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Artist Tina Escaja. Sound activated, Infrared proximity sensor, audio detector, custom Arduino code. And Spanish poetry engraved in legs by laser.
Conceived by Tina Escaja. Infrared proximity sensor, audio detector, custom Arduino code. And Spanish poetry engraved in legs by laser.
Describes how transparent objects may only retard light without diffracting it
Spatial deteil vs acceptance angle
Acceptance angle of objective must be wide enough to collect at least first order diffracted rays
Spatial filtering in the transform plane
Using a small aperture slider to remove diffracted orders in the transform plane eliminates detail in the image plane.
Object detail vs. acceptance angle
The finer the spatial detail in an object the wider the diffraction angle - easily seen with a laser pointer and a fine grating.
