Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings

Patent · Tue Mar 23 00:00:00 EST 1982

OSTI ID:6496926

Frank, A M; Edwards, W R

A long-lifetime light source is discussed with sufficiently low intensity to be used for reading a map or other writing at nightime, while not obscuring the user's normal night vision. This light source includes a diode electrically connected in series with a small power source and a lens properly positioned to focus at least a portion of the light produced by the diode.

• DOE Contract Number: W-7405-ENG-48
• Assignee: ERA-08-018418; EDB-83-051175
• Application Number: ON: DE83006875
• OSTI ID: 6496926
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
25 ENERGY STORAGE
LIGHT EMITTING DIODES
LIGHT SOURCES
DESIGN
ELECTRIC BATTERIES
LENSES
ELECTROCHEMICAL CELLS
RADIATION SOURCES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
420200* - Engineering- Facilities
Equipment
& Techniques
250904 - Energy Storage- Batteries- Other Applications