TWM512098U - Lighting fixture - Google Patents

Description

Lighting fixture

This creation is about a lighting fixture, especially a lighting fixture for indirect lighting.

In recent years, with the increase in output and efficiency of light-emitting diodes (LEDs), lighting fixtures using LEDs as light sources have been developed for use indoors or outdoors, and have a long life expectancy. The lighting fixture is configured to mount a plurality of LEDs on a substrate to obtain a predetermined brightness.

However, in this lighting fixture, the light emitted from the LED has strong directivity and is liable to generate glare.

Moreover, the current indoor indirect lighting mainly uses spacers to avoid direct illumination of light. However, in this indirect illumination mode, the light is used for illumination after being reflected or diffused multiple times, so the utilization of light is low and energy is consumed.

The main purpose of the present invention is to provide a lighting fixture comprising: an outer casing having an opening and at least one chamber, wherein the chamber is located on at least one side of the opening, the outer casing is mounted to a building a supporting surface; a transparent substrate disposed in the outer casing, and exposing a light emitting surface of the transparent substrate from the opening of the outer casing; and at least A light source is disposed in the housing of the outer casing to emit light to the transparent substrate, and the light emitted by the light source is emitted to the outside through the light emitting surface of the transparent substrate.

In one embodiment of the present invention, the outer casing may be disposed or mounted on a ceiling or wall of an interior, or an exterior wall of an outdoor building.

In one embodiment of the present invention, the outer casing can be embedded between the support frames of the ceiling.

In one embodiment of the present invention, the outer casing may be made of a highly thermally conductive metal material to enhance the heat dissipation efficiency of the lighting fixture.

In one embodiment of the present creation, the transparent substrate of the lighting fixture can be fully transparent or translucent.

In an embodiment of the present invention, the transparent substrate of the lighting fixture may be rectangular, circular, elliptical, rectangular, triangular or irregular.

In one embodiment of the present invention, the material of the transparent substrate of the lighting fixture is, for example, glass, bismuth-containing material, photo-curable resin, polymethyl methacrylate (PMMA) or polycarbonate (PC).

In an embodiment of the present invention, the material of the transparent substrate may be tempered glass to enhance the strength and durability of the substrate.

In an embodiment of the present invention, a light diffusing material using a transparent or white pigment may be mixed in the transparent substrate material.

In one embodiment of the present invention, the exposed light-emitting surface of the outer casing may be any shape, such as rectangular, circular, elliptical, rectangular, triangular or irregular, to provide planar illumination of various shapes.

In an embodiment of the present invention, the side entrance surface of the transparent substrate is formed on at least one side of the transparent substrate, which corresponds to the position of the light source, to allow the light emitted by the light source to enter the transparent substrate, and the side enters the light. The face may have a V-shaped structure (V-Cut), an S-shaped wave structure or a surface roughening treatment to improve the incidence efficiency and optical coupling efficiency of the light.

In an embodiment of the present invention, the side entrance light surface may be a plane substantially perpendicular to the light emitting surface and the reflective surface.

In one embodiment of the present invention, the reflective microstructures may be arranged on a reflective surface of the transparent substrate, and the reflective microstructures may be arranged continuously or discontinuously over all or a portion of the reflective surface.

In one embodiment of the present invention, the cross-sectional shape of the reflective microstructure can be triangular, rectangular, trapezoidal or semi-circular.

In one embodiment of the present invention, the reflective microstructure can be in the form of a plurality of columns, cones, pyramids or hemispheres.

In one embodiment of the present invention, the reflective microstructure can have at least one width-depth ratio, and the reflective microstructure has a width of about 500 micrometers (um) to 1500 um and a depth of about 50 um to 150 um.

In one embodiment of the present invention, the brightness distribution of the lighting fixture can be adjusted by adjusting the aspect ratio (W/D) of the reflective microstructure.

In one embodiment of the present invention, the width to depth ratio of each reflective microstructure of the lighting fixture can be equal to greater than ten.

In one embodiment of the present invention, each of the reflective microstructures of the lighting fixture may have a width to depth ratio of about 10 to 30.

In one embodiment of the present invention, the width and depth of each reflective microstructure of the lighting fixture The ratio can be about 13~27.

In one embodiment of the present invention, the light source of the lighting fixture may be a Cold Cathode Fluorescent Lamp (CCFL), a Hot Cathode Fluorescent Lamp (HCFL), or a Light Emitting Diode (Light). -Emitting Diode,LED),Organic Light Emitting Diode (OLED), Flat Fluorescent Lamp (FFL), Electro-Luminescence (EL), Light Bar (Light) Bar), electrodeless lamp or any combination of the above.

In an embodiment of the present invention, the outer casing may be fixed to the support surface by screws, and the outer casing may be provided with a plurality of screw holes, and the screw holes may be disposed outside the outer casing.

As mentioned above, the lighting fixture of the present invention can be directly mounted on the support surface of the building for providing indirect illumination and avoiding glare. Since the light of the light source is emitted only once, it can be emitted as indirect illumination, thereby reducing the loss of light energy, improving the utilization of light, and achieving energy saving effects.

110‧‧‧ outer casing

111‧‧‧ openings

112‧‧ ‧ room

113‧‧‧ screw holes

121‧‧‧Lighting surface

120‧‧‧Transparent substrate

123‧‧‧Side into the glossy side

122‧‧‧reflecting surface

130‧‧‧Light source

124‧‧‧Reflective microstructure

140‧‧‧ screws

1 is a cross-sectional view of a lighting fixture according to an embodiment of the present invention on a ceiling; FIG. 2 is a cross-sectional view showing a lighting fixture mounted on a wall according to an embodiment of the present invention; and FIG. 3 shows a A schematic cross-sectional view of a lighting fixture of an embodiment secured to a ceiling.

In order to make the above and other purposes, features and advantages of this creation more obvious It is to be understood that the preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Furthermore, the directional terms mentioned in this creation, such as top, bottom, top, bottom, front, back, left, right, inside, outside, side, surrounding, center, level, horizontal, vertical, vertical, axial, Radial, uppermost or lowermost, etc., only refer to the direction of the additional schema. Therefore, the directional terminology used is used to describe and understand the creation, and is not intended to limit the creation.

The drawings and the description are to be regarded as illustrative rather than restrictive. In the figures, structurally similar elements are denoted by the same reference numerals. In addition, the size and thickness of each element shown in the drawings are arbitrarily shown for the sake of understanding and convenience of description, but the present creation is not limited thereto.

In the figures, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. In the drawings, the thickness of layers and regions are exaggerated for the purposes of illustration and description. It will be understood that when an element such as a layer, a film, a region or a substrate is referred to as "on" another element, the element may be directly on the other element or the intermediate element may be present.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present writing will be described more fully hereinafter with reference to the accompanying drawings in which FIG. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and the scope of the present invention will be fully conveyed by those skilled in the art. Like numbers refer to like elements throughout.

Although the terms first, second, etc. may be used herein to describe various elements, it will be understood that these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and a second element could be termed a first element, without departing from the scope of the present invention. As used herein, the terms / and/or 〃 include any and all combinations of one or more of the associated listed items.

It will be understood that when an element (eg, layer, region, or substrate) is referred to as being on another component or extending to another component, it can be directly on the other component or directly There may also be intervening components on the component. Conversely, when an element is referred to as being "directly" on another component or directly extending to the other component, there is no intervening component. It will also be understood that when an element is referred to as a 〃 〃 or 〃 〃 〃 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In contrast, when an element is referred to as a 〃 directly connected 〃 or 〃 is directly coupled to the other element, the intervening element is not present.

The terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural unless the context clearly indicates otherwise. It will also be understood that when the terms "include", "include" The use of the features, the whole, the steps, the operations, the elements, and/or the components of the specification, as used herein, are not intended to exclude one or more other features, integers, steps. The presence or addition of operations, elements, components, and/or combinations thereof.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. It will be further understood that the terms used herein are to be interpreted as having a meaning that is consistent with the meaning of the context of the specification and the related art, and should not be construed in an idealized or overly formalized meaning unless specifically This is limited.

Unless explicitly stated otherwise, comparative quantitative terms (eg, less 〃 and 〃 larger) are intended to cover the same concept. For example, less 〃 can mean not only a strict mathematical sense, but also less than or equal to ".

1 and FIG. 2, FIG. 1 is a cross-sectional view of a lighting fixture according to an embodiment of the present invention on a ceiling, and FIG. 2 is a cross-sectional view showing a lighting fixture mounted on a wall according to an embodiment of the present invention. The lighting fixtures of this creation can be placed indoors or outdoors, for indoor or outdoor lighting. More specifically, the lighting fixture of the present invention can be placed or mounted on a support surface of a building, such as an indoor ceiling (such as a ceiling panel), a wall or a glass substrate, or an exterior wall or glass curtain of an outdoor building.

As shown in FIG. 1 and FIG. 2 , the lighting fixture of the embodiment may include an outer casing 110 , a transparent substrate 120 , and at least one light source 130 . The transparent substrate 120 and the light source 130 are mounted in the outer casing 110. The light source 130 is located on at least one side of the transparent substrate 120 for emitting light into the transparent substrate 120.

When the lighting fixture of the embodiment is used for indoor or outdoor lighting, the outer casing 110 can be mounted on a supporting surface of a building (for example, an indoor ceiling, a wall or a glass substrate, or an exterior wall of an outdoor building or a glass curtain). The transparent substrate 120 and the light source 130 are carried, and only the light-emitting surface 121 of the transparent substrate 120 is exposed. When the lighting fixture provides illumination, the light emitted by the light source 130 can enter the transparent substrate 120 and be emitted into the room or outdoors through the light emitting surface 121.

As shown in Figures 1 and 2, the outer casing 110 of the lighting fixture can be made of an opaque material, such as a metallic material, a plasticized material, or a combination of the foregoing. The outer casing 110 can be made of a highly thermally conductive metal material to improve the heat dissipation efficiency of the lighting fixture. The outer casing 110 has an opening 111 and at least one chamber 112. The opening 111 is facing indoors or outdoors for exposing the light emitting surface 121 of the transparent substrate 120. The chamber 112 is located at least on one side of the opening 111 and communicates with the opening 111. For accommodating the light source 130.

As shown in FIG. 1 and FIG. 2, the transparent substrate 120 of the lighting fixture 100 of the present embodiment The transparent substrate 120 can be made into a flat plate-shaped structure, and the transparent substrate 120 can be a flat plate of any shape, such as a rectangle, a circle, an ellipse, a rectangle, a triangle, or an irregular shape. The material of the transparent substrate 120 is, for example, glass, a ruthenium-containing material, a photocurable resin, polymethyl methacrylate (PMMA) or polycarbonate (PC). When the lighting fixture 100 is applied to outdoor lighting, the transparent substrate 120 may be tempered glass to enhance its substrate strength and durability. A light diffusing material using a transparent or white pigment may be mixed in the material of the transparent substrate 120. The transparent substrate 120 may have a light emitting surface 121, a reflective surface 122, a side light incident surface 123, and a reflective microstructure 124. The light emitting surface 121 is located on the front surface of the transparent substrate 120 to allow light to be emitted from the inside of the transparent substrate 120 to the external environment. The reflecting surface 122 is located on the bottom surface of the transparent substrate 120 and is opposite to the light emitting surface 121. The light emitting surface 121 exposed by the outer casing 110 may be any shape, such as rectangular, circular, elliptical, rectangular, triangular or irregular, to provide planar illumination of various shapes.

As shown in FIG. 1 and FIG. 2, the side light incident surface 123 of the transparent substrate 120 is formed on at least one side of the transparent substrate 120, which corresponds to the position of the light source 130, to allow the light emitted by the light source 130 to enter the transparent substrate. 120 inside. In an embodiment, the side entrance surface 123 may have, for example, a V-shaped structure (V-Cut), an S-shaped wave structure, or a surface roughening treatment (not shown), thereby improving the incidence efficiency and optical coupling efficiency of the light. In this embodiment, the side light incident surface 123 can be a plane substantially perpendicular to the light emitting surface 121 and the reflective surface 122.

The reflective microstructures 124 of the present embodiment can be arranged on the reflective surface 122 of the transparent substrate 120. The reflective microstructures 124 can be arranged continuously or discontinuously on all or part of the reflective surface 122. The cross-sectional shape of the reflective microstructure 124 can be triangular, rectangular, trapezoidal or semi-circular. Alternatively, the reflective microstructures 124 can be in the form of a plurality of columns, cones, pyramids or hemispheres. Also, the bottom surface of the reflective microstructure 124 can be polygonal, circular, irregular, or any shape. among them, The reflective microstructure 124 can have at least one width-depth ratio (W/D). It is worth noting that the aspect ratio of the reflective microstructures 124 is the ratio of the width to the depth of the reflective microstructures 124 (W/D). This width W is the width of the recessed opening formed by the reflective microstructure 124 on the reflective surface 122, and the depth is the depth of the recess formed by the reflective microstructure 124 on the reflective surface 122. In this embodiment, the reflective microstructure 124 has a width of about 500 micrometers (um) to 1500 um and a depth of about 50 um to 150 um.

In an embodiment, the brightness distribution of the lighting fixture 100 can be adjusted by the aspect ratio (W/D) of the reflective microstructures 124. In fact, there may be a slight difference in the aspect ratio between each of the reflective microstructures 124 on the transparent substrate 120, and the width-to-depth ratio of each of the reflective microstructures 124 of the illumination fixture 100 of the present embodiment may be located at a The appropriate aspect ratio range, for example, equal to more than 10, enables the brightness distribution of the light emitted by the lighting fixture 100 to meet the expected lighting requirements, that is, the light inside the transparent substrate 120 can be transmitted to an appropriate distance, and the brightness of the lighting fixture 100 can be high. Expected brightness. In an embodiment, the reflective microstructure 124 may have a width to depth ratio of about 10 to 30 to adjust the brightness distribution of the lighting fixture 100. In an embodiment, the reflective microstructure 124 may have a width to depth ratio of about 13-27 to adjust the brightness distribution of the lighting fixture 100.

As shown in FIG. 1 and FIG. 2, the light source 130 of the illumination lamp is disposed in the chamber 112 of the outer casing 110, and faces the side entrance surface 123 of the transparent substrate 120 for emitting light to pass through the side entrance surface 123. . The light source 130 can be, for example, a Cold Cathode Fluorescent Lamp (CCFL), a Hot Cathode Fluorescent Lamp (HCFL), a Light-Emitting Diode (LED), and an Organic Light Emitting Diode. Organic Light Emitting Diode (OLED), Flat Fluorescent Lamp (FFL), Electro-Luminescence (EL), Light Bar, Induction Lamp or the above random combination.

In an embodiment, the light source 130 can be an LED light bar comprising an LED component (not shown) and a substrate (not shown), the LED component being a surface mount LED package. The LED package is arranged in a plurality of lines in a straight line along the longitudinal direction of the substrate. The LED package is substantially made of an LED chip disposed in a cavity formed of ceramic or synthetic resin, and a translucent resin for molding a resin such as an epoxy resin or a silicone resin that seals the LED wafer. And constitute. The LED wafer can be an LED chip that emits blue light. A phosphor is mixed into the light-transmitting resin, and a yellow phosphor that emits yellow light having a complementary color relationship with blue light is used in order to emit white light.

The lighting fixture 100 may further include an adapter (not shown) and a lighting device (not shown). The lighting device may include a circuit board and a circuit component mounted on the substrate in a box-shaped casing, and the lighting device may be via an adapter. It is connected to a commercial AC power source and receives the AC power to generate a DC output. Therefore, the lighting device can be electrically connected to the light source 130, and the direct current output is supplied to the light source 130 to perform lighting control of the light source 130. This lighting device can be located and mounted externally or internally to the outer casing 110 (e.g., within the chamber 112).

Please refer to FIG. 3, which shows a cross-sectional view of a lighting fixture fixed to a ceiling according to an embodiment of the present invention. In an embodiment, the outer casing 110 can be secured to a support surface (eg, a ceiling panel or wall) using screws 140. The outer casing 110 may be provided with a plurality of screw holes 113, and the screw holes 113 may be disposed outside the outer casing 110. Therefore, the outer casing 110 can be fixed to the support surface by the screwing of the screw 140 and the screw hole 113 of the outer casing 110. Rather, the outer casing 110 of the luminaire may be secured to the support surface by other securing elements or auxiliary elements (not shown).

When the lighting fixture is fixed to the ceiling, the outer casing 110 of the lighting fixture can be mounted on the support bracket of the ceiling, and the size of the outer casing 110 or at least one length thereof is at least greater than adjacent The width of the ceiling opening between the support frames. Depending on the ceiling specifications, the ceiling opening between adjacent support frames may have a width of 910 mm to 450 mm, such as 910 mm, 900 mm, 600 mm, 590 mm, 455 mm or 450 mm. As such, when the lighting fixtures are mounted between the support frames of the ceiling, the sides or at least one side of the outer casing 110 may contact the support bracket of the ceiling, and both sides or at least one side of the outer casing 110 may support the brackets. Therefore, by fixing between the outer casing 110 of the lighting fixture and the support frame of the ceiling, the lighting fixture can be mounted on the ceiling, and the light emitting surface 121 exposed by the opening 111 of the outer casing 110 is the ceiling between the supporting brackets. Inside the opening. In an embodiment, the size of the light emitting face 121 of the lighting fixture may be substantially equal to the size of the ceiling opening (or ceiling panel), such as 910 mm * 455 mm, 600 mm * 600 mm or 910 mm * 910 mm. Alternatively, the length of the light emitting face 121 may be substantially equal to a width W that is slightly less than the ceiling opening, such as 910 mm, 900 mm, 600 mm, 590 mm, 455 mm, or 450 mm. Therefore, the lighting fixture of the present creation can replace at least one ceiling panel to be mounted on the ceiling while providing illumination.

When the lighting fixture 100 of the present embodiment is used for indoor lighting, for example, the housing 110 can be mounted on a wall or ceiling of the room to carry the transparent substrate 120 and the light source 130, and only the light emitting surface 121 of the transparent substrate 120 is exposed. When the illumination fixture 100 provides illumination, the light emitted by the light source 130 can enter the transparent substrate 120 and be reflected by the reflective microstructure 124 or dot pattern (not shown) on the reflective surface 122, such that the interior of the transparent substrate 120 Light can be emitted to the room (outside environment) via the light emitting surface 121.

When the lighting fixture 100 provides illumination, the light emitted by the light source 130 can enter the transparent substrate 120 through the side entrance surface 123 and be transmitted inside the transparent substrate 120. The total reflection transmission of light can be destroyed by the reflective microstructures 124 on the reflective surface 122, such that the interior of the transparent substrate 120 The light is reflected outside the light exit surface 121. It is worth noting that at this time, the brightness distribution of the lighting fixture 100 can be adjusted by the appropriate aspect ratio (W/D) of the reflective microstructures 124.

It can be seen from the above that the lighting fixture of the present invention can be directly installed on a supporting surface of a building, such as a ceiling or a wall, for providing indirect illumination and avoiding glare. Since the light of the light source is emitted only once, it can be emitted as indirect illumination, thereby reducing the loss of light energy, improving the utilization of light, and achieving energy saving effects.

Various aspects of these illustrative embodiments are described herein by those of ordinary skill in the art in the context of the teachings of those skilled in the art. However, it will be appreciated by those skilled in the art that embodiments of the present teachings can be implemented with only certain described aspects. For the purposes of illustration, specific quantities, materials, and configurations are presented to provide a complete understanding of the physical examples of the present invention. However, it will be understood by those skilled in the art that the embodiments of the present invention can be implemented without specific details. In other instances, well-known features are omitted or simplified to avoid obscuring the exemplary embodiments.

Terms such as "in some embodiments" and "in various embodiments" are used repeatedly. The term generally does not refer to the same embodiment; however, it may also refer to the same embodiment. Terms such as "including", "having" and "including" are synonymous, unless the context is intended to mean otherwise.

Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application.

110‧‧‧ outer casing

111‧‧‧ openings

112‧‧ ‧ room

120‧‧‧Transparent substrate

121‧‧‧Lighting surface

122‧‧‧reflecting surface

123‧‧‧Side into the glossy side

124‧‧‧Reflective microstructure

130‧‧‧Light source

Claims (10)

A lighting fixture comprising: an outer casing having an opening and at least one chamber, wherein the chamber is located on at least one side of the opening, the outer casing is mounted on a supporting surface of a building; a transparent substrate, Provided in the outer casing, and the opening of the outer casing exposes a light emitting surface of the transparent substrate; and at least one light source disposed in the housing of the outer casing to emit light to the transparent substrate, the light source emits Light is emitted to the outside through the light emitting surface of the transparent substrate. The lighting fixture of claim 1, wherein the outer casing is mounted on an indoor ceiling, an indoor wall, an exterior wall of an outdoor building, or a glass curtain. The lighting fixture of claim 1, wherein the transparent substrate has a shape of a rectangle, a circle, an ellipse, a rectangle, a triangle or an irregular shape. The lighting fixture of claim 1, wherein the outer casing is fixed to the supporting surface by using at least one screw, the outer casing is provided with a plurality of screw holes, and the screw holes are disposed on the outer casing Outside. The lighting fixture of claim 1, wherein the exposed surface of the outer casing has a shape of a rectangle, a circle, an ellipse, a rectangle, a triangle or an irregular shape. The lighting fixture of claim 1, wherein the side light incident surface is formed on at least one side of the transparent substrate, corresponding to a position of the light source, for The light emitted by the light source is allowed to enter the transparent substrate, and the side entrance surface has a V-shaped structure, an S-shaped wave structure or a surface roughening treatment. The lighting fixture of claim 1, wherein the plurality of reflective microstructures are arranged on the reflective surface of the transparent substrate, and the reflective microstructures are arranged continuously or discontinuously on the reflective surface. The lighting fixture of claim 7, wherein the reflective microstructures are in the form of a plurality of columns, a plurality of cones, a plurality of pyramids or a plurality of hemispheres. The lighting fixture of claim 7, wherein each of the reflective microstructures has a width to depth ratio equal to or greater than 10. The lighting fixture of claim 9, wherein each of the reflective microstructures has a width to depth ratio of 10 to 30.