Three-Element Objective Lens with Numerical Aperture of 0.85

Tae Kyung Kim,Young Man Ahn,Tatsuhiro Otsuka,Hae Jung Suh,Chong-sam Chung,Chul-woo Lee,Eiji Tanaka

Three-Element Objective Lens with Numerical Aperture of 0.85

2002

Tae Kyung Kim
Young Man Ahn
Tatsuhiro Otsuka
Hae Jung Suh
Chong-sam Chung
Chul-woo Lee
Eiji Tanaka

We have developed a three-element objective lens with a numerical aperture of 0.85 at 405 nm, which can correct chromatic aberration caused by mode hopping and wavelength change of the laser diode.

Keywords:

Simple lens
Numerical aperture
Laser diode
Optics
Chromatic aberration
Optical disc
Angular aperture
Wavelength
Coma (optics)
Physics
Optoelectronics

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