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Price: $8.99
Build Long Range Laser Window Bounce Listeners and Optical Voice Communication Systems Remarkable concept where you listen to sounds picked up from a reflecting surface illuminated by a laser. These light reflections, or scatter, are reproduced back to the original sound by our special optical receiver. Assembled laser and receiver modules may be placed on video tripods and temporarily aligned for limited performance demonstration systems. They may also be enclosed as shown in the instructions for use as a field worthy device with a potential range of up to 500 feet. May also be used as a long range laser voice communicator for up to miles line of sight. Low cost audio surveillance science project or useful device for listening to power line faults, over pressurlzed pipes, etc.. Plans show 3 systems ranging from a low cost science project to a long range infra red surveillance system. Includes LVC1 long range optical voice communication system. LWB9 - Plans and Data for All Systems.
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