US 10,451,231 B2
Optical device and lighting device comprising the optical device
Gang Song, Shanghai (CN); and Caijie Yan, Shanghai (CN)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 14/891,477
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed May 8, 2014, PCT No. PCT/IB2014/061279
§ 371(c)(1), (2) Date Jan. 28, 2016,
PCT Pub. No. WO2014/184718, PCT Pub. Date Nov. 20, 2014.
Application 14/891,477 is a continuation of application No. PCT/CN2013/000583, filed on May 15, 2013.
Prior Publication US 2018/0306394 A1, Oct. 25, 2018
Int. Cl. F21S 8/00 (2006.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21V 33/00 (2006.01); F21Y 115/10 (2016.01); F21W 111/027 (2006.01)
CPC F21S 8/037 (2013.01) [F21V 5/04 (2013.01); F21V 7/0091 (2013.01); F21V 33/006 (2013.01); F21W 2111/027 (2013.01); F21Y 2115/10 (2016.08)] 8 Claims
OG exemplary drawing
 
1. An optical device for positioning at or adjacent to an area where a first surface intersects a second surface and for redirecting light from a light source, the optical device comprising a bottom surface under which the light source can be positioned, wherein the optical device further comprises:
a first light guiding structure having a first end face and a first curved surface, whereby the first light guiding structure functions as a TIR reflector that is configured for redirecting light from the light source into a first direction towards the first surface, and
a second light guiding structure having a second end face and a second curved surface, whereby the second light guiding structure functions as a TIR reflector that is configured for redirecting light from the light source into a second direction towards the second surface,
wherein the optical device is arranged to prevent light from the light source from being redirected in a direction between the first and second directions, and
wherein the first end face of the first light guiding structure is parallel to the first surface, and the second end face of the second light guiding structure is parallel to the second surface.