AU2020104275A4

AU2020104275A4 - Optical light distribution module for laser lenses

Info

Publication number: AU2020104275A4
Application number: AU2020104275A
Authority: AU
Inventors: Guangming Shi
Original assignee: Shenzhen Well Done Industrial Co Ltd
Current assignee: Shenzhen Well-Done Industrial Co Ltd
Priority date: 2020-09-27
Filing date: 2020-12-23
Publication date: 2021-03-11
Anticipated expiration: 2028-12-23
Also published as: CN212869650U

Abstract

An optical light distribution module for laser lenses, comprising a laser lighting module and an optical light distribution lens module; the laser lighting module comprises a base panel and a laser light source disposed on the base 5 panel; the optical light distribution lens module is disposed on a light emitting surface of the laser light source so as to achieve optical convergence and optical control of laser beams from the laser light source so as to obtain a required illuminating distance and illuminating area; the optical light distribution lens module comprises at least two optical lenses; a first optical lens of the two optical lenses is 10 disposed on the light emitting surface of the laser light source; a second optical lens of the two optical lenses is disposed away from the light emitting surface of the laser light source; the two optical lenses and the laser light source are arranged coaxially. Compared with the prior art, the present invention disposes the optical light distribution lens module on the light emitting surface of the laser light 15 source to fully utilize the characteristic advantage of high light density of the laser light source, so that the laser light source can be used practically for lighting as a lighting apparatus. The present invention has a simple structure and a low cost. 61 15 3 614 Fig. 1 21 43 6 61 55 43 -3 52 41 61 4 3 42 Fig. 2

Description

15 3

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OPTICAL LIGHT DISTRIBUTION MODULE FOR LASER LENSES BACKGROUND

The present invention relates to a kind of lighting apparatus, and more

specifically relates to an optical light distribution module for laser lenses.

Nowadays, LED light source is generally used as a source of light. Practical

techniques of secondary optical light distribution designs are mostly limited to the

lighting characteristics and light distribution designs pertaining to LED light source.

In the market of lighting apparatus, laser light source is a new trend in the

development of new future light source. Laser light source has the advantage of

achieving high light density which LED cannot achieve. Also, laser light source

requires extremely high precision in light distribution designs and the structures of

optical apparatus and modules. Therefore, there is a desperate need for studying

secondary light distribution designs pertaining to laser light source for the purpose

of practical use.

SUMMARY

An object of the present invention is to provide an optical light distribution

module for laser lenses which has a simple structure. The technical problem to be

solved by the present invention is to control the laser light source by means of

secondary optical light distribution so that the laser light source can be used as a

lighting apparatus.

To solve the above technical problem, the present invention provides the

following technical solutions: An optical light distribution module for laser lenses,

comprising a laser lighting module and an optical light distribution lens module; the

laser lighting module comprises a base panel and a laser light source disposed on the base panel; the optical light distribution lens module is disposed on a light emitting surface of the laser light source so as to achieve optical convergence and optical control of laser beams from the laser light source so as to obtain a required illuminating distance and illuminating area; the optical light distribution lens module comprises at least two optical lenses; a first optical lens of the two optical lenses is disposed on the light emitting surface of the laser light source; a second optical lens of the two optical lenses is disposed away from the light emitting surface of the laser light source; the two optical lenses and the laser light source are arranged coaxially.

Further, the optical light distribution lens module also comprises a lens

supporting rack; the lens supporting rack has a through hole that penetrates

through two opposite end surfaces of the lens supporting rack; two opposite

openings of the through hole are defined as a light exit and a light source

assembling port respectively; the laser light source is positioned inside the through

hole through the light source assembling port; the second optical lens is fixed at

the light exit.

Further, the through hole has a taper shape having a narrowing diameter

from the light exit towards the light source assembling port.

Further, the optical light distribution lens module also comprises a mounting

panel; the lens supporting rack is fixed on the mounting panel.

Further, an end of the lens supporting rack corresponding to the light exit is

provided with a plurality of protruding ribs; a plurality of locking grooves engaged

with the second optical lens are formed between the protruding ribs.

Further, an outer packaging of the laser light source has a square cross

section; four legs are provided around the first optical lens corresponding to four

corners of the outer packaging of the laser light source respectively; four insertion

grooves are provided on the four legs respectively, and the insertion grooves are

engagable with the four corners of the outer packaging of the laser light source

respectively; the first optical lens is tightly fitted into the four corners of the outer

packaging of the laser light source through the insertion grooves, such that the first

optical lens and the laser light source are fixed coaxially.

Compared with the prior art, the present invention disposes the optical light

distribution lens module on the light emitting surface of the laser light source to

fully utilize the characteristic advantage of high light density of the laser light

source, so that the laser light source can be used practically for lighting as a

lighting apparatus. The present invention has a simple structure and a low cost.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 is an external structure view of the present invention.

FIG. 2 is a perspective exploded view of the present invention.

FIG. 3 is a front view of the present invention.

FIG. 4 is a sectional view along A-A shown in FIG. 3.

FIG. 5 shows the first optical lens and the laser light source fixedly

assembled together coaxially.

The present invention will be further described in detail below with

reference to the drawings and an embodiment.

As shown in FIGs. 1-4, an optical light distribution module for laser lenses

according to the present invention comprises a laser lighting module and an optical light distribution lens module. The laser lighting module comprises a base panel 1 and a laser light source 2 disposed on the base panel 1; the optical light distribution lens module is disposed on a light emitting surface of the laser light source 2 so as to achieve optical convergence and optical control of laser beams from the laser light source 2; the optical light distribution lens module comprises at least two optical lenses 4; one of the optical lenses 4 is disposed on the light emitting surface of the laser light source 2; another one of the optical lenses 4 is disposed away from the light emitting surface of the laser light source 2; the two optical lenses 4 and the laser light source 2 are arranged coaxially.

For better understanding, the two optical lenses 4 are defined respectively

as a first optical lens 41 and a second optical lens 42. The optical lens disposed

on the light emitting surface of the laser light source 2 is the first optical lens 41,

while the optical lens disposed away from the light emitting surface of the laser

light source 2 is the second optical lens 42.

As shown in FIG. 4, the optical light distribution lens module also comprises

a lens supporting rack 5; the lens supporting rack 5 has a through hole 51 that

penetrates through two end surfaces of the lens supporting rack 5; two opposite

openings of the through hole 51 are defined as a light exit 52 and a light source

assembling port 53; the laser light source 2 is positioned inside the through hole

51 through the light source assembling port 53; the second optical lens 42 is fixed

at the light exit 52; the first optical lens 41 is fixed on the light emitting surface of

the laser light source 2. Specifically, the lens supporting rack 5 is cylindrical having

the two end surfaces opposite to each other; the through hole 51 penetrates

through the two end surfaces.

As shown in FIG. 4, the through hole 51 according to the present invention

has a taper shape having a narrowing diameter from the light exit 52 towards the

light source assembling port 53, so that laser beams passing through the first

optical lens 41 will not be blocked.

As shown in FIG. 1, FIG. 2 and FIG. 4, the optical light distribution lens

module also comprises a mounting panel 6; the lens supporting rack 5 is fixed on

the mounting panel 6; specifically, the mounting panel 6 has an annular shape;

two opposite ends of the mounting panel 6 is provided with connecting portions 61

respectively; an end of the lens supporting rack 5 corresponding to the light source

assembling port 53 has a recess 54 along a perimeter of the lens supporting rack

5 so as to form a corresponding protrusion 55 on the lens supporting rack 5; the

mounting panel 6 sleeves the protrusion 55 and rests on the recess 54; the

mounting panel and the lens supporting rack are fixed together by screws; the

base panel 1 tightly adheres to the protrusion 55.

As shown in FIG. 1 and FIG. 2, an end of the lens supporting rack 5

corresponding to the light exit 52 is provided with a plurality of protruding ribs 3; a

plurality of locking grooves engaged with the second optical lens 42 are formed

between the protruding ribs; by engaging the second optical lens 42 into the

locking grooves, the second optical lens 42 is fixed on the lens supporting rack 5.

As shown in FIG. 5, an outer packaging of the laser light source 2 has a

square cross section; four legs 43 are provided around the first optical lens 41

corresponding to four corners of the outer packaging of the laser light source 2

respectively; four insertion grooves 44 are provided on the four legs 43

respectively, and the insertion grooves are engagable with the four corners of the outer packaging of the laser light source 2 respectively; the first optical lens 41 is tightly fitted into the four corners of the outer packaging of the laser light source 2 through the insertion grooves 44, such that the first optical lens and the laser light source are fixed coaxially.

The present invention assembles an optical light distribution lens module on

a light emitting surface of the laser light source, and hence the optical light

distribution lens module is configured in accordance with the lighting

characteristics of the laser light source; accordingly, optical control of the laser

light source can be achieved in a way that the required distance and area for

illumination are attained, and thus the present invention can be used as a lighting

apparatus. The major characteristics of the present invention is that the present

invention can be embedded inside a LED lighting apparatus or mounted external

to the LED lighting apparatus to coordinate with the LED light source so as to meet

the need for lighting more ideally. Alternatively, the present invention can be used

independently as a laser lighting apparatus. The present invention has a simple

structure and a low cost.

Claims

Claims The claims defining the invention are as follows:

1. An optical light distribution module for laser lenses, comprising a laser lighting

module and an optical light distribution lens module; the laser lighting module

comprises a base panel (1) and a laser light source (2) disposed on the base

panel (1); the optical light distribution lens module is disposed on a light emitting

surface of the laser light source (2) so as to achieve optical convergence and

optical control of laser beams from the laser light source so as to obtain a required

illuminating distance and illuminating area; the optical light distribution lens module

comprises at least two optical lenses (4); a first optical lens (41) of the two optical

lenses is disposed on the light emitting surface of the laser light source (2); a

second optical lens (42) of the two optical lenses is disposed away from the light

emitting surface of the laser light source (2); the two optical lenses (4) and the

laser light source (2) are arranged coaxially.

2. The optical light distribution module for laser lenses according to claim 1,

wherein the optical light distribution lens module also comprises a lens supporting

rack (5); the lens supporting rack (5) has a through hole (51) that penetrates

through two opposite end surfaces of the lens supporting rack (5); two opposite

openings of the through hole (51) are defined as a light exit (52) and a light source

assembling port (53) respectively; the laser light source (2) is positioned inside the

through hole (51) through the light source assembling port (53); the second optical

lens (42) is fixed at the light exit (52).

3. The optical light distribution module for laser lenses according to claim 2,

wherein the through hole (51) has a taper shape having a narrowing diameter from

the light exit (52) towards the light source assembling port (53).

4. The optical light distribution module for laser lenses according to claim 3,

wherein an end of the lens supporting rack (5) corresponding to the light exit (52)

is provided with a plurality of protruding ribs (3); a plurality of locking grooves

engaged with the second optical lens (42) are formed between the protruding ribs.

5. The optical light distribution module for laser lenses according to any one of

claims 1-4, wherein an outer packaging of the laser light source (2) has a square

cross section; four legs (43) are provided around the first optical lens (41)

corresponding to four corners of the outer packaging of the laser light source (2)

respectively; four insertion grooves (44) are provided on the four legs (43)

respectively, and the insertion grooves are engagable with the four corners of the

outer packaging of the laser light source (2) respectively; the first optical lens (41)

is tightly fitted into the four corners of the outer packaging of the laser light source

(2) through the insertion grooves (44), such that the first optical lens and the laser

light source are fixed coaxially.

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