NASA Center: Marshall Space Flight Center
Public Release Year: 1994
Reference Number: MSFC-SO-158
Category: Industrial Productivity/Manufacturing Technology
Origin: Photodetector Technology
When power outages occurred at Landmark Plastic Corporation, it took seven to twelve minutes for the primary mercury lamps to cool down enough to relight and two to seven minutes for the ELS incandescent lamps to relight. Production could not resume for as much as seven minutes. An article in NASA Tech Briefs describing the capabilities of photosensing devices led Landmark employee, Steve Keller to design a system now activated by any voltage loss in the main lamp circuit and coupled with photosensing devices used to keep them on until the primary mercury lamps reach full brightness.
Page Number in Published book: 115
Manufacturer: LANDMARK PLASTIC CORP., MAINTENANCE DEPARTMENT