Adaptive liquid crystal lenses
Apparatus for enhancing depth of focus using birefringent materi
Bi-curvature lens for light emitting diodes and photo detectors
Device for equalizing light strength of light source
Diffraction type lens and optical pickup apparatus using the...
Dual focus lens with extended depth of focus
Dual-focus objective lens of optical pickup
Extended depth of field imaging system using chromatic...
Lens for angularly overlapping a central portion of an...
Lenses capable of post-fabrication modulus change
Light collecting optical device forming a multiple focal...
Multi-facet lens component
Multi-focal length miniature refractive element and method...
Multi-focus system for a low light level vision apparatus
Objective lens for optical pick-up
Optical lens and method of producing the same, method of...
Optical pickup apparatus and objective lens
Optical pickup apparatus and objective lens
Optical system, and optical apparatus
Optical systems including a chromatic diffractive optical...