Optical pickup device

Optical pickup device

  • CN 1,553,440 A
  • Filed: 01/22/2000
  • Published: 12/08/2004
  • Est. Priority Date: 01/22/1999
  • Status: Abandoned Application
First Claim
Patent Images

1. one kind is used to reproduce from the information of optical information recording media or is used for information is recorded optic probe device on the optical information recording media, comprising:

  • Be used to send first light source of first luminous flux with first wavelength, being used for having thickness is that second optical information recording media of the transparent substrates of t1 carries out the information record and/or reproduces;

    Be used to send the secondary light source of second luminous flux with second wavelength, second wavelength is greater than first wavelength, and being used for having thickness is that first optical information recording media of the transparent substrates of t1 carries out the information record and/or reproduces;

    Be used to send the 3rd light source of the 3rd luminous flux with three-wavelength, three-wavelength is greater than second wavelength, and being used for having thickness is that the 3rd optical information recording media of the transparent substrates of t2 carries out the information record and/or reproduces, and t2 is greater than t1;

    Object lens, first light flux concentration that to send from first light source when second optical information recording media being carried out recording of information and/or reproducing is to the information recording surface of second optical information recording media, second light flux concentration that to send from secondary light source when first optical information recording media being carried out recording of information and/or reproducing is to the information recording surface of first optical information recording media, on the information recording surface of the 3rd light flux concentration to the three optical information recording medias that will send from the 3rd light source when the 3rd optical information recording media being carried out recording of information and/or reproducing;

    AndPhotodetector.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×