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The Geneva mechanism is an essential component of many film projectors which works in concert with other projector components such as the [[shutter]] in order to transform a film strip composed of static pictures into what appear to be "moving images". It is a mechanism which converts rotational motion into periodic motion.
The Geneva mechanism is an essential component of many film projectors which works in concert with other projector components such as the [[shutters|shutter]] and intermittent sprocket in order to transform a film strip composed of static pictures into what appear to be "moving images". It is a mechanism which converts rotational motion into periodic motion.


==The "dwell state"==
[[File:Geneva_mechanism.gif]]
 
===How it Works===
*Dwell state
*Pull-down


[[File:Geneva_mechanism.gif]]


==Resources==
==Resources==
*[https://en.wikipedia.org/wiki/Geneva_drive Wikipedia article on the Geneva Drive]
*[https://en.wikipedia.org/wiki/Geneva_drive Wikipedia article on the Geneva Drive]
* An article on the Geneva movement (or Maltese Cross mechanism) can be found here [https://erkanumut.wordpress.com/2015/01/18/4-important-info-projector/ here]
* Kodak Film Notes [http://www.film-tech.com/warehouse/manuals/H5006.pdf "The Intermittent Movement"]
* Kodak Film Notes [http://www.film-tech.com/warehouse/manuals/H5006.pdf "The Intermittent Movement"]
* A video animation and explanation of the Geneva movement can be found [https://www.youtube.com/watch?v=ZNV79Nb1qM8 here]
* A video animation and explanation of the Geneva movement can be found [https://www.youtube.com/watch?v=ZNV79Nb1qM8 here]
==See Also==


[[Category:Projector components]]
[[Category:Projector components]]
[[Category:Equipment]]
[[Category:Equipment]]