TW201314128A - Illumination device - Google Patents

Abstract

An illumination device (100) including a panel (102) having a first face (104), a second face (108), a first side (114) and a second side (115), the panel (102) further having a matrix of light elements (106) extending through the panel (102) and a light source (112) adjacent at least one of the first or second sides (114, 115), wherein light from the light source (112) enters the panel (102) through the first side (114) or second side (115) to impinge on the light elements (106) in the matrix and deflect therefrom through the first face (104) or the second face (108).

Description

Lighting device

The present invention relates to lighting devices and, more particularly, to side lighting panels for illuminating an area or an object.

There are some lighting configurations for illuminating an area, such as a room or a light source used as a display panel. These lighting arrangements have used fluorescent lamps, which are generally associated with one or more separate diffusers. The panels are used together. Each diffuser panel has a series of projections or projections on one or both sides that are designed to receive light from the fluorescent tube and disperse the light in different directions, thus being illuminated The area can be exposed to the widest range of illumination, for example when lighting a room.

However, fluorescent tubes use an excessive amount of power, typically up to 140 W in four tubes in a 1 square meter panel. In addition, there is an added maintenance effort to replace the lamp with a new one. The above situation will result in a particularly large workload in the office where many fluorescent tubes are used, and these fluorescent tubes will eventually be replaced. Such a lamp is separate from the diffuser panel and thus makes replacement of each tube difficult and time consuming. The diffuser panel must be removed, then the old tube removed, then the replacement tube inserted and then the diffuser panel replaced. This is a very time consuming process.

In addition to the separation of one or more diffuser panels from the light source, each of the diffuser panels is configured with a pattern that does not provide sufficient efficiency to provide uniform light distribution and uniform power output to all portions of the illuminated area.

The present invention seeks to overcome one or more of the above disadvantages by providing an improved illumination device.

According to a first aspect of the present invention, the present invention provides a lighting device comprising: a panel having a first surface, a second surface, a first side, and a second a side panel, the panel further having a matrix of light elements, the matrix of light elements extending through the panel; and a light source adjacent to at least one of the first side or the second side; Light from the light source passes through the first side or the second side into the panel to impinge on the light element in the matrix and deflect from the light element through the first surface or the second surface.

The matrix extends within the panel from the first side to the second side and is not on the first surface or the second surface. The matrix of optical elements is elongated at an angle relative to the first surface and the second surface. The matrix extends substantially from the first side to the second side in the middle of the panel. The matrix extends from the first side to the second side on the first surface or the second surface.

In one embodiment, the panels may be formed from at least two sub-panels placed in a back-to-back manner. One or both of the two adjacent surfaces of each set of back-to-back sub-panels have a matrix that extends along the adjacent surfaces. Each sub-panel has substantially the same width. The illumination device can further include a diffuser panel that can be attached to the first surface or the second surface. The illumination device can further include a second diffuser panel that can be attached to the first surface or other surface outside of the second surface. The first side of the panel is preferably substantially parallel to the second side of the panel. The light source is elongated adjacent to or adjacent to the entire first side of the panel The entire second side. Alternatively, the light source is elongated adjacent to the entire first side of the panel and adjacent to the entire second side of the panel.

According to a second aspect of the present invention, the present invention provides a lighting device comprising: a panel having a first surface, a second surface, a first side, and a second a side panel, the panel further having a matrix of light elements, the matrix of light elements extending through the panel; and a light source adjacent to at least one of the first side or the second side; Light from the light source passes through the first side or the second side into the panel to impinge on the light element in the matrix and deflect from the light element through the first surface or the first a second surface; further wherein the matrix extends in the panel from the first side to the second side and is not on the first surface or the second surface.

According to the illumination device of the first or second aspect, the illumination device can be inserted into a mounting bracket attached to a structure comprising a pair of brackets and at least one fixing element.

Referring to Figure 1A, there is shown a lighting device (100) comprising a panel or a core (102) made of a substantially transparent material, such as an acrylic sheet or a plexiglass sheet. Above the first surface (104) of the panel (102), there is an array of optical elements or a matrix of optical elements (106) located there, such as a plurality of dots. An alternative name for the array of optical elements or matrix of optical elements (106) includes a matrix of optical elements or a matrix of points of optical elements. Similarly, below the second surface (108) of the panel (102), a dot matrix or array of dots (110) with optical elements is located there. Each of the matrices (106) and (110) generally includes tiny dots that collectively have at least 50 The diameters of μm can be spaced evenly or at regular intervals. The usual spacing between the dots is from 0.1 μm to 120 or 150 μm. The larger spacing is generally further from the source (112), which is adjacent to the first side or edge (114) and is used to create light that passes through the interior of the panel (102). The dots in each array may become larger in diameter as they are further away from the source (112). Farther from the source (112), at adjacent sources (112), the dots may generally be closer together and have a smaller size. By doing so, there is a more uniform distribution of light through the panel (102) in the illuminated area. An array of light sources (112) will be distributed along the first side or edge (114) and alternatively or additionally along the second side or edge (115). Typically the light source (112) is a light emitting element or a light emitting diode. Single or dual light emitting diodes can be used to provide output from surface (104) or (108) having up to 10,000 lumens per square meter, or up to 4,950 lumens per square meter or up to 45 watts per meter.

Light entering the panel (102) through the first side (114) will be reflected and refracted from the dots in each of the arrays (106, 110). Refraction from the interior of the top surface (104) and the bottom surface (108) will be reflected or refracted from elsewhere within the panel (102). Typically a uniform light distribution will protrude through the space outside each surface (104, 108), as indicated by the arrows, to illuminate an area or an object, such as an advertising panel.

A first or top diffuser (116) and a second or bottom diffuser (118) can be used to provide protection to the array of dots (106, 110). This also assists in spreading and directing the light generated by the interior of the core or panel (102).

Referring to Figure 1B, the figure shows a single dot matrix (106) of light elements on the top surface (104). In this direction, light originating from the array of light sources (112) enters the interior of the core panel (102) through the first side edge (114). Light then passes through the top surface (104) through the diffuser (116) in the direction indicated by the illustrated arrow and also passes through the diffuser through the bottom surface (108) in the direction indicated by the arrow. It is possible to place an opaque layer or a reflective layer on the surface (108) to The light refracted by the array of dots (106) is completely reflected through the interior of the core panel (102). The reflected light will then continue to move back in the direction of the array of dots (106) to travel through or through the diffuser (116). The reflective layer is preferably from 2 mm to 3 mm thick and may be made of a cellulose acetate sheet or a polymer sheet.

The dot matrix (106, 110) may be formed by a laser etch process or other etching process as is known in the art. The laser can be programmed to produce a pattern of specific dot matrixes, such as the size of each dot or the spacing between each dot. Each of the outer diffusers (116) and (118) can be bonded to each surface (104, 108) of the core panel (102). A dot matrix (106) can be placed on the bottom surface (108) rather than the top surface (104), a reflective layer being selectively formed on the top surface (104) or near the top surface (104) to be similar to The manner described in Figure 1B affects light.

Referring to Figure 1C, which shows another embodiment of the present invention, the single dot matrix (120) of the optical elements shown in this embodiment is located inside the core panel (102). In this example, the dot matrix (120) is substantially in the middle of the core panel (102). The dot matrix (120) can be produced by a laser etch pattern as is known in the art. It has been found that by using this subsurface etched panel, a more uniform light distribution may be achieved. Light input from the array of light emitting diodes (112) into the interior of the panel (102) is reflected from and reflected by each of the dots in the array (120) and can be reflected by or from each surface (104, 108). Part of the light reflected within the panel (102) may be reflected or refracted by any one or more of the dots in the array (120) and then output through a diffuser (116) or diffuser (118). Ideally, the thickness of the core panel is between 10 mm and 16 mm, and each diffuser has a thickness of about 3 mm.

Even though the light element matrix (120) is shown in a plane substantially parallel to the surface (104, 108), the matrix may be at an angle relative to the surface (104, 108) or may be curved across the side (114) to A path of the side edges (115), either in a curved, angled, or parallel combination. Can make The matrix plane is relative to the surface (104) and the surface (108) having an angular range between 5 and 10 degrees, and preferably 7 degrees. The etching of the array of light elements (120) within the core (102) can be at different angles relative to the surfaces. As previously stated, the pitch and size of the dots in the array can be varied.

Referring to Figures 1D and 1E, the figures show an alternative embodiment as illustrated in Figure 1C, whereby the two separate center panels (122, 124) can be joined or bonded back to back. One or both of the panels (122, 124) may have an array of dots whose surfaces are etched. In the example of the panel (122) in Fig. 1D, the panel (122) can be positioned on the bottom surface (123), and in the example with respect to the panel (124), the dots can be on the top surface (125) ) is etched. In Figure 1E, the panel (122) is inverted or flipped so that the dot matrix on the top surface (127) of the 1D map is flipped and then bonded to the panel (124), thus the array or dot A matrix (126) is present in the middle of the joint panels (122, 124). The operation of the light distribution from the array (122) is similar to the light distribution operation described in relation to Figure 1C.

Referring to Figure 1D, the core panels (122, 124) are collimated in the same manner, so the array of dots is positioned on the bottom surface (123) of the panel (122) and the array of dots on the panel (124) Located on the top surface (125) of the panel (124) and effectively increasing the number of dots between the panels (122, 124) interface. In Figure 1E, the panels (122, 124) are collimated in the opposite manner. The thickness of each of the panels (122, 124) is preferably about 5 mm, but can be made in different thicknesses.

Referring to Fig. 2, a partial cross-sectional view of the panel assembly (100) is shown, with the panel assembly (100) being fitted to the fixture or structure by the bracket (200). The bracket (200) has a clip (202) that can be opened or closed to cause the existing panel assembly (100) to be released and replaced with a new panel assembly (100). The protective member (203) is used to insert or replace an old panel, such as a magnet on each of the wire clamp (202) and the panel (100). Similarly, the end (204) of the clip (202) distal of the protective member (203) can be attached to the bracket in the corresponding groove by a suitable securing member (200), such as a magnet or a Velcro hook and ring material. The LED strips (112) on each panel (200) have a common lead/plug that can be inserted into corresponding receptacles of the LED driver in or near the bracket (200). The LED driver can be used to control the dimming of the panel or to control the color intensity of the LED.

Figure 3 shows the panels (100) that are mounted in pairs of brackets (200, 300) that have clips (202, 302), respectively.

It can be seen that by simply removing the clamp (202, 302), removing the existing panel and replacing the panel with a new panel, and re-actuating the clamp, the complete core panel and diffuser will be replaced in one operation. much easier. Energy savings of up to 140 W to 30 W (usually on a square panel) are possible compared to four fluorescent tubes using up to 140 W power on about one square meter.

Each of the panels (100) including the diffusers (116, 118) typically has an area of 0.5 to 2 square meters. The size and spacing used for the dots depends on the distance from the LED and the size of the panel. The light element may be configured in the shape of a sphere, a hemisphere, a circle or a diamond. The proportion of light reflected or refracted by the matrix of light elements (106, 110, 120) will vary with the design and location of the matrix in each element.

100‧‧‧Lighting device

102‧‧‧ Panel

104‧‧‧ first surface

106‧‧‧Light element matrix

108‧‧‧second surface

110‧‧‧Light component matrix

112‧‧‧Light source/diode

114‧‧‧First side

115‧‧‧Second side

116‧‧‧Top diffuser

118‧‧‧ bottom diffuser

120‧‧‧ dot array

122‧‧‧ Panel

123‧‧‧ bottom surface

124‧‧‧ panels

125‧‧‧ top surface

126‧‧‧ dot matrix

127‧‧‧ top surface

200‧‧‧ bracket

202‧‧‧clamp

203‧‧‧protective components

204‧‧‧End

300‧‧‧ bracket

302‧‧‧clamp

Preferred embodiments of the present invention will be described below by way of example only, with reference to the drawings as follows: Figure 1 (a) is a side view of a lighting device having a panel, the inlay a first surface and a second surface of the board having a matrix of optical elements; a first (b) view of a side view of a lighting device according to another embodiment of the present invention, the lighting device having a panel, a first surface of the panel There is a matrix of optical elements; FIG. 1(c) is a side view of a lighting device according to another embodiment of the present invention, the lighting device Having a panel, the matrix of optical elements is located in the middle of the panel; FIGS. 1(d) and 1(e) are side views of a lighting device according to another embodiment of the present invention, the lighting device having back-to-back a pair of sub-panels formed by the method, the matrix of optical elements is located between the pair of sub-panels; FIG. 2 is a partial cross-sectional view of the panel, the panel is fitted into a mounting bracket of a structure; and FIG. 3 is embedded A full cross-sectional view of the panel, the panel being shown mated into a pair of mounting brackets of a structure.

100‧‧‧Lighting device

112‧‧‧Light source/diode

202‧‧‧clamp

200‧‧‧ bracket

204‧‧‧End

203‧‧‧protective components

302‧‧‧clamp

300‧‧‧ bracket

Claims (16)

A lighting device comprising: a panel having a first surface, a second surface, a first side, and a second side, the panel further having a matrix of optical elements, The matrix of light elements is extended through the panel; and a light source adjacent to at least one of the first side or the second side; wherein light from the source passes through the first side or The second side enters the panel to impinge on the light element in the matrix and deflect from the light element through the first surface or the second surface. The illuminating device of claim 1, wherein the matrix extends in the panel from the first side to the second side and is not on the first surface or the second surface. The illumination device of claim 1 or 2, wherein the matrix of optical elements is elongated at an angle relative to the first surface and the second surface. The lighting device of claim 1 or 2, wherein the matrix extends substantially from the first side to the second side in the middle of the panel. The illuminating device of claim 1 or 2, wherein the matrix extends from the first side to the second side on the first surface or the second surface. A lighting device according to any of the preceding claims, wherein the panel is formed by at least two sub-panels placed in a back-to-back manner. The illuminating device of claim 6, wherein one or both of the two adjacent surfaces of each set of back-to-back sub-panels have the matrix extending along the adjacent surfaces. The illuminating device of claim 7, wherein each of the sub-panels has substantially the same width. The illumination device of any of the preceding claims, further comprising a diffuser panel, the diffuser panel being attachable to the first surface or the second surface. The illuminating device of claim 9, the illuminating device further comprising a second diffuser panel, the second diffuser panel being attachable to the first surface or other surface outside the second surface. The illumination device of any of the preceding claims, wherein the first side is substantially parallel to the second side. The illumination device of any of the preceding claims, wherein the light source is elongated adjacent to the entire first side or adjacent to the entire second side. The illuminating device of any one of clauses 1 to 11, wherein the light source is elongated adjacent to the entire first side and adjacent to the entire second side. The illumination device of any of the preceding claims, wherein the light source is one or more light emitting diodes. A lighting device comprising: a panel having a first surface, a second surface, a first side, and a second side, the panel further having a matrix of optical elements, The matrix of light elements is extended through the panel; and a light source adjacent to at least one of the first side or the second side; wherein light from the source passes through the first side or The second side enters the panel to impinge on and deflect from the optical element in the matrix through the first surface or the second surface; further wherein the matrix is within the panel The plane from the first side to the second side is extended and not on the first surface or the second surface. A lighting device according to any of the preceding claims, which is insertable into a mounting bracket attached to a structure comprising a pair of brackets and at least one fixing element.