US 11,988,357 B2
Building egress lighting apparatus and system
Daniel S. Spiro, Scottsdale, AZ (US)
Assigned to EXPOSURE ILLUMINATION ARCHITECTS, INC., Scottsdale, AZ (US)
Filed by Exposure Illumination Architects, Inc., Scottsdale, AZ (US)
Filed on Aug. 4, 2023, as Appl. No. 18/230,215.
Application 18/230,215 is a continuation in part of application No. 18/113,098, filed on Feb. 23, 2023, granted, now 11,788,692.
Application 18/113,098 is a continuation in part of application No. 17/843,540, filed on Jun. 17, 2022, granted, now 11,629,852, issued on Apr. 18, 2023.
Application 17/843,540 is a continuation in part of application No. 17/830,439, filed on Jun. 2, 2022, granted, now 11,573,005, issued on Feb. 7, 2023.
Prior Publication US 2023/0417380 A1, Dec. 28, 2023
Int. Cl. F21S 8/00 (2006.01); F21V 14/00 (2018.01); F21V 21/08 (2006.01); F21V 21/40 (2006.01); F21V 23/02 (2006.01); F21V 29/71 (2015.01); F21W 131/402 (2006.01); F21Y 103/00 (2016.01)
CPC F21S 8/033 (2013.01) [F21V 14/006 (2013.01); F21V 21/08 (2013.01); F21V 21/40 (2013.01); F21V 23/023 (2013.01); F21V 29/71 (2015.01); F21W 2131/402 (2013.01); F21Y 2103/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A reduced form light emitting apparatus comprising:
a heat dissipating structure that has a surface substantially aligned in parallel with an elongated path of egress below;
a light source that is retained in the heat dissipating structure, the light source emits light;
an optical lens that covers the light source and redirects the light that is emitted from the light source to form an elongated linear light beam downwardly and away from the reduced form light emitting apparatus and onto the elongated path of egress below;
a retaining structure that is electromechanically coupled to the light emitting apparatus, wherein
the reduced form light emitting apparatus is configured to rotate about a vertical axis thereof so as to align a center beam of elongated linear light beam with a longitudinal axial center of the elongated path of egress below,
a longitudinal beam angle of the elongated linear light beam is greater than a traverse beam angle of the elongated linear light beam with respect to a common nadir, and
within and on at least a 3′0″ wide surface of the elongated path of egress that extends up to 70′-0″ long, average light levels provide by the elongated linear light beam are equal to or greater than 1.0 foot candles (FCs) with a maximum to minimum uniformity ratio equal or smaller than 5:1 while the light source consumes no greater than 0.05 watts/Square feet to produce the elongated linear light beam.