LUMINAIRE
First Claim
1. A luminaire that emits light toward an illumination target, the luminaire comprising:
- a light source;
a luminaire body which houses the light source; and
a light-guiding panel including a main surface facing opposite the illumination target and an end portion held by the luminaire body, the end portion having an end surface into which light emitted by the light source enters,wherein the main surface of the light-guiding panel includes a reflecting area having a plurality of recesses for reflecting the light entering from the end surface toward the illumination target, each of the plurality of recesses having an approximately conical shape, andan angle θ
formed by a lateral surface of each of the plurality of recesses and the main surface of the light-guiding panel satisfies an expression of θ
′
−
Δ
θ
<
θ
<
θ
′
+Δ
θ
, when an angle θ
′ and
an angle Δ
θ
are defined as;
1 Assignment
0 Petitions
Accused Products
Abstract
A luminaire is provided. A main surface of a light-guiding panel included in the luminaire includes a reflecting area having a plurality of approximately conical recesses. An angle θ formed by a lateral surface of each of the recesses and the main surface of the light-guiding panel satisfies a condition defined by a distance D from a center position of a light source to a center position of the reflecting area, a distance H from an illumination target surface to the center position of the light source, an angle γ which the light-guiding panel forms with a horizontal plane, a refractive index n of the light-guiding panel, and a surface roughness Ra of the lateral surface of each of the recesses.
5 Citations
20 Claims
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1. A luminaire that emits light toward an illumination target, the luminaire comprising:
-
a light source; a luminaire body which houses the light source; and a light-guiding panel including a main surface facing opposite the illumination target and an end portion held by the luminaire body, the end portion having an end surface into which light emitted by the light source enters, wherein the main surface of the light-guiding panel includes a reflecting area having a plurality of recesses for reflecting the light entering from the end surface toward the illumination target, each of the plurality of recesses having an approximately conical shape, and an angle θ
formed by a lateral surface of each of the plurality of recesses and the main surface of the light-guiding panel satisfies an expression of θ
′
−
Δ
θ
<
θ
<
θ
′
+Δ
θ
, when an angle θ
′ and
an angle Δ
θ
are defined as; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A luminaire that emits light toward an illumination target, the luminaire comprising:
-
a light source; a luminaire body which houses the light source; and a light-guiding panel including a main surface facing opposite the illumination target and an end portion held by the luminaire body, the end portion having an end surface into which light emitted by the light source enters, wherein the main surface of the light-guiding panel includes a reflecting area having a plurality of recesses for reflecting the light entering from the end surface toward the illumination target, each of the plurality of recesses having an approximately conical shape, and an angle θ
formed by a lateral surface of each of the plurality of recesses and the main surface of the light-guiding panel satisfies an expression of θ
′
−
Δ
θ
<
θ
<
θ
′
+Δ
θ
, when an angle θ
′ and
an angle Δ
θ
are defined as; - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification