optical head reads the data on the disk, the light from the opticalgenerator passes through the semi-reflective prism and converges on the objective lens.The lens will make the light become a tiny spot on the CD. 2. The light head moves outward from the center in the directory area, finds a position on the disk by emitting light, and induces a resistance to receive the reflected signal and output it as electronic data.
3. The optical head is an indispensable part of a CD drive, and also the most complicated part. It is mainly used to read data, so be careful when cleaning the inside of the drive.
4. The light head mainly includes light generator , semi-reflective prism, objective lens, lens and photodiode. 5. Since the prism is semi-reflective, the light beam cannot pass through it completely, but reaches the photodiode through the lens.
Specifications:
Model: PVR-802W
Excitation Mode: Electric excitation
Operation Mode: Continuous
Wavelength Range: Visible light
Length: 4.8cm/1.88in
Weight: 20g(approx.)