Design of aspheric lens for optical head of video disc player 影碟机激光头非球面物镜的设计
The radial and tangential tilt angles between the emission laser axis of objective lens and test disc are the key parameters to develop, produce and detect the DVD traverses. DVD小机芯物镜出射光主光轴与盘片在切向和径向的倾角是DVD小机芯开发、生产和检测的两个重要参数。
In order to fabricating high precise aspherical plastic lens, especially optical disc lens, we should adopt injection compression forming technology to delimitate deformation, in addition compensating moulds to consider deformation. 为了制作以光盘物镜为代表的高精度非球面塑料透镜,就应采用注射压缩工艺抑制变形的成形技术,辅之以考虑变形而补偿模具的成形技术。
In this thesis, a new type of optical pick-up objective lens ( OL) for next-generation versatile disc ( NVD) system of red-laser-high-definition optical storage system, is designed. 本文设计了一种适用于红光高清光电存储(Next-generationVersatileDisc,简称NVD)光学头的新型物镜。
Injection-compression molding ( ICM), which can solve internal stress problems effectively, was widely used in optical lens and compact disc and μ class of accuracy standard product in manufacture area. 注射压缩成型工艺是一项能有效解决制品内应力问题的生产技术,广泛应用于光学透镜、光盘以及μ级精度要求的产品的生产领域。