WO2016146017A1

WO2016146017A1 - Lamp

Info

Publication number: WO2016146017A1
Application number: PCT/CN2016/076043
Authority: WO
Inventors: 林炜程; 黄国豪
Original assignee: 瑞仪光电(苏州)有限公司; 瑞仪光电股份有限公司
Priority date: 2015-03-13
Filing date: 2016-03-10
Publication date: 2016-09-22
Also published as: TWI572822B; TW201632782A

Abstract

A lamp (960), comprising a base (961), a light source (963) and a light guide assembly (900). The light source (963) is attached to the base (961). The light guide assembly (900) is detachable from the base (961) when in a first position, and is attached to the base (961) when in a second position. The light guide assembly (900) comprises a first end face (910) having a first outer periphery (910a) and a first inner periphery (910b), a second end face (920) having a second outer periphery (920a) and a second inner periphery (920b), an outer surface (930) connecting the first outer periphery (910a) and the second outer periphery (920a), and an inner surface (940) connecting the first inner periphery (910b) and the second inner periphery (920b). The light guide assembly (900) can meet requirements for various illumination angles of lighting, and reduce energy consumption.

Description

Lamp

Technical field

The present invention relates to a luminaire, and more particularly to a luminaire having a light guide assembly of controllable light type.

Background technique

Traditional lamps are mainly composed of a bulb and a reflector. The main function of the reflector is to direct the light from the bulb to the desired direction and to change the light pattern produced when the bulb is illuminated. However, the variability of changing the light pattern by the reflector is not large, and the light pattern is usually in the form of condensing, which is limited in application.

Another conventional luminaire is to change the light type by using a light source with a secondary optical component. However, such an architecture must provide a recess in the center of the secondary optical component and place the light source in the recess to achieve the purpose of adjusting the light pattern. Therefore, the secondary optical component must match different forms or different numbers of light sources to change the design of the entire component architecture, thus resulting in an increase in cost.

Therefore, there is a need for a light guiding component that can change various light types to solve the above problems.

Summary of the invention

Accordingly, it is an object of the present invention to provide a light control type light guide assembly that utilizes the total reflection characteristic of light to control the direction of travel of light, thereby achieving the purpose of adjusting the light pattern output by the light guide assembly. The application of the light guiding component can meet various lighting angle illumination requirements while reducing energy loss.

Another object of the present invention is to provide a light control type light guide assembly that can change the curved shape of the outer surface, the inner surface, and the second end surface by a profile curve, thereby adjusting the light in the light guide assembly. Direction of travel, smoothly reach the control output light type the goal of.

It is still another object of the present invention to provide a light control module capable of controlling light type, which can define various contour curves by a Bezier curve, thereby simplifying the definition rules of each curved surface and controlling the light guiding in a more intuitive manner. The shape of the entire profile curve of the component.

According to the above object of the invention, a lamp is proposed. The luminaire includes a base, a light source, and a light guide assembly. The light source is coupled to the base. The light guide assembly can be detached from the base when in the first position and coupled to the base when in the second position. The light guiding assembly includes a first end surface, a second end surface, an outer surface, and an inner surface. The first end surface has a first outer circumference and a first inner circumference. The second end surface is opposite to the first end surface and has a second outer circumference and a second inner circumference. The outer surface connects the first outer periphery and the second outer periphery. The inner surface connects the first inner circumference and the second inner circumference.

According to an embodiment of the invention, the light guiding component can be separated from the base in the first direction relative to the base when in the first position, or can be rotated in the second direction relative to the base to the second position. And combined with the base.

According to another embodiment of the present invention, the first end surface is provided with an annular groove, and the light source is disposed in the annular groove.

According to still another embodiment of the present invention, the light guiding assembly has a first section and a second section. Wherein the first section has a curvature and the second section has no curvature.

According to a further embodiment of the invention, the second section protrudes from the first section.

According to still another embodiment of the present invention, the base has a seat body and a bracket. The light source is bonded to the body. The bracket has a matching area and a retaining edge, and the retaining edge forms a positioning area with the seat as the second position, and the matching area is in communication with the positioning area as the first position.

According to still another embodiment of the present invention, the light guiding assembly further includes a joint portion, wherein the joint portion is located in the alignment area when the light guide assembly is in the first position, and the joint portion is located in the positioning area when the light guide assembly is in the second position. .

According to still another embodiment of the present invention, the light source comprises a circuit board and a plurality of light emitting diodes. These light emitting diodes are arranged in a ring shape on the circuit board.

According to still another embodiment of the present invention, the circuit board has a first joint portion and a bracket There is a second joint, wherein the first joint is located in the second joint.

In accordance with still another embodiment of the present invention, the outer surface extends outwardly from the first outer periphery of the first end surface to connect to the second outer periphery of the second end surface.

According to still another embodiment of the present invention, the inner surface is expanded inward from the first inner circumference of the first end surface to be coupled to the second inner circumference of the second end surface.

In accordance with still another embodiment of the present invention, at least one of the inner surface and the outer surface has at least a first expanded section and at least a second expanded section, the first expanded section being coupled to the second expanded section, and the direction of expansion of the two It is not the same.

According to still another embodiment of the present invention, the area of the first end surface is smaller than the area of the second end surface.

According to still another embodiment of the present invention, the first inner circumference defines a first opening, the second inner circumference defines a second opening, the first opening and the second opening communicate with each other, and the area of the first opening is larger than the second opening area.

According to still another embodiment of the present invention, the first inner circumference defines a first opening, the second inner circumference defines a second opening, the first opening is located on the first end surface, the second opening is located on the second end surface, and the first The diameter of the opening is larger than the diameter of the second opening.

According to still another embodiment of the present invention, at least a portion of the outer surface is a curved surface constructed by at least one first contour curve, and at least a portion of the inner surface is a curved surface constructed by at least one second contour curve, the first contour curve and The second profile curve can be the same curve or a different curve.

According to still another embodiment of the present invention, the second end surface is a curved surface constructed by a third outer shape curve, wherein the third outer shape curve is formed by the second outer peripheral edge being connected to the second inner peripheral edge.

DRAWINGS

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

1A is a perspective view showing a light controllable light guide assembly according to a first embodiment of the present invention.

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

2A is a perspective view showing a light control module of a controllable light type according to a second embodiment of the present invention.

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

2C is a schematic view showing a first outline curve according to a second embodiment of the present invention.

2D is a graph showing a light distribution generated by a light guiding assembly according to a second embodiment of the present invention.

3A is a perspective view showing a light control module of a controllable light type according to a third embodiment of the present invention.

Fig. 3B is a cross-sectional view taken along line C-C of Fig. 3A.

3C is a schematic view showing a first outline curve according to a third embodiment of the present invention.

3D is a graph showing a light distribution generated by a light guiding assembly according to a third embodiment of the present invention.

4A is a perspective view showing a light control module of a controllable light type according to a fourth embodiment of the present invention.

Fig. 4B is a cross-sectional view taken along line D-D of Fig. 4A.

4C is a schematic view showing a first outline curve according to a fourth embodiment of the present invention.

4D is a graph showing a light distribution generated by a light guiding assembly according to a fourth embodiment of the present invention.

5A is a perspective view showing a light control module of a controllable light type according to a fifth embodiment of the present invention.

Fig. 5B is a cross-sectional view taken along line E-E of Fig. 5A.

Fig. 5C is a schematic view showing a first outline curve according to a fifth embodiment of the present invention.

5D is a graph showing a light distribution generated by a light guiding assembly according to a fifth embodiment of the present invention.

6A is a perspective view showing a first embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention.

Fig. 6B is a graph showing a light distribution curve produced by a light guiding assembly according to a first embodiment of the sixth embodiment of the present invention.

7A is a perspective view showing a second embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention.

7B is a graph showing a light distribution generated by a light guiding assembly according to a second embodiment of the sixth embodiment of the present invention.

8A is a perspective view showing a third embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention.

8B is a graph showing a light distribution generated by a light guiding assembly according to a third embodiment of the sixth embodiment of the present invention.

9A is a perspective view showing a fourth embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention.

9B is a graph showing a light distribution generated by a light guiding assembly according to a fourth embodiment of the sixth embodiment of the present invention.

Fig. 10A is a perspective view showing a fifth embodiment of a light control type light guide unit according to a sixth embodiment of the present invention.

Fig. 10B is a graph showing a light distribution curve produced by a light guiding assembly according to a fifth embodiment of the sixth embodiment of the present invention.

Figure 11A is a perspective view showing a light guiding assembly in accordance with a seventh embodiment of the present invention.

11B is a schematic cross-sectional view showing a light guiding assembly according to a seventh embodiment of the present invention.

FIG. 12A is an exploded perspective view showing a lamp according to an embodiment of the present invention.

12B is a schematic cross-sectional view showing a light guiding assembly snap-fitted to a bracket according to an embodiment of the invention.

12C is a schematic cross-sectional view showing a luminaire according to an embodiment of the present invention.

detailed description

1A and 1B are respectively a perspective view showing a light controllable light guide assembly according to a first embodiment of the present invention, and a cross-sectional view taken along line A-A of Fig. 1A. In the present embodiment, the light guiding assembly 100 is adapted to guide the light to be totally reflected in the light guiding assembly 100 to cause the light to produce different beam angles. Light referred to herein is derived from a light source, such as a light emitting diode. The light guide assembly 100 has an annular frustum and has a through hole 110. The light guide assembly 100 includes a first end surface 112, a second end surface 114, an outer surface 116, and an inner surface 118. The first end surface 112 and the second end surface 114 may be a light incident surface and a light exit surface, respectively, and the outer surface 116 and the inner surface 118 may be reflective surfaces. The through hole 110 defines a first opening 110a in the first end surface 112, and the first end surface 112 has a first outer circumference 112a and a first inner circumference 112b. The second end surface 114 is opposite to the first end surface 112. The through hole 110 defines a second opening 110b in the second end surface 114, and the second end surface 114 has a second outer circumference 114a and a second inner circumference 114b. That is, the first opening 110a and the second opening 110b communicate with each other, while the first inner circumference 112b defines a first opening 110a and the second inner circumference 114b defines a second opening 110b. As shown in FIG. 1A and FIG. 1B, the area of the first opening 110a is larger than the area of the second opening 110b, and the area of the first end surface 112 is smaller than the area of the second end surface 114.

The outer surface 116 connects the first outer circumference 112a and the second outer circumference 114a, and the outer surface 116 is a curved surface constructed by the first contour curve B1. As shown in FIGS. 1A and 1B, the outer surface 116 extends outwardly from the first outer periphery 112a of the first end surface 112 to connect to the second outer periphery 114a of the second end surface 114. The first contour curve B1 is formed by the first starting point P ₀ on the first outer circumference 112a and the first ending point P ₂ on the second outer circumference 114a. More specifically, the first profile B1 in the present embodiment is a curve defined by the intersection of any of the cut planes passing through the center of the light guide assembly 100 and perpendicular to the first end face 112 and the outer surface 116. The inner surface 118 connects the first inner circumference 112b and the second inner circumference 114b, and the inner surface 118 is a curved surface constructed by the second outer shape curve B2. The second contour curve B2 is formed by the second starting point P ₀ ' on the first inner circumference 112b and the second ending point P ₂ ' on the second inner circumference 114b. Likewise, the second profile B2 in the present embodiment is a curve defined by the intersection of any of the cut planes passing through the center of the light guide assembly 100 and perpendicular to the first end face 112 and the inner surface 118.

In an embodiment, the first profile curve B1 is defined by a Bezier curve function. The Bezier curve mainly uses three or more point positions to define the coordinates first, and then draws different curves according to different weights. Among them, the Bezier curve function is:

Where P _i represents the coordinates of the i-th point in the Bezier curve function. There is at least one first control point P ₁ between the first starting point P ₀ and the first ending point P ₂ . The at least one first control point P _{1 is} mainly used to determine the curvature of the first contour curve B1. Further, when the total number of points for a first control point, defining a first starting point position coordinates P ₀ _{_{P 0 = (X 0, Y}} 0), controlling at least a first coordinate of point P ₁ P ₁ = (X ₁ , Y ₁ ), the position coordinate P _{2 of the} first end point P ₂ is (X ₂ , Y ₂ ). In the Bezier curve function, the value n is the value obtained by the total number of points +1 of at least one first control point P ₁ . For example, when there are two at least one first control point, the value n is 3. Furthermore, W ₁ is the weight of the first control point P ₁ which adjusts the curve to approximate the random shape. 1B, the first starting point and a first control point P ₀ P line defined weight of ₁ W ₁ = _1, the first starting point P ₀ and the end point of the first line P defined weight of ₂ W ₁ = 0. When the weight W _{1 is} closer to 1, the first contour curve B1 will be biased toward the first starting point P ₀ and the first control point P ₁ . When the weight W _{1 is} closer to 0, the first contour curve B1 will be biased toward the first starting point P ₀ and the first end point P ₂ . The t of the Bezier curve function is the ratio of the length of the default point to the first starting point P _{0 to} the total length. The aforementioned total length is the total length of the curve formed by the first starting point P ₀ to the first ending point P ₂ . It can be seen that t can represent the position corresponding value of any point between the first starting point P ₀ and the first ending point P ₂ on the first contour curve B1.

After defining the first starting point P ₀ , the first control point P ₁ and the first ending point P ₂ , embodiments of the present invention further define the limitations of the first contour curve B1 as follows:

X ₀ ≦X ₁ ≦X ₂

90°≧α ₁ ≧α ₂

0≦α ₁ =θ ₁ +θ ₂ -90°

θ ₂ ≧90°-θ ₁

0≦W _i ≦1

Continuing to refer to FIG. 1B, α ₁ is the angle between the first starting point P ₀ and the first control point P ₁ and the horizontal line, and α ₂ is the angle between the first starting point P ₀ and the first ending point P ₂ and the horizontal line. θ ₁ is the angle of refraction of the light entering the light guiding component 100 from the outside, θ ₂ is the incident angle of the light entering the light guiding component 100 and then emitting to the outer surface 116, and n _material is the refractive index of the _material of the light guiding component 100. Thereby, adjusting the respective parameter values of the first profile curve B1 can change the shape of the entire outer surface 116.

Referring again to FIGS. 1A and 1B, in an embodiment, the second profile curve B2 may be the same as the first profile curve B1, both defined by the Bessel curve function described above.

Therein, there is at least one second control point P ₁ ' between the second starting point P ₀ ' and the second ending point P ₂ '. The at least one second control point P ₁ ′ is mainly used to determine the curvature of the second contour curve B2. In addition, when the total number of points of the second control point is 1, the position coordinate P ₀ '=(X ₀ ', Y ₀ ') of the second starting point P ₀ ', and the position of the at least one second control point P ₁ ' are defined. The coordinate P ₁ '=(X ₁ ', Y ₁ '), the position coordinate P ₂ '=(X ₂ ', Y ₂ ') of the second end point P ₂ '. In this Bezier curve function, the value n is the value obtained by the total number of points +1 of at least one second control point P ₁ '. In addition, W ₁ is the weight of the second control point P ₁ ', which can adjust the curve to approach the random shape. As shown in FIG. 1B, the online definition weight W ₁ =1 of the second starting point P ₀ ′ and the second control point P ₁ ′, and the online definition weight W of the second starting point P ₀ ′ and the second ending point P ₂ ′ ₁ =0. When the weight W _{1 is} closer to 1, the second contour curve B2 will be biased toward the second starting point P ₀ ' and the second control point P ₁ '. When the weight W _{1 is} closer to 0, the second contour curve B2 will be biased toward the second starting point P ₀ ' and the second ending point P ₂ '. The t of the Bezier curve function is the ratio of the length of the default point to the second starting point P ₀ ' to the total length. The aforementioned total length is the total length of the curve formed by the second starting point P ₀ ' to the second ending point P ₂ '. It can be seen that t can represent the position corresponding value of any point between the second starting point P ₀ ' and the second ending point P ₂ ' on the second contour curve B2.

After defining the second starting point P ₀ ', the second control point P ₁ ', and the second ending point P ₂ ', embodiments of the present invention further define the limitations of the second contour curve B2 as follows:

X ₀ '≦X ₁ '≦X ₂ '

90°≧α ₁ '≧α ₂ '

0≦α ₁ '=θ ₁ '+θ ₂ '-90°

θ ₂ '≧90°-θ ₁ '

0≦W _i ≦1

At the same time, as shown in FIG. 1B, α ₁ ' is the angle between the second starting point P ₀ ' and the second control point P ₁ 'on the horizontal line, and α ₂ ' is the second starting point P ₀ ' and the second ending point P. ₂ 'The angle between the line and the horizontal line. θ ₁ ' is the angle of refraction into the light guiding component 100 from the outside, θ ₂ ' is the incident angle of the light entering the light guiding component 100 and then incident on the inner surface 118, and n _material is the refractive index of the _material of the light guiding component 100. Thereby, adjusting the respective parameter values of the second profile curve B2 can change the shape of the entire inner surface 118.

As can be seen from the above, the second contour curve B2 is defined by the Bezier function as well as the first contour curve B1, and the limitation range is also the same. Therefore, in the embodiment, the second outer shape curve B2 and the first outer shape curve B1 may be the same curve, so that the outer surface 116 It is symmetrical with the inner surface 118. However, in another embodiment, the second profile curve B2 and the first profile curve B1 can be set by different parameters to form different curves, such that the outer surface 116 and the inner surface 118 are asymmetrical. In addition, the outer surface 116 of the light guiding assembly is a second outer peripheral edge 114a that extends outwardly from the first outer peripheral edge 112a of the first end surface 112 and is connected to the second end surface. The inner surface 118 is from the first end surface. The first inner periphery 112b of the 112 is inwardly expanded to be coupled to the second inner periphery 114b of the second end surface 114. By this design, the light enters the light guiding component 100 from the first end surface 112, is reflected by the light guiding component 100, and is emitted by the second end surface 114.

2A to 2D are respectively a perspective view showing a light control type light guide assembly according to a second embodiment of the present invention, a cross-sectional view taken along line BB of FIG. 2A, and a light guide assembly. The first outline curve diagram and the light distribution curve generated by the light guiding component.

In the second embodiment, the first contour curve B1 of the light guiding component 200 is a first starting point P ₀ = (0, 0), a first control point P ₁ = (21.3, 13), and a first ending point P ₂ = (36, 8.5) and W ₁ = 0.45 are the curves formed by the parameter conditions (as shown in Figure 2C). The second outer shape curve B2 is symmetric with the first outer shape curve B1. 2B shows that light enters the light guide assembly 200 from the first end face 212 and is reflected by the second end face 214 after being reflected in the light guide assembly 200. In this embodiment, after being guided by the light guiding assembly 200, the beam angle formed by the outgoing light is about 82 degrees.

3A to 3D, which are perspective views showing a light controllable light guide assembly according to a third embodiment of the present invention, a cross-sectional view taken along line CC of FIG. 3A, and a light guide assembly. The first outline curve diagram and the light distribution curve generated by the light guiding component.

In the third embodiment, the first contour curve B1 of the light guiding component 300 is a first starting point P ₀ = (0, 0), a first control point P ₁ = (7.6, 4.6), and a first ending point P ₂ = (36, 8.5) and W ₁ = 0.45 are the curves formed by the parameter conditions (as shown in Figure 3C). The second outer shape curve B2 is symmetric with the first outer shape curve B1. FIG. 3B shows that light enters the light guide assembly 300 from the first end surface 312, is reflected by the light guide assembly 300, and is emitted by the second end surface 314. In this embodiment, after being guided by the light guiding assembly 300, the beam angle formed by the emitted light is about 24 degrees.

4A to 4D are respectively a perspective view showing a light controllable light guide assembly according to a fourth embodiment of the present invention, a cross-sectional view taken along line DD of FIG. 4A, and a light guide assembly. The first outline curve diagram and the light distribution curve generated by the light guiding component.

In a fourth embodiment, at least one of the inner surface 418 and the outer surface 416 of the light directing assembly 400 has at least one first expanded segment and at least one second expanded segment, the first expanded segment being connected to at least one Two expansion segments, and the direction of expansion of the two is different. In the present embodiment, inner surface 418 has a first expanded section 418a and a second expanded section 418b. Outer surface 416 also has a first expanded section 416a and a second expanded section 416b. In the present embodiment, as shown in FIG. 4B, the inner surface 418 is inwardly expanded from the first end surface 412 and then expanded outwardly to the second end surface 414, and the outer surface 416 is outwardly expanded from the first end surface 412. It then expands inwardly to the second end face 414, thereby forming first expanded

segments

418a and 416a and second expanded

segments

418b and 416b. The first contour curve B1 of the light guiding component 400 is a first starting point P ₀ = (0, 0), a first control point P ₁ = (24.6, 17.2), a first ending point P ₂ = (36, 8.5), and W ₁ = 0.45 is the curve formed by the parameter conditions (as shown in Fig. 4C). The second outer shape curve B2 is symmetric with the first outer shape curve B1. 4B shows that light enters the light guide assembly 400 from the first end face 412 and is reflected by the second end face 414 after being reflected in the light guide assembly 400. In this embodiment, after being guided by the light guiding assembly 400, the beam angle formed by the outgoing light is about 93 degrees.

5A to 5D are respectively a perspective view showing a light control module of a controllable light type according to a fifth embodiment of the present invention, a cross-sectional view taken along line EE of FIG. 5A, and a light guiding assembly. The first outline curve diagram and the light distribution curve generated by the light guiding component.

In the fifth embodiment, the light guiding assembly 500 is similar to the light guiding assembly 100. The light guiding assembly 500 includes a first end surface 512, a second end surface 514, an outer surface 516, and an inner surface 518. The outer surface 516 and the inner surface 518 are the same as the outer surface 116 and the inner surface 118 of the light guide assembly 100, and are also constructed by the first outer shape curve B1 and the second outer shape curve B2, and thus are not described herein. In the present embodiment, the second end surface 514 has an outer peripheral edge 514a and an inner peripheral edge 514b, and the second end surface 514 is a curved surface constructed by the third outer shape curve B3. The third contour curve B3 is formed by the third starting point P ₃ on the outer circumference 514a and the third ending point P ₅ on the inner circumference 514b.

More specifically, the third outline curve B3 in the present embodiment is a curve defined by the intersection of any cut surface passing through the center of the light guiding member 500 and perpendicular to the first end surface 512 and the second end surface 514. In an embodiment, the third profile curve B3 may be the same as the first profile curve B1, both defined by the Bezier curve function described above.

Therein, there is at least one third control point P ₄ between the third starting point P ₃ and the third ending point P ₅ . The third control point P _{4 is} mainly used to determine the curvature of the third contour curve B3. In addition, when the total number of points of the third control point is 1, the position coordinate P ₃ = (X ₃ , Y ₃ ) of the third starting point P ₃ is defined, and the position coordinate P _{4 of the} third control point P ₄ is (X ₄ , Y _4), the third termination coordinate point P ₅ _{_{P 5 = (X 5, Y}} 5). In the Bezier function, the definitions of the numerical value n, the weight W _i , the positional correspondence values t and P _i are the same as those of the first embodiment described above, and are not described herein. After defining the third starting point P ₃ , the third control point P ₄ and the third ending point P ₅ , embodiments of the present invention further define a limitation of the third profile curve B3: X ₃ =X ₅ , Y ₃ ≧Y ₄ ≧Y ₅ , and 0≦W _i ≦1.

Referring again to FIGS. 5A to 5D, in the fifth embodiment, the first outer shape curve B1 and the second outer shape curve B2 are formed in the same manner as the third embodiment. The third contour curve B3 is a third starting point P ₃ = (0, 21), a third control point P ₄ = (10.6, 10.6), a third ending point P ₅ = (0, 0), and W ₄ = 0.45 The curve formed for the parameter conditions (as shown in Figure 5C). FIG. 5B shows that light enters the light guide assembly 500 from the first end face 512 and is reflected by the second end face 514 after being reflected in the light guide assembly 500. In this embodiment, after being guided by the light guiding assembly 500, the beam angle formed by the emitted light is about 13 degrees. Thereby, it can be seen from the above-described first to fifth embodiments that the curved shape of the entire second end surface 514 can be changed by adjusting the respective parameter values of the third outer shape curve B3.

6A and 6B are respectively a perspective view showing a first embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention, and a light distribution curve thereof. In this embodiment, the light guide assembly 600 also has a first end surface 612, a second end surface 614, an outer surface 616, and an inner surface 618. The outer surface 616 is formed by six first reflective curved surfaces, and the first reflective curved surfaces are also constructed by the first outer shape curve B1. Similarly, the inner surface 618 is formed by six second reflective curved surfaces, which are also constructed with a second contour curve B2.

7A and 7B are respectively a perspective view showing a second embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention, and a light distribution curve thereof. In this embodiment, the light guide assembly 700 also has a first end surface 712, a second end surface 714, an outer surface 716, and an inner surface 718. The outer surface 716 is formed by eight first reflective curved surfaces, and the first reflective curved surfaces are also constructed by the first contour curve B1. Similarly, the inner surface 718 is formed by eight second reflective curved surfaces, which are also constructed with a second contour curve B2.

8A and 8B are respectively a perspective view of a third embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention and a light distribution curve thereof. In this embodiment, light directing assembly 800 also has a first end surface 812, a second end surface 814, an outer surface 816, and an inner surface 818. The outer surface 816 is formed by twelve first reflective curved surfaces, and the first reflective curved surfaces are also constructed by the first outer shape curve B1. Similarly, the inner surface 818 is formed by twelve second reflective curved surfaces, which are also constructed with a second contour curve B2.

As can be seen from the above, the

light directing assemblies

600, 700, 800 can be varied into a variety of different shapes, as can the beam angles of the light entering the

light directing assemblies

600, 700, 800. More specifically, the first reflective curved surface and the second reflected curved surface in the sixth embodiment The number of faces does not have to correspond or be different. In addition, the first contour curve B1 and the second contour curve B2 may also be the same curve or different curves. Other variations of the light guiding member 600 will be described below as other embodiments of the sixth embodiment.

9A and 9B are respectively a perspective view showing a fourth embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention, and a light distribution curve thereof. In this embodiment, the first contour curve B1 of the light guiding component 600a is a first starting point P ₀ = (0, 0), a first control point P ₁ = (10.3, 6.2), and a first ending point P ₂ = (36, 8.5) and W ₁ = 0.45 are the curves formed by the parameter conditions. The second outer shape curve B2 is symmetric with the first outer shape curve B1. After being guided by the light guiding component 600a, the beam angle formed by the outgoing light is about 47 degrees.

10A and 10B are respectively a perspective view showing a fifth embodiment of a light controllable light guide assembly according to a sixth embodiment of the present invention, and a light distribution curve thereof. In this embodiment, the first contour curve B1 of the light guiding component 600b is a first starting point P ₀ = (0, 0), a first control point P ₁ = (32.8, 22.9), and a first ending point P ₂ = (36, 8.5) and W ₁ = 0.45 are the curves formed by the parameter conditions. The second contour curve B2 is a second starting point P ₀ '=(0,0), a second control point P ₁ '=(10,15), a second ending point P ₂ '=(36,8.5) and W ₁ =0 is the curve formed by the parameter conditions. After being guided by the light guiding component 600b, the beam angle formed by the outgoing light is about 63 degrees.

In the present invention, the aforementioned light guiding components may have different designs. 11A and 11B, which are respectively a perspective view and a cross-sectional view showing a light guiding assembly according to a seventh embodiment of the present invention. The light guiding assembly 900 of the present embodiment includes a first end surface 910, a second end surface 920, an outer surface 930, and an inner surface 940. The first end surface 910 has a first outer peripheral edge 910a and a first inner peripheral edge 910b. The second end surface 920 is opposite to the first end surface 910, and the second end surface 920 has a second outer circumference 920a and a second inner circumference 920b. In this embodiment, the second end surface 920 of the light guiding component 900 can be a light emitting surface, and the first end surface 910 of the light guiding component 900 is recessed inward to form an annular groove 911. The annular groove 911 can be mainly used. The light source in the luminaire is accommodated, and therefore, the inner surface of the annular groove 911 is It is a light incident surface. This method is different from the first embodiment described above (as shown in FIGS. 1A and 1B ). The entire surface of the first end surface 112 serves as a light incident surface. Therefore, the manner of the light incident surface is not limited to this. The embodiment described in the invention.

As shown in FIGS. 11A and 11B, the outer surface 930 connects the first outer peripheral edge 910a and the second outer peripheral edge 920a, and the inner surface 940 connects the first inner peripheral edge 910b and the second inner peripheral edge 920b. Therefore, the portion of the inner surface 940a adjacent to the first inner circumference 910a may be defined as the first opening 901a, and the first opening 901a is located on the first end surface 910. Similarly, a portion of the inner surface 940a adjacent to the second inner circumference 920b may be defined as a second opening 901b, and this second opening 901b is located on the second end surface 920. The first opening 901a and the second opening 901b communicate with each other, and the area of the first opening 901a is larger than the area of the second opening 901b. That is, the area of the first end surface 910 is smaller than the area of the second end surface 920. In an embodiment, the diameter of the first opening 901a is greater than the diameter of the second opening 901b.

Referring again to FIGS. 11A and 11B, the light guide assembly 900 has a first section S1 and a second section S2. The first section S1 has a curvature. That is, the portion of the inner surface 930 and/or the outer surface 940 of the light guiding component 900 that is located in the first section S1 may be an annular curved surface. In an embodiment, the annular curved surface may also be defined by the profile shown in the previous embodiments. Furthermore, the second section S2 does not have a curvature. That is to say, the portions of the inner surface 930 of the light guiding assembly 900 and the outer surface 940 located at the second section S2 are both annular planes. As shown in FIGS. 11A and 11B, the second section S2 protrudes from the first section S1, whereby the diameter of the outer surface 930 at the second section S2 can be made larger than the diameter of the outer surface 930 at the first section S1. .

12A to 12B, wherein FIG. 12A is an exploded perspective view showing a light fixture according to an embodiment of the present invention, and FIG. 12B is a view showing a light guide assembly engaged with the light guide according to an embodiment of the present invention. A schematic cross-sectional view of the seat, and FIG. 12C is a schematic cross-sectional view showing a luminaire according to an embodiment of the present invention. The light fixture 960 of the present embodiment includes a base 961, a light source 963, and the aforementioned light guide 900 assembly. Light source 963 is coupled to base 961. The light guide assembly 900 is detachably coupled to the base 961. Wherein, when the light guiding component 900 is in the first position, it can be from the base 961 separation. When the light guiding component 900 is in the second position, it is coupled to the base 961.

In the embodiment, the base 961 includes a seat body 961a and a bracket 961b disposed on the seat body 961a, and the light source 963 can be simultaneously fixed to the seat body 961a. In an example, the bracket 961b can be locked to the seat body 961a by screws. As shown in FIG. 12A, the light source 963 includes a circuit board 963a and a plurality of light emitting diodes 963b disposed on the circuit board 963a. Among them, the circuit board 963a has a first joint portion 963c. The bottom of the bracket 961b has a second engaging portion 965a corresponding to the first engaging portion 963c of the circuit board 963a. Thereby, when the bracket 961b fixes the light source 963 on the base 961a, the first engaging portion 963c of the circuit board 963a is located in the second engaging portion 965a of the bracket 961b, and the second engaging portion 965a can limit the circuit board The first joint portion 963c of 963a.

Referring again to FIGS. 12A-12B, the bracket 961b has a registration area 965b and a rim 965c adjacent to the alignment area 965b. Wherein, the alignment area 965b can be defined as the first location. As shown in FIG. 12B, when the bracket 961b is fixed to the seat body 961a, a positioning area 965d can be formed between the flange 965c and the seat body 961a. The positioning area 965d is connected to the alignment area 965b, and the positioning area 965d can be defined as the second position. In addition, the light guiding component 900 includes a bonding portion 950 adjacent to the first end surface 910.

Therefore, when the light guide assembly 900 is assembled to the base 961a, the light guide assembly 900 can be moved to the first position along the first direction D1, that is, the joint portion 950 of the light guide assembly 900 is correspondingly placed in the bracket. 961b in the alignment area 965b. Then, the light guide assembly 900 is rotated along the second direction D2 to rotate the light guide assembly 900 to the second position, that is, the joint portion 950 of the light guide assembly 900 is moved into the positioning region 965d and the pair with the bracket 961b. The bit region 965b is misaligned, thereby allowing the light guiding member 900 to be snapped onto the bracket 961b. At this time, the retaining edge 965c of the bracket 961b can limit the joint portion 950 of the light guiding assembly 900, thereby achieving the purpose of fixing the light guiding assembly 900. Further, when the light guiding component 900 is in the first position, the bonding portion 950 is located in the alignment area 965b, and when the light guiding component 900 is in the second position, The joint portion 950 is located in the positioning area 965d. As shown in FIG. 12C, when the light guide assembly 900 is engaged with the bracket 961b, the LED 963c is located in the annular groove 911 of the light guide assembly 900, thereby allowing light to pass from the annular groove of the light guide assembly 900. The inner surface of the 911 is incident on the light guide assembly 900.

It can be seen from the above embodiments of the present invention that the present invention has the advantages of changing the curved shapes of the outer surface, the inner surface, and the second end surface by using the first outer shape curve, the second outer shape curve, and the third outer shape curve, and utilizing the total reflection characteristic of light to The direction of travel of the light is controlled to adjust the light output of the light guide assembly to meet various lighting angle illumination requirements while reducing energy loss. In addition, the present invention defines each shape curve by a Bezier curve, which not only simplifies the definition rules of each surface, but also controls the shape of the entire profile curve in a more intuitive manner.

The present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention, and the present invention can be variously modified and retouched without departing from the spirit and scope of the present invention. The scope of protection is subject to the scope defined by the claims.

Symbol Description

100 light guide assembly

110 through hole

110a first opening

110b second opening

112 first end face

112a first outer periphery

112b first inner circumference

114 second end face

114a second outer circumference

114b second inner circumference

116 outer surface

118 inner surface

200 light guide assembly

212 first end face

214 second end face

300 light guide assembly

312 first end face

314 second end face

400 light guide assembly

412 first end face

414 second end face

416 outer surface

416a first expansion section

416b second expansion section

418 inner surface

418a first expansion section

418b second expansion section

500 light guide assembly

512 first end face

514 second end face

514a outer periphery

514b inner circumference

516 outer surface

518 inner surface

600 light guide assembly

600a light guide

600b light guide

612 first end face

614 second end face

616 outer surface

618 inner surface

700 light guide assembly

712 first end face

714 second end face

716 outer surface

718 inner surface

800 light guide assembly

812 first end

814 second end face

816 outer surface

818 inner surface

900 light guide assembly

901a first opening

901b second opening

910 first end face

910a first outer periphery

910b first inner circumference

911 annular groove

920 second end face

920a second outer periphery

920b second inner circumference

930 outer surface

930a first expansion section

930b second expansion section

940 inner surface

940a first expansion section

940b second expansion section

950 joint

960 luminaire

961 base

961a seat

961b bracket

963 light source

963a board

963b LED

963c first joint

965a second joint

965b alignment area

965c retaining edge

965d positioning area

B1 first shape curve

B2 second profile curve

B3 third profile curve

D1 first direction

D2 second direction

P ₀ first starting point

P ₁ first control point

P ₂ first termination point

P ₀ ' second starting point

P ₁ 'second control point

P ₂ ' second termination point

P ₃ third starting point

P ₄ third control point

P ₅ third termination point

S1 first section

S2 second section

_{1 1} angle

α ₂ angle

α ₁ ' angle

α ₂ ' angle

θ ₁ refraction angle

θ ₂ incident angle

θ ₁ refraction angle

θ ₂ ' incident angle

Claims

A luminaire comprising:

Pedestal

a light source coupled to the base;

The light guiding component is detachable from the pedestal when in the first position, and is coupled to the pedestal in the second position, wherein the light guiding component comprises:

a first end surface having a first outer circumference and a first inner circumference;

a second end surface opposite to the first end surface and having a second outer circumference and a second inner circumference;

An outer surface connecting the first outer circumference and the second outer circumference;

An inner surface connecting the first inner circumference and the second inner circumference.
The luminaire of claim 1 , wherein the light guiding component is detachable from the pedestal relative to the pedestal in a first direction when in the first position, or The base is coupled to the base by rotating in a second direction to the second position.
The luminaire of claim 1, wherein the first end face is provided with an annular groove, and the light source is disposed in the annular groove.
The luminaire of claim 1 wherein the light directing assembly has a first section and a second section, wherein the first section has a curvature and the second section has no curvature.
The luminaire of claim 4 wherein said second section projects from said first section.
The luminaire according to claim 1, wherein the base has a seat body and a bracket, the light source is coupled to the seat body, the bracket has a aligning area and a retaining edge, and the rim A positioning area is formed with the seat body as the second position, and the alignment area communicates with the positioning area to serve as the first position.
The luminaire of claim 6, wherein the light guiding assembly further comprises a joint, the joint being located when the light guiding assembly is in the first position In the alignment area, when the light guiding component is in the second position, the bonding portion is located in the positioning area.
The luminaire of claim 6, wherein the light source comprises a circuit board and a plurality of light emitting diodes, and the light emitting diodes are annularly arranged on the circuit board.
The luminaire of claim 7, wherein the circuit board has a first joint, the bracket having a second joint, wherein the first joint is located in the second joint.
A luminaire according to any one of claims 1 to 9, wherein the outer surface extends outwardly from the first outer periphery of the first end face to connect to the second end face Second outer periphery.
The luminaire according to any one of claims 1 to 9, wherein the inner surface is expanded inwardly from the first inner circumference of the first end surface to be connected to the second end of the second end surface Inner circumference.
The luminaire of any one of claims 1 to 9, wherein at least one of the inner surface and the outer surface has at least one first expanded segment and at least one second expanded segment, the at least A first expansion segment is coupled to the at least one second expansion segment, and the direction of expansion of the two is different.
The luminaire according to any one of claims 1 to 9, wherein an area of the first end surface is smaller than an area of the second end surface.
The luminaire of any one of claims 1 to 9, wherein the first inner circumference defines a first opening, the second inner circumference defines a second opening, the first opening and the first The two openings communicate with each other, and an area of the first opening is larger than an area of the second opening.
The luminaire of any one of claims 1 to 9, wherein the first inner circumference defines a first opening, the second inner circumference defines a second opening, the first opening is located at the first On one end surface, the second opening is located on the second end surface, and the diameter of the first opening is larger than the diameter of the second opening.
A luminaire according to any one of claims 1 to 9, wherein at least a portion of the outer surface is a curved surface constructed by at least one first contour curve, at least a portion of the inner surface being at least one second The at least one first profile curve and the at least one second profile curve may be the same curve or different curves.
The luminaire according to any one of claims 1 to 9, wherein the second end surface is a curved surface constructed by a third outer shape curve, wherein the third outer contour curve is formed by the second outer peripheral edge The second inner circumference is formed by the connection.