TWM623648U - Light and optical lens thereof - Google Patents

Abstract

A lamp, comprising at least one light source; and at least one optical lens, the optical lens is slightly cylindrical, the optical lens comprises a light entrance surface, a light exit surface and a side surface, the optical lens defines an optical axis, and the optical axis extends from the light entrance surface To the light-emitting surface, the light-incident surface is used to receive the light emitted by the light source, and the light-emitting surface is used to emit the light emitted by the light source to the outside; wherein, the side has a discontinuous block, and the discontinuous block has a first along the optical axis. A side surface and a second side surface. Between the first side surface and the second side surface, there is a partition segment. The partition segment is used to separate the first side surface and the second side surface, so that the discontinuous block is discontinuous on the optical axis. .

Description

Lamp and its optical lens

This creation is about a lamp and its optical lens, especially at least a part of the side surface of an optical lens, along an optical axis, showing discontinuity.

In order to alert surrounding vehicles and pedestrians when driving, emergency vehicles are equipped with many warning devices. For example, warning lights that provide visual alerts by flashing or illuminating with high intensity.

In order to comply with the regulations of warning lights in various countries, such as ECE (Economic Commission for Europe regulations) standards, SAE (Society of Automotive Engineers standards) standards, CA Title 13 standards (California Title 13 regulation), warning lights need to guide the light emitted by the light source into Lead to a preset light distribution to comply with the above-mentioned warning light regulations.

The main purpose of this creation is to provide a lamp suitable for providing warning flashing lights, comprising: at least one light source; and at least one optical lens, the optical lens is slightly cylindrical, and the optical lens includes a light entrance surface and a light exit surface and a side surface, the optical lens defines an optical axis, the optical axis extends from the light incident surface to the light emitting surface, the light incident surface is used to receive the light emitted by the light source, and the light emitting surface is used to emit light from the light source The light is emitted outward after passing through the optical lens; wherein, the side surface has a discontinuous block, and the discontinuous block has a first side surface along the optical axis and a second side surface, between the first side surface and the second side surface, there is a partition segment, the partition segment is used to separate the first side surface and the second side surface, so that the discontinuous block is in the light Discontinuities appear on the axis.

Another object of the present invention is to provide an optical lens suitable for a warning light to guide light emitted by at least one light source to the outside world. The optical lens is slightly cylindrical and defines an optical axis. The axis extends from the light incident surface to the light emitting surface, and the optical lens comprises: a light incident surface for receiving the light emitted by the light source; a light emitting surface for emitting the light emitted by the light source outward; and A side surface; wherein, the side surface has a discontinuous block, the discontinuous block has a first side surface and a second side surface along the optical axis, and there is a separation section between the first side surface and the second side surface , the separating section is used to separate the first side surface and the second side surface, so that the discontinuous block is discontinuous on the optical axis.

10: Light source

20: Optical lens

21: The first optical lens

22: The second optical lens

200: light incident surface

210: light-emitting surface

220: side

2200: discontinuous block

2202: Consecutive blocks

A: Optical axis

C1: First side

C2: Second side

C3: The third side

O: cut-off surface

S: Separator

S1: first separator

S2: Second divider

FIG. 1 is an exploded schematic diagram of an optical lens and a light source according to a first embodiment of the invention.

FIG. 2 is a schematic diagram of light-emitting of the light source according to the first embodiment of the invention.

FIG. 3 is a schematic bottom view of an optical lens according to a second embodiment of the invention.

FIG. 4 is a schematic diagram of light emission of the light source according to the second embodiment of the invention.

FIG. 5 is a schematic side view of an optical lens according to a third embodiment of the invention.

Please refer to Figure 1 and Figure 2. FIG. 1 is a perspective view of an optical lens according to a first embodiment of the invention. FIG. 2 is a schematic diagram of light-emitting of the light source according to the first embodiment of the invention.

This creation provides a luminaire suitable for providing a warning flashing signal, comprising at least A light source 10 and at least one optical lens 20 . In this embodiment, the lamp is a warning light.

In this embodiment, the light source 10 is a single LED (Light Emitting Diode).

The optical lens 20 has a slightly cylindrical shape. The optical lens 20 includes a light incident surface 200 , a light output surface 210 and a side surface 220 . The light incident surface 200 and the light exit surface 210 are respectively located on opposite sides of the optical lens 20 . The light incident surface 200 is located on the inner surface of a groove of the optical lens 20 . The groove can accommodate the light source 10 . The side surface 220 provides the light emitted by the light source 10 , which is mainly guided to the light emitting surface 210 in the form of total reflection. The optical lens 20 defines an optical axis A. The optical axis A extends from the light incident surface 200 to the light exit surface 210 . The light incident surface 210 is used for receiving the light emitted by the light source 10 . The light emitting surface 210 is used for emitting the light emitted by the light source 10 to the outside. The light emitted from the light source 10, after entering the optical lens 20 from the light incident surface 210, is mainly guided along the optical axis A to the light emitting surface 210, and then exits outward. As shown in FIG. 1 , in this embodiment, the optical axis A is approximately a straight line.

The side surface 220 has a discontinuous block 2200 . The discontinuous block 2200 has a first side C1 and a second side C2 along the optical axis A. As shown in FIG. Between the first side C1 and the second side C2, there is a separation section S, and the separation section S is used to separate the first side C1 and the second side C2, so that the discontinuous block 2200 is located in the A discontinuity is present on the optical axis A. The first side C1 and the second side C2 can be two inclined surfaces with the same slope or different slopes, and can also be two curved surfaces with the same curvature or different curvatures. In this embodiment, the first side C1 and the second side C2 are two curved surfaces with different curvatures. The light source 10 and the first separation segment S1 may be laterally spaced from each other in the lateral direction of the optical lens 20 .

The plane formed by the partition S is approximately perpendicular to the optical axis A. Although in this embodiment, the separation section S is approximately perpendicular to the optical axis A, there is a common Those of ordinary knowledge can freely adjust the included angle between the plane formed by the partition S and the optical axis A according to the user's requirement for the light distribution of the lamp. For example, the plane formed by the separating segment S has an included angle of 30-60 degrees with the optical axis A.

To sum up, in this embodiment, the light emitted by the light source 10 is guided to the predetermined side by the first side C1 and the second side C2 of the discontinuous block 2200 on the side 220 . light distribution.

Please refer to Figure 3 and Figure 4. FIG. 3 is a schematic bottom view of an optical lens according to a second embodiment of the invention. FIG. 4 is a schematic diagram of light emission of the light source according to the second embodiment of the invention.

The main difference between this embodiment and the first embodiment is that the light source 10 is a plurality of LEDs, and the optical lens 20 includes a first optical lens 21 and a second optical lens 22 . The side surface 220 has at least one continuous block 2202 . In addition, as shown in FIG. 3 , the first optical lens 21 and the second optical lens 22 respectively have an elongated optical structure on the light incident surface 200 . Both ends of the elongated optical structure are arc-shaped. In addition, the first optical lens 21 can accommodate a plurality of LEDs, and the second optical lens 22 can also accommodate a plurality of LEDs.

A cut-off surface O is defined between the first optical lens 21 and the second optical lens 22 . The cut-off surface O is parallel to the long axis of the elongated optical structure.

The continuous block 2202 is a curved surface having the same curvature along the optical axis A, or an inclined surface having the same slope.

On the side surface 220, the continuous block 2202 and the discontinuous block 2200 are arranged at intervals.

Specifically, although in this example, the first optical lens 21 and the second optical lens 22 respectively have four continuous blocks 2202 and four discontinuous blocks 2200, however, The number of the continuous blocks 2202 and the discontinuous blocks 2200 and the distribution positions of the continuous blocks 2202 and the discontinuous blocks 2200 can be freely adjusted according to the user's requirement for light distribution of the lamps.

See Figure 5. FIG. 5 is a schematic side view of an optical lens according to a third embodiment of the invention.

The main difference between this embodiment and the first embodiment is that the discontinuous block 2200 along the optical axis A has a third side C3 in addition to the first side C1 and the second side C2, and defines the A first partition S1 is defined between the first side C1 and the second side C2, and a second partition S2 is defined between the second side C2 and the third side C3.

Like the first side C1 and the second side C2 described in the first embodiment, the first side C1 , the second side C2 and the third side C3 in this embodiment can be complex numbers with the same slope or different slopes The inclined surface can also be a complex surface with the same curvature or different curvatures. In this embodiment, the first side C1 , the second side C2 and the third side C3 are complex curved surfaces with different curvatures.

In this embodiment, the third side surface C3 is a curved surface and has a third curvature. The third curvature is different from the first and second curvatures. The light source 10 , the first separation section S1 and the second separation section S2 may be laterally spaced from each other in the lateral direction of the optical lens 20 .

In addition, for the requirements of light distribution of the lamp, a concave-convex optical structure, such as optical stripes, optical dots or optical lattices, can be added to the light-emitting surface 210 .

10: Light source

20: Optical lens

200: light incident surface

210: light-emitting surface

220: side

2200: discontinuous block

A: Optical axis

C1: First side

C2: Second side

S: Separator

Claims (10)

A lamp is suitable for providing warning flashing lights, comprising: at least one light source; and at least one optical lens, the optical lens is slightly cylindrical, the optical lens comprises a light incident surface, a light exit surface and a side surface, the optical lens An optical axis is defined, the optical axis extends from the light incident surface to the light emitting surface, the light incident surface is used to receive the light emitted by the light source, and the light emitting surface is used to emit the light emitted by the light source to the outside; Wherein, the side surface has a discontinuous block, the discontinuous block has a first side surface and a second side surface along the optical axis, and there is a partition section between the first side surface and the second side surface, the partition The segment is used to separate the first side surface and the second side surface, so that the discontinuous block is discontinuous on the optical axis. The lamp as claimed in claim 1, wherein the plane formed by the separation section is approximately perpendicular to the optical axis. The lamp as claimed in claim 1, wherein the optical lens comprises a first optical lens and a second optical lens, and between the first optical lens and the second optical lens, there is a cut-off surface, and the optical axis is parallel the cut-off surface. The lamp of claim 1, wherein the side surface has at least one continuous block, and the continuous block is a curved surface with the same curvature, or an inclined surface with the same slope. The lamp as claimed in claim 4, wherein the continuous block and the discontinuous block are arranged at intervals on the side surface. The lamp as claimed in claim 1, wherein the light incident surface has an elongated optical structure, and both ends of the elongated optical structure are arc-shaped. The lamp as claimed in claim 1, the lamp is a warning light. The lamp as claimed in claim 1, wherein the first side and the second side have the same slope slope or two slopes with different slopes. The lamp as claimed in claim 1, wherein the first side surface and the second side surface are two curved surfaces with the same curvature or different curvatures. An optical lens, suitable for a warning light, is used to guide the light emitted by at least one light source to the outside world, the optical lens is slightly cylindrical, and defines an optical axis, the optical lens comprises: a light incident surface, It is used to receive the light emitted by the light source; a light emitting surface is used to emit the light emitted by the light source to the outside; and a side surface; the optical axis extends from the light incident surface to the light emitting surface, wherein the side surface has A discontinuous block, the discontinuous block has a first side surface and a second side surface along the optical axis, and between the first side surface and the second side surface, there is a separation section, the separation section is used to separate the The first side surface and the second side surface make the discontinuous block appear discontinuous on the optical axis.

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