Optical pickup system for reading information recorded on an opt

Optical pickup system for reading optical disks of different thi

Optical pickup system for selectively reading a multiple number

Optical pickup system having an integrated twin focusing beam sp

Optical pickup system incorporated therein a polarizing film and

Optical pickup system with five longitudinal splitted detection

Optical pickup that uses light sources with different...

Optical pickup to circularize light emitted from a light source

Optical pickup unit

Optical pickup unit and information recording/reproduction...

Optical pickup used with both DVD and CD

Optical pickup used with both DVD and CD

Optical pickup using a lamp

Optical pickup using a plano-convex lens as an objective lens fo

Optical pickup using an optical phase plate

Optical pickup using an optical phase plate

Optical pickup using an optical phase plate

Optical pickup using an optical phase plate

Optical pickup using laser light of different wavelengths to...

Optical pickup using objective lens compatible with a...