Maxmartt PVR-802W Game L-a-s-e-r Lens Head DVD Replacement Repair Part
Maxmartt PVR-802W Game L-a-s-e-r Lens Head DVD Replacement Repair Part
Features:L-a-s-e-rhead move outward from center movement in the region of theTable-of-Contents, find location on the disk by emitting l-a-s-e-r, inducedresistance to accept to the reflected signal output into electronicdata.L-a-s-e-rhead is a the essential part of CD drive, and also is the mostsophisticated part.It is mainly used for data reading, so take specialcare when cleaning drive inside.L-a-s-e-rhead mainly includes l-a-s-e-r generator (also known as l-a-s-e-r diode),semi-reflective prism, objective lens, lens and photoelectric diode.Whenl-a-s-e-r head reads the data on disc, the l-a-s-e-r light from l-a-s-e-r generatorgoes through semi-reflecting prism and converges on the objective lens;lens will make l-a-s-e-r into extremely tiny points on CD.Becauseof the reflection material on the disc, light will reflect back,through the objective lens, then illuminate on semi-reflecting prism.Since prism is semi-reflecting, light beam can not goes through it completely, but reached the photo-diode through the lens.Due to the disc surface is uneven point to record data, so the reflected light will be in different directions;peopledefine different direction of signal as "0" or "1", light-emittingdiodes gets the data of "0", "1", and ultimately resolve them as thedata we need.Specifications:Model: PVR-802WExcitation Mode: Electric excitationOperation Mode: ContinuousWavelength Range: Visible lightLength: 4.8cm/1.88inWeight: 20g(approx.)Package Includes:1 x L-a-s-e-r Head
Product Features
- L-a-s-e-r head move outward from center movement in the region of the Table-of-Contents, find location on the disk by emitting l-a-s-e-r, induced resistance to accept to the reflected signal output into electronic data.
- L-a-s-e-r head is a the essential part of CD drive, and also is the most sophisticated part.It is mainly used for data reading, so take special care when cleaning drive inside.
- L-a-s-e-r head mainly includes l-a-s-e-r generator (also known as laser diode), semi-reflective prism, objective lens, lens and photoelectric diode.
- When l-a-s-e-r head reads the data on disc, the l-a-s-e-r light from l-a-s-e-r generator goes through semi-reflecting prism and converges on the objective lens; lens will make l-a-s-e-r into extremely tiny points on CD.
- Because of the reflection material on the disc, light will reflect back, through the objective lens, then illuminate on semi-reflecting prism.