IPC分类号：
F21V5/08 | F21V5/04 | B29C64/00 | B33Y10/00 | B33Y80/00 | F21Y115/15
国民经济行业分类号：
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人：
SIGNIFY HOLDING B.V.
原始申请(专利权)人：
SIGNIFY HOLDING B.V.
当前申请(专利权)人地址：
High Tech Campus 48,5656 AE Eindhoven NL
发明人：
HIKMET, RIFAT, ATA, MUSTAFA | ANSEMS, JOHANNES, PETRUS, MARIA | VAN BOMMEL, TIES
代理人：
STIL, LAMBERT, JOHANNES ET AL.
摘要：
The present invention generally relates to a lighting device (200) that comprises an optical component (100) for generating a beam shaping effect. The lighting device (200) further comprises a light source (201) and a light reflective component (114). The light source (201) is configured to provide a light source light and the light reflective component (114) is configured to at least partially reflect at least part of the light source light. The optical component (100) comprises a tubular body (101) having an outer surface (102), and an inner surface (103) opposite to the outer surface (102), the inner surface (102) at least in part forming a cavity (104). The tubular body (101) comprises a first end face (107) and a second end face (108) arranged opposite to the first end face (107). Furthermore, the tubular body (101) comprises a plurality of layers (109) stacked on top of each other extending in a stacking direction (110) of a longitudinal axis (001) of the optical component, each layer (109) encloses part of the cavity (104). Each of the plurality of layers (109) is a biconvex cylinder having an optical axis (002) perpendicular to the stacking direction (110). At least part of the outer surface (102) for each of the plurality of layers (109) is convex shaped and at least part of the inner surface (103) for each of the plurality of layers (109) is convex shaped. The light reflective component (114) is arranged closer to the first end face (107) compared to the second end face (108), and the light source (201) is arranged closer to the second end face (108) compared to the first end face (107).
权利要求：
CLAIMS:
1. A lighting device (200) for providing a device light, the lighting device (200) comprising, a light source (201) configured to provide a light source light; an optical component (100) configured for beam shaping at least part of the light source light; and a light reflective component (114) configured to at least partially reflect at least part of the light source light; wherein the optical component (100) comprises a tubular body (101) having an outer surface (102), and an inner surface (103) opposite to the outer surface (102), the inner surface (103) at least in part forming a cavity (104), wherein the tubular body (101) comprises a first end face (107) and a second end face (108) that is arranged opposite to the first end face (107), wherein the tubular body (101) comprises a plurality of layers (109) stacked on top of each other extending in a stacking direction (110) of a longitudinal axis (001) of the optical component, each layer (109) encloses part of the cavity (104), wherein each of the plurality of layers (109) is a biconvex cylinder having an optical axis (002) perpendicular to the stacking direction (110), wherein at least part of the outer surface (102) for each of the plurality of layers (109) is convex shaped and at least part of the inner surface (103) for each of the plurality of layers (109) is convex shaped, and wherein the light reflective component (114) is arranged closer to the first end face (107) compared to the second end face (108), and the light source (201) is arranged closer to the second end face (108) compared to the first end face (107), and wherein the device light has a batwing spatial light distribution.
2. The lighting device (200) according to claim 1, wherein at least part of the tubular body (101) comprises a barrel shape having a maximum diameter (D) that is larger than a first diameter (DI) of the first end face (107) and a second diameter (D2) of the second end face (108).
3. The lighting device (200) according to claim 2, wherein the first diameter (DI) is larger than the second diameter (D2).
4. The lighting device (200) according to any one of the claims 2 to 3, wherein 1.KD/DK1.5 and/or 1.1<D/D2<1.5.
5. The lighting device (200) according to any one of the preceding claims, wherein each of the plurality of layers (109) comprises a layer thickness (T) and a layer width (W), wherein a ratio (R) of the layer thickness (T) and the layer width (W) is in a range from 0.4 to 0.6.
6. The lighting device (200) according to any one of the preceding claims, wherein the light source (201) is at least partly arranged inside the said tubular body (101).
7. The lighting device (200) according to any one of the preceding claims, wherein the light reflective component (114) is arranged at the first end face (107) and forms an integral optical part with the optical component (100).
8. The lighting device (200) according to any one of the preceding claims, wherein the plurality of layers (109) comprises a plurality of successive layers (115) that are staggered such that a diameter of the tubular body (101) gradually increases in a direction facing away from the light source (201) in a direction of the first end face (107).
9. The lighting device (200) according to any one of the preceding claims, wherein the plurality of layers (109) comprises a plurality of successive layers (115) that are staggered such that a diameter of the tubular body (101) gradually decreases in a direction facing away from the light source (201) and in a direction of the first end face (107).
10. The lighting device (200) according to any one of the preceding claims, wherein the optical component (100) comprises an imaginary line (003) that extends between a first edge (111) of a first end face (107) and an intersection point (113) of the longitudinal axis (001) and a second transverse plane (P3), the second end face (108) being arranged in the second transverse plane (P3), and wherein the imaginary line (003) encloses an opening
14 angle (92) with the longitudinal axis (001) that is chosen from a range between 15 degrees to 25 degrees.
11. The lighting device (200) according to any one of the preceding claims, wherein the light reflective component (114) is a first diffuser having a reflectivity of at least 40% of the light source light.
12. The lighting device (200) according to any one of the preceding claims, wherein the optical component (100) and/or the light reflective component (114) is made by 3D printing.
13. A luminaire (300) comprising the lighting device (200) according to any one of the preceding claims.