As applicable to programmable optical shutters, a system of infrared emitting diodes, infrared sensitive detecting transistor and interrupting vane and associated circuitry. The system provides feedback signals associated with the open/closed status of the shutter to users.
SPHERICAL VS. ASPHERIC LENSES
HOW THEY’RE USED IN IMAGING APPLICATIONS
Optical Lenses are often categorized by their shape. Two common surface shapes are spherical and aspherical. Each offers unique characteristics that make it suitable for different use cases.