Lighting device

The modular lighting device with separable components addresses the issue of large and heavy screen lighting by enabling easier installation and reduced weight, improving workability and safety.

JP2026103932APending Publication Date: 2026-06-25TOZAI DENKO CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOZAI DENKO CO LTD
Filing Date
2024-12-13
Publication Date
2026-06-25

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  • Figure 2026103932000001_ABST
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Abstract

This lighting device reduces the weight of individual components, improving ease of installation and facilitating safety during operation. [Solution] Multiple lighting devices 11 are installed as light sources, and the mounting frame 20, panel, and cover are installed as separate components, thereby reducing the size and weight of each component and improving ease of installation. Furthermore, the effects of uneven lighting and shadows are suppressed by the degree of diffusion of the panel and the spatial distance between the light source and the panel.
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Description

Technical Field

[0001] The present invention relates to a lighting device.

Background Art

[0002] Screen lighting has become popular for virtually representing skylights and wall windows in various facilities and is said to have a psychologically useful effect.

Summary of the Invention

Problems to be Solved by the Invention

[0003] General screen lighting often becomes large-sized lighting because there are no joints in the light-emitting part and the panel part to obtain good optical performance. When the light-emitting area is about 1 m × 1 m, it often weighs about 50 kg to 80 kg, and in the case of installation on a ceiling or a wall, the workability is poor and the strength of the installation part becomes important.

Means for Solving the Problems

[0004] The above problems are solved by a lighting device 200, comprising a light-emitting part 10, a panel part 40 having diffusibility and translucency, and a frame 30. The light-emitting part 10 is composed of a plurality of independent individual lighting devices 11, each of the plurality of individual lighting devices 11 is attached to an installation surface 100, the panel part 40 is attached to a mounting frame 20 independent of the light-emitting part 10, the mounting frame 20 is attached to the installation surface 100, and the frame covers the light-emitting part 10, the mounting frame 20, and the panel part 40 and is attached to the installation surface 100. Further, the above problems are achieved by the above lighting device 200, wherein the panel part 40 is composed of a plurality of panels. Further, the above problems are achieved by the above lighting device 200, wherein the panel part 40 is composed of a diffusion panel, a sheet, and a transparent panel. [[IDIDID=30]]

Effects of the Invention

[0005] This invention makes it possible to reduce the weight of individual components, thereby improving workability. It also makes it easier to ensure safety during work. [Brief explanation of the drawing]

[0006] [Figure 1] Configuration diagram of a lighting device showing one embodiment of the present invention. [Figure 2] Cross-sectional view of a lighting device showing one embodiment of the present invention. [Figure 3] Structural diagram of a lighting device showing one embodiment of the present invention. [Modes for carrying out the invention]

[0007] Embodiments of the present invention will be described below with reference to the drawings.

[0008] Figure 1 is a configuration diagram of a lighting device showing one embodiment of the present invention, and Figure 2 is a cross-sectional configuration diagram of a lighting device showing one embodiment of the present invention. The basic principles of the present invention will be explained with reference to Figures 1 and 2. The light-emitting section 10 is composed of a plurality of individual light-emitting devices 11, and the individual light-emitting devices 11, the mounting frame 20, the frame 30, and the panel section 40 are separable from each other. For installation, the mounting frame 20 is attached to the installation surface 100, then the individual light-emitting devices 11 are attached to the installation surface 100 one by one using the mounting frame as a reference, and the frame 30 to which the panel section 40 is attached is fixed to the mounting frame 20. Since the light-emitting section 10 is composed of a plurality of individual light-emitting devices 11, and the individual light-emitting devices 11 are configured as lighting devices in which the light source part, such as an LED or lamp, is protected, it is easy to protect the light source part during installation, and the weight of each installation is reduced because it is installed in sections. As a result, workability is improved. Furthermore, reducing the weight of each component eases the required rigidity for each individual component, allowing for further weight reduction. This results in a lighter lighting device 200 and a reduction in the required strength of the mounting surface 100. As a result, significant cost benefits can be obtained.

[0009] Figure 3 is a cross-sectional view of a lighting device showing one embodiment of the present invention. The lighting device in this embodiment consists of a light-emitting section 10 composed of four individual lighting devices 11, a mounting frame 20, a panel section 40, and a frame 30. The panel section 40 has a three-layer structure consisting of a diffusion panel, a photographic film, and a transparent panel, and the installation surface 100 is assumed to be a ceiling or wall surface.

[0010] The installation procedure involves fixing the mounting frame 20 to the installation surface 100. Then, individual lighting devices 11 are fixed one by one to the fixed mounting frame 20. The panel section 40 is fixed to the mounting frame 20 using the frame 30. By consolidating the positioning mechanism into the mounting frame 20, which is fixed first, a simplified installation process is possible.

[0011] In this embodiment, the panel section 40 has a three-layer structure consisting of a diffusion panel, a photographic film, and a transparent panel, and diffusion material is also used on the light-emitting surface of the individual lighting device 11 to eliminate unevenness at the connection part of the individual lighting device 11. In this embodiment, the design aimed to reduce the thickness and weight of the lighting device in order to improve workability, so a structure was adopted in which diffusion material is used on both the light-emitting surface of the individual lighting device 11 and the panel section 40. However, by increasing the thickness of the lighting device, it becomes possible to create a space between the light-emitting surface of the individual lighting device 11 and the panel section 40, and it becomes possible to reduce unevenness including the length of this space. [Explanation of Symbols]

[0012] 10. Light-emitting part 11. Individual lighting devices 20... Mounting frame 30...frame 40... Panel section 100...Installation surface 200...Screen lighting

Claims

1. A lighting device 200 comprising a light-emitting section 10, a panel section 40 having diffusive and light-transmitting properties, and a frame 30, wherein the light-emitting section 10 is composed of a plurality of independent individual lighting devices 11, each of the plurality of individual lighting devices 11 is mounted on an installation surface 100, the panel section 40 is mounted on a mounting frame 20 independent of the light-emitting section 10, the mounting frame 20 is mounted on the installation surface 100, and the frame is a frame that covers the light-emitting section 10, the mounting frame 20 and the panel section 40.

2. The lighting device 200 according to claim 1, characterized in that the panel section 40 is composed of a plurality of panels.

3. The lighting device 200 according to claim 1, characterized in that the panel section 40 is composed of a diffusion panel, a sheet, and a transparent panel.