Difference between Holography and Photography
Last Updated :
09 Sep, 2019
Holography and photography are two different techniques to generate images.
Holography:
It is the technique used to generate 3-dimensional images using the phenomenon of Interference and diffraction of light. It uses monochromatic and coherent source of light and a hologram is needed to regenerate the image.
Photography:
It is the technique used to generate 2-dimensional images of an 3-dimensional object. In this light reflect from the object strike on the photographic film and react with the chemical coating of the film. A lens is needed to focus the object on the photographic plate.
Difference between Holography and Photography:
S.NO |
Holography |
Photography |
1. |
Holography is used to generate 3-dimensional images. |
Photography is used to generate 2-dimensional images. |
2. |
Phenomenon used in holography is interference and diffraction of light. |
It uses reflection of light by the object to the photographic film. |
3. |
Source of light should be monochromatic and coherent. |
No special type of light source is needed. |
4. |
No lens are required to generate the holograph. |
Lens are required to focus on the object and generate the photograph. |
5. |
Holography has high information capacity. |
Photography has less information capacity than holography. |
6. |
Multiple images can be superimposed together. |
Multiple images can’t be superimposed together. |
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