The service life of HLD is also similar to that of green laser pointer, which can theoretically reach about 20,000 hours. But compared with laser, HLD has higher tolerance, which means HLD has a longer life at the same temperature. It is well known that the temperature inside the projector is high, so this will affect the life of the laser. From this perspective, HLD has advantages over laser.
HLD started three years later than laser and has only recently made its debut in the market in recent years. Especially in 2018, traditional projections such as NEC and Panasonic have launched brand-new HLD projectors. According to the author’s news, the established manufacturer Sharp also has a layout in the field of HLD. I think there will be more HLD products coming into the market in the future.
Secondly, education users pay less attention to the price of the whole machine, but rather care about the service life and color performance of the light source, and HLD just has better color and longer service life than the monochromatic laser. In addition, the HLD light source is a three-color light source, and the color wheel is no longer needed for color separation, so the color has no rainbow phenomenon. These have made the green laser pointer a new favorite in the education market.