Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Object and Film

物体和胶片

 This is an object and film arrangement for the direct beam reflection hologram. Note the film is in front of the object to be photographed. The film must be very rigidly mounted for this type of hologram. The object should be very close to the film - the closer, the brighter the holographic image. (5cm max, try for 1 cm).
这是一种用于直接光束反射全息图的物体和胶片布置。请注意，胶片位于被拍摄物体的前面。对于这种类型的全息图，胶片必须非常牢固地安装。物体应非常接近胶片——越近，全息图像越亮。(最大5厘米，尝试使用1厘米。)
 Index
索引
  HyperPhysics***** Physics 3901 ***** Holography
HyperPhysics ***** 物理学 3901 ***** 全息术
 Go Back
返回





Beam-Spreading Lens

发散透镜
 Close and distant views of beam spreading lens for the direct beam reflection hologram.
近景和远景的光束扩展透镜用于直接光束反射全息图。
 Index
索引
  HyperPhysics***** Physics 3901 ***** Holography
HyperPhysics ***** 物理学 3901 ***** 全息术
 Go Back
返回





Adjusting Beam for Exposure

调整曝光

 To make use of all the film, the beam should be adjusted to so that the central 2/3 of the beam covers the film. (The gaussian distribution of beam intensity puts most of the energy there.)
为充分利用整个胶片，应调整光束使中央2/3的光束覆盖胶片。（高斯分布的光束强度将大部分能量集中在该区域。）
 Index
索引
  HyperPhysics***** Physics 3901 ***** Holography
HyperPhysics ***** 物理学 3901 ***** 全息术
 Go Back
返回