REALIZATION OF A BI-ASPHERICAL OBJECTIVE LENS FOR THE PHILIPS VIDEO LONG PLAY SYSTEM

被引：12

作者：

HAISMA, J

HUGUES, E

BABOLAT, C

机构：

[1] Philips Research Laboratories, Eindhoven

[2] Centre de Recherches et de Calculs Optiques, Courbevoie, 92400

来源：

OPTICS LETTERS | 1979年 / 4卷 / 02期

关键词：

D O I：

10.1364/OL.4.000070

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An objective lens for focusing monochromatic laser light on an optical video disk has been machined in polymethyl methacrylate on a lathe numerically controlled by a computer. The objective is a single-element lens and has two steeply aspherical surfaces. It has a numerical aperture of 0.43, and its field has a diffraction-limited quality over a radius of 300 μm. Some details of the computer-numerically controlled hydraulic lathe are given. © 1979, Optical Society of America.

引用

页码：70 / 72

页数：3

共 11 条

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[2]

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[3]

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[4]

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[5]

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[6]

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[9]

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[10]

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