TWI534477B - Optical device - Google Patents

Description

Optical structure

The invention relates to an optical structure for adjusting the angle and density of a light beam, in addition to improving the structure of the conventional optical structure, to achieve higher light extraction efficiency and a smaller half-light intensity angle, and also to change the convergence of light. The degree of light effectively controls the angle of light to make the beam shrink or enlarge more evenly.

According to the general optical structure, in order to achieve the effect of the present invention, a large optical structure is often used to achieve a small angle of light exiting angle. In addition to being bulky, the material cost cannot be effectively reduced, and the overall lighting device is also changed. Big and cumbersome.

The main object of the present invention is to improve the structure of the conventional optical structure to achieve higher light extraction efficiency and a smaller half-light intensity angle, and also to change the degree of light collection, effectively control the light angle, and make the light beam more evenly reduced. Or zoom in.

In order to achieve the above object, the present invention is an optical structure having a bottom surface, a first incident surface/first refractive surface and a second incident surface/second refractive surface disposed on the bottom surface, and a bottom surface disposed on the bottom surface a control surface at a corresponding position above and a first exit surface/third refraction surface and a third exit surface/fifth refraction surface extending upward from a bottom of the control surface, and a second exit surface connected to the control surface a four refractive surface, and a reflective surface connected to the bottom surface and the second exit surface/fourth refractive surface.

In an embodiment of the invention, the optical structure is a light transmissive material such as plastic or glass.

In an embodiment of the invention, the reflecting surface is at least a straight line or a curve calculated according to a calculation by Snell's Law, and the light is totally reflected and then advanced to the second exit surface/fourth refractive surface.

In an embodiment of the invention, the first incident surface/first refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the second incident surface/second refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the first exit surface/third refraction surface may have a surface microstructure such as a polished, atomized, beaded or scale structure.

In an embodiment of the invention, the second exit surface/fourth refraction surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the third exit surface/fifth refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the reflective surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the control surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

In an embodiment of the invention, the optical structure may be further provided A fixing device is used to connect and fix the reflective surface and the second exit surface/fourth refractive surface.

1‧‧‧Optical structure

11‧‧‧ bottom

111‧‧‧First incident surface/first refractive surface

112‧‧‧second incident surface/second refractive surface

12‧‧‧reflecting surface

13‧‧‧First exit surface/third refractive surface

14‧‧‧Second exit/fourth refraction surface

15‧‧‧ Third exit surface/fifth refraction surface

16‧‧‧Control surface

17‧‧‧Fixed devices

18‧‧‧Light source

Fig. 1 is a schematic view showing the appearance of an optical structure according to a first embodiment of the present invention.

Fig. 2 is a schematic view showing the appearance of an optical structure according to a second embodiment of the present invention.

Figure 3 is a schematic view showing the implementation of the optical structure of the present invention.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , FIG. 1 is a schematic view showing the appearance of an optical structure according to a first embodiment of the present invention; and FIG. 2 is a schematic view showing the appearance of an optical structure according to a second embodiment of the present invention; Figure 3 is a schematic illustration of the implementation of the optical structure of the present invention.

1 is a schematic view showing the appearance of an optical structure according to a first embodiment of the present invention. The present invention is an optical structure 1 having a bottom surface 11 , a first incident surface/first refractive surface 111 and a second incident surface/second refractive surface 112 disposed on the bottom surface, and a correspondingly disposed above the bottom surface. a control surface 16 of the position and a first exit surface/third refraction surface 13 and a third exit surface/fifth refraction surface 15 extending upward from the bottom of the control surface 16, and a second exit surface connected to the control surface 16 The fourth refractive surface 14 and a reflective surface 12 connected to the bottom surface 11 and the second exit surface/fourth refractive surface 14. The optical structure 1 is made of a light transmissive material such as plastic or glass. The reflecting surface 12 is at least a straight line or a curve calculated according to the calculation of Snell's Law, and the light is totally reflected. The second exit surface/fourth refraction surface 14 advances. In addition, the first incident surface/first refractive surface 111, the second incident surface/second refractive surface 112, the first exit surface/third refractive surface 13, the second exit surface/fourth refractive surface 14, The third exit surface/fifth refractive surface 15, the reflective surface 12 and the control surface 16 may have a surface microstructure such as a polished, atomized, beaded or scaled structure.

2 is a schematic view showing the appearance of an optical structure according to a second embodiment of the present invention. The difference from the first embodiment is that the optical structure 1 can be further provided with a fixing device 17 for connecting and fixing the total emitting surface 12 and the second emitting surface/fourth refractive surface 14.

Please refer to FIG. 3, which is a schematic diagram of the implementation of the first embodiment of the optical structure of the present invention. When the light source 18 enters from the first incident surface/first refractive surface 111 and the second incident surface/second refractive surface 112 of the bottom surface 11, the main effective light path has three: one, the light passes through the first incident surface/the first a refractive surface 111 is refracted to the third exit surface/fifth refractive surface 15; secondly, light is refracted through the second incident surface/second refractive surface 112 to the first exit surface/third refractive surface 13 After the control surface 16 is refracted, the reflective surface 12 is reflected to the second exit surface/fourth refractive surface 14 and then emitted; third, the light is refracted to the reflective surface 12 via the second incident surface/second refractive surface 112. After being reflected to the second exit surface/fourth refraction surface 14, it is emitted.

In summary, the optical structure of the present invention can not only improve the structure of the conventional optical structure, but also achieve higher light extraction efficiency and a smaller half-light intensity angle, and can also change the degree of light collection, thereby effectively controlling the light angle. The beam is more evenly shrunk or The enlargement, in order to make the invention more progressive, more practical, and more in line with the needs of the consumer, has indeed met the requirements of the invention patent application, and filed a patent application according to law.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto; therefore, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All should remain within the scope of the invention patent.

1‧‧‧Optical structure

11‧‧‧ bottom

111‧‧‧First incident surface/first refractive surface

112‧‧‧second incident surface/second refractive surface

12‧‧‧reflecting surface

13‧‧‧First exit surface/third refractive surface

14‧‧‧Second exit/fourth refraction surface

15‧‧‧ Third exit surface/fifth refraction surface

16‧‧‧Control surface

Claims (10)

An optical structure having a bottom surface, a first incident surface/first refractive surface and a second incident surface/second refractive surface; a control surface disposed at a corresponding position above the bottom surface; a first exit surface a third refractive surface extending upward from the bottom of the control surface; a third exit surface/fifth refractive surface for connecting the first exit surface/third refractive surface; and a second exit surface/fourth refractive surface And a reflective surface for connecting the bottom surface and the second exit surface/fourth refractive surface; wherein the first incident surface/first refractive surface refracts a first light to the first a third exit surface/fifth refractive surface, the third exit surface/fifth refractive surface refracting the first light from the first incident surface/first refractive surface, such that the first light penetrates the third exit surface/ a fifth refractive surface; the second incident surface/second refractive surface refracts a second light to the first exit surface/third refractive surface, the first exit surface/third refractive surface will come from the second incident surface/ The second light of the second refractive surface is refracted to the control surface, the control surface will be from the first The second light of the exit surface/third refractive surface is refracted to the reflective surface, the reflective surface reflects the second light from the control surface to the second exit surface/fourth refractive surface, the second exit surface The fourth refractive surface refracts the second light reflected from the reflective surface, and the second light penetrates the second exit surface/fourth refractive surface; the second The incident surface/second refractive surface refracts a third light to the reflective surface, the reflective surface reflects the third light from the second incident surface/second refractive surface to the second exit surface/fourth refractive surface, The second exit surface/fourth refractive surface refracts the third light from the reflective surface, and the third light penetrates the second exit surface/fourth refractive surface; wherein the optical structure is permeable to light Material. The optical structure according to claim 1, wherein the optical structure is made of plastic or glass. The optical structure of claim 1, wherein the first incident surface/first refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure of claim 1, wherein the second incident surface/second refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure of claim 1, wherein the first exit surface/third refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure of claim 1, wherein the second exit surface/fourth refractive surface may have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure according to claim 1, wherein the third exit surface/fifth refractive surface may have a surface microstructure such as a polishing, atomization, bead or scale knot. Structure. The optical structure of claim 1, wherein the reflective surface can have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure of claim 1, wherein the control surface can have a surface microstructure such as a polished, atomized, beaded or scaled structure. The optical structure of claim 1, wherein the optical structure is further provided with a fixing device for connecting and fixing the reflecting surface and the second emitting surface/fourth refractive surface.