Albada type inverted galilean finder for camera

Apparatus and method for use in fulfilling illumination...

Apparatus for adjustable spherical aberration correction

Apparatus for enhancing collimation and improving collection eff

Apparatus for establishing substantially uniform...

Apparatus for projecting a line of light from a diode-laser...

Apparatus for projecting a line of light from a diode-laser...

Aspheric cylindrical lens and method of fabrication

Aspheric lens and method for making same

Aspheric lens for simultaneously collimating and shaping a laser

Aspheric lens structures and fabrication methods thereof

Aspheric plastic lens and mold for manufacturing the same

Aspherical fiber coupling lens

Aspherical glass lens element suitable for an object lens elemen

Aspherical lens with grating