CN101761872B - Combined light guide module with high-efficiency light guide function - Google Patents

Abstract

A combined light guide module with a light guide function is composed of a plurality of light guide structures, wherein each light guide structure comprises: a light guide body unit and a light reflecting microstructure unit. The light guide body unit is provided with a light guide part, at least one inner concave light part formed at one side end of the light guide part, and an accommodating part formed on a combined surface of the light guide part. The light reflecting microstructure unit is provided with a plurality of light reflecting microstructures which are respectively arranged in the accommodating part. Therefore, the light guide structures are mutually matched together, so that the light guide parts are combined into a light guide rod, the inwards concave light parts are combined into a light inlet groove positioned on one side end face of the light guide rod, and the accommodating parts are combined into a light reflecting microstructure accommodating space hidden in the light guide rod.

Description

Combined light guide module with high-efficiency light guide function

technical field

The invention relates to a light guide module, in particular to a combined light guide module with a high-efficiency light guide function.

Background technique

The design of the known Light Guide or Light Pipe usually includes the following related considerations:

1. Light entrance face:

When light is irradiated from a low-density transparent substance to a high-density transparent substance, reflected light and refracted light will be generated at the same time, and the sum of the energy of the reflected light and the refracted light is equal to the energy of the incident light. As shown in FIG. 1A and FIG. 1B , when the traveling direction of the light is perpendicular to the incident surface, the reflection ratio of the light rays ( L10 , L20 ) is the lowest.

As shown in FIG. 1A , the light-incident end surface S1 of a conventional light guide rod is mostly flat (as shown in FIG. 1A ) due to the limitation of mold manufacturing cost. Therefore, most of the energy of the light L11 with a relatively large incident angle cannot enter the light guide rod P1.

As shown in Figure 1B, if the light incident end surface S2 of the light guide rod P2 can be changed to a concave hemispherical surface, most of the energy of the light L21 will enter the light guide rod P2. But the mold making cost will obviously increase.

2. Light exit end face:

When light is irradiated from a high-density transparent substance to a low-density transparent substance, reflected light and refracted light will also be generated at the same time. However, when the angle between the traveling direction of the light and the outgoing surface is smaller than the critical value, total reflection will be formed, that is, the light will not overflow the light guide. (Take acrylic material to air as an example: the critical value angle is about 42.2 degrees).

As shown in FIG. 1C , the light emitting end surface S3 of the traditional light guide rod P3 is also usually flat due to the limitation of mold manufacturing cost. Since the exit end surface S3 is usually far away from the light source, the angle between the traveling direction of the light and the exit end surface S3 will not be too small, and most of the light L3 will leave the light guide rod P3.

As shown in FIG. 1D , if the light emitting end surface S4 of the light guide rod P4 can be changed into a concave hemispherical surface, a part of the light L4 will form a total reflection phenomenon, so the light L4 will not completely overflow the light guide rod P4. But the mold making cost will obviously increase.

3. Light translucent member:

The body of the light guide rod is generally a transparent substance with high density and smooth appearance. Once the light enters the light guide rod, unless the direction of travel is greatly changed (for example: the direction of light travel is changed due to small concave or convex points), the light will form multiple total reflections in the light guide rod , until the end face of the light guide rod, depending on the relative angle to the end face, the total reflection continues or overflows the end face.

Four, reflective microstructure (light reflecting or diffusing structure):

In order to allow the light to overflow at the appropriate position in the light guide rod, it is necessary to use the design of the microstructure to change the direction of the light so that it no longer forms a total reflection phenomenon. The reflective microstructure C5 of the traditional light guide rod is continuous zigzag (as shown in FIG. 1E ). When the light travels in the light guide rod, once it hits the sawtooth surface, it will change the direction of travel at a large angle, and thus overflow the light guide rod to achieve the purpose of emitting light. However, the continuous zigzag microstructure will cause most of the light to overflow at the incident end face of the light guide rod, so it is difficult to uniformly control the energy of the overflowing light.

In order to improve the uniform control of the energy of the spilled light, the method is to reduce the number of saw teeth in the microstructure (as shown in FIG. 1F and FIG. 1G ) and distribute them properly. Among them, considering the cost of mold making, the microstructure C6 in FIG. 1F is much easier to manufacture than the microstructure C7 in FIG. 1G because of the concave design on the mold.

In addition, the incident light at the same angle is observed from the incident end face:

Comparing FIG. 1E and FIG. 1F , the light rays L51 , L52 and L61 , L2 all pass through the serrations of the microstructures C5 , C6 to change the traveling direction and overflow the light guide rods P5 , P6 . The light L53 also passes through the sawtooth of the microstructure C5 to change the traveling direction, and overflows the light guide rod P5 between L51 and L52. However, the light L63 continues to travel inside the light guide rod P6 in the form of total reflection, and will not overflow the light guide rod P6 immediately.

Comparing Figure 1E and Figure 1G, light rays L71, L72 or L74 are farther away from the incident end face than light rays L51, L52 or L54, and are changed by the sawtooth of the microstructures C7 and C5, and overflow the light guide rods P7 and P5 . The light L75 continues to travel in the light guide rod P7 in the form of total reflection, and will not overflow the light guide rod P7 immediately. But the light L55 is changed by the sawtooth of the microstructure C5 before L54 and overflows the light guide rod P5.

Comparing Figure 1F and Figure 1G, under the same number of sawtooth microstructures, the sawtooth of the microstructure C6 in Figure 1F, because it is located outside the total reflection surface, the effective reflection area of the sawtooth microstructure C6 will be smaller than that of the sawtooth in Figure 1G The effective reflective area of structure C7 is small. Therefore, the microstructure C7 in FIG. 1G can have a better light spill effect, but the mold cost is relatively high.

5. The light exit face that reflects the light:

The light emitting surface design of the light guide rod body usually has a smooth appearance unless there are special requirements. As long as the angle between the light that is changed by the reflected microstructure and the exit surface is greater than a critical value, the light will overflow the light guide rod immediately. Usually, the position of the light emitting surface is opposite to the position of the reflective surface, correspondingly located on the other side of the light guide rod body. Sometimes in order to fine-tune the light output energy or the light output angle, the light output surface design of the light guide rod body is also processed with light output microstructures (such as small lenses) or coatings.

Therefore, it can be seen from the above that the above-mentioned known light guide rods obviously have inconvenience and defects in actual use. Therefore, the inventor feels that the above-mentioned defects can be improved, and based on years of relevant experience in this field, carefully observes and studies, and cooperates with the application of theories, he proposes an invention with reasonable design and effective improvement of the above-mentioned defects.

Contents of the invention

The technical problem to be solved by the present invention is to provide a combined light guide module with a high-efficiency light guide function. The present invention can flexibly combine light guide bodies with different reflective microstructure designs according to different light guide requirements of each specified application (such as different light output angles, energy magnitudes and directions of light output), and easily meet customized requirements. . In other words, the combined light guide module of the present invention is composed of a plurality of mutually symmetrical light guide structures, and these light guide structures may "all have a plurality of hidden reflective microstructures" or "partially have a plurality of hidden reflective microstructures" ". Therefore, the present invention can greatly reduce the required mold cost, and the combined design of the present invention has high flexibility, so it can better meet the requirements of customization.

In order to solve the above technical problems, according to one solution of the present invention, a combined light guide module with high-efficiency light guide function is provided, which is composed of a plurality of light guide structures, wherein each light guide structure includes: a A light guide body unit and a reflective microstructure unit. Wherein, the light guide body unit has a light guide part, at least one concave light part formed on one side end of the light guide part, and a receiving part formed on the combined surface of the light guide part. The reflective microstructure unit has a plurality of reflective microstructures respectively arranged in the accommodating part. Thereby, the light guiding structures are matched together so that the light guiding parts are combined into a light guiding rod, and the concave light parts are combined into a light incident groove on one end surface of the light guiding rod , and the accommodating parts are combined into an accommodating space hidden in the light guide rod.

In order to solve the above technical problems, according to one solution of the present invention, a combined light guide module with high-efficiency light guide function is provided, which includes: at least one first light guide structure and at least one second light guide structure. Wherein, the at least one first light guide structure includes: a first light guide body unit and a reflective microstructure unit. In addition, the first light guide body unit has a first light guide part, at least one first inner concave light part formed on one side end of the first light guide part, and a first light guide part formed on the first light guide part. The first accommodating part on the combination surface of the part. The reflective microstructure unit has a plurality of reflective microstructures respectively arranged in the first accommodating portion. Moreover, the at least one second light guide structure includes: a second light guide body unit, which has a second light guide part, at least one second second concave formed on one side end of the second light guide part The light incident part and a second accommodating part formed on the combined surface of the second light guide part. Thereby, the at least one first light guide structure and the at least one second light guide structure are combined together, so that the first light guide part and the second light guide part are combined into a light guide rod, so that the The first inner concave light part and the second inner concave light part are combined into a light incident groove located on one end surface of the light guide rod, and the first accommodating part and the second accommodating part are combined into one The accommodating space hidden in the light guide rod.

In order to solve the above technical problems, according to one solution of the present invention, a combined light guide module with light guide function is provided, which is composed of a plurality of first light guide structures and a plurality of second light guide structures, wherein: Each first light guide structure includes: a first light guide body unit and a reflective microstructure unit. The first light guide body unit has a first light guide part, at least one first concave light part formed on one side end of the first light guide part, and a first light guide part formed on the first light guide part The first accommodating portion on the combined surface. The reflective microstructure unit has a plurality of reflective microstructures respectively arranged in the first accommodating portion. Furthermore, each second light guide structure includes: a second light guide body unit, which has a second light guide part, at least one second second inner recess formed at one side end of the second light guide part The light part, and a second accommodating part formed on the combined surface of the second light guide part. Thereby, the first light guide structures and the second light guide structures are combined together, so that the first light guide parts and the second light guide parts are combined into a light guide rod, so that the first light guide parts An inner concave light part and the second inner concave light parts are combined into a light incident groove located on one end surface of the light guide rod, and make the first receiving parts and the second receiving parts Combined into an accommodating space hidden in the light guide rod.

In order to further understand the technology, means and effects that the present invention adopts to achieve the predetermined purpose, please refer to the following detailed description and accompanying drawings of the present invention. It is believed that the purpose, characteristics and characteristics of the present invention can be obtained from this For specific understanding, however, the accompanying drawings are only for reference and illustration, and are not intended to limit the present invention.

Description of drawings

FIG. 1A is a schematic diagram of the first known light guide rod;

FIG. 1B is a schematic diagram of a second known light guide rod;

Fig. 1C is a schematic diagram of a third known light guide rod;

FIG. 1D is a schematic diagram of a fourth known light guide rod;

FIG. 1E is a schematic diagram of a fifth known light guide rod;

FIG. 1F is a schematic diagram of a sixth known light guide rod;

FIG. 1G is a schematic diagram of a seventh known light guide rod;

2A is a side view of the first embodiment of the light guide structure of the combined light guide module with high-efficiency light guide function of the present invention;

Fig. 2B is a three-dimensional exploded view of the first embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

2C is a three-dimensional combined view of the first embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

Figure 2D is a 2D-2D sectional view of Figure 2C;

Fig. 2E is a partial enlarged view of 2E of Fig. 2D;

3 is a partially enlarged view of the second embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

4 is a three-dimensional combined view of the third embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

5 is a three-dimensional combined view of the fourth embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

FIG. 6A is a three-dimensional exploded view of the fifth embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

6B is a three-dimensional combined view of the fifth embodiment of the combined light guide module with high-efficiency light guide function of the present invention;

Fig. 6C is a sectional view of 6C-6C of Fig. 6B;

Fig. 6D is a 6D partial enlarged view of Fig. 6C; and

7 is a three-dimensional assembled view of the sixth embodiment of the combined light guide module with high-efficiency light guide function of the present invention.

[Description of reference signs of main components]

[The first kind of public knowledge]

Light guide rod P1

Incident end face S1

Light L10, L11

[Second public knowledge]

Light guide rod P2

Incident end face S2

Light L20, L21

[The third kind of public knowledge]

Light guide rod P3

Exit end face S3

Light L3

[The fourth type of public knowledge]

Light guide rod P4

Exit end face S4

Light L4

[Fifth public knowledge]

Light guide rod P5

Microstructure C5

Light L51～L55

[Sixth public knowledge]

Light guide rod P6

Microstructure C6

Light L61～L63

[Seventh public knowledge]

Light guide rod P7

Microstructure C7

Light L71, L72, L74, L75

[this invention]

(first embodiment)

Light guide structure A

Light guide body unit 1a Light guide part 10a

Side face 100a

Side face 101a

Combination surface 102a

Light-emitting surface 103a

Inner concave light part 11a

Accommodating part 12a

Outward convex light incident part 13a

Reflective Microstructure Unit 2a Reflective Microstructure 20a

Light guide rod La

Light entrance groove Ca

Accommodating space Ra

Light incident bump Ba

Beam L1a, L2a

(second embodiment)

Reflective Microstructure 20b

Light entrance groove Cb

Light incident bump Bb

(third embodiment)

Light emitting surface 103c

(fourth embodiment)

Light guide structure D

Light guide part 1d side end face 100d

Side face 101d

Combination surface 102d

Light emitting surface 103d

Inner concave light incident part 11d

(fifth embodiment)

The first light guide structure E

The first light guide body unit 1e The first light guide part 10e

First side end face 100e

First side end face 101e

The first set of noodles 102e

The first light emitting surface 103e

The first concave light-receiving part 11e

The first storage unit 12e

The first convex light incident part 13e

The second light guide structure E ′

The second light guide body unit 1e′ The second light guide part 10e′

Second side end face 100e′

Second side end face 101e′

The second combined surface 102e′

The second light-emitting surface 103e′

The second concave light-receiving part 11e'

The second storage part 12e′

The second convex light incident part 13e'

Reflective Microstructure Unit 2e Reflective Microstructure 20e

Light guide rod Le

Light entrance groove Ce

Accommodating space Re

Light incident bump Be

Beam L1e

(sixth embodiment)

The first light guide structure F

Second light guide structure F′ light exit surface 103f′

Detailed ways

Please refer to FIG. 2A to FIG. 2E , which are the side view of the first embodiment of the light guide structure of the combined light guide module with high-efficiency light guide function of the present invention, and the combination of the present invention with high-efficiency light guide function. The three-dimensional exploded view of the first embodiment of the type light guide module, the three-dimensional combination view of the first embodiment of the combined light guide module with high-efficiency light guide function of the present invention, the 2D-2D sectional view of FIG. 2C, and FIG. 2D 2E partial enlarged view. It can be seen from the above figures that the first embodiment of the present invention provides a combined light guide module with high-efficiency light guide function, which is composed of two light guide structures A.

Each light guide structure A includes: a light guide body unit 1a and a light reflective microstructure unit 2a. The light guide body unit 1a has a light guide portion 10a, two indented light portions 11a respectively formed on two opposite side ends of the light guide portion 10a, and a housing formed on a plane of the light guide portion 10a. part 12a, and two outwardly protruding light-incoming parts 13a respectively formed on opposite ends of the accommodating part 12a. In addition, since each light guide structure A has exactly the same shape, each light guide structure A can be made using the same mold, so the present invention can greatly reduce the cost of the mold.

According to different design requirements, each light guide structure A can also only use: an inner concave light part 11a formed on one side end of the light guide part 10a and a concave light part 11a formed on one side of the accommodating part 12a The outer convex light incident part 13a of the end. Therefore, the quantity and designed positions of the inner concave light incident portion 11a and the outer convex light incident portion 13a of the present invention can be adjusted according to different usage requirements.

In addition, each light guide part 10a has two side end surfaces (100a, 101a), a combination surface 102a located between the two side end surfaces (100a, 101a), and a combination surface 102a located between the above two side end surfaces (100a, 101a). ) and corresponding to the light-emitting surface 103a of the combined surface 102a. One of the inner concave light portions 11a is formed between one end surface 100a and the combining surface 102a, and the other inner concave light portion 11a is formed between one of the end surfaces 101a and the combining surface 102a. The accommodating portion 12a is formed on the combination surface 102a, that is, the accommodating portion 12a is recessed downward from the combination surface 102a to form a concave reflection plane, and the reflection plane can vary with different light uniformity and brightness. According to the needs of different shapes. In addition, the light-emitting surface 103a can be an arc surface or a polygonal plane. According to the first embodiment, the light-emitting surface 103a is an arc surface. Therefore, when a light beam (not shown in the figure) passes through the light-emitting surface 103a and is projected, the light beam passes through the arc-shaped surface of the light-emitting surface 103a to produce a light-condensing effect.

Furthermore, the reflective microstructure unit 2a has a plurality of reflective microstructures 20a, wherein the shape of each reflective microstructure 20a can be hemispherical, cylindrical, triangular prism or zigzag, and according to the first embodiment, each A reflective microstructure 20a is in the shape of a hemisphere.

Please refer to FIG. 2B to FIG. 2D , because the above two light guide structures A are assembled together through the cooperation of the combination surfaces 102a, so that the above two light guide parts 10a are combined into a light guide rod La, so that The above-mentioned four inner concave light-incoming parts 11a are combined into two light-incident grooves Ca located on the two opposite side end surfaces of the light-guiding rod La, so that the above-mentioned two accommodating parts 12a are combined into one hidden in the light-guiding rod La. Accommodate the space Ra, and make the above four protruding light-incident parts 13a combined into two light-incident bumps Ba located in the accommodating space Ra. In addition, the shape of each light-incident groove Ca may be half-arc or half-cone, and the shape of each light-incident bump Ba may be half-arc or half-cone. According to the first embodiment, the shape of each light-incident groove Ca and the shape of each light-incident bump Ba are semicircular arc shapes. In addition, the number, protruding height, or density of the reflective microstructures 20a increases along the direction away from the two light incident grooves Ca, so as to achieve the purpose of controlling uniform light output, and the reflective microstructures 20a are arranged on each guide Inside the accommodating portion Ra of the optical structure A.

Please refer to FIG. 2E, when a light source (such as a light emitting diode) is arranged at one side of the light incident groove Ca, the light beams (L1a, L2a) generated by the light emitting diode can pass through the light incident groove Ca Cooperating with the light-incident bump Ba, the light beam (L1a, L2a) is efficiently transmitted into the accommodating space Ra, and then the light beam passes through the light-reflective microstructures 20a of one of the light-reflective microstructure units 2a L1a is reflected to the opposite side and projected from one of the corresponding light-emitting surfaces 103a, and at the same time, the light beam L2a is reflected to the opposite side by the light reflective microstructures 20a of another light-reflective microstructure unit 2a and emitted from the other corresponding light emitting surface 103a. The light emitting surface 103a projects out.

Please refer to FIG. 3 , which is a partial enlarged view of the second embodiment of the combined light guide module with high-efficiency light guide function of the present invention. It can be seen from the above figure that the biggest difference between the second embodiment and the first embodiment is that in the second embodiment, the shape of each light incident groove Cb and the shape of each light incident bump Bb are semi-conical shape, and the shape of each reflective microstructure 20b is cylindrical.

However, the "shape of each light incident groove", "the shape of each light incident bump" and "the shape of each light reflective microstructure" defined in the first embodiment and the second embodiment are used for It is for example only, not intended to limit the present invention. Therefore, the present invention can be based on different design requirements, each light incident groove can be a concave structure in any shape, and each light incident bump can be a protruding structure in any shape (or the light incident structure can also be omitted). The use of bumps makes this region form a planar shape), and the shape of each reflective microstructure can be a protruding structure in any shape.

Please refer to FIG. 4 , which is a three-dimensional assembled view of the third embodiment of the combined light guide module with high-efficiency light guide function of the present invention. It can be seen from the above figure that a light emitting surface 103c is a plane of a polygon. Therefore, when a light beam (not shown in the figure) is projected through the light-emitting surface 103c, the light beam passes through the polygonal surface of the light-emitting surface 103a to produce a light-condensing effect.

Please refer to FIG. 5 , which is a three-dimensional assembled view of the fourth embodiment of the combined light guide module with high-efficiency light guide function of the present invention. It can be seen from the above figure that the biggest difference between the fourth embodiment and the first embodiment is that in the fourth embodiment, a combined light guide module with high-efficiency light guide function is composed of four light guide structures D. In other words, according to the size and direction of different light emitting angles, a combined light guiding module with high-efficiency light guiding function disclosed in the present invention can be composed of two or more light guiding structures.

Furthermore, for more than two light guide structures, each light guide part 1d has two side end surfaces (100d, 101d), and two combination surfaces located between the above two side end surfaces (100d, 101d). 102d, and a light-emitting surface 103d located between the above-mentioned two side end surfaces (100d, 101d) and between the above-mentioned two combination surfaces 102d, and the at least one inner concave light-incoming portion 11d is formed on one of the one-side end surfaces 101d and the above-mentioned two Between the combination surfaces 102d, in addition, the light guide structures D are combined through the cooperation of the combination surfaces 102d.

Please refer to FIG. 6A to FIG. 6D , which are respectively the three-dimensional exploded view of the fifth embodiment of the combined light guide module with high-efficiency light guide function of the present invention, and the combined light guide module with high-efficiency light guide function of the present invention. The perspective combined view of the fifth embodiment of the module, the cross-sectional view of 6C-6C in FIG. 6B , and the partial enlarged view of 6D in FIG. 6C . It can be seen from the above figures that the fifth embodiment of the present invention provides a combined light guide module with a high-efficiency light guide function, which is composed of a first light guide structure E and a second light guide structure E′ .

The first light guide structure E includes: a first light guide body unit 1e and a light reflective microstructure unit 2e. The first light guide body unit 1e has a first light guide portion 10e, two first inner concave light portions 11e respectively formed on two opposite side ends of the first light guide portion 10e, and a first concave light portion 11e formed on the first light guide portion 10e. The first accommodating portion 12e on one plane of the light portion 10e, and two first outwardly protruding light-incoming portions 13e respectively formed at opposite ends of the first accommodating portion 12e.

Wherein the second light guiding structure E' includes: a second light guiding body unit 1e'. The second light guide body unit 1e' has a second light guide part 10e', two second inner concave light parts 11e' respectively formed on two opposite side ends of the second light guide part 10e', one formed on the The second accommodating part 12e' on a plane of the second light guiding part 10e', and two second protruding light-incoming parts 13e' respectively formed on two opposite side ends of the second accommodating part 12e' . In addition, before the first light guide structure E is formed with the light-reflective microstructure unit 2e, the first light guide structure E and the second light guide structure E′ are completely identical in shape, so the first light guide structure E and the second light guide structure E′ are identical in shape. The second light guide structure E' can be produced by using the same mold, so the present invention can greatly reduce the cost of the mold.

According to different design requirements, the first light guide structure E can also only use: a first inner concave light part 11e formed on one side end of the first light guide part 10e and a first recessed light part 11e formed in the first accommodating part 10e. The first outer convex light incident part 13e at one side end of the part 12e; the second light guide structure E' can also only use: one second concave formed at one side end of the second light guide part 10e' The light incident portion 11e' and a second protruding light incident portion 13e' formed at one side end of the second accommodating portion 12e'. Therefore, the number and designed positions of the first inner concave light incident portion 11e, the first outer convex light incident portion 13e, the second inner concave light incident portion 11e’ and the second outer convex light incident portion 13e’ of the present invention It can be adjusted according to different usage requirements.

In addition, the first light guide part 10e has two first side end surfaces (100e, 101e), a first combined surface 102e located between the above two first side end surfaces (100e, 101e), and a first combination surface 102e located between the above two first side end surfaces (100e, 101e), and a Between the first side end surfaces (100e, 101e) and corresponding to the first light-emitting surface 103e of the first combining surface 102e. One of the first inner recessed light portions 11e is formed between one of the first side end surfaces 100e and the first combined surface 102e, and another first inner concave light portion 11e is formed between one of the first side end surfaces 101e and the first combined surface 102e. between the first combined surfaces 102e. The first accommodating portion 12e is formed on the first combined surface 102e, that is, the first accommodating portion 12e is recessed downward from the first combined surface 102e to form a concave first reflective plane, and the first accommodating portion 12e A reflective plane can be designed in different shapes according to the requirements of different light uniformity and brightness. In addition, the first light-emitting surface 103e can be an arc surface or a plane of a polygon. In the fifth embodiment, the first light-emitting surface 103e is an arc surface. Therefore, when a light beam (not shown in the figure) is projected through the first light-emitting surface 103e, the light beam passes through the arc-shaped surface of the first light-emitting surface 103e to produce a light-condensing effect.

In addition, the second light guide part 10e' has two second side end surfaces (100e', 101e'), and a second combination surface 102e' located between the two second side end surfaces (100e', 101e'). , and a second light-emitting surface 103e' located between the two second side end surfaces (100e', 101e') and corresponding to the second combined surface 102e'. One of the second inner concave light portions 11e' is formed between one of the second side end surfaces 100e' and the second combined surface 102e', and another second inner concave light portion 11e' is formed on one of the second Between the side end surface 101e' and the second combined surface 102e'. The second accommodating portion 12e' is formed on the second combined surface 102e', that is, the second accommodating portion 12e' is recessed downward from the second combined surface 102e' to form a concave second reflective plane , and the second reflective plane can be designed in different shapes according to the requirements of different light uniformity and brightness. In addition, the second light-emitting surface 103e' can be an arc surface or a plane of a polygon. In the fifth embodiment, the second light-emitting surface 103e' is an arc surface. Therefore, when a light beam (not shown in the figure) is projected through the second light-emitting surface 103e', the light beam passes through the arc-shaped surface of the second light-emitting surface 103e' to produce a light-condensing effect.

Furthermore, the reflective microstructure unit 2e has a plurality of reflective microstructures 20e, wherein the shape of each reflective microstructure 20e can be hemispherical, cylindrical, triangular prism or zigzag, and according to the first embodiment, each A reflective microstructure 20e is in the shape of a hemisphere.

Please refer to FIG. 6A to FIG. 6C, because the first light guide structure E and the second light guide structure E' are assembled in cooperation with each other through the cooperation of the first combination surface 102e and the second combination surface 102e' Together, so that the above-mentioned first light guide part 10e and the second light guide part 10e' are combined into a light guide rod Le, so that the above-mentioned two first inner concave light parts 11e and the above-mentioned two second inner concave light parts The part 11e' is combined into two light incident grooves Ce located on the two opposite side end surfaces of the light guide rod Le, so that the first accommodating part 12e and the second accommodating part 12e' are combined into a The accommodating space Re in Le makes the two first protruding light-incident portions 13e and the two second protruding light-incident portions 13e′ combined into two light-incident bumps Be located in the accommodating space Re. In addition, the shape of each light-incident groove Ce may be semi-circular or semi-conical, and the shape of each light-incident bump Be may be semi-circular or semi-conical. According to the fifth embodiment, the shape of each light-incident groove Ce and the shape of each light-incident bump Be are semicircular arc shapes. In addition, the number, protruding height or density of the reflective microstructures 20e increases along the direction away from the two light incident grooves Ce, and the reflective microstructures 20e are disposed in the accommodating portion Re.

Please refer to FIG. 2E , when a light source (such as a light emitting diode) is arranged on one side of the light incident groove Ce, the light beam L1e generated by the light emitting diode can pass through the light incident groove Ce and the light incident groove Ce. The cooperation of the bump Be efficiently transmits the light beam L1e into the accommodation space Re, and then reflects the light beam L1e to the opposite side through the reflective microstructures 20e of one of the light-reflective microstructure units 2e. A corresponding second light-emitting surface 103e' projects out.

Please refer to FIG. 7 , which is a three-dimensional assembled view of the sixth embodiment of the combined light guide module with high-efficiency light guide function of the present invention. It can be seen from the above figure that the biggest difference between the sixth embodiment and the fifth embodiment is that in the sixth embodiment, a combined light guide module with high-efficiency light guide function consists of two first light guide structures F Composed of two second light guide structures F', wherein the above two first light guide structures F have a reflective microstructure unit (not shown) (such as the first light guide structure E of the fifth embodiment has a light reflective 2e), and the above two second light guide structures F' are not provided with any reflective microstructure units (as the second light guide structure E' of the fifth embodiment does not have any reflective microstructure units). In other words, according to the size and direction of different light emitting angles, a combined light guide module with high-efficiency light guide function disclosed in the present invention can be composed of two or more first light guide structures F and second light guide structures composed of F'. For example: in the sixth embodiment, the light-emitting surface 103f' of the second light-guiding structure F' without any light-reflecting microstructure unit is the surface on which the last light source is projected. In other words, the light source will finally be projected from the two light-emitting surfaces 103f'.

In summary, the present invention has the following advantages:

1. According to the first embodiment, since each light guide structure A has exactly the same shape, each light guide structure A can be made with the same mold, so the present invention can greatly reduce the cost of the mold.

2. According to the first embodiment, according to different design requirements, each light guide structure A can also only use: one concave light part 11a formed on one side end of the light guide part 10a and one formed on the One side end of the accommodating portion 12a protrudes from the light-introducing portion 13a. Therefore, the quantity and designed positions of the inner concave light incident portion 11a and the outer convex light incident portion 13a of the present invention can be adjusted according to different usage requirements.

3. According to the first embodiment, the light emitting surface 103a is an arc surface. Therefore, when a light beam (not shown in the figure) passes through the light-emitting surface 103a and is projected, the light beam passes through the arc-shaped surface of the light-emitting surface 103a to produce a light-condensing effect.

4. Taking the first embodiment as an example, when a light source (such as a light emitting diode) is arranged at one side of the light incident groove Ca, the light beams (L1a, L2a) generated by the light emitting diode can pass through the light incident cavity Ca. The cooperation between the groove Ca and the light-incident bump Ba efficiently transmits the light beam (L1a, L2a) into the accommodating space Ra, and then passes through the light-reflective microstructures 20a of one of the light-reflective microstructure units 2a The light beam L1a is reflected to the opposite side and projected from one of the corresponding light-emitting surfaces 103a, and at the same time, the light beam L2a is reflected to the opposite side by the reflective microstructures 20a of another light-reflective microstructure unit 2a to be projected from the other light emitting surface 103a. The corresponding light emitting surface 103a is projected out.

5. The present invention can be based on different design requirements. Each light incident groove can be a concave structure in any shape, and each light incident bump can be a protruding structure in any shape (or the light incident groove can also be omitted. The use of bumps makes this region form a planar shape), and the shape of each reflective microstructure can be a protruding structure in any shape.

6. Take the third embodiment. Since the light emitting surface 103c is a plane of a polygon. Therefore, when a light beam (not shown in the figure) is projected through the light-emitting surface 103c, the light beam passes through the polygonal surface of the light-emitting surface 103a to produce a light-condensing effect.

7. According to the size and direction of different light emitting angles, a combined light guiding module with a high-efficiency light guiding function disclosed in the present invention can be composed of two or more light guiding structures.

8. Taking the fifth embodiment as an example, when a light source (such as a light emitting diode) is arranged on one side of the light incident groove Ce, the light beam L1e generated by the light emitting diode can pass through the light incident groove Ce and The cooperation of the light incident bump Be efficiently transmits the light beam L1e into the accommodating space Re, and then reflects the light beam L1e to the opposite side through the reflective microstructures 20e of one of the reflective microstructure units 2e And projected from one of the corresponding second light-emitting surfaces 103e'.

9. Taking the sixth embodiment as an example, according to the size and direction of different light emitting angles, a combined light guiding module with a high-efficiency light guiding function disclosed in the present invention can be composed of two or more first light guiding modules. Structure F and the second light guide structure F'.

However, the above description is only a detailed description and accompanying drawings of one of the best specific embodiments of the present invention, but the features of the present invention are not limited thereto, and are not intended to limit the present invention. All scopes of the present invention should be Based on the claims, all embodiments that conform to the spirit of the claims of the present invention and similar changes thereof should be included in the scope of the present invention, and any changes or modifications that can be easily conceived by those skilled in the art of the present invention are all possible. covered by the scope of patent protection in this case.

Claims (9)

1. A combined light guide module with a light guide function, which is composed of a plurality of light guide structures, wherein each light guide structure is characterized in that it includes: A light guide body unit, which has a light guide part, at least one concave light part formed on one side end of the light guide part, and an accommodating part formed on the combined surface of the light guide part; and A reflective microstructure unit, which has a plurality of reflective microstructures respectively arranged in the accommodating portion; Wherein, the light guide structures cooperate with each other, so that the light guide parts are combined into a light guide rod, and the concave light parts are combined into a light incident groove on one end surface of the light guide rod, And make the accommodating parts combined into an accommodating space hidden in the light guide rod. 2. The combined light guide module with light guide function according to claim 1, characterized in that: each light guide body unit further comprises: a protruding light incident part formed at one side end of the accommodating part , and the externally protruding light-incident parts are combined into a light-incident bump. 3. The combined light guide module with light guide function according to claim 1, characterized in that: each light guide body unit further comprises: two outward protrusions respectively formed on two opposite side ends of the accommodating portion The light-incident part, and the externally convex light-incident parts are combined into two light-incident bumps; the shape of each light-incident bump is semi-circular or semi-conical. 4. The combined light guide module with light guide function according to claim 1, characterized in that: the number of the light guide structures is two, and each light guide part has two side end faces, one located at the two sides The combination surface between the two side end surfaces, and a light-emitting surface located between the two side end surfaces and corresponding to the combination surface, and the at least one concave light-incoming portion is formed between one of the side end surfaces and the combination surface In between, the accommodating portion is formed on the combined surface, and the light guiding structures are combined through the cooperation of the combined surfaces; the light-emitting surface is an arc surface or a plane of a polygon. 5. The combined light guide module with light guide function according to claim 4, characterized in that: each light guide body unit further comprises: another inner wall formed between the end face on the other side and the combined face The concave light part, and the above-mentioned concave light part formed between the other end surface and the combination surface are combined into another light incident groove; the shape of each light incident groove is a semi-arc shape or Half conical. 6. The combined light guide module with light guide function as claimed in claim 1, wherein each light guide part has two side end faces, two combined faces between the two side end faces, and a light-emitting surface located between the above-mentioned two side end surfaces and between the above-mentioned two combination surfaces, and the at least one inner concave light part is formed between one side end surface and the above-mentioned two combination surfaces, and the light guides The structure is combined through the cooperation of these combined surfaces. 7. The combined light guide module with light guide function according to claim 1, characterized in that: the shape of each reflective microstructure is hemispherical, cylindrical, triangular columnar or zigzag, and the reflective microstructures The number, protrusion height or density of the light-incidence groove increases along the direction away from the light-incidence groove. 8. A combined light guide module with light guide function, characterized in that it comprises: At least one first light guide structure, which includes: a first light guide body unit and a reflective microstructure unit, wherein the first light guide body unit has a first light guide portion, and at least one first light guide unit is formed on the first The first concave light part at one side end of the light guide part, and a first accommodating part formed on the combined surface of the first light guide part, the reflective microstructure unit has a plurality of reflective microstructures within the housing; and At least one second light guide structure, which includes: a second light guide body unit, which has a second light guide part, at least one second concave light formed at one side end of the second light guide part part, and a second accommodating part formed on the combination surface of the second light guide part; Wherein, the above-mentioned at least one first light-guiding structure and the above-mentioned at least one second light-guiding structure are combined together, so that the first light-guiding part and the second light-guiding part are combined into a light-guiding rod, so that the first inner The concave light part and the second inner concave light part are combined into a light incident groove located on one end surface of the light guide rod, and the first accommodating part and the second accommodating part are combined into a hidden The accommodating space in the light guide rod. 9. A combined light guide module with light guide function, which is composed of a plurality of first light guide structures and a plurality of second light guide structures, characterized in that: Each first light guide structure includes: a first light guide body unit and a reflective microstructure unit, wherein the first light guide body unit has a first light guide portion, and at least one first light guide unit is formed on the first The first concave light part at one side end of the light guide part, and a first accommodating part formed on the combined surface of the first light guide part, the reflective microstructure unit has a plurality of reflective microstructures within the housing; and Each second light guide structure includes: a second light guide body unit, which has a second light guide part, at least one second concave light formed at one side end of the second light guide part part, and a second accommodating part formed on the combination surface of the second light guide part; Wherein, the first light guide structures and the second light guide structures are combined together, so that the first light guide parts and the second light guide parts are combined into a light guide rod, so that the first light guide structures The inner concave light part and the second inner concave light parts are combined into a light incident groove located on one end surface of the light guide rod, and the first receiving parts and the second receiving parts are combined Form an accommodating space hidden in the light guide rod.

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