›› 2007, Vol. 26 ›› Issue (5): 35-35.

• 著者文摘 • Previous Articles     Next Articles

Measurement of track pitch of the optical disk and signal trace length

  

  • Online:2007-05-25 Published:2007-05-20

Abstract: From structure of optical disk, its signal trace can be viewed as a reflection grating, so track pitch of optical disk and the length of the signal trace on a CD can be measured.

Key words: optical disk, track pitch, signal trace, reflection grating

CLC Number: 

  • O4-34