Converting XG-NV2U LCD Projector to SLM

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SUMMARY

The discussion centers on converting a Sharp XG-NV2U LCD Projector into a spatial light modulator (SLM) for projecting diffraction gratings. The user reports that the projector's panels are not interfacing correctly with the computer, despite voltage transmission when powered on. Attempts to send various image patterns to the panel have resulted in a black screen, indicating a failure in the modulation process. Clarification is sought regarding the feasibility of projecting diffraction gratings using the existing projector setup.

PREREQUISITES
  • Understanding of spatial light modulators (SLMs)
  • Knowledge of LCD projector components and functionality
  • Familiarity with optical principles, specifically diffraction
  • Basic troubleshooting skills for electronic devices
NEXT STEPS
  • Research the internal components of the Sharp XG-NV2U LCD Projector
  • Learn about interfacing SLMs with computer systems
  • Investigate methods for projecting diffraction gratings using SLM technology
  • Explore troubleshooting techniques for LCD projector panel issues
USEFUL FOR

This discussion is beneficial for electronics hobbyists, optical engineers, and anyone interested in modifying projectors for advanced optical applications.

knb2890
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I am currently trying to convert an old Sharp XG-NV2U LCD Projector into a spatial light modulator, and have gotten stuck. The panels don't seem to be interfacing with the computer anymore, which is a problem since I want to use them to project diffraction gratings. Using two polarizing lenses, I have blocked out all light when the projector is off, and then when I turn it back on light is transmitted. So a voltage is getting through, but I can't get any changes regardless of what I am trying to send to the panel (black screen, white screen, stripes, checkers...).
Any suggestions would be much appreciated.

Cheers!
 
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Hi and welcome to PF.
Could we have some more details?
Doesn't a normal data projector consist of a light source, followed by a SLM? I don't understand how you want to "project" a diffraction grating. You can project an image but not a grating. The grating can be formed on the panel inside the projector but how can an image of that grating do any 'diffracting' when it's on a screen? I am confused at the moment.
 

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