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Wankeda laser pick-up unit has 0.45 NA

Posted: 09 Apr 2003 ?? ?Print Version ?Bookmark and Share

Keywords:Wankeda industrial? skd b13? laser pick up? optoelectronic component?

The SKD-B13 laser pick-up unit of Wankeda Ind. Co. Ltd operates over the 760nm to 800nm wavelength and exhibits a numerical aperture (NA) of 0.45. The device uses the astigmatism method for focus signal detection and exhibits a focus length of 3.86mm at working distance of 2.1mm. It also produces a phase difference within 110 percent.





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