TWI471500B - Secondary optics components - Google Patents

Description

Optical component

The present invention relates to an optical component, particularly an optical component that can uniformly concentrate light.

The optical component can be applied to various fields. When applied to a lighting fixture, the light exiting angle of the light fixture can be adjusted, so that the light fixture has a better light collecting effect. Referring to FIG. 1, the conventional optical component 9 includes a light-emitting element 91, a mirror 92, and a free lens 93. The light-emitting element 91 emits light in a diverging manner. When the light comes into contact with the mirror 92, the mirror 92 can reflect the light to the free lens 93. At this time, the free lens 93 receives the light at the same time. The light reflected by the mirror 92 and the light directly emitted by the light-emitting element 91 are transmitted through the focusing function of the free lens 93 to cause the light to be emitted in a parallel or concentrated state.

The free lens 93 is conventionally a lenticular lens or a plano-convex lens. Although the free lens 93 can appropriately focus the light, the focusing effect is still not satisfactory. Since the light-emitting element 91 emits a plurality of rays in a divergent state, the plurality of light beams each have a different incident angle. To the free lens 93, in particular, the incident angle of the light received by the center of the free lens 93 and the edge has a great difference. When the free lens 93 receives the light with the same curvature, the light cannot be individually directed to the light of different incident angles. The adjustment is such that after the light passes through the free lens 93, the rays cannot be uniformly parallel or concentrated. In view of this, improvements must be made to the disadvantages of conventional optical components.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an optical assembly having refractive surfaces of different curvatures that can be adjusted to a preferred exit direction for light of different angles of incidence.

In order to achieve the above object, an optical component of the present invention comprises: a reflecting member having a transmitting portion and a reflecting surface, the reflecting surface facing the transmitting portion, and the transmitting portion forming a side surface of the reflecting member a transmissive end; a photoelectric element disposed in the transmissive portion; and a refractive concentrating member coupled to the transmissive end, the refractive concentrating member having an opposite inner surface and an outer surface facing the transmissive portion The outer surface has a first refractive area and a second refractive area. The second refractive area is disposed around the first refractive area, and the second refractive area is an annular tapered surface.

In the optical module of the present invention, the first refractive area is an arcuate curved surface.

The optical component of the present invention, wherein the refractive concentrating member has a central axis that passes through the physical center of the refractive concentrating member and the first refractive region simultaneously, and the first refractive region and the second refractive region Intersecting to the central axis has a first length, and the boundary between the first refraction zone and the second refraction zone to the edge of the outer surface has a second length, the ratio of the ratio of the first length to the second length It is 1:0.836~1:0.898.

The optical assembly of the present invention, wherein the refractive concentrating member has a central axis passing through a physical center of the refractive concentrating member and having a horizontal reference surface perpendicular to the central axis, one side surface of the second refractive region There is a first angle with the horizontal reference mask, and the first angle is set at 6.53°~16.53°.

The optical component of the present invention, wherein the inner surface has a third refractive region and a fourth refractive region, the fourth refractive region is disposed around the third refractive region, and the fourth refractive region is an annular cone surface.

The optical component of the present invention, wherein the third refractive zone is a flat surface.

The optical assembly of the present invention, wherein the refractive concentrating member has a central axis that passes through the physical center of the refractive concentrating member and the third refractive region simultaneously, and the third refractive region and the fourth refractive region Intersecting to the central axis has a third length, and the boundary between the third refraction zone and the fourth refraction zone extends to an edge of the inner surface having a fourth length, the ratio of the third length to the fourth length It is 0.035:1~0.287:1.

The optical assembly of the present invention, wherein the refractive concentrating member has a central axis passing through a physical center of the refractive concentrating member and having a horizontal reference surface perpendicular to the central axis, one side surface of the fourth refractive region There is a second angle with the horizontal reference mask, and the second angle is set at 1.26 ° to 11.26 °.

In the optical assembly of the present invention, the refractive concentrating member has a side wall disposed between the inner surface and the outer surface, and the side wall is tapered from the outer surface toward the inner surface.

The optical assembly of the present invention, wherein the refractive concentrating member has a central axis passing through a physical center of the refracting concentrating member and having a horizontal reference surface perpendicular to the central axis, the surface of the side wall and the horizontal reference surface There is a third angle, and the third angle is set at 84.5 ° ~ 72.5 °.

In the optical assembly of the present invention, the transmissive portion is configured to allow a light to travel, and the transmissive end serves as the light exiting an exit end of the reflective member.

In the optical component of the present invention, the reflecting surface of the reflecting member is a parabolic curved surface and has a parabolic curved surface focus in the transmitting portion.

The optical component of the present invention, wherein the photovoltaic component is disposed on a parabolic curved surface of the reflective surface.

The above and other objects, features and advantages of the present invention will become more <RTIgt; A preferred embodiment of the optical component of the present invention comprises a reflective member 1, an optoelectronic component 2 and a refractive concentrating member 3. The optoelectronic component 2 is disposed in the reflector 1 , and the refracting concentrating component 3 is disposed at one end of the reflector 1 .

The reflector 1 has a transmissive portion 11 and a reflective surface 12. The transmissive portion 11 is for allowing a light to travel. The reflecting surface 12 faces the transmitting portion 11 and can receive the light that passes through the transmitting portion 11 and reflects the light back to the transmitting portion 11 to change the traveling direction of the light in the transmitting portion 11. The transmitting portion 11 forms a transmissive end 13 on one side surface of the reflecting member 1 to pass through the exit end of the reflecting member 1 as the light. The shape of the reflective surface 12 is not limited herein, and is preferably a parabolic curved surface, and has a parabolic curved surface focus in the transmissive portion 11, and the reflected light can be reflected by the parabolic curved surface. The reflection of the face 12 is directed parallel to the transmission end 13.

The photovoltaic module 2 is disposed in the transmissive portion 1. The type of the optoelectronic component 2 is not limited herein and may depend on the application of the optical component of the present invention. When applied to a lighting device, the optoelectronic component 2 can be a light emitting component such as an LED; when applied to a light collecting device, the optoelectronic component 2 can be a photoelectric conversion component such as a solar cell. In this embodiment, the photovoltaic element functions as the light-emitting element and emits a plurality of light rays. The optoelectronic component 2 is preferably disposed at a parabolic curved surface of the reflective surface 12. When the optoelectronic component 2 emits a plurality of rays in a diverging pattern, the number of rays can be reflected by the parabolic surface of the reflective surface 12 toward the transmission. The end 13 emits light in parallel.

Referring to FIGS. 2 and 3, the refracting concentrating member 3 is composed of a light transmissive material and is coupled to the transmitting end 13 of the reflecting member 1. The refractive concentrating member 3 has an outer surface 31 and an inner surface 32 opposite to each other and has a side wall 33.

The outer surface 31 has a first refractive area 311 and a second refractive area 312. The first refraction zone 311 is located at the center of the outer surface 31 and is an arcuate curved surface. The curved surface can adjust the direction of travel of the light for the light emitted directly from the photoelectric element 2 toward the first refraction zone 311. The second refractive region 312 is disposed around the first refractive region 311, and the second refractive region 312 extends from the edge of the outer surface 31 to the first refractive region 311 to form an annular tapered surface. The annular tapered surface can adjust the direction of travel of the light for the light that is reflected by the reflective surface 12 toward the second refractive region 312 and the light that is emitted directly from the photovoltaic element 2 toward the second refractive region 312.

The refracting concentrating member 3 has a central axis S, and the central axis S passes through the physical center of the refracting concentrating member 3 and the first refracting region 311 simultaneously, and a horizontal reference surface H is perpendicular to the center. Axis S. The boundary between the first refractive region 311 and the second refractive region 312 to the central axis S has a first length L1, and the boundary between the first refractive region 311 and the second refractive region 312 to the outer surface 31 The edge has a second length L2, and the ratio of the first length L1 to the second length L2 ranges from 1:0.836 to 1:0.898, preferably in the embodiment: 1:0.875, in order to achieve better. Concentrating effect. In addition, a side surface of the second refraction area 312 has a first angle θ1 with the horizontal reference plane H, and the first angle θ1 can be set in the range of 6.53° to 16.53°, preferably as in this embodiment. It is 11.03°~12.03° in order to achieve better concentrating effect.

The inner surface 32 faces the transmissive portion 11 and has a third refraction zone 321 and a fourth refraction zone 322. The third refraction zone 321 is located at the center of the inner surface 32 and is a plane. The third refraction zone 321 can be used to illuminate the light emitted directly from the optoelectronic component 2 toward the third refraction zone 321 . Adjustment. The fourth refraction zone 322 is disposed around the third refraction zone 321 , and the fourth refraction zone 322 extends from the edge of the inner surface 32 to the third refraction zone 321 to form an annular tapered surface. The annular tapered surface can illuminate the light passing through the reflective surface 12 toward the fourth refractive region 322 and the light emitted directly from the photoelectric element 2 toward the fourth refractive region 322 to collect the light exiting direction. Adjustment.

The central axis S of the refracting concentrating member 3 passes through the physical center of the refracting concentrating member 3 and the third refracting region 321. The boundary between the third refractive region 321 and the fourth refractive region 322 to the central axis S has a third length L3, and the boundary between the third refractive region 321 and the fourth refractive region 322 extends to the inner surface 32. The edge has a fourth length L4, and the ratio of the third length L3 to the fourth length L4 ranges from 0.035:1 to 0.287:1, preferably 0.18:1 as in the embodiment, in order to achieve better convergence. Light effect. In addition, a side surface of the fourth refraction area 322 has a second angle θ2 with the horizontal reference plane H, and the second angle θ2 can be set in the range of 1.26° to 11.26°, preferably as in this embodiment. It is 5.763°~6.7636° in order to achieve better concentrating effect.

The side wall 33 is disposed between the outer surface 31 and the inner surface 32. In the embodiment, the side wall 33 is tapered from the outer surface 31 toward the inner surface 32, and the surface of the side wall 33 and the horizontal reference surface H has a third angle θ3, so that the light originally emitted by the photoelectric module 2 and advancing toward the side wall 33 can be reflected by the surface of the side wall 33 as parallel light, and the third angle θ3 can be set at 84.5. °~72.5°, preferably as in the present embodiment, from 79.19° to 78.19°, to achieve a better concentrating effect.

More specifically, when the optoelectronic component 2 emits a plurality of rays in a divergent manner, the plurality of rays may include light directly incident on the inner surface 32 of the refractive concentrating member 3, and are directed toward the reflective surface 12 and reflected thereto. The light of the inner surface 32 of the concentrating member 3 is refracted. The inner surface 32 of the refracting concentrating member 3 can provide a first light exiting direction adjustment of the plurality of light rays before the transmitting end 13 , wherein the third refracting region 321 can be adjusted and directly emitted by the photovoltaic module 2 to the third The direction of light travel of the refraction zone 321 is adjustable by the light emitted directly from the optoelectronic component 2 to the fourth refraction zone 322, and the direction of travel of the light reflected from the reflective surface 12.

After the light passes through the inner surface 32 of the refracting concentrating member 3, it passes through the outer surface 31 of the refracting concentrating member 3 to perform the second light-emitting direction adjustment. The first refraction area 311 can be adjusted for the light traveling direction directly from the optoelectronic component 2 toward the first refraction area 311, and the second refraction area 312 can be reflected toward the reflection surface 12 The light that is advanced by the second refraction zone 312 and the light that is emitted directly from the photo-electric element 2 toward the second refraction zone 312 are adjusted for light travel. In addition, the side wall 33 can also reflect the light directly emitted from the optoelectronic component 2 to the side wall 33, and adjust the light to be parallel or gather light, so that the refracting concentrating member 3 has a better concentrating effect.

In the optical component of the present invention, both the inner surface and the outer surface have two different curved surfaces, which can be adjusted for different incident angles, and can have better effect of adjusting the direction of light travel.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . Reflector

11. . . Transmissive part

12. . . Reflective surface

13. . . Transmissive end

2. . . Optoelectronic component

3. . . Refractive concentrator

31. . . The outer surface

311. . . First refraction zone

312. . . Second refraction zone

32. . . The inner surface

321. . . Third refraction zone

322. . . Fourth refraction zone

33. . . Side wall

Θ1. . . First angle

Θ2. . . Second angle

Θ3. . . Third angle

L1. . . First length

L2. . . Second length

L3. . . Third length

L4. . . Fourth length

S. . . The central axis

H. . . Horizontal reference plane

[知知]

9. . . Optical component

91. . . Light-emitting element

92. . . Reflector

93. . . Free lens

Figure 1: Side view of a conventional optical component.

Figure 2: Side view of the optical assembly of the present invention.

Figure 3 is a structural view of a refractive concentrating member of the optical component of the present invention.

Figure 4 is a partial enlarged view of a refractive concentrating member of the optical component of the present invention.

1. . . Reflector

11. . . Transmissive part

12. . . Reflective surface

13. . . Transmissive end

2. . . Optoelectronic component

3. . . Refractive concentrator

31. . . The outer surface

311. . . First refraction zone

312. . . Second refraction zone

32. . . The inner surface

321. . . Third refraction zone

322. . . Fourth refraction zone

33. . . Side wall

L1. . . First length

L2. . . Second length

L3. . . Third length

L4. . . Fourth length

S. . . The central axis

H. . . Horizontal reference plane

Claims (13)

An optical component comprising: a reflective member having a transmissive portion and a reflective surface, the reflective surface facing the transmissive portion, and the transmissive portion forming a transmissive end on a side surface of the reflective member; In the transmissive portion; and a refractive concentrating member coupled to the transmissive end, the refracting concentrating member has an inner surface and an outer surface disposed opposite to each other, the inner surface facing the transmissive portion, the outer surface having a first a refractive region and a second refractive region are disposed around the first refractive region, and the second refractive region is an annular tapered surface. The optical component of claim 1, wherein the first refractive zone is an arcuate curved surface. The optical assembly of claim 1, wherein the refractive concentrating member has a central axis that passes through the refracting concentrating member and a physical center of the first refractive region, and the first refraction a boundary between the region and the second refractive region to the central axis has a first length, and a boundary between the first refractive region and the second refractive region to an edge of the outer surface has a second length, the first length The ratio to the second length ranges from 1:0.836 to 1:0.898. The optical component of claim 1, wherein the refractive concentrating member has a central axis passing through a physical center of the refractive concentrating member and having a horizontal reference surface perpendicular to the central axis, the first One side surface of the two refraction zone has a first angle with the horizontal reference mask, and the first angle is set at 6.53 ° to 16.53 °. The optical component of claim 1, wherein the inner surface has a third refractive area and a fourth refractive area, the fourth refractive area is disposed around the third refractive area, and the fourth The refractive area is an annular tapered surface. The optical component of claim 5, wherein the third refractive zone is a flat surface. The optical assembly of claim 5, wherein the refractive concentrating member has a central axis that passes through the physical center of the refractive concentrating member and the third refractive region simultaneously by the third refraction a boundary between the region and the fourth refractive region to the central axis has a third length, and a boundary extending from the boundary between the third refractive region and the fourth refractive region to the edge of the inner surface has a fourth length, the third length The ratio to the fourth length ranges from 0.035:1 to 0.287:1. The optical assembly of claim 5, wherein the refractive concentrating member has a central axis passing through a physical center of the refractive concentrating member and having a horizontal reference surface perpendicular to the central axis, the first One side surface of the four refraction zone has a second angle with the horizontal reference mask, and the second angle is set at 1.26° to 11.26°. The optical assembly of claim 1, wherein the refractive concentrating member has a side wall disposed between the inner surface and the outer surface, and the side wall is tapered from the outer surface toward the inner surface. The optical assembly of claim 9, wherein the refractive concentrating member has a central axis passing through a physical center of the refractive concentrating member and having a horizontal reference surface perpendicular to the central axis, the side wall The surface has a third angle with the horizontal reference mask, and the third angle is set at 84.5°-72.5°. The optical component of claim 1, wherein the transmissive portion is configured to allow a light to travel, and the transmissive end serves as the light exiting an exit end of the reflective member. The optical component of claim 1, wherein the reflecting surface of the reflecting member is a parabolic curved surface and has a parabolic curved surface in the transmitting portion. The optical component of claim 12, wherein the optoelectronic component is disposed at a parabolic curved surface of the reflective surface.