18 September 2000 Two-element objective lens and spherical aberration correction for digital video recording (DVR)
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Proceedings Volume 4090, Optical Data Storage 2000; (2000); doi: 10.1117/12.399367
Event: Optical Data Storage, 2000, Whistler, BC, Canada
Abstract
This paper describes the advancements we have made in developing objective lenses and actuators for Digital Video Recording (DVR), which we see as the third generation in optical disk recording. Two generations of DVR prototype systems are presented. The first is an actuator to adjust the inter-lens distance of the two-element objective lens for spherical aberration correction, mounted in a focus/tracking actuator. The second prototype is a more efficient and faster focus/tracking actuator with a rigid two-element objective lens accompanied with an adjustable collimator lens for spherical aberration correction. The latter system is implemented into a prototype bit-engine.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Patrick Smulders, Jan P. Baartman, Jan W. Aarts, Benno H. W. Hendriks, "Two-element objective lens and spherical aberration correction for digital video recording (DVR)", Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399367; https://doi.org/10.1117/12.399367
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KEYWORDS
Actuators

Digital video recorders

Objectives

Collimators

Monochromatic aberrations

Prototyping

Wavefront aberrations

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