Our Instruction manual contains experimental setups, principles, procedures, step-by-step instructions and required photographs to perform the experiment.
Holmarc's holographic kit is a professional set up for shooting holograms in academic and research institutions. The equipment includes vibration isolated table, optomechanical modules, optical components, sample silver halide plate, processing chemicals, etc. All components and modules used in the kit are of industrial quality and reliability. By changing the laser source and recording plates, the equipment can be used for commercial hologram shooting as well. In depth training in hologram making is given for all our customers free of cost at our holographic laboratory with either He-Cd or He-Ne lasers.
I.Creation of Transmission Grating
The experiment involves the creation of transmission grating using holography on a sliver halide plate. The grating pitch is governed by the angle between the two incident beams that hit on the plate. We provide all the optics, opto-mechanics, laser, holographic plate, developing chemicals to perform the experiment.
2.Recording and Reconstruction
of Transmission Holograms
To create a transmission hologram, laser beam is split into two. The beam reflected from the object is called object beam and the other one, a plane wave without any information, is called the reference beam. The exposure time varies from seconds to minutes depending on the object. Absolutely stable conditions are required during the exposure of the film. Variable beam splitters are provided to finely adjust the beam ratio.
To reconstruct the image, the plate is developed in the developer solution and is placed in its original position compared to the reference beam during its recording.
3.Recording and Reconstruction
of Reflection Holograms
The setup for the creation of reflection hologram is same as transmission hologram except the reference beam is lit from behind the plate. Controlling the beam ratio is very important in creating reflection holograms. We use variable beam splitter for the purpose.
In the case of reflection hologram, a truly threedimensional image can be seen near its surface. The hologram is illuminated by a “spot” of white incandescent light, held at a specific angle and distance located on the viewer’s side of the hologram.
