Projector PCB Board Reverse Engineering

Projector PCB Board Reverse Engineering will be able to extract schematic diagram, netlist from original printed circuit board, through schematic drawing to restore electronic projector circuit board layout diagram, gerber file, and de-solder the components off the PCB card to make BOM List;

The principle of the projector and its structure, below we will specifically describe the principle of the projector on the structure of the projection combiner.

The structure of the projector mainly includes a light source, a light collecting system and a plane mirror. The light generated by the light source first passes through the condensing system of the projector, condenses the light and emits it on the plane mirror, and is reflected by the plane mirror into parallel light and mapped onto the screen, thus realizing the function of projection.

The condenser system of the projector is composed of a condenser, an auxiliary condenser, a threaded lens and a glass. Threaded lens, also known as Fresnel lens, is composed of two thin flat plexiglass plates engraved with concentric circular threads. It has a large diameter, light weight, and good light transmission. It can act as a large-diameter convex lens.

However, it can only work below 70oC. When this temperature is exceeded, it will cause deformation and reduce the life of the projector. The auxiliary condenser, or crescent lens, is located between the light source and the condenser to reduce the surface temperature of the Fresnel lens.

The loading glass is located on the threaded lens, which can not only show the projection film, but also write, and can also be used as a demonstration of some experiments or teaching aids.

Tags: umgekehrtes Design Elektronische Leiterplatte des Projektors,umgekehrtes Design Projektor-Leiterplatte,umgekehrtes Design Projektor-Schaltkarte