FLEXIBLE UNOBSTRUCTED BEAM SHAPING
First Claim
1. A lighting device comprising a reflector with a reflector wall and a reflector opening and a light source configured to provide in the absence of an optical plate a beam of lighting device light with an original optical axis and an original opening angle (θ
- ), wherein the lighting device comprises only one optical plate, wherein the optical plate comprises a light transmissive layer comprising micro optical structures, and wherein the lighting device including the optical plate is configured to provide said beam of lighting device light having one or more of (i) a final opening angle (θ
f) with θ
f>
θ
, and (ii) a final optical axis having a non-zero angle (β
) with the original optical axis, the reflector widens from the light source to the reflector opening and has a length L, the optical plate being mounted within the reflector to the reflector wall in between 5% to 95% of the length L.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides a lighting device (100) comprising a reflector (110) and a light source (120) configured to provide in the absence of an optical plate (130) a beam (2) of lighting device light (101) with an original optical axis (102) and an original opening angle (θ), wherein the lighting device (100) comprises said optical plate (130) configured within the reflector (110), wherein the optical plate comprises a light transmissive layer (131) comprising micro optical structures (132), and wherein the lighting device (100) including the optical plate (130) is configured to provide said beam (2) of lighting device light (101) having one or more of (i) a final opening angle (θf) with θf>θ, and (ii) a final optical axis (102f) having a non-zero angle (β) with the original optical axis (102).
22 Citations
15 Claims
-
1. A lighting device comprising a reflector with a reflector wall and a reflector opening and a light source configured to provide in the absence of an optical plate a beam of lighting device light with an original optical axis and an original opening angle (θ
- ), wherein the lighting device comprises only one optical plate, wherein the optical plate comprises a light transmissive layer comprising micro optical structures, and wherein the lighting device including the optical plate is configured to provide said beam of lighting device light having one or more of (i) a final opening angle (θ
f) with θ
f>
θ
, and (ii) a final optical axis having a non-zero angle (β
) with the original optical axis, the reflector widens from the light source to the reflector opening and has a length L, the optical plate being mounted within the reflector to the reflector wall in between 5% to 95% of the length L. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- ), wherein the lighting device comprises only one optical plate, wherein the optical plate comprises a light transmissive layer comprising micro optical structures, and wherein the lighting device including the optical plate is configured to provide said beam of lighting device light having one or more of (i) a final opening angle (θ
-
12. A method of changing the optical properties of an existing lighting device, wherein the existing lighting device comprises a reflector with a reflector wall and a reflector opening and a light source, the reflector having a length L between the reflector opening and the light source and being configured to provide in the absence of an optical plate a beam of lighting device light with an original optical axis and an original opening angle (θ
- ), the method comprising arranging only one optical plate to the reflector wall in the reflector in between 5% to 95% of length L downstream of the light source wherein the optical plate comprises a light transmissive layer comprising micro optical structures, and wherein the optical plate is configured to provide said beam of lighting device light with one or more of (i) a final opening angle (θ
f) with θ
f>
θ
, and (ii) a final optical axis (102f) having a non-zero angle (β
) with the original optical axis. - View Dependent Claims (13, 14)
- ), the method comprising arranging only one optical plate to the reflector wall in the reflector in between 5% to 95% of length L downstream of the light source wherein the optical plate comprises a light transmissive layer comprising micro optical structures, and wherein the optical plate is configured to provide said beam of lighting device light with one or more of (i) a final opening angle (θ
-
15. Use of only one optical plate comprising a light transmissive layer comprising micro optical structures in a reflector of an existing lighting device comprising said reflector and a light source for late-stage adaptation of optical properties of a beam of lighting device light generated by said lighting device during use.
Specification