Modern rifles in combat scenarios have Anti Reflective Devices or ARDs. These devices allow light from directly ahead of the optic to pass through while eliminating off axis light. This means that the optic will not reflect light back at the target and will not give away the position of the shooter. Out of curiosity, designing such a device seemed like a good application for learning SLA 3D printing. This design has hex channels that are 14 mm deep. These channels block all light from greater than about 10 degrees off axis. In addition, an upper hood serves to shield the channels from sunlight that may reflect down them, Thus making the optic clearer in direct sunlight. While this is a fairly basic project, it served as a good exercise for setting up and using my SLA printer.
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