US 12,460,793 B2
Variable frost systems for a lighting device and lighting devices have the same
Michelle Kessler, Dallas, TX (US); and Paul Koenig, Dallas, TX (US)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 18/572,251
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Jun. 8, 2022, PCT No. PCT/EP2022/065466
§ 371(c)(1), (2) Date Dec. 20, 2023,
PCT Pub. No. WO2022/268498, PCT Pub. Date Dec. 29, 2022.
Claims priority of provisional application 63/214,068, filed on Jun. 23, 2021.
Claims priority of application No. 21183592 (EP), filed on Jul. 5, 2021.
Prior Publication US 2024/0295306 A1, Sep. 5, 2024
Int. Cl. F21V 14/08 (2006.01); F21S 10/00 (2006.01); F21V 3/04 (2018.01); F21W 131/406 (2006.01)
CPC F21V 14/08 (2013.01) [F21S 10/007 (2013.01); F21V 3/049 (2013.01); F21W 2131/406 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A variable frost system, comprising:
a first frost component and third frost component, wherein the first frost component and third frost component are attached to a first arm structure, wherein the first and third frost components are adjacent each other; and
a second frost component and fourth frost component, wherein the second frost component and fourth frost component are attached to a second arm structure, wherein the second and fourth frost components are adjacent each other;
wherein the first arm structure and the second arm structure are located on opposing sides of an aperture for a light beam and both are movable such that, in a first position of the variable frost system, the first frost component and the second frost component are at least partially overlapped with each other such that the first frost component and the second frost component are positioned to provide a combined frost lighting effect to at least a portion of the light beam; and
wherein, in a second position of the variable frost system, the first frost component and the fourth frost component are at least partially overlapped with each other and the second and third frost components are at least partially overlapped with each other.
 
11. A lighting device with a variable frost system, comprising:
at least one light source emitting a light beam;
a first frost component, wherein at least the frost component is attached to a first arm structure, wherein the first arm structure comprises a first crossbar and a second crossbar, the first crossbar having a first sawtooth edge and the second crossbar having a second sawtooth edge; and
second frost component, wherein at least the second frost component is attached to a second arm structure, wherein at least the first arm structure and the second arm structure are each rotatable by a motor,
wherein, in a position of the variable frost system, the first arm structure and the second arm structure are rotatable to a position such that first frost component and the second frost component are at least partially overlapped with each other such that the first frost component and the second frost component are positioned to provide a combined frost lighting effect to at least a portion of the light beam of the lighting device.