Experiment of copying hologram by contact method
JIN Qing-li (College of Physics and Electronic Information, Wenzhou University, Wenzhou 325035, China)
Copying hologram by the contact method requires close contact of the original hologram with the subject plate before light exposure. After exposure, development and fixation, a new copy of the original hologram is obtained. By using low-power Na light source, the Fresnel hologram is copied. Although the definition of image reproduced from the copied hologram is lowered, the overall quality of the image is good.