US 11,927,340 B2
Reflective device and light source module
Chaobo Liu, Shanghai (CN)
Assigned to OPPLE LIGHTING CO., LTD., Shanghai (CN)
Filed by OPPLE LIGHTING CO., LTD., Shanghai (CN)
Filed on Apr. 26, 2019, as Appl. No. 16/396,329.
Application 16/396,329 is a continuation of application No. PCT/CN2017/106582, filed on Oct. 17, 2017.
Claims priority of application No. 201610948477.1 (CN), filed on Oct. 26, 2016; and application No. 201621172757.X (CN), filed on Oct. 26, 2016.
Prior Publication US 2019/0249845 A1, Aug. 15, 2019
Int. Cl. F21V 7/04 (2006.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 7/048 (2013.01) [F21V 5/04 (2013.01); F21V 7/005 (2013.01); F21V 7/0091 (2013.01); F21V 7/04 (2013.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08)] 18 Claims
OG exemplary drawing
 
1. A reflective device, wherein the reflective device is transparent and comprises a light entrance, a light exit, and a reflective wall between the light entrance and the light exit,
wherein the light entrance is smaller than the light exit,
wherein the reflective wall comprises an inner surface and an outer surface, the inner surface comprising a plurality of sawtooth structures arranged continuously along a direction from the light entrance to the light exit, each of the sawtooth structures comprising a first refractive surface and a second refractive surface intersected with each other, and two ends of each of the sawtooth structures being respectively extended toward the light entrance and the light exit, wherein a ridge line is formed by intersecting of the first refractive surface and the second refractive surface of each of the sawtooth structures and an angle between the ridge line and a plane where the light entrance locates is smaller than a predetermined degree, and the reflective wall comprises two reflective walls, the two reflective walls are opposite to each other, and each of the reflective walls is in a plate shape that respectively extends from the light entrance to the light exit and the first refractive surface of each of the sawtooth structures permits light to enter the sawtooth structure by getting refracted, the light is then reflected from the outer surface of the sawtooth structure and exits out from the second refractive surface by refraction, and wherein the reflective device comprises a connection plate having a plate shape that surrounds an enclosure space between the two reflective walls and a bottom of the connection plate is flush with one end of the two reflective walls, a plurality of light emitting units are directly disposed on the bottom of the connection plate between the two reflective walls, and an inner surface of the connection plate is a total reflection surface, wherein the plurality of light emitting units are disposed along a first line extending outwardly in a first direction away from a second line, the second line being perpendicular to the first line and extending in a second direction, along a surface of the connection plate, the surface connecting the two reflective walls.