DAVID F BELANGER
Engineering in Raynham, MA
License number
Massachusetts 47557
Issued Date
Jun 24, 2008
Expiration Date
Jun 30, 2018
Type
Civil Engineer
Address
Address
Raynham, MA 02767
Personal information
See more information about DAVID F BELANGER at radaris.comName
Address
Phone
50 Clark St, Ludlow, MA 01056
60 Puritan Way, Duxbury, MA 02332
336 Pearl St, Cambridge, MA 02139
32 City Hall Sq APT 202, Lynn, MA 01901
3 Palmer Ave, North Adams, MA 01247
Professional information
Laser Lighted Guidance Exit Indicator
US Patent:
2009009, Apr 16, 2009
Filed:
Oct 13, 2008
Appl. No.:
12/250441
Inventors:
David Belanger - Raynham MA, US
International Classification:
G09F 9/33
US Classification:
34081545
Abstract:
A lighted exit sign equipped with laser guidance capability is provided. The laser lighted guidance indicator includes at least one printed circuit (PC) board and associated circuitry for controlling the beam pattern of at least one Light Emitting Diode (LED) laser via at least one reflection device associated with the at least one LED laser. The evacuee is directed towards the exit by following the converging LED laser lights. The lighted exit sign may also include includes a display area and display microprocessor for controlling the display area. The display area may display alternate emergency messages such as “EXIT” and “SALIDA” or other language equivalents. The PC board, laser LEDs and reflectors are enclosed within a waterproof, shockproof, vibration tolerant, and theft deterrent enclosure.