Media.Player

一種用於增強藍光光盤和中國高清光盤衍射效率的透鏡

总结

The utility model relates to a lens used for improving the diffraction efficiency of a blue-ray disc and a China high definition disc, which comprises a first lens surface (1) and a second lens surface (2), wherein the first lens surface is a free curved surface, and the second lens surface is an aspheric surface; the first lens surface and the second lens surface are used for focusing incident light into a focal zone; and the focal zone comprises an information recording layer (31) focused on the blue-ray disc, and an information recording layer (41) focused on the China high definition disc. Due to a phase control structure, the diffraction efficiency of the lens corresponding to the blue-ray disc and the China high definition disc can be improved, the energy loss is reduced, and the stray light is improved.

附加资料

Inventor: DU, Xue | LI, Rong-bin | LI, Li-hua | WANG, Wen-kui
Priority Number: CN202258325U
IPC Current: G11B00071372 | G11B00071353
Assignee Applicant: The Hong Kong University of Science and Technology
Title: Lens used for improving diffraction efficiency of blue-ray disc and China high definition disc | A kind of used for reinforcing blue-ray disc and the Chinese high definition CD diffraction efficiency
Usefulness: Lens used for improving diffraction efficiency of blue-ray disc and China high definition disc | A kind of used for reinforcing blue-ray disc and the Chinese high definition CD diffraction efficiency
Summary: Lens structure for reinforcing Blu-ray disk and high definition compact disk (CD).
Novelty: Lens structure for reinforcing high definition compact disk (CD), has free curved lens surface and aspheric lens surface that are provided to focus incident light to focusing area

主要类别

电子

细分类别

计算机，通信和消费电子产品 /小工具

其他

LEE Wing Bun
TO Sandy
LI Lihua
WANG Wen Kui

国家/地区

中国内地