TWI487870B - Lighting device with emergency indication - Google Patents

Description

Escape indicator lighting

The present invention relates to a lighting fixture, and more particularly to an escape indicating lighting fixture.

The conventional lighting fixtures and escape indicator lamps are classified into two different situations. Further, the lighting fixtures are suitable for the normal power supply of the utility power supply, and the lighting fixtures can uniformly emit light to provide sufficient and uniform illumination of the surrounding environment. In order to enable the person in the lighting environment of the lighting fixture to clearly identify the objects in the lighting environment. The escape indicator light is suitable for the case where the mains power is cut off, and the escape indicator can display the escape mark printed on the transparent plate for the escaper to observe the escape sign.

However, such an escape indicator has the function of uniform illumination when the mains power supply is normally supplied, and the illumination fixture does not have the function of escape indication when the mains supply is powered off. Therefore, if people want to have the function of uniform lighting and escape instructions in the place where people live or work, they must also install escape indicator lights and lighting fixtures. In addition to making the living environment more than many lamps, it also creates an environment. Unsightly and increase the cost of use.

Therefore, the present inventors have felt that the above-mentioned deficiencies can be improved, and they have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

Embodiments of the present invention provide an escape indicating lighting fixture and an illumination module thereof The group can interact with different LED light groups through the light guiding property of the light guide plate to integrate two low-compatibility lamps.

An embodiment of the present invention provides an escape indicator illumination lamp electrically connected to a mains power supply. The escape indication illumination lamp includes: a light emitting module, comprising: a light guide plate having at least one first light incident surface and at least one second a light-incident surface and a light-emitting surface, the light-emitting surface is provided with a plurality of illumination light guiding microstructures and a plurality of indicator light guiding microstructures, wherein the illumination light guiding microstructures are arranged at a first density, and the indicating light guides The microstructures are arranged at a second density greater than the first density, and the integral contours of the light guiding microstructures constitute an escape indicating pattern; an LED lighting group facing the first light entering the light guiding plate The light emitted by the LED illumination group can pass through the first light incident surface into the light guide plate, and the light guide surface passes through the light guide plate; and an LED escape indicator group faces The second light incident surface of the light guide plate is configured such that light emitted by the LED illumination group can pass through the second light incident surface into the light guide plate, and the light guide plate passes through the light guide plate, and The brightness of the LED escape indicator group is less than The brightness of the LED lighting group; a rechargeable battery electrically connected to the LED escape indicator group for providing the DC power required by the LED escape indicator group; a transformer electrically connected to the LED illumination group And the rechargeable battery, and the transformer is electrically connected to the mains power source to convert the alternating current power provided by the mains power source into the direct current power required by the LED lighting group and the rechargeable battery; and a controller, the electric Is electrically coupled to the LED lighting group and the LED escape indicator group; wherein when the controller detects that the LED lighting group is electrically connected to the transformer, the controller interrupts the rechargeable battery and the LED Current transmission between the escape indicator sets such that the escape indicator illumination fixture is in an illuminated state; when the controller detects that the LED illumination group is non-conducting with the transformer, the controller turns on the charging Current transmission between the battery and the LED escape indicator set, such that the light emitted by the LED escape indicator set can be illuminated through the indication light guiding microstructures, and the escape indication lighting fixture In an escape state indicative; whereby, when the LED lamp set through the first light incident surface, so that when the surface shiny, indicating a pattern of the escape The luminance is not higher than 10% of the peripheral luminance; when the LED escape indicator group passes through the second light incident surface to make the light emitting surface bright, the escape indication pattern has a luminance not less than twice its peripheral luminance.

The embodiment of the present invention further provides a light-emitting module for an escape indicating illumination lamp, comprising: a light guide plate having at least one first light-incident surface, at least one second light-incident surface, and a light-emitting surface, wherein the light-emitting surface is provided with a number Illuminating light guiding microstructures and a plurality of indicating light guiding microstructures, the lighting light guiding microstructures being arranged at a first density, the indicating light guiding microstructures being arranged at a second density greater than the first density And the integral contours of the light guiding microstructures constitute an escape indicating pattern; an LED lighting group facing the first light incident surface of the light guiding plate, so that the light emitted by the LED lighting group can Passing through the first light incident surface into the light guide plate, and passing the light guide plate through the light guide plate; and an LED escape indicator set facing the second light incident surface of the light guide plate, so that the The light emitted by the LED illumination group can pass through the second light incident surface into the light guide plate, and the light guide surface passes through the light guide plate, and the LED escape indicator group and the LED illumination light group are not used. To operate simultaneously, the brightness of the LED escape indicator set The brightness of the LED lighting group; wherein, when the LED lighting group is in operation, the escape indication pattern exhibits a brightness substantially equal to the brightness of the surrounding light emitting surface; when the LED escape indicator group operates, The indicator light guiding microstructures guide the light emitted by the LED escape indicator group such that the brightness of the escape indicating pattern is greater than the brightness of the surrounding light emitting surface; thereby, when the LED lighting group passes The first light-incident surface, when the light-emitting surface is brightened, the brightness of the escape indication pattern is not higher than 10% of the peripheral luminance; when the LED escape indicator light passes through the second light-incident surface, the light-emitting surface is made When illuminated, the escape indication pattern has a luminance that is not less than twice its peripheral luminance.

The embodiment of the invention further provides an illumination module for the escape indication illumination lamp, comprising a light guide plate, an LED illumination lamp group and an LED escape indicator group. The light guide plate has at least one first light incident surface, at least one second light incident surface and a light exit surface. a first light incident surface on a side of the light guide plate, and a second light incident surface on a side of the light guide plate and located at a side Below the light surface, the light exit surface is located at the top of the light guide. The light-emitting mask has an illumination light-emitting area and an indication light-emitting area. A plurality of illumination light guiding microstructures are arranged on the surface of the illumination light-emitting area, and the illumination light guiding microstructures are arranged at a first density; the indication light-emitting area is concave on the top of the light guide plate and the overall contour forms an escape indication pattern, and the surface is arranged in several Indicating a light guiding microstructure, indicating that the light guiding microstructure is arranged at a second density greater than the first density.

The LED illumination group faces the first light incident surface of the light guide plate, so that the light emitted by the LED illumination group can pass through the first light incident surface into the light guide plate, and the light exit surface passes through the light guide plate. The LED escape indicator group faces the second light-incident surface of the light guide plate, so that the light emitted by the LED escape indicator group can pass through the second light-incident surface into the light guide plate, and the light-emitting surface passes through the light guide plate. Moreover, the LED escape indicator group and the LED illumination group are not used for simultaneous operation, and the brightness of the LED escape indicator group is smaller than the brightness of the LED illumination group. Wherein, when the LED lighting group is operated, the brightness of the escape indicating pattern is substantially equal to the brightness of the surrounding light emitting surface; when the LED escape indicator group is in operation, indicating the light guiding microstructure guiding LED escape indicator group The emitted light is such that the escape indication pattern exhibits a brightness greater than that exhibited by the surrounding illuminating surface. Thereby, when the LED illumination lamp group passes through the first light-incident surface to make the light-emitting surface bright, the brightness of the escape indication pattern is not higher than 10% of the peripheral luminance; when the LED escape indicator group passes through the second light-incident surface, When the light-emitting surface is brightened, the brightness of the escape indication pattern is not less than twice the brightness of its periphery.

The embodiment of the invention further provides an illumination module for the escape indication illumination lamp, comprising a light guide plate, an LED illumination lamp group and an LED escape indicator group. The light guide plate has a first light incident surface, a second light incident surface, an interface, an illumination light emitting region and an indicating light emitting region. The first light incident surface is located at a side of the light guide plate, and the second light incident surface is located at a side of the light guide plate and below the first light incident surface; the interface is formed on the interlayer between the top and the bottom of the light guide plate, and the relative position is between Between the first light incident surface and the second light incident surface, the interface is integrally contoured to form an escape indication pattern. The illumination light-emitting area is formed on the interface, and a plurality of illumination light guiding microstructures are arranged on the surface, and the illumination light guiding microstructure is first The light-emitting area is located at the bottom of the light guide plate and corresponds to the area not covered by the interface, and the surface is provided with a plurality of indicating light guiding microstructures, and the light guiding microstructures are arranged at a second depth greater than the first depth. .

The LED illumination group faces the first light-incident surface of the light guide plate, so that the light emitted by the LED illumination group can pass through the first light-incident surface into the light guide plate, and then passes through the illumination light guide microstructure and then passes through the light guide. Light board. The LED escape indicator group faces the second light incident surface of the light guide plate, so that the light emitted by the LED escape indicator light can pass through the second light incident surface into the light guide plate, and after indicating the light guide microstructure Wear the light guide plate.

The embodiment of the invention provides a lighting module for an escape indicating lighting fixture, comprising a light guide plate, an LED lighting group and an LED escape indicator group. The light guide plate has a first light incident surface, a second light incident surface, an interface, an illumination light emitting region and an indicating light emitting region. The first light incident surface is located at a side of the light guide plate, and the second light incident surface is located at a side of the light guide plate and below the first light incident surface. The interface is formed on the interlayer between the top and the bottom of the light guide plate, and the relative position is between the first light incident surface and the second light incident surface, and the interface is integrally contoured to form an escape indication pattern. The illumination light-emitting area is formed on the top of the light guide plate at a position relative to the area covered by the interface, and the surface is provided with a plurality of illumination light guiding microstructures. The indication light-emitting area is formed on the top of the light guide plate and the position is not covered by the interface, and the surface is provided with several indicating light guiding microstructures.

The LED illumination group faces the first light incident surface of the light guide plate, so that the light emitted by the LED illumination group can penetrate into the light guide plate through the first light incident surface, and is illuminated by the illumination light guide microstructure after being reflected by the interface. , wear out the light guide plate. The LED escape indicator group faces the second light incident surface of the light guide plate, and the directivity is toward an area covered by the interface of the light guide plate so that the light emitted by the LED escape indicator group can pass through the second light incident surface. The light is incident on the light guide plate, reflected by the bottom of the light guide plate, and then guided by the light guide microstructure to pass through the light guide plate.

In summary, the escape indicator illumination lamp and the illumination module thereof provided by the embodiments of the present invention can cooperate with different LED illumination lamp groups and LED escape indicator groups through the light guide plate to generate different effects. And the integration is not compatible. Type of fixture.

The detailed description of the present invention and the accompanying drawings are to be understood by the claims The scope is subject to any restrictions.

100‧‧‧Escape indicator lighting

1‧‧‧Lighting module

11‧‧‧Light guide

110‧‧‧ interface

111‧‧‧First light entry

112‧‧‧Second entrance

113‧‧‧Glossy

1130‧‧‧Lighting light guide microstructure

1131‧‧‧Indicating light guiding microstructure

1132‧‧‧Escape indicator pattern

1133‧‧‧ first block

1134‧‧‧Second block

1135‧‧‧ third block

12‧‧‧LED lighting group

13‧‧‧LED escape indicator set

131‧‧‧First Light Set

132‧‧‧Second light group

133‧‧‧3rd light group

14‧‧‧Light stand

15‧‧‧Diffuser

16‧‧‧Escape indicator

2‧‧‧Rechargeable battery

3‧‧‧Transformers

4‧‧‧ Controller

5‧‧‧Lighting area

6‧‧‧Indicative lighting zone

7‧‧‧Red LED

8‧‧‧White LED

S1‧‧‧ first direction

S2‧‧‧ second direction

S3‧‧‧ third direction

C1, C2, C3‧‧‧ center optical axis

200‧‧‧mains power supply

1 is a functional block diagram of an escape indicating lighting fixture of the present invention.

2 is a schematic plan view showing the lighting module of the escape indicating lighting fixture of the present invention in a side-in type and in an illuminated state.

FIG. 3 is a schematic plan view showing the light-emitting module of the escape indicating lighting fixture of the present invention in a side-entry type and in an escape indication state.

4 is a partially enlarged schematic view of the area A of FIG. 3.

FIG. 5 is another schematic plan view showing the light-emitting module of the escape indicating lighting fixture of the present invention in a side-entry type.

FIG. 6 is still another schematic plan view of the light-emitting module of the escape indicating lighting fixture of the present invention.

FIG. 7 is a schematic plan view showing the light-emitting module of the escape indicating lighting fixture of the present invention in a direct type.

FIG. 8 is another schematic plan view showing the light-emitting module of the escape indicating lighting fixture of the present invention in a direct type.

Figure 9 is a plan view of a light guide plate according to an embodiment of the present invention.

Figure 10 is a side elevational view of the light guide of Figure 9.

FIG. 11 is a schematic structural view of a light guide plate according to another embodiment of the present invention.

Fig. 11A is a partially enlarged schematic view showing a region A of Fig. 11.

FIG. 12 is a schematic structural view of a light guide plate according to still another embodiment of the present invention.

Please refer to FIG. 1 to FIG. 8 , which are an embodiment of the present invention. It is to be noted that the shapes and related quantities mentioned in the drawings corresponding to the embodiments are only used to specifically describe the embodiments, so as to facilitate Know the contents of this embodiment, rather than limiting the invention The scope of rights.

Please refer to FIG. 1 , which is a functional block diagram of the escape indication lighting fixture 100 provided by the embodiment. The escape indicator lighting fixture 100 is electrically connected to a utility power supply 200 (such as a commercial power socket) for providing alternating current, and the escape indication lighting fixture 100 includes a lighting module 1, a rechargeable battery 2, a transformer 3, and a Controller 4. The light-emitting module 1 has a transparent light guide plate 11 (FIG. 2), an LED illumination group 12, and an LED escape indicator set 13, and the LED escape indicator set 13 and the LED illumination group. 12 is not used to operate at the same time.

In more detail, the rechargeable battery 2 is electrically connected to the LED escape indicator set 13 for providing the DC power required by the LED escape indicator set 13. The transformer 3 is electrically connected to the LED lighting group 12 and the rechargeable battery 2, and the transformer 3 is electrically connected to the commercial power source 200 to convert the alternating current provided by the commercial power source 200 into the LED lighting group 12 and charging. The DC power required for battery 2. The controller 4 is electrically coupled to the LED illumination light set 12 and the LED escape indicator set 13 .

Thereby, when the controller 4 detects that the LED illumination group 12 and the transformer 3 are turned on (that is, the mains power supply 200 continues to supply power to operate the LED illumination group 12), the controller 4 interrupts the rechargeable battery. The current transfer between the LED and the LED escape indicator set 13 is such that the escape indicator illumination fixture 100 is in an illuminated state (Fig. 2). Moreover, when the controller 4 detects that the LED illumination group 12 and the transformer 3 are non-conducting (that is, the mains power supply 200 stops supplying power, and the LED illumination group 12 stops operating), the controller 4 turns on. The current between the rechargeable battery 2 and the LED escape indicator set 13 is transmitted such that the escape indicating lighting fixture 100 is in an escape indication state (Fig. 3). It should be noted that the brightness of the LED escape indicator group 13 is less than the brightness of the LED illumination group 12, that is, the LED escape indicator group 13 consumes less power per unit time than the LED illumination group 12 The power consumed per unit of time.

The function of the escape indicating lighting fixture 100 of the present embodiment and the operation mode thereof have been described above, but the specific implementation manner of the escape indicating lighting fixture 100 can be set according to Adjusted by the needs of the meter, there is no restriction here. For example, in the present embodiment, the illumination module 1 of the escape indicator lighting fixture 100 will be described in terms of the configuration of the side-entry illumination module 1 and the direct-lit illumination module 1. Not limited to this.

It should be noted that the main features of the light-emitting module 1 of the present embodiment are the specific configurations of the components and the connection and relative relationship between the components, and the components of the light-emitting module 1 of the present embodiment are Installation (e.g., locking, fitting, and pasting) applied to the luminaire is not the focus of the present invention and therefore will not be described in detail in this embodiment.

[side-entry lighting module]

As shown in FIG. 2 to FIG. 4 , the light-emitting module 1 has a light guide plate 11 , an LED illumination group 12 , and an LED escape indicator set 13 . The light guide plate 11 has a rectangular plate body and has two first light incident surfaces 111, two second light incident surfaces 112, and a light exit surface 113. Further, the light-emitting surface 113 is a plate surface of the light guide plate 11, and the first light-incident surface 111 and the second light-incident surface 112 are connected to the periphery of the light-emitting surface 113, and the two first light-incident surfaces 111 are The opposite two long sides of the light guide plate 11 and the two second light incident surfaces 112 are opposite short sides of the light guide plate 11.

The light-emitting surface 113 of the light guide plate 11 is formed with a plurality of illumination light guide microstructures 1130 and a plurality of indicator light guide microstructures 1131 (FIG. 4), and the illumination light guide microstructures 1130 are arranged at a first density. And indicating that the light guiding microstructures 1131 are arranged at a second density greater than the first density, and indicating that the overall contour of the light guiding microstructures 1131 constitutes an escape indicating pattern 1132, and the illumination light guiding microstructures 1130 are distributed The portion of the light-emitting surface 113 other than the escape indication pattern 1132. The escape indication pattern 1132 can be designed into various patterns according to requirements. In the embodiment, the arrow-shaped escape indication pattern 1132 is exemplified, but in practice, it is not limited thereto.

The indicator light guiding microstructure 1131 includes a first block 1133, a second block 1134, and a third block 1135. The above second block 1134 and the third The block 1135 is mirror-symmetrical with respect to the first block 1133, and the second block 1134 and the third block 1135 respectively intersect on opposite sides of one end portion of the first block 1133 (such as the first block 1133 in FIG. 2). The upper part of the left side is on the lower side). In more detail, the first block 1133 is arranged substantially along a first direction S1, the second block 1134 is arranged substantially along a second direction S2, and the third block 1135 is arranged substantially along a third direction S3. The first direction S1 is formed with an acute angle with the second direction S2 and the third direction S3, respectively.

The LED illumination lamp groups 12 are respectively disposed adjacent to the first light incident surface 111 of the light guide plate 11 , and the LED illumination lamp groups 12 respectively face the first light incident surface 111 of the light guide plate 11 to enable the LED illumination group 12 to The emitted light can pass through the first light incident surface 111 into the light guide plate 11 , and the light exit surface 113 penetrates the light guide plate 11 . Further, the illumination range of the LED illumination lamp set 12 substantially completely covers the first light incident surface 111 of the light guide plate 11. In addition, in FIG. 2, the LED illumination lamp groups 12 are respectively disposed on the upper side and the lower side of the light guide plate 11, but it is not excluded that only the LED illumination lamp group 12 is disposed on one side of the light guide plate 11.

The LED escape indicator set 13 is disposed adjacent to the second light-incident surface 112 of the light guide plate 11, wherein the LED escape indicator set 13 includes a first light group 131, a second light group 132, and a third Light set 133. The first lamp group 131 faces the right second light incident surface 112 of the light guide plate 11 and is located on the extending path of the first block 1133 along the first direction S1, and the second light group 132 and the third light group 133 face the light guide plate. The second light incident surface 112 on the left side of the 11th, and the second light group 132 is located on the extended path of the second block 1134 along the second direction S2, and the third light group 133 is located along the third direction in the third block 1135 On the extended path of S3. Thereby, the light emitted by the LED escape indicator set 13 can be incident into the light guide plate 11 via the second light incident surface 112, and the light guide surface 11 can be passed through the light guide plate 11.

Furthermore, the color of the light emitted by the LED escape indicator set 13 is different from the color of the light emitted by the LED illumination set 12. The first light group 131, the second light group 132, and the third light group 133 emit the same color of light. The light emitted by the first light group 131, the second light group 132, and the third light group 133 respectively defines a central optical axis C1, C2, C3, and the first light group 131, the second light group 132, and the first The central optical axes C1, C2, and C3 of the three-lamp group 133 are parallel to the first direction S1, the second direction S2, and the third direction S3, respectively. In other words, the illumination range of the first lamp group 131 substantially covers the portion of the right second light incident surface 112 corresponding to the light guiding microstructure 1131, and the illumination range of the second light group 132 and the third light group 133 substantially covers the left side. The second light incident surface 112 corresponds to a portion indicating the light guiding microstructure 1131.

The specific configurations of the components of the side-entry type light-emitting module 1 and the connection and relative relationship between them have been described above. The actual operation of the side-entry light-emitting module 1 will be described below.

As shown in FIG. 2, when the escape indicating lighting fixture 100 is in an illuminated state (ie, the mains power supply 200 is continuously powered to operate the LED lighting group 12), the illumination range through the LED lighting unit 12 substantially completely covers the guiding The first light-incident surface 111 of the light-emitting plate 11 is such that the light emitted from the LED illumination lamp group 12 is transmitted through the light guide plate 11 and is emitted from the light-emitting surface 113. The brightness of the escape indication pattern 1132 is substantially equal to The brightness of the light-emitting surface 113 around it. Thereby, providing sufficient and uniform light illumination around the environment, the person in the lighting environment of the escape indicator lighting fixture 100 can clearly identify the objects in the lighting environment.

As shown in FIG. 3, when the escape indicating lighting fixture 100 is in the escape indication state (that is, the mains power supply 200 stops supplying power and the LED lighting group 12 is suspended), the illumination range of the LED escape indicator group 13 is substantially covered by the illumination range. The second light incident surface 112 corresponds to the portion of the light guiding microstructure 1131 so that the light emitted by the LED escape indicator light 13 passes through the light guide plate 11 , and then the light guiding microstructure 1131 is guided to the LED escape indicator. The light emitted by the group 13 is emitted from the light-emitting surface 113, so that the brightness of the escape indicating pattern 1132 is greater than the brightness exhibited by the surrounding light-emitting surface 113. Thereby, the escape indication lighting fixture 100 can be used by the escaper to observe the escape indication pattern 1132 in a more efficient manner.

In summary, when the LED lighting group 100 passes through the first light incident surface 111, the light is emitted. When the surface 113 is bright, the brightness of the escape indication pattern 1132 is not higher than 10% of the peripheral luminance thereof; and when the LED escape indicator group 100 passes through the second light incident surface 112 to make the light emitting surface 113 bright, The escape indication pattern 1132 has a luminance that is not less than twice the luminance of its periphery.

In addition, in addition to the implementation of the side-entry lighting module 1 described above, the side-entry lighting module 1 provided in this embodiment may have other different implementation manners, for example, as shown in FIG. 5 . The first light group 131, the second light group 132, and the third light group 133 are disposed along the left second light incident surface 112 of the light guide plate 11, and the first light group 131 and the second light group 132 and the third light group 133 face the second light incident surface 112 on the left side of the light guide plate 11. Moreover, the left portion of the first block 1133 indicating the light guiding microstructure 1131, the second block 1134, and the third block 1135 substantially correspond to the illumination range of the LED escape indicator set 13.

Moreover, as shown in FIG. 6 , the LED escape indicator groups 13 are respectively disposed adjacent to the second light-incident surface 112 of the light guide plate 11 , and the LED escape indicator groups 13 respectively face the second light-incident surface 112 of the light guide plate 11 . . Further, the illumination range of the LED escape indicator set 13 substantially completely covers the second light incident surface 112 of the light guide plate 11. In addition, in FIG. 6, the LED escape indicator groups 13 are respectively disposed on the left side and the right side of the light guide plate 11, but it is not excluded that only the LED escape indicator group 13 is disposed on one side of the light guide plate 11.

[Direct Light Module]

Please refer to FIG. 7 , which is an embodiment of the direct-lit light-emitting module 1 of the present embodiment. The direct-type light-emitting module 1 shown in FIG. 7 is similar in structure to the above-described side-entry light-emitting module 1 . It will not be repeated, and the differences between the two are mainly as follows.

The direct-lit light-emitting module 1 further includes a light stand 14 and a diffuser plate 15 , wherein the diffuser plate 15 is disposed at the bottom of the light stand 14 , the LED light set 12 is disposed at the top of the light stand 14 , and the LED The illumination direction of the illumination group 12 faces the diffusion plate 15.

The light guide plate 11 has a rectangular plate body and has a first light incident surface 111, two second light incident surfaces 112, and a light exit surface 113. Further, the light-emitting surface 113 is a plate surface of the light guide plate 11 that is in contact with the diffusion plate 15, and the first light-incident surface 111 is the other surface of the light guide plate 11 on the opposite side of the light-emitting surface 113, and the two The second light incident surface 112 is the opposite side surfaces of the light guide plate 11.

The light-emitting surface 113 of the light guide plate 11 is formed with a plurality of illumination light guide microstructures and a plurality of indicator light guide microstructures, and the illumination light guide microstructures are arranged at a first density, and the light guide microstructures are indicated by A second density greater than the first density is aligned and indicates that the overall contour of the light guiding microstructure forms an escape indicating pattern. Since the illumination light guiding microstructure and the indicating light guiding microstructure and the escape indicating pattern thereof are introduced in the above-mentioned side-entry lighting module 1, and the positional relationship of the LED escape indicator group 13 with respect to the light guide plate 11 is also It has been described in the above-mentioned side-entry type light-emitting module 1, and therefore will not be described again.

In addition, in addition to the embodiment of the direct-lit light-emitting module 1 described above, the direct-lit light-emitting module 1 provided in this embodiment may have other different implementations. For example, as shown in FIG. The direct-lit light-emitting module 1 can further include a transparent escape indicator 16 , and the escape indicator 16 is disposed on the light-emitting surface 113 of the light guide 11 . That is, the escape indicator 16 is interposed between the light-emitting surface 113 of the light guide plate 11 and the diffusion plate 15.

The escape indicator sheet 16 is formed with a plurality of indicator light guiding microstructures, and the overall contour of the light guiding microstructure is configured to constitute an escape indication pattern. Similarly, since the escape indicating pattern indicating the light guiding microstructure and its configuration has been introduced in the above-described side-entry lighting module 1, it will not be described again.

When the escape indicating lighting fixture 100 is in the escape indication state (that is, the mains power supply 200 stops supplying power and the LED lighting group 12 is suspended), the illumination range of the LED escape indicator group 13 substantially covers the second input. The light surface 112 corresponds to the portion of the light guiding microstructure 1131 so that the light emitted by the LED escape indicator light 13 is irradiated to the escape indicator sheet 16 via the light guide plate 11 to indicate the light guide micro junction. The structure 1131 directs the light emitted by the LED escape indicator set 13 such that the brightness of the escape indication pattern 1132 is greater than the brightness presented around it. Thereby, the escape indication lighting fixture 100 can provide the escape indicator to observe the escape indication pattern 1132 in a more efficient manner.

In addition, the side-entry type light-emitting module 1 of the present embodiment does not exclude the addition of the escape indicator sheet 16 and the diffusion plate 15 on the light-emitting surface 113, and the specific additional manners and structures are not described herein.

[Light Guide Design]

Next, in the following embodiments of the present invention, a design scheme for achieving the light guide plate 11 of the above embodiments is introduced; in these designs, only a suitable light source, that is, the aforementioned LED illumination lamp group 12 and the LED escape indication can be used. The light group 13 can realize the escape indicating illumination lamp with two illumination modes and the light-emitting module thereof without additionally adding the escape indicator 16 and the diffusion plate 15, and the two compatibility are not high. The type of luminaire is integrated. The following is a description of the design of the light guide plate 11 by taking the side-entry backlight module as an example. However, the skilled artisan can apply the direct-type backlight module to the direct-lit backlight module after the teaching of the present invention, without departing from the invention. category.

9 and FIG. 10, FIG. 9 is a plan view of the light guide plate 11 of an embodiment, and FIG. 10 is a side view of the light guide plate 11 of FIG. From Fig. 9, the illumination light guiding microstructure can be disposed in the illumination light emitting region 5, and the indicator light guiding microstructure having a higher density than the illumination light guiding microstructure can be disposed in the indicating light emitting region 6; however, indicating the light guiding microstructure and The illumination light guiding microstructure is adjusted by the density difference, so that the brightness of the escape indication pattern is not higher than 10% of the peripheral luminance when the illumination state is reached, and the escape indication pattern has a brightness not lower than the escape indication state. It has twice the brightness of its periphery; it has its difficulties. The proportion distribution may be adjusted according to the actual product size, thickness and material. Although it is not excessive experiment, it still loses the beauty of the invention.

Therefore, as shown in FIG. 10, the indication light-emitting area 6 can be recessed on the surface of the light guide plate 11, and the LED illumination light group 12 is realized by the white light LED 8 shown in FIG. 10, and the LED escape indicator light group 13 is as shown in FIG. The red LED 7 is implemented; Therefore, although the indication light-emitting area 6 has a strong ability to derive the light of the white light LED 8 because it indicates that the light guide microstructure density is large, the light received by the white light LED 8 is less due to the concave surface on the surface of the light guide plate 11; Therefore, the difference in luminance from the illumination light-emitting region 5 is easily adjusted to a desired value. It should be noted that, under this design concept, if only the white LED 8 is mounted on the side of the light guide plate 11, the illumination light-emitting area 5 on the high beam side is blocked by the concave indication light-emitting area 6, and is received. The white LED 8 will provide too little light, so it is preferable to configure the white LED 8 on at least two sides of the light guide plate 11. According to this concept, the red LED 7 for indication is disposed below the white LED 8 in position, so that the light that is dissipated to the illumination region 5 is less due to directivity, and the illumination light of the illumination region 5 is slightly The structural density is low, so that the expected value of the difference between the two luminances can be reached under the state of escape indication.

Referring to FIG. 11 and FIG. 11A again, FIG. 11 is a schematic structural view of a light guide plate 11 according to another embodiment, and FIG. 11A is a partially enlarged schematic view showing a region A of FIG. In Fig. 11, the light guide plate 11 can be designed with an interface 110 therein to divide the upper and lower sub-layers. Specific examples of the practice are as follows:

Method 1. The processing process of the light guide plate 11 can be easily made to a thickness of 1 mm, so that the two sub-layers can be stacked one on top of the other, leaving an air gap as the interface 110, and no air gap is desired. The place can be bonded with optical glue.

Method 2: As mentioned above, since the thickness of the escape indicating lighting fixture is usually about 1 cm, the interface 110 can also be directly cut by a cutter. Then, the sub-layer corresponding to the white LED 8 is laid with the illumination light guiding microstructure as the illumination light-emitting area 5; similarly, the sub-layer of the red LED 7 corresponding to the indication is laid to indicate the light-guiding microstructure as the indication light-emitting area 6 .

Further, in order to achieve the target of arranging the light source only on one side of the light guide plate 11, the illumination light guiding microstructure of the illumination light-emitting area 5 may be gradually changed in density so that the high beam side light is uniform to the low beam. side. It should be noted that the indicator light guiding microstructure indicating the light-emitting area 6 is correspondingly set to a deep gradation change pattern, and since the light path of the red light LED 7 to reach the light-emitting surface is long, the indication is guide The optical microstructure depth should be greater than the illumination light guiding microstructure.

Referring to FIG. 12, FIG. 12 is a schematic structural view of a light guide plate 11 according to still another embodiment. In Fig. 12, the design concept is substantially similar to that of Fig. 11; only the red LED 7 for indication needs to slightly adjust its light exit angle, and the directivity is used to emit light in the indicating light-emitting region 6 by secondary optics.

[Possible effects of embodiments of the present invention]

In summary, the escape indicator lighting fixture provided by the embodiment of the present invention can be matched with the LED lighting group and the LED escape indicator group of different functions through the micro-structure design of the light guide plate (or the escape indicator) to generate Different effects, in turn, integrate two types of lamps that are not compatible. That is, when the escape indication lighting fixture is in the illumination state, the brightness of the escape indication pattern is not higher than 10% of its peripheral brightness; when the escape indication lighting fixture is in the escape indication state, the brightness of the escape indication pattern is not lower than the brightness of the surrounding brightness. Times.

Moreover, the illumination range of the LED escape indicator group covers only the portion of the second light incident surface corresponding to the light guiding microstructure, so that the escape indicator lighting fixture can be more efficient when the commercial power source stops supplying power. The power consumption mode operates to achieve the effect of extending the operation time. The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent variations and modifications of the scope of the invention are intended to be within the scope of the invention.

100‧‧‧Escape indicator lighting

1‧‧‧Lighting module

11‧‧‧Light guide

12‧‧‧LED lighting group

13‧‧‧LED escape indicator set

2‧‧‧Rechargeable battery

3‧‧‧Transformers

4‧‧‧ Controller

200‧‧‧mains power supply

Claims (10)

An escape indicator illumination lamp includes: a light guide plate having at least one first light incident surface, at least one second light incident surface, and a light exiting surface, wherein the light guide plate is provided with a plurality of illumination light guiding microstructures and a plurality of indications a light guiding microstructure, wherein the light guiding capability of the light guiding microstructure is greater than a light guiding capability of the illumination light guiding microstructure, and the overall contour indicating the light guiding microstructure constitutes an escape indicating pattern, and the illumination light guiding micro The overall contour of the structure constitutes an illumination light-emitting area, the indicator light-guiding microstructures comprise a first block and a second block, the first block is arranged substantially along a first direction, and the second block is substantially along Arranging in a second direction, and the first direction and the second direction are formed with an acute angle; an LED illumination group facing the first light incident surface of the light guide plate, so that the LED illumination group emits The light can pass through the first light incident surface into the light guide plate, and the light exit surface passes through the light guide plate; and an LED escape indicator light group faces the second light incident surface of the light guide plate, Light the LED to escape the indicator light Passing through the second light incident surface into the light guide plate, and the light guide plate passes through the light guide plate, and the brightness of the LED escape indicator light group is smaller than the brightness of the LED illumination light group, the LED escape indicator group A first light group and a second light group are included, and the first light group is located on an extended path of the first block along the first direction, and the second light group is located along the second block The second direction extends on the path. The escape indicating illumination lamp of claim 1, wherein the light guiding capability of the indicating light guiding microstructure is greater than the light taking capability of the lighting light guiding microstructures because the lighting light guiding microstructures are A first density is arranged, and the indicator light guiding microstructures are arranged at a second density greater than the first density. The escape indicating illumination lamp of claim 1, wherein the light guiding capability of the indicating light guiding microstructure is greater than the light taking capability of the lighting light guiding microstructures because the lighting light guiding microstructures are Arranged at a first depth, and The indicator light guiding microstructures are arranged at a second depth greater than the first depth. The escape indicating lighting fixture of claim 1, wherein the indicating light guiding microstructures are formed on the light emitting surface of the light guiding plate. The escape indicator lighting fixture of claim 1, wherein the indicator light guiding microstructures comprise a third block, the third block is arranged substantially in a third direction, and the second block is The third block is mirror-symmetrical with respect to the first block, and the second block and the third block respectively intersect opposite sides of one end portion of the first block, and the LED escape indicator group further A third group of lamps is included, and the third group of lamps is located on an extended path of the third block along the third direction. The escape indicator lighting fixture of claim 5, wherein the first light group, the second light group, and the third light group each define a central optical axis, and the first The central optical axes of the light group, the second light group, and the third light group are parallel to the first direction, the second direction, and the third direction, respectively. The escape indicating lighting fixture of claim 1, wherein the indicating light guiding microstructures are formed on a bottom surface of the light guiding plate with respect to the light emitting surface. The escape indicating lighting fixture of claim 1, wherein the illumination light guiding microstructures are formed on the light emitting surface of the light guiding plate. The escape indicator illumination lamp of claim 1, wherein the second light incident surface is located below the first light incident surface, and the light guide plate has an interface formed on the top of the light guide plate. An interlayer between the bottom portion and a relative position between the first light incident surface and the second light incident surface, wherein the indicating light guiding microstructures form the escape indicating pattern in the interface in an intaglio manner, and the illumination light guides The microstructure forms the illumination illumination region in the interface in an intaglio manner. The escape indicating illumination lamp of claim 1, wherein the illumination light guiding microstructures are formed on a bottom surface of the light guiding plate with respect to the light emitting surface.