US 11,815,257 B1
Underwater lights with port windows including lens features for providing tailored output beams
Eric M. Chapman, Lake Tapps, WA (US); Mark S. Olsson, La Jolla, CA (US); Steven C. Tietsworth, San Diego, CA (US); and Aaron J. Steiner, San Diego, CA (US)
Assigned to SEESCAN, INC., San Diego, CA (US)
Filed by SeeScan, Inc., San Diego, CA (US)
Filed on Apr. 13, 2020, as Appl. No. 16/847,071.
Application 16/847,071 is a continuation of application No. 15/894,868, filed on Feb. 12, 2018, granted, now 10,627,076, issued on Apr. 21, 2020.
Claims priority of provisional application 62/457,999, filed on Feb. 12, 2017.
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 5/00 (2018.01); F21V 5/04 (2006.01); F21L 4/02 (2006.01); F21V 31/00 (2006.01); F21Y 105/18 (2016.01); F21Y 115/10 (2016.01); F21Y 115/30 (2016.01); F21Y 105/10 (2016.01)
CPC F21V 5/007 (2013.01) [F21L 4/02 (2013.01); F21L 4/027 (2013.01); F21V 5/006 (2013.01); F21V 5/048 (2013.01); F21V 31/00 (2013.01); F21Y 2105/10 (2016.08); F21Y 2105/18 (2016.08); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08)] 19 Claims
OG exemplary drawing
 
1. An underwater light, comprising:
a housing configured to withstand underwater pressures at a depth of approximately 100 meters or more, the housing having a front end with a port and a back end;
a port window, including one or more concave lens features, positioned at the front end of the housing within or behind the port with the concave lens features on the interior facing side of the port window; and
a circuit element, including a plurality of lighting elements, positioned behind the window, with the lighting elements positioned in correspondence with the concave lens features so as to generate a pre-defined tailored output beam.