CN207501079U - A kind of plurality of LEDs lamp condenser dodging device for stage lamp - Google Patents
A kind of plurality of LEDs lamp condenser dodging device for stage lamp Download PDFInfo
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- CN207501079U CN207501079U CN201721571883.7U CN201721571883U CN207501079U CN 207501079 U CN207501079 U CN 207501079U CN 201721571883 U CN201721571883 U CN 201721571883U CN 207501079 U CN207501079 U CN 207501079U
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Abstract
The utility model discloses a kind of plurality of LEDs lamp condenser dodging device for stage lamp, it includes the LED light source component that light extraction optical path direction sets gradually, collector lens component, closing light lens；The LED light source component includes LED lamp bead and substrate, and LED lamp bead, in regular hexagon array distribution, makes the light that light source is sent out evenly in base plan, reduces light losing, promotes collection efficiency；Collector lens component can improve the uniformity of single beam beam, while promote the hot spot uniformity by beam condenser that LED light source component is launched into collimation uniform beam；After uniform beam after the polymerization passes through closing light lens, multi-beam collimation light beam is focused on the focal point of closing light lens, not only ensure that light efficiency, but also effectively increase the hot spot uniformity.
Description
Technical field
The utility model is related to a kind of plurality of LEDs light supply apparatus for stage lamp, refer in particular to a kind of for stage
The plurality of LEDs lamp condenser dodging device of lamps and lanterns.
Background technology
The light source that the computer pattern lamps and lanterns of stage amusement at present are applied gradually substitutes golden halogen discharging bulb light with LED light source
Source, to improve luminous efficiency of source and the image spots uniformity, enterprise and engineers and technicians use plurality of LEDs and optically focused in succession in the industry
The high power light source module technology of lens, array fly's-eye lens and closing light lens composition, although the LED using the even optical lens of compound eye
The light source module group technology hot spot uniformity >=90%, but light output efficiency is between 70~80%, not ideal enough (LED module light efficiency
=naked smooth the nominal light fluxes of luminous flux/LED exported after light source module group), and the even optical lens number of combinations of optically focused is more, leads
Cause making processing cost excessively high.Optically focused is reduced additionally by use and even optical lens quantity carries out the technical solution of optically focused closing light,
Although cost can be reduced, its hot spot uniformity≤50%, light efficiency highest only can reach 80~85%, still be difficult to meet high-power
The new application demand of LED stage lamps, particularly pattern lamp, thus current stage LED pattern lamp there is an urgent need for a kind of specular removal, compared with
The great power LED module total solution of the high hot spot uniformity.
Utility model content
Technical problem to be solved in the utility model is：Solve the hot spot uniformity of the plurality of LEDs light source of stage lamp
The problem of being difficult to take into account simultaneously with light efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：It provides a kind of for stage lamp
Plurality of LEDs lamp condenser dodging device, it includes light extraction the optical path direction LED light source component, the collector lens group that set gradually
Part, closing light lens；
The LED light source component includes substrate, LED lamp bead, and the LED lamp bead is on substrate in regular hexagon array point
Cloth；
The collector lens component includes first collector lens group, the second optically focused that close LED light source component is set gradually
Lens group；The first collector lens group includes the first lens, and the incidence surface of first lens is concave surface, and light-emitting surface is convex ball
Face；The second collector lens group includes the second lens, and the incidence surfaces of second lens is secondary aspherical, light-emitting surface two
Secondary curved surface；
The closing light lens are biconvex lens, and incidence surface and light-emitting surface are convex spherical.
Preferably, the quantity of the LED lamp bead is no less than 12, single 1~10mm of lamp bead light-emitting area2。
Preferably, first lens are corresponded with the LED lamp bead and are arranged.
Preferably, the incidence surface radius of curvature of first lens is 4.5~10.0mm, and the radius of curvature of light-emitting surface is 2
The distance of~6mm, the first lens and the LED lamp bead is 0.05~0.30mm.
Preferably, the radius of curvature of the incidence surface of second lens is 10~18mm, and the radius of curvature of light-emitting surface is 4.5
~9.0mm.
Preferably, second lens are arranged in a one-to-one correspondence with first lens, the second lens and first lens
Spacing distance be 0.5~1.0mm.
Preferably, the surface coefficients of the incidence surface of second lens are 0.1~0.5mm, and the coefficient of curvature of light-emitting surface is 0
~-1.
Preferably, the incidence surface radius of curvature of the closing light lens is 38~55mm, light extraction curvature radius for 140~
300mm, refractive index are 1.50~1.75, and focal length is 45~75mm, closing light lens and second lens separation distance for 5.5~
12.0mm。
Preferably, the material of the closing light lens is optical refractory glass.
Preferably, the focal plane of the closing light lens be provided with light hole, the light hole a diameter of 22~
30mm, the distance with the closing light lens are 30~75mm.
The utility model includes a kind of plurality of LEDs lamp condenser dodging device for stage lamp, the LED lamp bead
In regular hexagon array distribution in base plan, make the light that light source is sent out evenly, reduce light losing, promote collection light efficiency
Rate；Collector lens component can improve single beam beam by beam condenser that LED light source component is launched into collimation uniform beam
The uniformity, while promote the hot spot uniformity；After uniform beam after the polymerization passes through closing light lens, multi-beam collimation light beam is focused on
To the focal point of closing light lens, the hot spot uniformity is improved while light efficiency is ensured.
Description of the drawings
The concrete structure of the utility model is described in detail below in conjunction with the accompanying drawings
Fig. 1 is a kind of plurality of LEDs lamp condenser dodging device structure diagram for stage lamp of the utility model；
Fig. 2 is the LED light source component structure diagram of the utility model；
Fig. 3 is that the first collector lens group of the utility model arranges schematic diagram；
Fig. 4 is that the second collector lens group of the utility model arranges schematic diagram；
Wherein, 1- substrates, 2-LED lamp beads, 3- first collector lens groups, 4- the second collector lens groups, 5- closing light lens, 6-
Light hole, the first lens of 7-, the second lens of 8-.
Specific embodiment
For the technology contents of the utility model, construction feature, the objects and the effects are described in detail, below in conjunction with implementation
Mode simultaneously coordinates attached drawing to be explained in detail.
It please refers to Fig.1 and Fig. 2, in the utility model embodiment, a kind of plurality of LEDs light source for stage lamp
Optically focused dodging device, it include light extraction optical path direction set gradually LED light source component, collector lens component, closing light lens 5；
The LED light source component includes substrate 1, LED lamp bead 2, and the LED lamp bead 2 is in regular hexagon array on substrate 1
Distribution；
The collector lens component includes first collector lens group 3, the second optically focused that close LED light source component is set gradually
Lens group 4；The first collector lens group 3 includes the first lens 7, and the incidence surface of first lens 7 is concave surface, and light-emitting surface is
Convex spherical；The second collector lens group 4 includes the second lens 8, and the incidence surface of second lens 8 is secondary aspherical, is gone out
Smooth surface is quadratic surface；
The closing light lens 5 are biconvex lens, and incidence surface and light-emitting surface are convex spherical.
In the present embodiment, LED lamp bead 2 is in regular hexagon array distribution, in limited 1 region of substrate, ensures LED lamp bead
While 2 heat dissipation, the LED lamp beads 2 of most quantity can be arranged, the light that the LED lamp bead 2 is sent out, closer to equal in preferable
Even area source reduces light losing to greatest extent, promotes collection efficiency；The multi-beam that LED lamp bead 2 is sent out is saturating by the first optically focused
Microscope group 3 carries out first time optically focused, then after 4 optically focused of the second collector lens group, forms multi-beam collimation uniform beam, the collimated light
Beam focuses on together after closing light lens 5, forms closing light, the first lens 7 enter light concave surface main function and are more effectively to collect
The light that chip is sent out, while certain protective role is played to chip surface layer, 7 light-emitting surface of the first lens is set as spherical surface and acts on
In increase lens strength to promote the spotlight effect of the first lens；Second lens 8 enter light and are set as aspherical with light-emitting surface,
Effect is LED beam angle to further reduce, while also functions to the effect of optimization light refraction angle degree uniform light spots.
Embodiment one
Further, the quantity of the LED lamp bead 2 is no less than 12, and LED lamp bead is not placed in 1 center of substrate
2, single lamp bead 1~10mm of light-emitting area, 1 center of substrate does not place LED lamp bead, can control the uniformity of hot spot, LED
Lamp bead quantity is much more advantageous to mixed light, the light distribution non-uniform phenomenon of single LED light source, can use greater number light source light
Wave interference overlapping is subject to strong and weak complementation and achievees the effect that enhance the even light of mixed light, and 18 number amounts of setting are needed for two hexagonal arrays
Minimum number is that optical system power is difficult to do greatly less than 18 one, second is that will lead to the reduction of the hot spot uniformity.
Embodiment two
Further, the first collector lens group 3 includes multiple first lens 7；First lens 7 and the LED
Lamp bead 2 corresponds arrangement.In the present embodiment, the quantity of the first lens 7 is determined according to the quantity of LED lamp bead 2, per LED lamp
2 front of pearl is corresponding with single first lens 7 and carries out optically focused, the light beam for sending out plurality of LEDs lamp bead 2, by the first lens 7
Afterwards, the light efficiency light beam identical with the hot spot uniformity is obtained.
Embodiment three
Further, the incidence surface radius of curvature of first lens 7 be 4.5~10.0mm, the radius of curvature of light-emitting surface
For 2~6mm, the distance of the first lens 7 and the LED lamp bead 2 is 0.05~0.30mm.In the present embodiment, the first lens 7 enter
The radius of curvature of smooth surface is preferably 5.5mm, and the radius of curvature of light-emitting surface is preferably 2.15mm, it is contemplated that the first lens 7 and LED light
The distance of pearl 2 is too low, is unfavorable for actual installation practice, apart from excessively high, is unfavorable for the collection of light, therefore according to actual conditions need
Suitable spacing is selected between 0.05~0.30mm, the first lens 7 and the second lens 8 collectively constitute an effective focal length
EFFL values are 3.5 optically focused microscope group, and two simple lens range of curvature radius determine the size depending on effective focal length, and this programme gathers
Why light microscopic group effective focal length is set as f3.5, is that beam angle is needed to be gathered between 20 °~30 ° for 120 ° of LED light sources
Low-angle light beam, the smaller ability to light-ray condensing of focal length are stronger.
Example IV
Further, the radius of curvature of the incidence surface of second lens 8 is 10~18mm, and the radius of curvature of light-emitting surface is
4.5~9.0mm.In the present embodiment, 8 incidence surface radius of curvature of the second lens is preferably 12.5mm, and light extraction curvature radius is preferred
For 5.3mm.
Embodiment five
Further, the second collector lens group 4 includes multiple second lens 8；Second lens 8 and described first
Lens 7 are arranged in a one-to-one correspondence, and the spacing distance of the second lens 8 and first lens 7 is 0.5~1.0mm.In the present embodiment,
The quantity of second lens 8 is determined that the spacing of the first lens 7 and the second lens 8 is according to actual installation need by the quantity of the first lens 7
It to be selected in 0.5~1.0mm, the light beam after 7 optically focused of the first lens again passes by 8 optically focused of the second lens, can be effective
Improve the uniformity of single beam.
Embodiment six
Further, the surface coefficients of the incidence surface of second lens 8 be 0.1~0.5mm, the coefficient of curvature of light-emitting surface
It is 0~-1.
Embodiment seven
Further, the incidence surface radius of curvature of the closing light lens 5 is 38~55mm, and light extraction curvature radius is 140
~300mm, refractive index are 1.50~1.75, and focal length is 45~75mm, and closing light lens 5 are with 8 spacing distance of the second lens
5.5~12.0mm.In the present embodiment, the radius of curvature of 5 incidence surface of closing light lens is preferably 42mm, and light extraction curvature radius is preferred
For 150mm, multi-beam collimation light beam can be focused on the focal point of closing light lens 5, complete closing light, closing light lens 5 by closing light lens 5
Effect be adjust closing light lens focal length, while adjust closing light distance size (closing light distance be equal to light beam focus on most bright spot
To the distance of closing light lens light extraction vertex of surface).
Embodiment eight
Further, the material of the closing light lens 5 is optical refractory glass.In the present embodiment, multiple light beams optically focused
After closing light lens 5, more than 200 degrees Celsius, common plastics material is difficult to bear high temperature to cause to melt internal temperature, because
This can cause product normal use using glass as lens.
Embodiment nine
Further, the focal plane of the closing light lens 5 be provided with light hole 6, the light hole 6 a diameter of 22~
30mm, the distance with the closing light lens 5 are 30~75mm.In the present embodiment, 6 position of light hole is for placing imaging object, together
When can block except peripheral spurious rays to improve lens imaging quality and the hot spot uniformity, light hole size determine and focus
It is directly proportional to locate closing light spot size, but closing light hot spot can be less than and remove peripheral spurious rays (it is assumed that closing light maximum hot spot is Φ to keep off
31mm, then light hole can be chosen between 22~Φ of Φ 30mm；Light hole distance is determined to depend on closing light focal length of lens size, be led to
The setting principle of unthreaded hole is must be in former and later two position sections of closing light lens image space focal plane (± 5.0mm), to obtain
Best light spot illumination and the uniformity and image quality.
Following chart is thang-kng hole separation distance, four kinds of light hole size, the hot spot uniformity, light efficiency variable parameters integrate number
Table according to the experiment,
Experimental data is analyzed：It is compared from the practical light efficiency of light hole and the hot spot uniformity, it can be deduced that light hole is in Φ
Chosen between 26~Φ 30mm it is proper, closing light position 37mm~42mm distance ranges choose it is proper, from statistical number
According to can be seen that light hole in the two interval ranges, this system can be exported with specular removal and the hot spot uniformity, can expire completely
The requirement of the high-power stage lamp of foot.
In conclusion a kind of plurality of LEDs lamp condenser dodging device for stage lamp provided by the utility model,
In regular hexagon array distribution on substrate 1, substrate center position does not place LED lamp beads 2, regular hexagon distribution to LED lamp bead 2
Meaning be in limited planar substrates region, ensure heat dissipation while, the LED lamp bead 2 for most quantity of arranging makes more
Uniform area light source of the LED lamp bead 2 of distribution after shining in closer ideal, while light losing is reduced to greatest extent to be promoted
Collection efficiency；Single first lens 7 are corresponding with per 2 front of LED lamp bead and carry out optically focused, and the first lens 7 send out LED lamp bead 2
The light beam that goes out carries out an optically focused, and the second lens 8 obtain collimation uniform beam to the optically focused again of the light beam by the first lens 7,
Closing light lens 5, which focus on multi beam uniform beam, completes closing light at the light hole 6 of image space focal plane.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of plurality of LEDs lamp condenser dodging device for stage lamp, it is characterised in that：It includes light extraction optical path direction
The LED light source component that sets gradually, collector lens component, closing light lens；
The LED light source component includes substrate, LED lamp bead, and the LED lamp bead is in regular hexagon array distribution on substrate；
The collector lens component includes first collector lens group, the second collector lens that close LED light source component is set gradually
Group；The first collector lens group includes the first lens, and the incidence surface of first lens is concave surface, and light-emitting surface is convex spherical；
The second collector lens group includes the second lens, and the incidence surface of second lens is secondary aspherical, and light-emitting surface is secondary
Curved surface；
The closing light lens are biconvex lens, and incidence surface and light-emitting surface are convex spherical.
2. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as described in claim 1, it is characterised in that：
The quantity of the LED lamp bead is no less than 12, single 1~10mm of lamp bead light-emitting area2。
3. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 2, it is characterised in that：
The first collector lens group includes multiple first lens；First lens are corresponded with the LED lamp bead and are arranged.
4. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 3, it is characterised in that：
The incidence surface radius of curvature of first lens is 4.5~10.0mm, and the radius of curvature of light-emitting surface is 2~6mm, the first lens with
The distance of the LED lamp bead is 0.05~0.30mm.
5. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 4, it is characterised in that：
The radius of curvature of the incidence surface of second lens is 10~18mm, and the radius of curvature of light-emitting surface is 4.5~9.0mm.
6. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 5, it is characterised in that：
The second collector lens group includes multiple second lens；Second lens are arranged in a one-to-one correspondence with first lens, the
The spacing distance of two lens and first lens is 0.5~1.0mm.
7. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 6, it is characterised in that：
The surface coefficients of the incidence surface of second lens are 0.1~0.5mm, and the coefficient of curvature of light-emitting surface is 0~-1.
8. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 7, it is characterised in that：
The incidence surface radius of curvature of the closing light lens is 38~55mm, and light extraction curvature radius is 140~300mm, and refractive index is
1.50~1.75, focal length is 45~75mm, and closing light lens are 5.5~12.0mm with second lens separation distance.
9. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 8, it is characterised in that：
The material of the closing light lens is optical refractory glass.
10. a kind of plurality of LEDs lamp condenser dodging device for stage lamp as claimed in claim 9, it is characterised in that：
The focal plane of the closing light lens is provided with light hole, a diameter of 22~30mm of the light hole, with the closing light lens
Distance be 30~75mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721571883.7U CN207501079U (en) | 2017-11-21 | 2017-11-21 | A kind of plurality of LEDs lamp condenser dodging device for stage lamp |
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| CN201721571883.7U CN207501079U (en) | 2017-11-21 | 2017-11-21 | A kind of plurality of LEDs lamp condenser dodging device for stage lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763569A (en) * | 2017-11-21 | 2018-03-06 | 广州达森灯光股份有限公司 | A kind of plurality of LEDs lamp condenser dodging device for stage lamp |
| CN111273382A (en) * | 2020-03-04 | 2020-06-12 | 浙江光珀智能科技有限公司 | Combined micro-lens structure and processing method, light homogenizing device and optical device |
-
2017
- 2017-11-21 CN CN201721571883.7U patent/CN207501079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763569A (en) * | 2017-11-21 | 2018-03-06 | 广州达森灯光股份有限公司 | A kind of plurality of LEDs lamp condenser dodging device for stage lamp |
| CN111273382A (en) * | 2020-03-04 | 2020-06-12 | 浙江光珀智能科技有限公司 | Combined micro-lens structure and processing method, light homogenizing device and optical device |
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