Cleaning the Light Engine

A view to the behind the lens of a digital projector's light engine. Somebody has to clean it?

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Caution Tech Stuff:
The image you see here is a digital projector light engine. Some 6-8 shots were taken and each one lit by a tiny pocket LED flashlight. The images were aligned in Photoshop and stacked into layers. All the layers were mixed together using the difference mix with opacities set of each layer set to taste. I wanted to give it a futuristic look. I added myself using strobes set down low to the floor. Not super but worth the effort. Enjoy?