US 11,655,972 B2
Illumination device with LED strip light engine configured for retrofitting pin-based CFL socket
Ran Lin, Guangdong (CN); Bernhard Rieder, Regensburg (DE); and Shaozhu Yang, Guangdong (CN)
Assigned to LEDVANCE GMBH, Garching bei Munchen (DE)
Filed by LEDVANCE GmbH, Garching bei Munchen (DE)
Filed on Sep. 12, 2018, as Appl. No. 16/129,174.
Claims priority of application No. 201710909696.3 (CN), filed on Sep. 29, 2017.
Prior Publication US 2019/0101275 A1, Apr. 4, 2019
Int. Cl. F21K 9/237 (2016.01); F21K 9/232 (2016.01); F21K 9/235 (2016.01); F21V 29/10 (2015.01); F21V 29/506 (2015.01); F21Y 115/10 (2016.01); F21Y 103/10 (2016.01); F21Y 107/00 (2016.01); F21Y 107/70 (2016.01)
CPC F21V 29/10 (2015.01) [F21K 9/232 (2016.08); F21K 9/235 (2016.08); F21K 9/237 (2016.08); F21V 29/506 (2015.01); F21Y 2103/10 (2016.08); F21Y 2107/00 (2016.08); F21Y 2107/70 (2016.08); F21Y 2115/10 (2016.08)] 23 Claims
OG exemplary drawing
 
1. An illumination device comprising:
a light-transmissive tube having an inner wall defining a cavity;
a light engine comprising:
at least one physically flexible circuit board formed as a strip and extending substantially linearly in a longitudinal axial direction of the light-transmissive tube; and
one or more light emitting diodes populated on the at least one physically flexible circuit board; and
a driver configured to drive the light engine;
wherein the at least one physically flexible circuit board of the light engine is fixed directly on the inner wall of the light-transmissive tube by a first adhesive; and
wherein the illumination device is configured to be received within a socket to provide electrical energy to the driver.