Optical: systems and elements – Lens – With support
Reexamination Certificate
2007-01-30
2007-01-30
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Lens
With support
C359S819000, C359S813000, C359S823000
Reexamination Certificate
active
10363265
ABSTRACT:
An objective lens unit used for an optical pickup device is made up of a plurality of lenses and has a numerical aperture (NA) not less than 0.7. The lenses (1) and (2) are secured within a cylindrically-shaped lens holder (3). The position of the lens(es) (2) other than one of the lenses secured within the lens holder is set with the position of the one lens (1) as reference.
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Maeda Fumisada
Nagashima Shinichi
Harrington Alicia M
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
Thomas Brandi
LandOfFree
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