Light emitting device
A technology that emits equipment and emits light, which is applied in mechanical equipment, lighting and heating equipment, optics, etc., and can solve problems such as inability to couple
Pending Publication Date: 2021-11-26
SIGNIFY HLDG BV
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] However, for such a light-emitting device, a portion of the light emitted by the light source—for example, in the case of the above-mentioned 45-degree inclination part of - cannot be coupled into the light guide
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0068] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and to fully convey the scope of the invention to those skilled in the art .
[0069] figure 1 A cross-sectional side view of a first embodiment of a light emitting device 1 according to the invention is shown.
[0070] Generally, and regardless of the embodiment, the light emitting device 1 according to the present invention comprises a light source 2 and a light guide 3 .
[0071] The light source 2 includes a light emitting surface 21 . The light source 2 is adapted to emit light in operation. The light emitted by the light source can be white light, although any other colo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting light, the at least one light source (2) comprising a light emitting surface (21), and a light guide (3) comprising a top surface (31), a bottom surface (32) and a light incoupling edge (33) extending between the top surface (31) and the bottom surface (32), where a plane (4) is defined as extending in parallel with at least one of the top surface (31) and the bottom surface (32) of the light guide (3), where the at least one light source (2) and the light guide (3) is arranged in such a way with respect to each other that the light emitting surface (21) of the at least one light source (2) and the light incoupling edge (33) of the light guide (3) face each other, that the light incoupling edge (33) of the light guide (3) extends in a first angle (alpha) with respect to said plane (4), and that the light emitting surface (21) of the at least one light source (2) extends in a second angle (beta) with respect to said plane (4), and that at least one of the first angle (alpha) and the second angle (beta) is less than 90 degrees, and where the light emitting device (1) further comprises a linear refractive and / or reflective optical element (6) arranged and adapted for shaping the fraction of the light emitted by the light source (2) which is not coupled into the light guide (3) and / or which leaks out of the top surface (31) of the light guide (3) into a focused light beam propagating above the top surface (31) of the light guide (3) in an acute angle with said plane (4).
Description
technical field [0001] The present invention relates to edge-lit light emitting devices. In particular, the present invention relates to a light emitting device comprising: at least one light source adapted to emit light in operation, the at least one light source comprising a light emitting surface; and a light guide comprising a top surface, a bottom surface and a top surface and a light incoupling edge extending between the light guide and the bottom surface, wherein a plane is defined as extending parallel to the top and bottom surfaces of the light guide, and wherein the at least one light source and the light guide are arranged relative to each other in such a manner that the at least one The light emitting surface of the light source and the light incoupling edge of the light guide face each other. Background technique [0002] Edge-lit light guide architectures are commonly used in various forms of general lighting, such as, for example, recessed, surface mounted, a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/61F21S8/02F21V7/04F21V8/00F21Y115/10
CPCF21S8/02F21V7/04G02B6/0018G02B6/0031G02B6/0036G02B6/0055F21Y2115/10G02B6/002G02B6/0073
Inventor M·C·J·M·维森伯格J·P·M·安塞姆斯B·莫斯H·J·科尼利森O·V·弗多温
Owner SIGNIFY HLDG BV