发明授权
US5231624A System and method using a reduce profile light beam for high density
recording on optical media
失效
使用减少轮廓光束在光学介质上进行高密度记录的系统和方法
- 专利标题： System and method using a reduce profile light beam for high density recording on optical media
- 专利标题（中）： 使用减少轮廓光束在光学介质上进行高密度记录的系统和方法
-
申请号： US738768申请日： 1991-08-01
-
公开(公告)号： US5231624A公开(公告)日： 1993-07-27
- 发明人: Joel D. Finegan
- 申请人： Joel D. Finegan
- 申请人地址： TX Ft. Worth
- 专利权人： Tandy Corporation
- 当前专利权人： Tandy Corporation
- 当前专利权人地址： TX Ft. Worth
- 主分类号： G11B7/135
- IPC分类号： G11B7/135
摘要：
A system and method for recording on optical storage media utilize a beam projection assembly including a collimating lens and an objective lens. By providing an incident light beam having a substantially constant energy distribution to the objective lens, the radius of the spot projected on the optical media having an intensity greater than a threshold intensity may be increased. The radius may be further decreased by modifying the optics of the objective lens, typically by providing a center stop plate on the lens or by providing a one-half wavelength plate on the lens.
公开/授权文献
信息查询
IPC分类:
