Xie Yongjun, Lu Zhenwu, Li Fengyou
Opt Express. 2004 May 3;12(9):1810-4. doi: 10.1364/opex.12.001810.
We fabricated a large curved computer-generated hologram pattern on the concave substrate with diameter of 110mm and radius of curvature of 504mm. The line width of the hologram varied form 39um to 810um. We adopt the single pass and the screw-lines to fabricate this curved hologram precisely and efficiently. 80% of the fabrication time is saved by this method. This work will be useful to the measurement of large convex secondary mirrors that is also hardness at present.
我们在直径为110毫米、曲率半径为504毫米的凹形基底上制作了一个大型弯曲的计算机生成全息图图案。全息图的线宽从39微米变化到810微米。我们采用单次通过和螺旋线的方法精确高效地制作这个弯曲全息图。通过这种方法节省了80%的制作时间。这项工作将有助于目前同样具有挑战性的大型凸面副镜的测量。
