of UHE lamp is moderate. It belongs to a type of ultra-high pressure mercury lamp, with a typical life of about 4,000 hours. It is generally used in low-end projectors, and the brightness will not decay much after long-term use, and the performance is relatively smooth. The UHP lamp, which is also an ultra-high-pressure mercury lamp, is a bit more expensive, but it has high brightness and long service life, and is mostly used for higher-end projection products. Nowadays, UHP lamps have frequently appeared in home projection products and commercial projection products. The use of green laser pointers is getting higher and higher.