TWM516690U - Optical lens - Google Patents

Description

optical lens

This case relates to an optical lens, in particular, to an optical lens for an LED.

A Light Emitting Diode (LED) is a semiconductor component that converts current into a specific wavelength range. The light-emitting diode is widely used in the field of illumination as a light source because of its high brightness, low operating voltage, low power consumption, easy matching with integrated circuits, simple driving, and long life.

In recent years, the use of LED lighting equipment to replace existing outdoor lighting equipment has gradually become a trend, such as street lamps. However, the light of the LED is emitted only in a specific direction, and does not emit uniform light in all directions. Compared with the existing outdoor lighting equipment that emits light in all directions, the difference in light distribution characteristics between the LED lighting device and the non-LED outdoor lighting device It is very large, so LEDs still have limitations for outdoor lighting.

In order to make better use of the light-emitting diodes, the industry generally optically corrects the light by coating a lens around the LED package to achieve the desired horizontal and vertical beam angles.

How to provide a lens with optical symmetry and a predetermined beam angle is the goal of current research and development by those skilled in the art.

In an embodiment, the present invention provides an optical lens for covering a light emitting unit, the optical lens comprising: a first mirror body, comprising a first light emitting surface, a second light emitting surface, and the first light emitting surface a first light incident surface and a second light incident surface, a third light incident surface opposite to the second light emitting surface, and a first light incident surface, the second light incident surface, and the third light incident surface a bottom surface, the first light incident surface, the second light incident surface, and the third light incident surface are sequentially connected to form a recess for receiving the light emitting unit; the second mirror body is connected to the first a mirror body, comprising: a peripheral surface connecting the second light-emitting surface, a first inner circumferential surface opposite to the peripheral surface, and a non-flat second inner circumferential surface, wherein the first inner circumferential surface and the second inner circumferential surface are connected Forming a cavity, and the first inner peripheral surface connects the bottom surface and the third light incident surface; and the mounting body is wound around and connected to the first mirror body and the second mirror body, and is opposite to the first The mirror body and the second mirror body extend outward.

In the foregoing embodiments, the optical lens comprises a horizontal beam angle of 171.6 degrees ± 10% and a vertical beam angle of 160 degrees ± 10%.

In another embodiment, the present invention provides an optical lens for covering a light emitting unit. The optical lens includes: a first mirror body including a light emitting surface, a first light incident surface opposite to the light emitting surface, and a second a light incident surface and a non-flat third light incident surface, and a bottom surface connected to the first light incident surface, the second light incident surface, and the third light incident surface, the first light incident surface and the second light incident surface The third light incident surface is sequentially connected to form a recess for accommodating the light emitting unit; the second mirror body is connected to the first mirror body, and includes a peripheral surface connecting the light exiting surface and opposite to the periphery First inner circumference and non-flat second inner circumference a first inner circumferential surface and the second inner circumferential surface are connected to form a cavity, and the first inner circumferential surface is connected to the bottom surface; and the mounting body is surrounded and connected to the first mirror body and the first The second mirror body extends outward relative to the first mirror body and the second mirror body.

In another embodiment of the foregoing, the optical lens comprises a horizontal beam angle of 107.9 degrees ± 10% and a vertical beam angle of 152.8 degrees ± 10%.

1, 4‧‧‧ first mirror

10, 40‧‧‧ grooves

11‧‧‧The first glazing

111, 121‧‧‧ Central District

112, 122‧‧‧ both sides

12‧‧‧Second glazing

13‧‧‧ buffer surface

14, 42‧‧‧ first light surface

15, 43‧‧‧ second entrance

16, 44‧‧‧ Third light surface

17, 45‧‧‧ bottom

2, 5‧‧‧ second mirror

20, 50‧‧‧ hole

21, 51‧‧‧ peripheral surface

22, 52‧‧‧ first inner circumference

23, 53‧‧‧ Second inner circumference

231, 232, 531, 532‧ ‧

3, 6‧‧‧Installation

31, 611‧‧‧ first side

32, 612‧‧‧ second side

33, 613‧‧‧ side

34, 614‧‧‧ mounting holes

35, 615‧‧‧ outlet slot

41‧‧‧Glossy

411‧‧‧ flat area

412‧‧‧Arc area

61‧‧‧Installation Department

62‧‧‧Connecting Department

R1, R2, R3, R4, R5, R6, R7, R8, R9, R10‧‧‧ curvature

1 is a perspective view of an optical lens of a first embodiment of the present invention; FIG. 2 is a bottom view of the optical lens of the first embodiment of the present invention; and FIG. 3 is a plan view of the optical lens of the first embodiment of the present invention; 4A is a cross-sectional view of the optical lens of the first embodiment of the present invention taken along line AA of FIG. 3; FIG. 4B is a cross-sectional view of the optical lens of the first embodiment of the present invention taken along line BB of FIG. FIG. 4C is a view showing the curvature of the optical lens of the first embodiment of the present invention; FIG. 5 is a light path diagram of the optical lens of the first embodiment of the present invention; and FIG. 6 is an optical diagram of the first embodiment of the present invention. a light flux distribution diagram of the lens; 7A-7D is a light intensity distribution diagram of the optical lens of the second embodiment of the present invention; FIG. 8 is a perspective view of the optical lens of the second embodiment of the present invention; a bottom view of the optical lens of the second embodiment; 10 is a plan view of the optical lens of the second embodiment of the present invention; FIG. 11A is a cross-sectional view of the optical lens of the second embodiment of the present invention taken along line AA of FIG. 10; 2 is a cross-sectional view taken along line BB of FIG. 10; FIG. 11C is a schematic view showing the curvature of the optical lens of the second embodiment of the present invention; and FIG. 12 is an optical lens of the second embodiment of the present invention. FIG. 13 is a light flux distribution diagram of the optical lens of the second embodiment of the present invention; and FIG. 14A-14D is a light intensity distribution diagram of the optical lens of the first embodiment of the present invention.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate the other advantages and advantages of the present disclosure. It is to be understood that the structure, the proportions, the size and the like of the drawings are only used in conjunction with the disclosure of the specification for the understanding and reading of those skilled in the art, and are not intended to limit the practice of the present invention. The qualifications are not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should not be affected by the effects of the case and the objectives that can be achieved. The technical content can be covered.

First embodiment

1-4C is a perspective view, an elevation view, a top view, an A-A cross-sectional view, a B-B cross-sectional view, and a curvature diagram of the optical lens of the first embodiment of the present invention.

In the embodiment, the optical lens includes a first mirror body 1, a second mirror body 2, and a mounting body 3.

The first mirror body 1 includes a first light-emitting surface 11 , a second light-emitting surface 12 , a buffer surface 13 connecting the first light-emitting surface 11 and the second light-emitting surface 12 , and a first light-incident surface 14 opposite to the first light-emitting surface 11 . The second light incident surface 15 , the third light incident surface 16 opposite to the second light emitting surface 12 , and the bottom surface 17 connected to the first light incident surface 14 , the second light incident surface 15 , and the third light incident surface 16 . The first light incident surface 14 , the second light incident surface 15 , and the third light incident surface 16 are sequentially connected to form a recess 10 for accommodating a light emitting unit (not shown, such as an LED), the recess 10 Positioned in the center of the optical lens, it can accommodate LEDs having a size of about 10.5 mm to 25 mm, and its depth gradually decreases away from the second mirror body 2. In addition, as shown in FIGS. 1 and 4A-4B, the first light-emitting surface 11 has a wave shape in which the side regions 112 are convex and the central portion 111 is concave, and the second light-emitting surface 12 is formed by the two-side regions 122. The central area 121 has a concave wave shape. In general, the first light-emitting surface 11, the second light-emitting surface 12, and the buffer surface 13 and the bottom surface 17 substantially constitute a convex lens having a thickness which gradually decreases toward the second mirror body 2.

The first light exit surface 11 includes a curvature R1 and a curvature R2, the second light exit surface 12 includes a curvature R3, the first light incident surface 14 includes a curvature R4, the second light incident surface 15 includes a curvature R5, and the third light incident surface 16 includes a curvature R6. And R7. The curvature of the light-emitting surface is sequentially R1>R3>R2, and the curved surface is curved. The magnitude of the rate is R5>R4>R7>R6. In one example, the curvature R1 is about 93.2 mm ± 2%, the curvature R2 is about 10.6 mm ± 2%, the curvature R3 is about 13.3 mm ± 2%, the curvature R4 is about 8.4 mm ± 2%, and the curvature R5 is about 20.4 mm ± 2%. The curvature R6 is about 3.2 mm ± 2%, and the curvature R7 is about 7.6 mm ± 2%.

The second mirror body 2 includes a peripheral surface 21 connecting the second light-emitting surface 12, a first inner circumferential surface 22 connected to the peripheral surface 21 and connecting the third light-incident surface 16 and the bottom surface 17, and a non-flat surface with respect to the peripheral surface 21 The second inner peripheral surface 23 of the second inner peripheral surface 22 and the second inner peripheral surface 23 are joined to form a cavity 20, and the depth of the cavity 20 gradually decreases toward the direction away from the first mirror body 1. In one example, the second inner peripheral surface 23 may be formed with a plurality of continuous glass semi-cylinders (shown in a grid in the figure) thereon to make the second inner peripheral surface 23 non-flat. In general, the shape of the second mirror body 2 is similar to a rectangular parallelepiped having an opening, the five faces other than the opening constitute the peripheral surface 21, and the shape of the cavity 20 is similar to a rectangular parallelepiped having an opening, except for the opening In the surface, the bottom surface 231 as the bottom of the cavity 20 and the surface 232 facing the first mirror body 1 constitute the second inner circumferential surface 23, and the remaining three surfaces constitute the first inner circumferential surface 22.

The mounting body 3 surrounds and is connected to the first mirror body 1 and the second mirror body 2, and includes a first surface 31 connected to the first light-emitting surface 11, the second light-emitting surface 12, the buffer surface 13, and the peripheral surface 21, with respect to a first surface 31 and a second surface 32 connecting the bottom surface 17 and the second inner circumferential surface 23, a side surface 33 connecting the first surface 31 and the second surface 32, and a mounting hole 34 formed on the side surface 33 for the screw to pass therethrough The second face 32 is for the wire exit slot 35 through which the wires of the light-emitting unit (LED) pass. The mounting body 3 extends outward relative to the first mirror body 1 and the second mirror body 2 that are connected.

The height of the second mirror body 2 relative to the mounting body 3 is greater than the thickness of the first mirror body 1 and the depth of the cavity 20 is greater than the depth of the groove 10, compared to the first mirror body 1.

Referring to Fig. 5, in order to avoid the complexity of the drawing, Fig. 5 only schematically shows the light path of the optical lens of the present embodiment. For the symbol of the optical lens, please refer to Fig. 1-4C. An illuminating unit (not shown) is disposed in the recess 10, and the light emitted from the illuminating unit enters the first mirror body 1 through the first light incident surface 14, the second light incident surface 15 or the third light incident surface 16 . And then exiting the first mirror body 1 through the first light-emitting surface 11, the second light-emitting surface 12 or the buffer surface 13, and the light is refracted when entering and leaving the first mirror body 1 to substantially circulate from the first mirror body. 1 is emitted away from the second mirror body 2, and therefore, the optical lens of the present embodiment is mainly emitted by the first mirror body 1. Secondly, a very small amount of light may enter the second mirror body 2 via the first mirror body 1. However, the curvature of the peripheral surface 21, the first inner circumferential surface 22 and the second inner circumferential surface 23 of the second mirror body 2 is It is designed such that the light entering the second mirror body 2 is totally reflected and guided into the mounting body 3, so that the light emitted from the first mirror body 1 is not affected. Secondly, the light that has not entered the first mirror body 1 or directly enters the second mirror body 2, but the uneven portion on the second inner peripheral surface 23 of the second mirror body 2 can be incident thereon. The light does not reflect and directly passes through the second mirror body 2, that is, the second mirror body 2 can scatter the light that does not enter the first mirror body 1, so that the first mirror body 1 is not affected. sold out.

Referring to Fig. 6, there is schematically shown a luminous flux distribution diagram of the optical lens of the present embodiment. In this embodiment, the optical lens covering LED is specifically implemented as a street light, and the horizontal axis represents the ratio of the road width where the street light is located to the height of the light. For example, the vertical axis represents the coefficient of utilization, which is the ratio of the flux of light that impinges on the working surface to the total luminous flux of the luminaire. As can be seen from Fig. 6, the luminous flux ratio of the HS (House Side) line is lower than the luminous flux ratio of the SS (Stree Side) line, indicating that the light of the street lamp of the present embodiment is mostly irradiated on the road. Therefore, according to the fifth and sixth figures, the optical lens of the present invention is mainly irradiated on the road side through the first mirror body 1, and the second mirror body 2 can scatter light so as not to be irradiated on the house side.

Referring next to Figures 7A-7D, Figures 7A and 7B show light intensity distributions through vertical planes of horizontal angles of 0°-180° and 180°-0°, contrast to Figure 3, optics The optical axis of the lens is the axis perpendicular to the exit pattern plane, and the vertical plane passing through the horizontal angles of 0°-180° and 180°-0° is the plane cut through the AA hatching. As can be seen from the figures 3 and 7A-7B, the light intensity of the optical lens of the present embodiment is mainly distributed at about 30 degrees from the optical axis, that is, toward the first mirror body 1. In addition, to the third figure, the right end of the AA hatching line passes through the first mirror body 1 as a horizontal angle of 0 degrees, and the left end of the AA hatching line passes through the second mirror body 2 at a horizontal angle of 180 degrees. Figure 7C shows a light intensity distribution through a vertical plane with a horizontal angle of 45° - 225°. Referring again to Fig. 7D, which is a light intensity distribution diagram of a horizontal cone through vertical angle of 60 degrees, the cone formed by the light from the optical lens is at a vertical angle of 60 degrees and a horizontal angle of 90 degrees. There is about a maximum candle light of 767 cd, and it can be seen from Fig. 7D that the light emitted by this embodiment is mainly in the first mirror body 1, especially from the two side regions 112 and 122 of the first mirror body 1.

Figures 1-7D have illustrated the base of the optical lens of the first embodiment of the present invention. According to the structure and the light-emitting or light-distributing diagram, it can be seen from the above that the horizontal angle of the beam of the optical lens of the embodiment can reach 171.6 degrees ± 10%, and the vertical angle of the light beam can reach 160 degrees ± 10%.

Second embodiment

Referring to FIGS. 8-11C, a perspective view, an elevation view, a top view, an A-A cross-sectional view, a B-B cross-sectional view, and a curvature diagram of the optical lens of the second embodiment of the present invention are respectively illustrated.

In the embodiment, the optical lens includes a first mirror body 4, a second mirror body 5, and a mounting body 6.

The first mirror body 4 includes a light-emitting surface 41, a first light-incident surface 42 with respect to the light-emitting surface 41, a second light-incident surface 43 and a non-flat third light-incident surface 44, and a first light-incident surface 42, The bottom surface 45 to which the second light incident surface 43 and the third light incident surface 44 are connected. The first light incident surface 42 , the second light incident surface 43 , and the third light incident surface 44 are sequentially connected to form a recess 40 for accommodating the light emitting unit (not shown, such as an LED) on the bottom surface 45, the recess 40 Positioned in the center of the optical lens, it can accommodate LEDs having a size of about 10.5 mm to 25 mm, and its depth gradually decreases away from the second mirror body 5. In one example, the third light incident surface 44 may be formed with a plurality of continuous glass semi-cylinders (shown in a grid in the figure) thereon to make the third light incident surface 44 non-flat. Further, the light exit surface 41 includes a flat area 411 and a curved surface area 412 around the flat area 411 and connected to the mounting body 3. In general, the light-emitting surface 41 and the bottom surface 45 substantially constitute a convex lens having a thickness which gradually decreases toward the direction away from the second mirror body 5.

The curved surface area 412 of the light exit surface 41 includes a curvature R8, and the first light incident surface 42 The curvature R9 is included, and the second light incident surface 43 includes a curvature R10. The magnitude of the curvature of the light incident surface is R10>R9. In one example, the curvature R8 is about 16.4 mm ± 2%, the curvature R9 is about 16.41 mm ± 2%, and the curvature R10 is about 306.35 mm ± 2%.

The second mirror body 5 includes a peripheral surface 51 connecting the light exit surface 41 and a first inner circumferential surface 52 opposite to the peripheral surface 51 and a non-flat second inner circumferential surface 53, the first inner circumferential surface 52 and the second inner circumference 53 The phases are joined to form a cavity 50 whose depth gradually decreases in a direction away from the first mirror body 4. In one example, the second inner peripheral surface 53 may be formed with a plurality of continuous glass semi-cylinders (shown in a grid in the figure) thereon to make the second inner circumferential surface 53 non-flat. In general, the shape of the second mirror body 5 is similar to a rectangular parallelepiped having an opening, and the five faces other than the opening constitute the peripheral surface 51, and the shape of the cavity 50 is similar to a rectangular parallelepiped having an opening, except for the opening In the surface, the bottom surface 531 as the bottom of the cavity 50 and the surface 532 facing the first mirror body 1 constitute the second inner circumferential surface 53, and the remaining three surfaces constitute the first inner circumferential surface 52.

The mounting body 6 is wound around and connected to the first mirror body 4 and the second mirror body 5, and includes a mounting portion 61 and a connecting portion 62 connecting the mounting portion 61, the first mirror body 4, and the second mirror body 5. The mounting portion 61 includes a first surface 611 connecting the second mirror body 5 and the connecting portion 62, a second surface 612 opposite to the first surface 611 and connected to the bottom surface 45 and the second inner circumferential surface 53, and a first surface 611 and a first surface The side surface 613 of the two sides 612 is formed on the side surface 613 for the screw to pass through the mounting hole 614 and the wire slot 615 formed by the wire for forming the light emitting unit (LED) on the second surface. The mounting body 6 extends outwardly relative to the first mirror body 4 and the second mirror body 5 that are connected.

The height of the second mirror body 5 relative to the mounting body 6 is greater than the thickness of the first mirror body 4, and the depth of the cavity 50 is greater than the depth of the groove 40, compared to the first mirror body 4.

Referring to Fig. 12, in order to avoid the complexity of the drawing, Fig. 12 only schematically shows the light path of the optical lens of the present embodiment. For the symbol of the optical lens, please refer to Fig. 8-11C. A light-emitting unit (not shown) is disposed in the recess 40, and the light emitted from the light-emitting unit enters the first mirror body 4 through the first light-incident surface 42 or the second light-incident surface 43 and exits through the light-emitting surface 41. The first mirror body 4, when entering and leaving the first mirror body 4, refracts light to substantially exit from the first mirror body 4 in a direction away from the second mirror body 5. Therefore, the optical body of the embodiment The lens is mainly emitted by the first mirror body 4. Secondly, a very small amount of light may enter the second mirror body 5 via the third light incident surface 44 of the first mirror body 4. However, the uneven portion of the third light incident surface 44 allows the incident light to be reflected. The second mirror body 5 is directly penetrated, and the curvatures of the peripheral surface 51, the first inner circumferential surface 52 and the second inner circumferential surface 53 of the second mirror body 5 are designed to pass the light entering the second mirror body 5 at Since the second lens 5 is totally reflected in the inside of the second lens 5 and is guided into the mounting body 6, it does not affect the light emitted from the first mirror body 4. Alternatively, the uneven portion on the second inner peripheral surface 53 of the second mirror body 5 can cause the light incident thereon to be directly reflected out of the second mirror body 5 without being reflected, that is, the second mirror body 5 can be The light is scattered, so that the light from the first mirror 5 is not affected.

Referring to Fig. 13, there is schematically shown a luminous flux distribution diagram of the optical lens of the present embodiment. In this embodiment, the optical lens covering LED is specifically implemented as a street light, and the horizontal axis represents the ratio of the road width where the street light is located to the height of the light. For example, the vertical axis represents the coefficient of utilization, which is the ratio of the flux of light that impinges on the working surface to the total luminous flux of the luminaire. As can be seen from Fig. 13, the luminous flux ratio of the HS (House Side) line is lower than the luminous flux ratio of the SS (Stree Side) line, indicating that the light of the street lamp of the present embodiment is mostly irradiated on the road. Therefore, according to the figures 12 and 13, the optical lens of the present invention is mainly irradiated on the road side through the first mirror body, and the second mirror body can scatter light so as to avoid being irradiated on the house side.

Referring next to Figures 14A-14D, Figures 14A and 14B show light intensity distributions through vertical planes of horizontal angles of 0°-180° and 180°-0°, contrast to Figure 10, optics The optical axis of the lens is the axis of the vertical exit pattern plane, and the AA hatching is cut through the vertical planes of the horizontal angles of 0°-180° and 180°-0°. As can be seen from the figures 10 and 14A-14B, the light intensity of the optical lens of the present embodiment is mainly distributed at about 60 degrees from the optical axis, that is, toward the first mirror body 4. In addition, to the 10th figure, the right end of the AA hatching line passes through the first mirror body 4 as a horizontal angle of 0 degrees, and the left end of the AA hatching line passes through the second mirror body 5 at a horizontal angle of 180 degrees. Figure 14C shows the light intensity distribution through a vertical plane with a horizontal angle of 45° - 225°. Referring again to Figure 14D, which is a light intensity distribution diagram of a horizontal cone through vertical angle of 70 degrees, the cone formed by the light from the optical lens is at a vertical angle of 70 degrees and a horizontal angle of 30 degrees. The maximum candle light is about 994 cd, and it can be seen from Fig. 14D that the light emitted by the present embodiment is mainly emitted from the first mirror body 4, especially from the arc surface area 412 of the first mirror body 4.

Figures 8-14D have illustrated the base of the optical lens of the second embodiment of the present invention. According to the structure and the light-emitting or light-distributing diagram, it can be seen from the above that the horizontal angle of the beam of the optical lens of the embodiment can reach 107.9 degrees ± 10%, and the vertical angle of the light beam can reach 152.8 degrees ± 10%.

In summary, the optical lens of each embodiment of the present invention can scatter light to the side of the house, and illuminate the light toward the road side, and the light illuminating the road side is concentrated on both sides with respect to the center, thereby obtaining Large horizontal beam angle.

The above-described embodiments are merely illustrative of the effects of the present invention, and are not intended to limit the scope of the present invention, and those skilled in the art can modify and modify the above-described embodiments without departing from the spirit and scope of the present invention. Moreover, the number of structures in the above-described embodiments is merely illustrative and is not intended to limit the present invention. Therefore, the scope of protection of the rights in this case should be listed in the scope of the patent application mentioned later.

1‧‧‧ first mirror

2‧‧‧Second mirror

3‧‧‧Installation

Claims (10)

An optical lens for covering a light-emitting unit, the optical lens comprising: a first mirror body, comprising a first light-emitting surface, a second light-emitting surface, a first light-incident surface relative to the first light-emitting surface, and a second a first light incident surface, a third light incident surface opposite to the second light emitting surface, and a bottom surface connected to the first light incident surface, the second light incident surface, and the third light incident surface The second light incident surface and the third light incident surface are sequentially connected to form a recess for receiving the light emitting unit on the bottom surface; the second mirror body is connected to the first mirror body, and includes the connection a peripheral surface of the second light exiting surface, a first inner circumferential surface opposite to the outer peripheral surface, and a non-flat second inner circumferential surface, the first inner circumferential surface and the second inner circumferential surface are connected to form a cavity, and the first An inner peripheral surface connecting the bottom surface and the third light incident surface; and a mounting body surrounding and connected to the first mirror body and the second mirror body, and opposite to the first mirror body and the second mirror body Extend outward. The optical lens of claim 1, wherein the first light-emitting surface comprises a first curvature and a second curvature, the second light-emitting surface comprises a third curvature, and the first light-incident surface comprises a fourth curvature, the first The second light entrance surface includes a fifth curvature, the third light incident surface includes a sixth curvature and a seventh curvature; wherein the first curvature is greater than the third curvature, the third curvature is greater than the second curvature, and the fifth The curvature is greater than the fourth curvature, the fourth curvature is greater than the seventh curvature, and the seventh curvature is greater than the sixth curvature; the optical lens comprises a horizontal beam angle of 171.6 degrees ± 10% and Vertical beam angle of 160 degrees ± 10%. The optical lens of claim 1, wherein each of the first light-emitting surface and the second light-emitting surface is convex and has a concave wave shape at the center; wherein the second mirror body is opposite to the The height of the mounting body is greater than the thickness of the first mirror body, and the thickness of the first mirror body gradually decreases away from the second mirror body, and the depth of the cavity is greater than the depth of the groove, the cavity The depth gradually decreases toward a direction away from the first mirror body, and the depth of the groove gradually decreases toward a direction away from the second mirror body. The optical lens of claim 1, wherein the mounting body comprises a first surface connected to the first light emitting surface, the second light emitting surface and the peripheral surface, and the bottom surface and the second inner circumferential surface are connected The second surface, the side surface connecting the first surface and the second surface, the mounting hole formed on the side surface, and the outlet groove formed on the second surface. The optical lens of claim 1, wherein the material of the optical lens comprises glass; wherein the second inner peripheral surface is formed with a plurality of glass semi-cylindrical bodies thereon to cause the second inner circumferential surface Non-flat. An optical lens for covering a light-emitting unit, the optical lens comprising: a first mirror body, comprising a light-emitting surface, a first light-incident surface opposite to the light-emitting surface, a second light-incident surface, and a non-flat third a light incident surface, and a bottom surface connected to the first light incident surface, the second light incident surface, and the third light incident surface, wherein the first light incident surface, the second light incident surface, and the third light incident surface are sequentially connected Forming a recess for receiving the light emitting unit on the bottom surface; the second mirror body is connected to the first mirror body, and includes a peripheral surface connecting the light exiting surface and a first inner circumferential surface opposite to the peripheral surface And a non-flat second inner circumferential surface, the first inner circumferential surface and the second inner circumferential surface are connected to form a cavity, and the first inner circumferential surface is connected to the bottom surface; and the mounting body is surrounded and connected The first mirror body and the second mirror body extend outward relative to the first mirror body and the second mirror body. The optical lens of claim 6, wherein the light exiting surface comprises an eighth curvature, the first light incident surface comprises a ninth curvature, and the second light incident surface comprises a tenth curvature; wherein the tenth curvature is greater than The ninth curvature; the optical lens comprises a horizontal beam angle of 107.9 degrees ± 10% and a vertical beam angle of 152.8 degrees ± 10%. The optical lens of claim 6, wherein the height of the second mirror body relative to the mounting body is greater than the thickness of the first mirror body, and the thickness of the first mirror body is away from the second mirror body. The direction of the hole is gradually reduced, and the depth of the cavity is greater than the depth of the groove, the depth of the hole gradually decreasing toward a direction away from the first mirror body, the depth of the groove being away from the second mirror body The direction is gradually decreasing. The optical lens of claim 6, wherein the mounting body includes a mounting portion and a connecting portion connecting the mounting portion, the first mirror body and the second mirror body, the mounting portion including the connecting portion and the connecting portion a first surface of the peripheral surface connection, a second surface connected to the bottom surface and the second inner circumferential surface, a side surface connecting the first surface and the second surface, and a mounting hole formed on the side surface and formed in the second surface Out of the line slot. The optical lens of claim 6, wherein the optical lens is made of glass; wherein each of the second inner circumferential surface and the third light incident surface is formed with a plurality of glass semi-cylindrical bodies thereon, To cause the second inner peripheral surface and the third light incident surface to be uneven.