CN217057193U

CN217057193U - LED optical angle lens

Info

Publication number: CN217057193U
Application number: CN202220517601.XU
Authority: CN
Inventors: 杨健荣
Original assignee: Xiamen Ronghuiyuan Technology Co ltd
Current assignee: Xiamen Ronghuiyuan Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-26
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a LED optical angle lens, which comprises a plate-shaped main body, wherein the plate-shaped main body comprises a first surface and a second surface which are back to back, the middle part of the plate-shaped main body is provided with an optical cover which is formed by the first surface protruding towards the second surface, and an accommodating cavity for accommodating two LED light sources is arranged in the optical cover; the top wall of the accommodating cavity is a light inlet surface, and the outer surface of the optical cover is a light outlet surface; the optical cover comprises two light guide parts and a connecting part, wherein the two light guide parts are symmetrically arranged, the connecting part is used for connecting the two light guide parts, and each light guide part corresponds to one lens position; the light emergent surfaces of the two light guide parts are convex curved surfaces, and the connecting part is a concave curved surface. The LED optical angle lens is used as an assembly lens of an LED light source, is a special lens system of the LED railway signal bulb, organically combines the light-emitting characteristic of the LED light source with the Fresnel lens system of the existing tungsten filament railway signal lamp, reduces the updating cost to the maximum extent, solves the problem of the light focus point of the double-loop structure of the LED railway signal bulb, and greatly improves the lighting effect.

Description

LED optical angle lens

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a LED optics angle lens.

Background

The bulb of the railway signal lamp in the related technology adopts a tungsten filament bulb, the tungsten filament bulb has the defects of high power consumption, low brightness, poor stability and the like, most of the existing illumination is LED light sources, and the LED has the advantages of energy conservation, high brightness and illumination and the like. The lack of a proper lens system is also one of the reasons that the current railway signal lamp can not adopt an LED light source.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, provides a LED optics angle lens.

The utility model provides a technical scheme that its technical problem adopted is: an LED optical angle lens is constructed, and the LED optical angle lens comprises a plate-shaped main body, wherein the plate-shaped main body comprises a first surface and a second surface which are opposite to each other, the middle part of the plate-shaped main body is provided with an optical cover formed by the first surface protruding towards the second surface, an accommodating cavity for accommodating two LED light sources is arranged in the optical cover, and two lens positions are arranged in the accommodating cavity; the top wall of the accommodating cavity is a light inlet surface, and the outer surface of the optical cover is a light outlet surface;

the optical cover comprises two light guide parts which are symmetrically arranged and a connecting part for connecting the two light guide parts, and each light guide part corresponds to one lens position;

the light emitting surfaces of the two light guide parts are convex curved surfaces, and the connecting part is a concave curved surface.

Preferably, the light inlet surface is a spherical surface.

Preferably, the curvatures of the two light guide portions toward the connection portion are gradually reduced.

Preferably, two fixing fastening holes are respectively formed in the two sides of the optical cover of the plate-shaped main body, so that a fastening piece can be inserted in the fixing fastening holes.

Preferably, the length of a line connecting the centers of the two fixing fastening holes is 23.9-24.1 mm.

Preferably, two ends of the plate-shaped main body in the length direction are respectively provided with two covers protruding towards the second surface.

Preferably, the peripheral edge of the plate-like body extends toward the first surface to form an annular peripheral wall.

Preferably, the plate-shaped body has a length of 53.4-53.8 mm.

Preferably, the width of the plate-shaped body is 17.4-17.8 mm.

Preferably, a vertical dimension between a bottom end of the annular peripheral wall and a top end of the optical cover is 6.6-7 mm.

Implement the utility model discloses following beneficial effect has: the utility model discloses a LED optics angle lens is the special lens system of LED railway signal bulb as the assembly lens of LED light source, combines the light-emitting characteristic of LED light source and the fresnel lens system of current tungsten filament railway signal lamp organically, and the at utmost has reduced the cost of renewal, has solved the focus point problem of the light of LED railway signal bulb double loop structure simultaneously to the light efficiency has greatly been improved.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of some embodiments of the present invention showing a structure of an LED optical angle lens at a viewing angle;

fig. 2 is a schematic view of the LED optical angle lens according to some embodiments of the present invention at another viewing angle;

fig. 3 is a side view of some embodiments of the present invention LED optic angle lens;

fig. 4 is a rear view of some embodiments of the present invention LED optical angle lens;

fig. 5 is a top view of some embodiments of the present invention LED optical angle lens;

fig. 6 is a front view of some embodiments of the present invention LED optical angle lens;

FIG. 7 is a cross-sectional view of the LED optical angle lens of FIG. 6 taken along line A-A.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are merely for convenience in describing the present technical solution and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 to 7, an LED optical angle lens according to some embodiments of the present invention includes a plate-shaped main body 1, the plate-shaped main body 1 is substantially a strip-shaped structure, the plate-shaped main body 1 includes a first surface and a second surface opposite to each other, an optical cover 2 formed by protruding the first surface toward the second surface is disposed in the middle of the plate-shaped main body 1, an accommodating cavity a for accommodating at least two LED light sources is disposed in the optical cover 2, and two lens positions are disposed in the accommodating cavity a; the top wall of the accommodating cavity a is a light entrance surface b, that is, the inner surface of the optical cover 2 is a light entrance surface b, and the outer surface of the optical cover 2 is a light exit surface c. Preferably, the light entrance surface b is a spherical surface.

The optical cover 2 includes two light guide portions 21 symmetrically disposed and a connecting portion 22 connecting the two light guide portions 21, each light guide portion 21 corresponds to one lens position, wherein light emitting surfaces c of the two light guide portions 21 are convex curved surfaces, and the connecting portion 22 is a concave curved surface, and further, curvatures of the two light guide portions 21 toward the connecting portion 22 gradually decrease, so that when two LED light sources emit light at different times, light rays at two sides and light rays converging in the middle are uniformly distributed. Preferably, the thicknesses of the two light guide parts 21 are greater than the thickness of the connection part 22. In some embodiments, the optical enclosure 2 is substantially semi-capsule in shape.

In some embodiments, the plate-shaped body 1 is provided with two fastening holes 11 on two sides of the optical cover 2 for fastening a fastener, and preferably, the length of the central connecting line of the two fastening holes 11 is 23.9-24.1 mm. The two fixing fastening holes 11 may be threaded holes, and the fasteners may be bolts or screws, which may fix the LED optical angle lens to the circuit board.

In some embodiments, two covers 12 are respectively protruded from two ends of the plate-shaped main body 1 in the length direction to the second surface, the two covers 12 have a substantially convex shape, and an inner cavity thereof is used for accommodating some structural components. Preferably, as shown in fig. 7, the tops of the two enclosures 12 are lower than the top of the optical enclosure 2.

Preferably, the peripheral edge of the plate-shaped body 1 extends to the first surface to form an annular peripheral wall 13, and a certain gap is left between the bottom wall of the annular peripheral wall 13 and the bottom surface of the plate-shaped body 1 to define a mounting space for accommodating a circuit board, an LED light source and the like. Preferably, the outer side surface of the annular peripheral wall 13 may be an inclined surface.

Preferably, the vertical dimension between the bottom end of the annular peripheral wall 13 to the top end of the optical housing 2 is 6.6-7mm, such as may be set to 6.8 mm.

In some embodiments, the plate-like body 1 may have a length of 53.4-53.8mm, such as 53.6mm, and the plate-like body 1 may have a width of 17.4-17.8mm, such as 17.6 mm.

Understandably, the utility model discloses a LED optics angle lens is the special lens system of LED railway signal bulb as the assembly lens of LED light source, combines the light-emitting characteristic of LED light source and the fresnel lens system of current tungsten filament railway signal lamp organically, and the at utmost has reduced the cost of renewal, has solved the focus point problem of the light of LED railway signal bulb double loop structure simultaneously to the light efficiency has greatly been improved.

It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The LED optical angle lens is characterized by comprising a plate-shaped main body (1), wherein the plate-shaped main body (1) comprises a first surface and a second surface which are opposite to each other, an optical cover (2) is formed in the middle of the plate-shaped main body (1) in a mode that the first surface protrudes towards the second surface, an accommodating cavity (a) for accommodating two LED light sources is formed in the optical cover (2), and two lens positions are arranged in the accommodating cavity (a); the top wall of the accommodating cavity (a) is a light inlet surface (b), and the outer surface of the optical cover (2) is a light outlet surface (c);

the optical cover (2) comprises two light guide parts (21) which are symmetrically arranged and a connecting part (22) for connecting the two light guide parts (21), and each light guide part (21) corresponds to one lens position;

the light emergent surfaces (c) of the two light guide parts (21) are convex curved surfaces, and the connecting part (22) is a concave curved surface.

2. LED optical angle lens according to claim 1, characterized in that the light entry face (b) is spherical.

3. The LED optic angle lens according to claim 1, characterized in that the curvature of the two light guide portions (21) towards the connecting portion (22) is gradually reduced.

4. The LED optical angle lens as claimed in claim 1, characterized in that the plate-like body (1) is provided with two fastening holes (11) on both sides of the optical cover (2) for fastening members to pass through.

5. The LED optical angle lens of claim 4, wherein the length of the line connecting the centers of the two fixing fastening holes (11) is 23.9-24.1 mm.

6. The LED optical angle lens of claim 1, wherein two covers (12) are respectively protruded from the two ends of the plate-shaped body (1) in the length direction to the second surface.

7. LED optical angle lens according to claim 6, characterized in that the peripheral edge of the plate-like body (1) extends towards the first surface forming a ring-shaped peripheral wall (13).

8. LED optical angle lens according to claim 7, characterized in that the length of the plate-like body (1) is 53.4-53.8 mm.

9. LED optical angle lens according to any of claims 6 or 8, characterized in that the width of the plate-like body (1) is 17.4-17.8 mm.

10. The LED optical angle lens of any one of claims 7 or 8, wherein the vertical dimension between the bottom end of the annular peripheral wall (13) to the top end of the optical cover (2) is 6.6-7 mm.