IPC分类号：
F21V1/12 | F21V9/40 | F21V1/26
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 | VAN HAL, PAULUS, ALBERTUS
代理人：
VAN DIJKEN, ALBERT ET AL.
摘要：
A body (10) is disclosed for obscuring a light source arrangement (3). The body comprises a surface (20) including a plurality of optically reflective relief structures (30, 30', 30"), each relief structure comprising a first portion (31) and a second portion (33) adjacent to said first portion extending from said surface, wherein the first portion has a different optical reflectivity to the second portion and neighboring optically reflective relief structures are separated by an optically transparent medium contacting said neighboring optically reflective relief structures. Also disclosed is a luminaire comprising such a body and a method of manufacturing such a body.
技术问题语段：
The technical problem addressed in this patent is the need for a body that can hide light sources, such as light bulbs, from direct view while still giving an interesting appearance. The invention provides a solution by creating a body with optically reflective relief structures that have different optical reflectivity at different viewing angles, resulting in a unique appearance that changes with the viewer's perspective. The invention also includes a method for manufacturing the body and a luminaire that includes the body.
技术功效语段：
The present invention relates to a body for obscuring a light source arrangement that has an appearance that depends on the viewing angle. The body comprises a surface with a plurality of optically reflective relief structures, each with different optical reflectivity. This results in an interesting appearance that changes with changing viewing angles. The optically reflective relief structures may have different heights to width ratios and may be abutting at the base of the body. The technical effect of the invention is to provide a body with an interesting appearance that depends on the viewing angle, which can be used in various lighting arrangements.
权利要求：
CLAIMS:
1. A body (10) comprising a surface (20),
wherein the surface (20) comprises a first optically reflective relief structure (30) and a second optically reflective relief structure, each of the first and second optically reflective relief structures (30) comprising a first portion (31) and an adjacent second portion (33) extending from said surface (20), the first portion (31) having a different optical reflectivity to the second portion (33),
wherein the first and second optically reflective relief structures (30) are separated by an optically transparent medium contacting the first and second optically reflective relief structures (30),
wherein the first portion (31) of the first optically reflective relief structure (30) faces the second portion (33) of the second optically reflective relief structure,
wherein the surface (20) further comprises an optically reflective intermediate surface portion (21) in between the first and second optically reflective relief structures (30), and
wherein the intermediate surface portion (21) comprises a first region (25) and an adjacent second region (23), the first region (25) of the intermediate surface portion (21) being proximal to and having the same optical reflectivity as the first portion (31) of the first optically reflective relief structure (30), and the second region (23) of the intermediate surface portion (21) being proximal to and having the same optical reflectivity as the second portion (33) of the second optically reflective relief structure.
2. The body (10) of claim 1, wherein the optically transparent medium is an optically transparent polymer material or air.
3. The body (10) of claim 1 or 2, wherein the first portion (31) and the second portion (33) have different colours.
4. The body (10) of any of claims 1 -3, wherein the first optically reflective relief structure (30) has a different heights than the second optically reflective relief structures (30”).
5. The body (10) of any of claims 1 -4, wherein each optically reflective relief structure (30, 30’, 30”) has a height to width ratio of at most 10.
6. The body (10) of claim 1, wherein the first region (25) and the second region (23) have different widths.
7. The body (10) of claim 1, wherein said intermediate surface portion (21) has a colour different to the first (31) and second portions (33) of said first and second optically reflective relief structures (30).
8. The body (10) of any of claims 1-7, wherein the body (10) comprises a plurality of repeating units (50), each defined by an optically reflective relief structure (30) and an adjacent intermediate surface portion (21).
9. The body (10) of claim 8, wherein said repeating unit (50) has a width in a range of 0.1 - 10 mm.
10. The body (10) of claim 8 or 9, wherein the surface (20) comprises a first periodic region (51) comprising a first plurality of said repeating units (50) and a second periodic region (53) comprising a second plurality of said repeating units (50’), wherein the repeating units (50) in said first plurality have a different optical reflectivity to the repeating units (50’) in said second plurality.
11. The body (10) of any of claims 1-10, wherein the surface (20) is a closed surface enveloping a space (15) for housing a light source arrangement (3).
12. A luminaire (1) comprising the body (10) of any of claims 1-11 and a light source arrangement (3) positioned relative to the body (10).
13. A method of manufacturing the body ( 10) according to any of claims 1-11, the method comprising simultaneously printing each optically reflective relief structure and each optically reflective intermediate surface portion using 3-D printing.