TWI460377B - Illumination apparatus - Google Patents

Description

Lighting device

This invention relates to a lighting device, and more particularly to a lighting device having a halo around it.

A light source module using a light-emitting element and a light-guiding element has been widely used in the field of illumination. Generally, the light provided by the illuminating element propagates after entering the light guiding element, and then the light is emitted from the light emitting surface of the light guiding element to form a desired illumination source.

In recent years, with the advancement of lighting technology, the above-mentioned light source module has been gradually applied to many lighting fixtures. Among various types of light-emitting elements, Light Emitting Diodes (LEDs) have become mainstream due to high brightness, low power consumption, and low pollution.

However, in the conventional lighting fixture, after the light from the light-emitting element enters the light-guiding element via the light-incident surface of the light-guiding element, the light is emitted from the light-emitting surface of the light-guiding element, and only a monotonous illumination effect can be provided. In other words, traditional lighting fixtures are not able to present a variety of lighting effects, which is not conducive to the development of lighting fixtures.

The present invention provides a lighting device having a illuminating function around the lighting device, thereby enabling a halo lighting effect.

The invention provides a lighting device comprising: a first light guiding body, at least one second light guiding body and a light strip. The first light guiding body has a first surrounding light incident surface, a first light emitting surface opposite to each other, and a first light reflecting surface. The first light emitting surface and the first light reflecting surface are adjacent to the first surrounding light incident surface. The second light guide body is disposed above the circumference of the first light guide body. The second light guide has a second surrounding light incident surface. The light strip provides a plurality of first beams. The first portion of the first beam enters the first light guide via the first surrounding light incident surface. The second portion of the first beam enters the second light guide via the second surrounding light incident surface.

The invention further provides a lighting device comprising: a first light guiding body, at least one second light guiding body and a light strip. The first light guiding body has a first surrounding light incident surface, a first light emitting surface facing each other and a first reflecting surface, and the first light emitting surface and the first light reflecting surface are adjacent to the first surrounding light incident surface. The second light guide body is disposed above the circumference of the first light guide body, and the second light guide body has a second surrounding light incident surface. The light strip provides a plurality of first beams and a plurality of second beams. The first light beam enters the first light guide via the first surrounding light incident surface. The second light beam enters the second light guide via the second surrounding light incident surface.

In an embodiment of the invention, the light strip includes a plurality of first light emitting units. The first light emitting unit provides a first light beam and is opposite to the first surrounding light incident surface.

In an embodiment of the invention, the first light emitting unit is selected from the group consisting of a front view LED, a side view LED, and a combination thereof.

In an embodiment of the invention, the second light guide body further includes: a buffer unit. The buffer unit is disposed between the second light guide and the first light guide and abuts the first light guide.

In an embodiment of the invention, the first light guide body further includes: a plurality of optical microstructures. The optical microstructure is disposed on the first reflective surface.

In an embodiment of the invention, the lighting device further includes: a reflective sheet. The reflective sheet is disposed opposite to the first reflective surface of the first light guide.

In an embodiment of the invention, the lighting device further includes: a diffusion sheet. The diffusion sheet is disposed opposite to the first light-emitting surface of the first light guide body.

In an embodiment of the invention, the first light guide body is a circular light guide plate, and the second light guide body is a circular light guide cover body.

In an embodiment of the invention, the first light guiding body is a polygonal light guiding plate, and the second light guiding body is a plurality of elongated light guiding cover bodies. The second light guide body is correspondingly disposed on each side of the polygonal light guide plate.

In an embodiment of the invention, the lighting device further includes: a bottom frame. The first light guide body and the light strip are sandwiched between the bottom frame and the second light guide body. The first light guide body is disposed on the bottom frame. The second light guide body is disposed above the circumference of the first light guide body. The light bar is disposed on one side of the second surrounding light incident surface.

In an embodiment of the invention, the light strip includes a plurality of first light emitting units and a plurality of second light emitting units. The first light emitting unit provides a first light beam and is opposite to the first surrounding light incident surface. The second light emitting unit provides a second light beam and is opposite to the second surrounding light incident surface.

Based on the above, the illumination device of the present invention employs a light strip, a first light guide, and a second light guide, and the second light guide is positioned above the circumference of the first light guide. The light beam provided by the light bar can enter the first light guide body and the second light guide body, respectively. In this way, the illumination device can use the first light guide to perform main illumination and the second light guide to achieve the halo effect of the surrounding illumination. Furthermore, the brightness intensity between the main light emission and the light emission can be controlled by the ratio of the light intensity of the first light beam and the second light beam, and a variety of illumination effects can be produced.

The above described features and advantages of the present invention will be more apparent from the following description.

[First Embodiment]

1A is a top plan view of a lighting device in accordance with a first embodiment of the present invention. Fig. 1B is a schematic cross-sectional view taken along line A-A' of Fig. 1A. 1C is a perspective side view of the circle E portion of FIG. 1B in a direction perpendicular to the paper surface, showing an example of the arrangement of the first light-emitting unit 132 of the light bar 130a.

Referring first to FIG. 1A and FIG. 1B , the illumination device 100 a includes a first light guide 110 , at least one second light guide 120 , and a light strip 130 a . The first light guide body 110 has a first surrounding light incident surface 112 , a first light exit surface 114 , and a first light reflecting surface 116 . The first light emitting surface 114 and the first light reflecting surface 116 are adjacent to the first surrounding light incident surface 112 . The second light guide body 120 is disposed above the periphery of the first light guide body 110 and has a second peripheral light incident surface 122 . The light bar 130a provides a plurality of first light beams L1. The first portion P1 of the first light beam L1 enters the first light guide body 110 via the first surrounding light incident surface 112, and the second portion P2 of the first light beam L1 enters the second light guide body via the second surrounding light incident surface 122. 120.

It should be noted that the second light guide body 120 is disposed above the "around" of the first light guide body 110. The meaning of "around" means that the second light guide body 120 is disposed as: the second light guide body 120 The edge of the second light guide body 120 is adjacent to the edge of the first light guide body 110 and moves to a distance within the first light guide body 110. In other words, as long as the second light guide body 120 is disposed above the first light guide body 110, and the second light guide body 120 is disposed around the edge of the first light guide body 110, or the second light guide body 120 is surrounded by A distance from the edge of the first light guide 110 is a meaning that the second light guide 120 is disposed above the "around" of the first light guide 110.

It should be noted that FIG. 1A only shows the first light guide body 110 and the second light guide body 120 to clearly show the relative positions of the first light guide body 110 and the second light guide body 120; and FIG. 1B and FIG. 1C understands the arrangement and arrangement of the first light emitting units 132 of the light strips 130a.

Referring to FIG. 1B and FIG. 1C , the light strip 130 a may include a plurality of first light emitting units 132 . The first light emitting unit 132 provides the first light beam L1 and is disposed opposite to the first surrounding light incident surface 112. In more detail, each of the first light emitting units 132 on the light strip 130a may be arranged in the same horizontal line and opposite to the first light guiding body 110. The first light emitting unit 132 is, for example, a front view LED, a side view LED, and a combination thereof, and can emit a first light beam L1 having different light emitting paths. Part P1 and a second portion P2 of the first beam L2.

In the above, the first portion P1 of the first light beam L1 can enter the first light guide body 110, and the second portion P2 of the first light beam L1 can enter the second light guide body 120. In this way, the first light guide 110 can provide primary illumination, and the second light guide 120 can provide a halo illumination effect. It can be noted that by adjusting the luminance ratio between the first portion P1 of the first light beam L1 and the second portion P2 of the first light beam L1, a variety of illumination effects can be produced.

For example, if the luminance of the first portion P1 of the first light beam L1 is greater than the luminance of the second portion P1 of the first light beam L1, the main illumination (provided by the first light guide body 110) and the main illumination can be provided in the illumination device 100a. A weak halo (provided by the second light guide 120).

Further, by making the luminance of the first portion P1 of the first light beam L1 smaller than the luminance of the second portion P1 of the first light beam L1, the illumination device 100a can provide weak illumination (provided by the first light guide 110) and the periphery of the weak illumination. Bright halo (provided by the second light guide 120).

Moreover, the luminance of the first portion P1 of the first light beam L1 may be equal to the luminance of the second portion P1 of the first light beam L1, and the illumination device 100a may provide the main illumination having substantially the same luminance (provided by the first light guide 110) And the halo around the main illumination (provided by the second light guide 120).

Referring to FIG. 1B , the second light guide body 120 further includes a buffer unit S disposed between the second light guide body 120 and the first light guide body 110 and abutting against the first light guide body 110 . The buffer unit S is made of, for example, an elastic material. When the second light guide body 120 is coupled to the first light guide body 110, the second light guide body 120 can be pressed against the lower first light guide body 110, and When the buffering effect is achieved, the second light guide body 120 can be prevented from directly contacting the first light guide body 110 to be damaged by friction.

Referring to FIG. 1A , the first light guide body 110 may be a circular light guide plate, and the second light guide body 120 may be a circular light guide cover body. When the second light guide body 120 is placed above the circumference of the first light guide body 110, the first light guide body 110 may generate In the circular illumination area, the second light guide body 120 can generate an annular halo. However, the shapes of the first light guide body 110 and the second light guide body 120 are not limited to the above-described circular shape, and the shape can be selected in accordance with a desired illumination optical effect.

Referring to FIG. 1B again, the first light guide 110 may include a plurality of optical microstructures T disposed on the first reflective surface 116. The optical microstructure T helps to reflect light to the first light exit surface 114 to increase the light exit rate.

In addition, the illumination device 100a may further include: a reflective sheet 140 disposed opposite to the first reflective surface 116 of the first light guide 110. The reflective sheet 140 can be made of a material having high light reflectivity (such as metal, white reflective paint, etc.), and helps to reflect the light emitted from the first reflective surface 116 back into the first light guide 110 to improve the light emission rate. .

In addition, the illuminating device 100a may further include: a diffusion sheet 150 disposed to face the first light-emitting surface 114 of the first light-guide body 110 to facilitate diffusion of light emitted from the first light-emitting surface 114, and The first light-emitting surface 114 is provided with the effect of uniform light emission.

In addition, the illuminating device 100a may further include a bottom frame 160. The first light guiding body 110 and the light bar 130a are disposed between the bottom frame 160 and the second light guiding body 120, and the first light guiding body 110 is disposed on the bottom frame 160. The second light guide body 120 is disposed above the circumference of the first light guide body 110, and the light strip 130a is disposed on a side of the second surrounding light incident surface 122. The first light guide 110, the second light guide 120, and the light strip 130a can be assembled by the bottom frame 160 to form the illumination device 100a.

In summary, in the illumination device 100a, the first portion P1 of the first light beam L1 and the second portion P2 of the first light beam L1 are provided by the light strip 130a, and the first portion of the first light beam L1 is used. The portion P1 is incident on the first light guide 110, and the second portion P2 of the first beam L1 is incident on the second light guide 120. In this way, the illumination device 100a can adjust the luminance ratio of the first light guide body 110 and the second light guide body 120 according to the environmental atmosphere requirement, and can generate a diversified illumination effect with a halo.

In the illumination device 100a, the second light guide body 120 is disposed above the periphery of the first light guide body 110 and disposed around the edge of the first light guide body 110. However, the invention is not limited thereto, and other embodiments will be enumerated below for illustration. The following embodiments are used to designate the same or similar elements, and the description of the same technical content is omitted.

[Second embodiment]

2A is a top plan view of a lighting device in accordance with a second embodiment of the present invention. Fig. 2B is a schematic cross-sectional view taken along line B-B' of Fig. 2A. It should be noted that FIG. 2A only shows the first light guide body 110 and the second light guide body 120 to clearly show the relative positions of the first light guide body 110 and the second light guide body 120.

2A and 2B, the illumination device 100b is substantially similar to the illumination device 100a shown in FIGS. 1A and 1B, except that in the illumination device 100b, the second light guide 120 is disposed at the first light guide. The periphery of the body 110 and the edge of the second light guide body 120 are separated from the edge of the first light guide body 110 by a distance D from the first light guide body 110, which is different from that shown in FIG. 1A and FIG. 1B. The second light guide body 120 is disposed in close proximity to the edge of the first light guide body 110.

In the embodiment of FIGS. 2A and 2B, similar to the description of FIG. 1B and FIG. 1C, the plurality of first light emitting units 132 of the light strip 130a may provide the first light beam L1, and the first portion P1 of the first light beam L1 is transmitted to the first A light guide body 110 causes the first light guide body 110 to emit light; the second portion P2 of the first light beam L1 is transmitted to the second light guide body 120, so that the second light guide body 120 emits light.

Similarly, the illumination device 100b can also adjust the luminance ratio of the first light guide body 110 and the second light guide body 120 according to the environmental atmosphere requirement, and can generate a diversified illumination effect with a halo.

[Third embodiment]

3 is a top plan view of a lighting device in accordance with a third embodiment of the present invention. Referring to FIG. 3, the illumination device 100c is similar to the illumination device 100a of FIG. 1, and only a top view of the illumination device 100c is shown.

The illuminating device 100c is different from the illuminating device 100a in that the first light guiding body 110 of the illuminating device 100c is a polygonal light guiding plate (shown as a rectangle in FIG. 3), and the second light guiding body 120 is a plurality of elongated guides. The light covers 120A to 120D are correspondingly provided on each side of the polygonal light guide plate (first light guide 110). It may be noted that the edge of the second light guiding body 120 is adjacent to the edge of the first light guiding body 110.

3 is a rectangular first light guide body 110; however, the first light guide body 110 may be any polygonal shape such as a pentagon, a hexagon, an octagon, etc., and the second light guide 120 may be A plurality of elongated light guiding covers are respectively disposed on each side of the first light guiding body 110; and the second light guiding body 120 is disposed above the periphery of the first light guiding body 100. In addition to forming the second light guide body 120 by using a plurality of elongated light guide covers, the second light guide body 120 can also be formed into a polygonal frame.

Furthermore, the second light guide body 120 further includes a buffer unit (not shown) disposed between the second light guide body 120 and the first light guide body 110 and abutting the first light guide body 110. A buffer unit made of an elastic material may be disposed on a side of each of the elongated light guiding covers contacting the first light guiding body 110.

Similarly, when the first light guide body 110 and the second light guide body 120 emit light, the illumination device 100c has the effect of surrounding light emission, and the light-emitting effect of the polygonal halo can be generated. Further, by adjusting the luminance ratio of the first light guide 110 and the second light guide 120, the illumination device 100c can be made to have various illumination effects.

[Fourth embodiment]

4 is a top plan view of a lighting device in accordance with a fourth embodiment of the present invention. Referring to FIG. 4, the illumination device 100d is similar to the illumination device 100b of FIG. 2, and only a top view of the illumination device 100d is shown.

The illumination device 100d is different from the illumination device 100b in that the first light guide 110 of the illumination device 100d is a polygonal light guide plate, and the second light guide body 120 is a plurality of elongated light guide covers 120A to 120D, corresponding to It is disposed on each side of the polygonal light guide plate (first light guide body 110). The second light guide body 120 is disposed above the circumference of the first light guide body 100 and at a distance D from the peripheral edge of the first light guide body 110.

4 is a rectangular first light guide body 110; however, the first light guide body 110 may be any polygonal shape such as a pentagon, a hexagon, an octagon, etc., and the second light guide 120 may be A plurality of elongated light guiding covers are respectively disposed on each side of the first light guiding body 110.

Similarly, when the first light guide body 110 and the second light guide body 120 emit light, the illumination device 100d has an effect of surrounding light emission, and a light-emitting effect of a polygonal halo can be generated. Further, by adjusting the luminance ratio of the first light guide 110 and the second light guide 120, the illumination device 100d can be made to have various illumination effects.

[Fifth Embodiment]

Fig. 5A is a top plan view of a lighting device in accordance with a fifth embodiment of the present invention. Fig. 5B is a schematic cross-sectional view taken along line C-C' of Fig. 5A. 5C is a perspective side view of the circle E portion of FIG. 5B in a direction perpendicular to the paper surface, showing an example of the arrangement of the first light-emitting unit 132 and the second light-emitting unit 134 of the light bar 130b.

Referring to FIGS. 5A and 5B , the illumination device 100e includes a first light guide 110 , at least one second light guide 120 , and a light strip 130 b . The first light guide body 110 has a first peripheral light incident surface 112, a first light exit surface 114 and a first light reflecting surface 116 opposite to each other, and the first light emitting surface 114 and the first light reflecting surface 116 are adjacent to the first surrounding light incident surface. 112. The second light guide body 120 is disposed above the circumference of the first light guide body 110 , and the second light guide body 120 has a second surrounding light incident surface 122 . The light bar 130b provides a plurality of first light beams L1 and a plurality of second light beams L2, wherein the first light beam L1 enters the first light guide body 110 via the first surrounding light incident surface 112, and the second light beam L2 is via the second light beam L2 The light incident surface 122 is incident on the second light guide body 120.

Referring to FIG. 5A and FIG. 5B, the illumination device 100e is similar to the illumination device 100a of FIGS. 1A and 1B except that the illumination device 100e uses the light bar 130b having the first illumination unit 132 and the second illumination unit 134. Come as a source of light.

As shown in FIG. 5C, the light bar 130b includes a plurality of first light emitting units 132 and a plurality of second light emitting units 134. The first light emitting unit 132 is opposite to the first surrounding light incident surface 112 and provides the first light beam L1; and the second light emitting unit 134 is opposite to the second surrounding light incident surface 122 and provides the second light beam L2. The plurality of first light emitting units 132 on the light strip 130b are arranged on the first horizontal line, and the plurality of second light emitting units 134 are arranged on the second horizontal line; and the first light emitting unit 132 is opposite to the first light guiding body 110, The second light emitting unit 134 is opposite to the second light guide 120.

Furthermore, the first light emitting unit 132 and the second light emitting unit 134 are, for example, a top view LED, a side view LED, and combinations thereof.

In this way, the light intensities of the first light beam L1 and the second light beam L2 can be adjusted by independently controlling the first light emitting unit 132 and the second light emitting unit 134, respectively, to generate a variety of lighting effects.

For example, the first light emitting unit 132 can be turned on separately, and the second light emitting unit 134 can be turned off. Thus, the first light guiding body 110 can be mainly illuminated, and the second light guiding body 120 can not provide a halo lighting effect.

Moreover, the second light emitting unit 134 can be turned on separately, and the first light emitting unit 132 can be turned off. Thus, the second light guiding body 120 can be provided with a halo lighting effect, and the first light guiding body 110 does not perform main illumination.

Furthermore, as shown in the first embodiment of FIG. 1A and FIG. 1B, the first light emitting unit 132 and the second light emitting unit 134 are simultaneously turned on, but the first light emitting unit 132 and the second light emitting unit 134 are regulated. The luminance ratio can provide both primary illumination (first light guide 110) and halo illumination (second light guide 120), but each having a different luminance. In other words, the lighting device 100e can provide more lighting effects.

In other embodiments not shown, the illumination device 100b, 100c, 100d may also use the light strip 130b as a source of illumination to form illumination devices of various shapes.

As for the other elements of the illumination device 100e (the optical microstructure T, the reflection sheet 140, the diffusion sheet 150, the buffer unit S, and the like), they are similar to those described in the first embodiment of FIGS. 1A to 1C, and are not heavy here. Said.

In summary, the illuminating device of the present invention has at least the following advantages: providing a light strip, a first light guide body and a second light guide body, wherein the second light guide body is a cover body and is located at the first light guide body Above the surroundings. The light strip provides a light beam respectively entering the first light guide body and the second light guide body, wherein the light intensity of the first light guide body and the second light guide body may be different, so that the illumination device of the invention may have ambient illumination The effect is to achieve a visual effect with a halo. In addition, the intensity of the halo can be adjusted by the ratio of the light intensity of the first light guide and the second light guide.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100a, 100b, 100c, 100d, 100e‧‧‧ lighting devices

110‧‧‧First Light Guide

112‧‧‧The first surrounding light surface

114‧‧‧The first glazing

116‧‧‧First reflective surface

120‧‧‧Second light guide

122‧‧‧Second surrounding light surface

130a, 130b‧‧‧Light strips

132‧‧‧First lighting unit

134‧‧‧second lighting unit

140‧‧‧reflector

150‧‧‧Diffuser

160‧‧‧ bottom frame

A-A’, B-B’, C-C’‧‧‧

D‧‧‧Distance

E‧‧‧ circle part

L1‧‧‧first beam

L2‧‧‧second beam

P1‧‧‧Part 1

P2‧‧‧ Part II

S‧‧‧ buffer unit

T‧‧‧ optical microstructure

1A is a top plan view of a lighting device according to a first embodiment of the present invention.

Fig. 1B is a schematic cross-sectional view taken along line A-A' of Fig. 1A.

Figure 1C is a perspective side view of the portion of circle E of Figure 1B in a direction perpendicular to the plane of the paper.

2A is a top plan view of a lighting device according to a second embodiment of the present invention.

Fig. 2B is a schematic cross-sectional view taken along line B-B' of Fig. 2A.

3 is a top plan view of a lighting device according to a third embodiment of the present invention.

4 is a top plan view of a lighting device according to a fourth embodiment of the present invention.

Fig. 5A is a top plan view showing a lighting device according to a fifth embodiment of the present invention.

Fig. 5B is a schematic cross-sectional view taken along line C-C' of Fig. 5A.

Figure 5C is a perspective side view of the portion of circle E of Figure 5B in a direction perpendicular to the plane of the paper.

110. . . First light guide

112. . . First surrounding light surface

114. . . First illuminating surface

116. . . First reflective surface

120. . . Second light guide

122. . . Second surrounding light surface

130a. . . Light bar

132. . . First lighting unit

140. . . A reflective sheet

150. . . Diffusion sheet

160. . . Bottom frame

L1. . . First beam

P1. . . first part

P2. . . the second part

S. . . Buffer unit

T. . . Optical microstructure

A-A’. . . Section line

Claims (18)

A lighting device includes: a first light guiding body having a first surrounding light incident surface, a first light emitting surface opposite to each other and a first reflecting surface, wherein the first light emitting surface is adjacent to the first light reflecting surface The first surrounding light incident surface; at least one second light guide body disposed above the first light guide body, the second light guide body having a second peripheral light incident surface and a buffer unit, the buffer The unit is disposed between the second light guide body and the first light guide body and abuts the first light guide body; and a light strip provides a plurality of first light beams, wherein the first light beams are A portion enters the first light guide through the first surrounding light incident surface, and the second portion of the first light beams enters the second light guide through the second surrounding light incident surface. The illuminating device of claim 1, wherein the light strip comprises: a plurality of first light emitting units, the first light emitting units provide the first light beams, and the first light emitting units are opposite The first surrounding light enters the surface. The illuminating device according to claim 2, wherein the first illuminating units are selected from the group consisting of a positive light type light emitting diode, a side light type light emitting diode, and a combination thereof. The illuminating device of claim 1, wherein the first light guiding body further comprises: a plurality of optical microstructures disposed on the first reflecting surface. The lighting device of claim 1, further comprising: A reflective sheet is disposed to face the first reflective surface of the first light guide. The illuminating device of claim 1, further comprising: a diffusion sheet disposed to face the first light-emitting surface of the first light guide body. The illuminating device according to claim 1, wherein the first light guiding body is a circular light guiding plate, and the second light guiding body is a circular light guiding cover. The illuminating device of claim 1, wherein the first light guiding body is a polygonal light guiding plate, and the second light guiding body is a plurality of elongated light guiding cover bodies, correspondingly disposed on the polygonal guiding body Each side of the light board. The illuminating device of claim 1, further comprising: a bottom frame, wherein the first light guiding body and the light bar are sandwiched between the bottom frame and the second light guiding body, wherein The first light guide body is disposed on the bottom frame; the second light guide body is disposed above the first light guide body; and the light strip is disposed on a side of the second surrounding light incident surface. A lighting device includes: a first light guiding body having a first surrounding light incident surface, a first light emitting surface opposite to each other and a first reflecting surface, wherein the first light emitting surface is adjacent to the first light reflecting surface The first surrounding light incident surface; at least one second light guide body disposed above the first light guide body, the second light guide body having a second peripheral light incident surface and a buffer unit, the buffer The unit is disposed between the second light guide body and the first light guide body, and abuts the first light guide body; a light strip providing a plurality of first light beams and a plurality of second light beams, wherein the first light beams enter the first light guide through the first surrounding light incident surface, and the second light beams are The second surrounding light incident surface enters the second light guiding body. The illuminating device of claim 10, wherein the light strip comprises: a plurality of first light emitting units, the first light emitting units provide the first light beams, and the first light emitting units are opposite a first surrounding light incident surface; and a plurality of second light emitting units, wherein the second light emitting units provide the second light beams, and the second light emitting units are opposite to the second surrounding light incident surface. The illuminating device of claim 11, wherein the first illuminating unit and the second illuminating unit are selected from the group consisting of: a positive light emitting diode, an edge light emitting diode, and combinations thereof. . The illuminating device of claim 10, wherein the first light guiding body further comprises: a plurality of optical microstructures disposed on the first reflecting surface. The illuminating device of claim 10, further comprising: a reflective sheet disposed to face the first reflecting surface of the first light guiding body. The illuminating device of claim 10, further comprising: a diffusion sheet disposed to face the first light-emitting surface of the first light guide body. The lighting device of claim 10, wherein The first light guide body is a circular light guide plate, and the second light guide body is a circular light guide cover body. The illuminating device of claim 10, wherein the first light guiding body is a polygonal light guiding plate, and the second light guiding body is a plurality of elongated light guiding covers, correspondingly disposed on the polygonal guide Each side of the light board. The illuminating device of claim 10, further comprising: a bottom frame, wherein the first light guiding body and the light bar are sandwiched between the bottom frame and the second light guiding body, wherein The first light guide body is disposed on the bottom frame; the second light guide body is disposed above the first light guide body; and the light strip is disposed on a side of the second surrounding light incident surface.