The name pico-projector first appeared in November 2008 during the Optoma advertising campaign, which introduced the PK101 pico projector. Already in October 2006, the company publicly demonstrated the first Explay Nano Projector. The story of their appearance on the market begins in 2003, when the Israeli Explay company announced the development of mini projector. But many companies often use the terms mini, pocket or portable.
Such models are often called pico projectors. Of course, compactness has become one of the main directions of their improvement. Of course, any modern electronics morally becomes obsolete over such a period.Īs a result, new compact light sources provoked the appearance of a whole segment of LED projectors. As known, LEDs and laser LEDs practically do not heat up, and their service life reaches 30,000 hours, which corresponds to more than 10 years of active use. Increasing their radiation power and lifetime allowed engineers to use LEDs as a light source in the projectors. But successful semiconductor light sources development has radically changed the situation. As a result, such models require a large internal volume for heat dissipation and a powerful cooling system with a high noise level. Unfortunately, they have a limited resource, high cost and high heat dissipation.
As known, projectors traditionally used powerful lamps as a light source.
