摘要
分析了制作大幅面大场景激光再现全息图对激光器及光路布置、记录介质、化学处理等方面的特殊要求 ,用自制的颗粒平均尺寸为 2 0nm的超细颗粒卤化银全息干板及带标准具的氩离子激光器 ,对场景面积达 1 60× 1 80cm的苏州工业园区等模型作全息记录 ,经适当曝光和化学处理 ,制得了幅面达 50× 40cm ,且具有较高衍射效率和较低噪声的透射全息图。将全息图安装在专门设计的紧凑装置上 ,用 70mW绿光二极管激光器照明再现 ,在北京展览馆建国五十周年成就展江苏馆展出时 ,获得了令人满意的视觉效果。
The requirements for lasers,optical setups,recording materials and chemical processing to make large format holograms of great scenes are discussed.A model of Suzhou Industrial Park measuring 160×180cm,and other large models were recorded using an argon ion laser with an etalon on self prepared ultra fine grain silver halide plates(average grain size:20nm).Large format transmission holograms (size:50×40cm) of high diffraction efficiency and low noise level were obtained with proper exposure and chemical processing.The holograms mounted in a specially designed compact frame and illuminated with a 70mW green diode laser showed very good visual effect in the Jiangsu Hall of the China's Achievements Exhibition for the 50 th Anniversary of the Founding of the P.R.China.
出处
《激光杂志》
EI
CAS
CSCD
北大核心
2000年第4期23-24,共2页
Laser Journal
关键词
大场景大幅面全息图
二极管激光器
全息照相
large format holograms,ultra fine grain silver halide emulsions,laser diodes
