TWM457133U - Off-axis optical lens, off-axis optical plate and lighting device, illuminating lamp device for outdoors - Google Patents

Description

Off-axis optical lens, off-axis optical lens plate and lighting fixture, outdoor lighting

The present invention relates to an off-axis optical lens, an off-axis optical lens plate and a lighting fixture, and an outdoor lighting fixture, in particular, when the LED group is disposed on an off-axis optical lens, the refraction through the off-axis optical lens can be generated by the light-emitting surface. A rectangular illuminance distribution that deviates from the direction of the LED optical axis.

Referring to Figure 14 for a street light (A) that is generally placed at the edge of the road, a lighting fixture (A1) is attached to a vertical pole (A2). Under the illumination and uniformity required to comply with the international road lighting standard CIE 115-1995, the illuminated area cannot be completely projected onto the road.

Therefore, there is a street lamp (B) as shown in Fig. 15, connecting a lighting fixture (B1) to an extension rod (B2), and then connecting the extension rod (B2) to a vertical pole (B3), through which The bent extension rod (B2) allows the lighting fixture (B1) to extend above the road and project most of the illuminated area onto the road. However, such a street lamp (B) may encounter a disaster such as an earthquake or use for too long, causing the lighting fixture (B1) to loosen, which may cause the lighting fixture (B1) to fall off the road surface to cause a public hazard, or replace the lighting with daily maintenance. When the luminaire (B1) is used, there is a situation that hinders traffic.

Referring to the Republic of China Patent No. M380480 "Asymmetric LED Lens for Street Lamps", a solution is proposed which has a lens body which is formed with a light exiting surface on a periphery of a bottom surface, and a concave surface is formed in the bottom surface. The lens, the lens system is asymmetric to an axial reference line, and is symmetrical to a central short axial reference surface. By arranging the LED illuminator in the cavity, an illuminating region with an offset effect can be provided.

The illuminance distribution generated by the previous case is as shown in the sixth figure of the case, and it is distributed in a concentric state. In this case, the street lamp of the previous case will be obvious whether it is used to illuminate the whole road or to illuminate the unilateral road. The phenomenon of low illumination. For example, when used to illuminate the entire road, the circumference of the road is dark; when used to illuminate a single-sided road, the center of the road is dark.

Based on the above reasons and purposes, the present invention proposes an off-axis optical lens, an off-axis optical lens plate, a lighting fixture, and an outdoor lighting fixture to solve the aforementioned drawbacks.

The off-axis optical lens of the present invention is made of PMMA, PC or glass or other similar transparent material. The off-axis optical lens comprises: a bottom surface on which one X axis and one axis perpendicular to each other are defined Y axis, and the X axis is the width direction of the bottom surface, the Y axis is the narrow direction of the bottom surface, and the direction perpendicular to the bottom surface is defined as a Z axis, and the bottom surface is in the X axis The two ends are a first curved boundary, and the two ends on the Y axis are a second curved boundary, the first curved boundary is smoothly connected with the second curved boundary, and the curvature of the first curved boundary a curvature smaller than the curvature of the second curved boundary; a light-emitting surface protruding from the bottom surface toward the Z-axis, the light-emitting bread having a smooth curved surface connected by the concave-convex, and extending perpendicularly from the smooth curved surface along the Z-axis to the a connecting surface of the bottom surface, the light emitting surface is convex at the two ends along the X-axis and is concave in the center, and the light-emitting surface is convexly smoothed at the Y-axis from the center line toward the both ends An asymmetrical pattern of a decreasing height of the curve; a light entering surface from which the light is emitted toward the Z axis Recessed into the surface of an annular edge formed at the junction of the bottom surface of the edge-to-edge distance in the axial direction Y of the X-axis direction is greater than the distance across the system.

Further, the light-incident surface is an ellipsoidal surface, a curved surface or a paraboloid surface toward the light-emitting surface, and a Y-axis center line of the edge overlaps with a Y-axis center line of the bottom surface, and an X-axis of the edge The center line is offset along the Y-axis, and the direction in which the light-emitting surface gradually descends in the Y-axis and the curvature is larger deviates from the X-axis center line of the bottom surface. This creation is also an off-axis optical lens plate The plurality of off-axis optical lenses are distributed on a connecting plate, and the light emitting surface of the plurality of off-axis optical lenses is located on the upper surface of the connecting plate, and the bottom surface of the plurality of off-axis optical lenses is located on the lower surface of the connecting plate.

The present invention further proposes a lighting fixture and an outdoor lighting fixture using the above-mentioned off-axis optical lens or off-axis optical lens plate. The lighting fixture comprises: a lamp housing; a circuit substrate mounted in the lamp housing, the circuit substrate A plurality of LEDs are disposed on the plurality of off-axis optical lenses such that the light-emitting surface of each off-axis optical lens corresponds to the LED, and the off-axis optical lens is disposed on the circuit substrate.

The lamp housing is connected by a light pole to form the outdoor lighting fixture of the present invention.

Further, the plurality of off-axis optical lenses are distributed on a connecting plate to form an off-axis optical lens plate, and a light-emitting surface of the plurality of off-axis optical lenses is located on an upper surface of the connecting plate, and a bottom surface of the plurality of off-axis optical lenses is located at the connection The surface below the board.

The effect of this creation is:

1. When the LED group is disposed at the light-incident surface of the off-axis optical lens, the illuminance of the off-axis optical lens is transmitted, and the light-emitting surface is distributed with a rectangular illuminance that deviates from the optical axis of the LED, thereby serving as an outdoor lighting device such as a street lamp. When used, it is not necessary to use an extension rod to make the irradiation area face the road surface.

2. The illuminance distribution of the illumination area is in a specific pattern through the off-axis optical lens, and the complementary effect of the street lamps arranged side by side enables a better illumination distribution of the road surface.

3. The off-axis optical lens plate of the present invention has all off-axis optical lenses distributed on a connecting plate. For an illumination lamp having a plurality of LEDs, the off-axis optical lens plate is more convenient to assemble.

(1) ‧‧‧ off-axis optical lens

(11) ‧‧‧ bottom

(111)‧‧‧First curved border

(112) ‧‧‧second curved boundary

(113)‧‧‧ Y-axis centerline of the bottom surface

(114)‧‧‧X-axis centerline of the bottom surface

(12) ‧‧‧Glossy

(121)‧‧‧Smooth surface

(122)‧‧‧ Connection surface

(13) ‧‧‧Glossy

(14) ‧‧‧ edge

(141) ‧‧‧ Y-axis centerline of the edge

(142) ‧‧‧X-axis centerline of the edge

(2)‧‧‧LED

(21) ‧‧‧ optical axis direction

(3)‧‧‧Connecting board

(4) ‧‧‧ lamp housing

(5)‧‧‧ circuit board

(6) ‧‧‧light pole

(A) ‧ ‧ street lights

(A1)‧‧‧Lighting fixtures

(A2) ‧ ‧ vertical pole

(B) ‧ ‧ street lights

(B1)‧‧‧Lighting fixtures

(B2)‧‧‧Extension rod

(B3) ‧ ‧ vertical pole

The first figure is a three-dimensional appearance of the created off-axis optical lens.

The second figure is a top view along the Z-axis in the first figure.

The third figure is a side view along the Y-axis in the first figure.

The fourth figure is a side view along the X-axis in the first figure.

The fifth figure is a schematic diagram of the phenomenon of refraction caused by light passing through an off-axis optical lens.

The sixth figure is a schematic diagram of off-axis illumination of light passing through an off-axis optical lens.

The seventh figure is a graph of light passing through an off-axis optical lens and corresponding positions of illumination at different positions.

The eighth figure is a three-dimensional appearance of the created off-axis optical lens plate.

The ninth drawing is an exploded perspective view of the first embodiment of the present lighting fixture.

The tenth figure is a three-dimensional combination diagram of the first embodiment of the creative lighting fixture.

The eleventh figure is an exploded perspective view of a second embodiment of the present lighting fixture.

The twelfth figure is a three-dimensional combination diagram of the second embodiment of the creation lighting fixture.

The thirteenth figure is a schematic diagram of the illuminated area of the outdoor lighting fixture.

The fourteenth figure is a schematic view of an illuminated area of a conventional street lamp that illuminates the road.

The fifteenth figure is a schematic diagram of a conventionally installed street lamp with an extension pole that illuminates the illuminated area of the road.

The attachment is the illumination distribution of the light passing through the off-axis optical lens.

In combination with the above technical features, the main effects of the present off-axis optical lens, off-axis optical lens plate, illumination lamp, and outdoor lighting fixture will be clearly shown in the following embodiments.

Referring to the first figure, firstly, the off-axis optical lens (1) of the present invention is made of PMMA, PC or glass or other similar transparent material, and the off-axis optical lens (1) includes a bottom surface (11), a light-emitting surface (12) and a light-incident surface (13), wherein: one of the X-axis and one Y-axis perpendicular to each other is defined on the bottom surface (11), and the X-axis is the bottom surface (11) In the width direction, the Y axis is a narrow direction of the bottom surface (11), and a direction perpendicular to the bottom surface (11) is defined as a Z axis. As shown in the second figure, the bottom surface (11) has a first curved boundary (111) at the two ends in the X-axis, and a second curved boundary (112) at the two ends of the Y-axis. The first curved boundary (111) is smoothly connected to the second curved boundary (112), and the curvature of the first curved boundary (111) is smaller than the curvature of the second curved boundary (112).

Referring to the third figure, the light-emitting surface (12) protrudes from the bottom surface (11) toward the Z-axis, and the light-emitting surface (12) includes a smooth curved surface (121) with a concave-convex connection, and the smoothing from the surface The curved surface (121) extends perpendicularly along the Z-axis to the connecting surface (122) of the bottom surface (11), and the light-emitting surface (12) is convex at the two ends along the X-axis and is concave in the center. Further, as shown in the fourth figure, the light-emitting surface (12) is asymmetrical in the Y-axis direction from a non-central line to a convex curved transition height at both ends.

Referring to the first figure, the light-incident surface (13) is recessed by the bottom surface (11) in the Z-axis direction toward the light-emitting surface (12) as an ellipsoid, a curved surface or a paraboloid. As shown in the second figure, the boundary between the light-incident surface (13) and the bottom surface (11) forms an annular edge (14), and the edge (14) is greater than the X-axis at the opposite side of the Y-axis. Toward the edge distance, and the Y-axis centerline (141) of the edge (14) overlaps the Y-axis centerline (113) of the bottom surface (11), the X-axis center of the edge (14) The line (142) is offset along the Y-axis, and the offset direction is as shown in the fourth figure, and the light-emitting surface (12) is gradually descended from the Y-axis and the curvature is larger than the bottom surface. (11) X-axis centerline (114).

Referring to the fifth and sixth figures, an LED (2) is disposed on the lower edge of the light-incident surface (13) of the off-axis optical lens (1), and the light of the LED (2) is driven by the light. Face (13) enters the off-axis optical transmission When the mirror (1) scatters the off-axis optical lens (1) from the light-emitting surface (12), two times of refraction is generated by the phenomenon that light enters different substances to cause refraction, and the LED (2) emits The path of the light passing through the off-axis optical lens (1) is different, so that after the light is scattered by the light exit surface (12), an off-axis illumination asymmetric to the optical axis direction (21) of the LED (2) is formed, and A rectangular illuminance distribution is formed as shown in the attachment. The illuminance values of each position are as shown in the seventh figure, and the illuminance uniformity: min/max = 42%

Min/average = 56%

According to the international road lighting standard CIE 115-1995, the minimum uniformity is 0.4 (minimum/average), so the off-axis optical lens (1) is suitable for outdoor lighting.

As shown in the eighth figure, the present invention is also an off-axis optical lens plate comprising a connecting plate (3) having an upper surface (31) and a lower surface (32); a plurality of off-axis opticals The lens (1) is distributed on the connecting plate (3), and the light emitting surface (12) of the plurality of off-axis optical lenses (1) is located on the upper surface (31) of the connecting plate (3), and the plurality of off-axis optical lenses The bottom surface (11) of (1) is located on the lower surface (32) of the connecting plate (3). The above connecting plate (3) can be made of PMMA, PC or glass or other similar transparent material.

The first embodiment of the present lighting fixture, as shown in the ninth and tenth drawings, comprises: a lamp housing (4); a circuit substrate (5) mounted in the lamp housing (4), the circuit substrate ( 5) a plurality of LEDs (2) are arranged on the upper side; a plurality of off-axis optical lenses (1) are arranged such that the light-incident surface (13) of each off-axis optical lens (1) corresponds to the aforementioned LED (2), and the off-axis is An optical lens (1) is disposed on the circuit substrate (5).

The second embodiment of the present lighting fixture is shown in FIG. 11 and FIG. 12, and the plurality of off-axis optical lenses (1) can be connected by the connecting plate (3) using the off-axis optical lens plate of the present invention. As one, it is more convenient to assemble.

Referring to Figure 13, the light bulb (6) is connected to the lamp housing (3) to form the outdoor lighting fixture of the present invention. Since the light passes through the light-emitting surface (12) of the off-axis optical lens (1) to generate a rectangular illuminance distribution deviating from the optical axis direction of the LED (2), when used as an outdoor lighting device such as a street lamp, it is not necessary to use an extension rod. The illuminated area faces the road surface, which is better in terms of safety or ease of maintenance.

According to the illuminance distribution shown in the attachment, the illumination distribution is more uniform through the complementary effects of the outdoor lighting fixtures arranged side by side.

In view of the above description of the embodiments, the above-described embodiments are merely a preferred embodiment of the present invention, and the implementation of the present invention is not limited thereto. The scope, that is, the simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the creation of the creation, are within the scope of this creation.

(1) ‧‧‧ off-axis optical lens

(11) ‧‧‧ bottom

(12) ‧‧‧Glossy

(121)‧‧‧Smooth surface

(122)‧‧‧ Connection surface

(13) ‧‧‧Glossy

(14) ‧‧‧ edge

Claims (9)

An off-axis optical lens includes: a bottom surface on which one X axis and a Y axis are perpendicular to each other, and the X axis is a width direction of the bottom surface, and the Y axis is the The narrow direction of the bottom surface, the direction perpendicular to the bottom surface is defined as a Z-axis, the bottom surface of the bottom surface is a first curved boundary at the two ends, and the second end of the Y-axis is a second curved shape. a boundary, the first curved boundary is smoothly connected to the second curved boundary, and a curvature of the first curved boundary is smaller than a curvature of the second curved boundary; a light emitting surface is convex from the bottom surface toward the Z-axis The light-emitting surface comprises a smooth curved surface connected by the concave-convex surface, and a connecting surface extending perpendicularly from the smooth curved surface along the Z-axis to the bottom surface, the light-emitting surface being convex and concave at two ends along the X-axis Into the symmetry, and the illuminating surface is asymmetrical in the Y-axis from the non-Y-axis center line toward the two ends with a convex smooth curve descending height; a light-incident surface, the bottom surface is in the Z The axial direction is concave toward the light emitting surface, and the boundary between the light incident surface and the bottom surface forms an annular edge, and the edge is on the Y axis Distance greater than the edge-to-edge distance of the X-axis of the system. The off-axis optical lens according to claim 1, wherein the light incident surface is an ellipsoidal surface, a curved surface or a paraboloid surface toward the light exiting surface. The off-axis optical lens of claim 1, wherein the Y-axis centerline of the edge overlaps the Y-axis centerline of the bottom surface, and the X-axis centerline of the edge is along the The Y-axis is offset, and the direction in which the light-emitting surface gradually descends in the Y-axis direction and the curvature is larger deviates from the X-axis center line of the bottom surface. The off-axis optical lens of claim 1, wherein the off-axis optical lens is one of the following transparent materials: PMMA, PC or glass. A partial optical lens comprising the off-axis optical lens according to any one of claims 1 to 4 The shaft optical lens plate comprises: a connecting plate comprising an upper surface and a lower surface; a plurality of off-axis optical lenses distributed on the connecting plate, wherein a light emitting surface of the plurality of off-axis optical lenses is located on an upper surface of the connecting plate, the plural The bottom surface of the off-axis optical lens is located on the lower surface of the connecting plate. A lighting fixture using the off-axis optical lens according to any one of claims 1 to 4, comprising: a lamp housing; a circuit substrate mounted in the lamp housing, the circuit board is disposed There is a plurality of LEDs; a plurality of off-axis optical lenses, wherein the light-emitting surface of each off-axis optical lens corresponds to the LED, and the off-axis optical lens is disposed on the circuit substrate. The lighting fixture of claim 6, wherein the off-axis optical lens is distributed on a connecting plate, and a light emitting surface of the plurality of off-axis optical lenses is located on an upper surface of the connecting plate, and the plurality of off-axis optical lenses The bottom surface is located on the lower surface of the connecting plate. An outdoor lighting fixture using the off-axis optical lens according to any one of claims 1 to 4, comprising: a lamp housing; a lamp post connecting the lamp housing; and a circuit substrate mounted on the In the lamp housing, the circuit board is provided with a plurality of LEDs; and the plurality of off-axis optical lenses are arranged such that the light-emitting surface of each off-axis optical lens corresponds to the LED, and the off-axis optical lens is disposed on the circuit board. The outdoor lighting fixture of claim 8, wherein the off-axis optical lens is distributed on a connecting plate, and a light emitting surface of the plurality of off-axis optical lenses is located on an upper surface of the connecting plate, and the plurality of off-axis optical lenses The bottom surface is located on the lower surface of the connecting plate.