theaudiotweak wrote,
”The tray assembly and surrounding parts have been treated for years. My comments were to color not just the tray but all the other surfaces that refract light. The whole damn innards of the chassis if possible.”
>>>>>Tom, no offense but you are confusing the terms diffraction, refraction and reflection. Refraction occurs when light passes through a different medium such as when light passes from air through glass. Diffraction occurs when light strikes a slit or sharp obstacle such as a diffraction grating. Reflection occurs when light strikes a flat surface such as a mirror or when the CD laser strikes the flat metal layer of the CD. It’s the reflected light that enters the photodetector. Obviously it’s a little more complicated with the pits and lands. The CD red/infrared laser undergoes refraction passing through the CD polycarbonate layer, and changes wavelength, the light changes back to its original wavelength when it leaves the polycarbonate and reenters the air.
You still haven’t answered the fundamental question - what about the invisible light? You can paint the entire CD player turquoise and the majority of the CD laser scattered will not (rpt not) be absorbed by the turquoise color. It’s invisible!
”The tray assembly and surrounding parts have been treated for years. My comments were to color not just the tray but all the other surfaces that refract light. The whole damn innards of the chassis if possible.”
>>>>>Tom, no offense but you are confusing the terms diffraction, refraction and reflection. Refraction occurs when light passes through a different medium such as when light passes from air through glass. Diffraction occurs when light strikes a slit or sharp obstacle such as a diffraction grating. Reflection occurs when light strikes a flat surface such as a mirror or when the CD laser strikes the flat metal layer of the CD. It’s the reflected light that enters the photodetector. Obviously it’s a little more complicated with the pits and lands. The CD red/infrared laser undergoes refraction passing through the CD polycarbonate layer, and changes wavelength, the light changes back to its original wavelength when it leaves the polycarbonate and reenters the air.
You still haven’t answered the fundamental question - what about the invisible light? You can paint the entire CD player turquoise and the majority of the CD laser scattered will not (rpt not) be absorbed by the turquoise color. It’s invisible!