Optical Tolerances of an Actively Tilted High-Numerical-Aperture Two-Lens Objective for Optical Recording
Applied Optics, Vol. 37, Issue 35, pp. 8195-8205 (1998)
http://dx.doi.org/10.1364/AO.37.008195
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Abstract
Analytical expressions for the primary wave-front aberrations of an actively tilted two-lens objective are derived, and expressions for the higher-order wave-front aberrations for disk tilt of this lens system are presented. This analysis is important because the two-lens objective opens the way to achieving higher-numerical-aperture systems for optical recording with acceptable tolerances that cannot be achieved with a single-lens objective. To test whether the conclusions drawn from the analytically derived results remain valid for high numerical apertures, we compare the results with those obtained by ray tracing: It is shown not only that the two-lens system is tolerant of disk-thickness variations and decentering of the lenses but that it can also be made tolerant of disk tilt when the lens facing the disk is actively tilted.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(080.0080) Geometric optics : Geometric optics
(080.1010) Geometric optics : Aberrations (global)
(080.2740) Geometric optics : Geometric optical design
(210.4770) Optical data storage : Optical recording
(220.1000) Optical design and fabrication : Aberration compensation
Citation
Benno H. W. Hendriks, "Optical Tolerances of an Actively Tilted High-Numerical-Aperture Two-Lens Objective for Optical Recording," Appl. Opt. 37, 8195-8205 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-35-8195
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