CN-122028575-A - LED light source system

CN122028575ACN 122028575 ACN122028575 ACN 122028575ACN-122028575-A

Abstract

The invention discloses an LED light source system, which comprises a light source substrate, a plurality of LED luminous bodies arranged in an array on the light source substrate, a collimating lens component and a light-emitting lens, wherein the collimating lens component and the light-emitting lens are arranged in the light-emitting direction of the LED luminous bodies, more than 50% of the LED luminous bodies are partitioned LED units with partitioned light-emitting surfaces, the partitioned LED units comprise a light-emitting area and an electrode group, the light-emitting area at least comprises a first light-emitting area and a second light-emitting area which is arranged around the first light-emitting area, the electrode group is positioned on the side of the light-emitting surface of the light-emitting area, the electrode group comprises a first electrode group for controlling the first light-emitting area and a second electrode group for controlling the second light-emitting area, the first electrode groups are connected in series, and the second electrode groups are connected in series. The LED light source system can realize the adjustment of the uniformity of light spots under the condition that the total power and the total light output are basically unchanged, so that the light spots with various light intensity distributions can be emitted according to actual needs.

Inventors

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Assignees

广州光联电子科技有限公司

Dates

Publication Date: 20260512
Application Date: 20241202
Priority Date: 20241107

Claims (15)

1. The LED light source system comprises a light source substrate, a plurality of LED luminous bodies arranged in an array on the light source substrate, a collimating lens component and a light-emitting lens, wherein the collimating lens component and the light-emitting lens are arranged in the light-emitting direction of the LED luminous bodies, and the LED light source system is characterized in that more than 50% of the LED luminous bodies are partition type LED units with partitioned light-emitting surfaces, each partition type LED unit comprises a light-emitting area and an electrode group, each light-emitting area at least comprises a first light-emitting area and a second light-emitting area which is arranged around the first light-emitting area, the bottom of each partition type LED unit is a substrate, the first light-emitting area and the second light-emitting area share the same substrate, the electrode group is located on the side of the light-emitting surface of each light-emitting area, each electrode group at least comprises a first electrode group for controlling the first light-emitting area and a second electrode group for controlling the second light-emitting area, and a plurality of first electrode groups are connected in series and controlled by first current driving circuits and a plurality of second electrode groups are connected in series and controlled by second current driving circuits, and the first current driving circuits and the second current driving circuits are independent of each other.
2. The LED light source system of claim 1, wherein the gap spacing of the first light emitting region and the second light emitting region is less than 0.1mm.
3. The LED light source system of claim 1, wherein the first light emitting region is a circular light emitting region and the second light emitting region is an annular light emitting region, or wherein the first light emitting region is a rectangular light emitting region and the second light emitting region is a back-shaped light emitting region.
4. The LED light source system of claim 1, wherein the area ratio of the first light emitting region to the second light emitting region is (0.5-2): 1.
5. The LED light source system of claim 4, wherein the first light emitting region has an area of S 1 , the second light emitting region has an area ratio of S 2 , the first current has a current value of I 1 , the second current has a current value of I 2 , The ratio of the luminous intensity of the first luminous area to the luminous intensity of the second luminous area of the partition type LED unit is y, and under the condition that the total power is basically constant, the x and y satisfy the following conditions:
6. The LED light source system of claim 4, wherein the area of the first light emitting region is S 1 , the area ratio of the second light emitting region is S 2 , the current value of the first current is I 1 , the current value of the second current is I 2 , and under the condition that the total power is substantially constant, the S 1 、S 2 、I 1 、I 2 satisfies: When (when) When the partition type LED unit is a uniform LED chip, the ratio of the luminous intensity of the first luminous area to the luminous intensity of the second luminous area is 0.85-1.15; When (when) When the partition type LED unit is a bright-core LED chip, the ratio of the luminous intensity of the first luminous area to the luminous intensity of the second luminous area is more than or equal to 1.25; When (when) When the partition type LED unit is a dark LED chip, the ratio of the luminous intensity of the first luminous area to the luminous intensity of the second luminous area is less than or equal to 0.75.
7. The LED light source system of claim 6, wherein, The area ratio of the first light-emitting area to the second light-emitting area is (0.5-0.55): 1 when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip, and/or The area ratio of the first light-emitting area to the second light-emitting area is (0.7-0.8): 1 when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip, and/or The area ratio of the first light-emitting area to the second light-emitting area is (0.9-1.1): 1, when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip, and/or The area ratio of the first light-emitting area to the second light-emitting area is (1.2-1.3): 1 when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip, and/or The area ratio of the first light-emitting area to the second light-emitting area is (1.4-1.6): 1 when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip, and/or The area ratio of the first light-emitting area to the second light-emitting area is (1.8-2): 1, when When the partition type LED unit is a uniform LED chip, the partition type LED unit is a uniform LED chip When the partition type LED unit is a bright core LED chip, when When the partition type LED unit is a dark LED chip.
8. The LED light source system of claim 1, wherein the light emitting region further comprises a third light emitting region, the third light emitting region is located between the first light emitting region and the second light emitting region, and the area ratio of the first light emitting region, the third light emitting region, and the second light emitting region is (0.5-2): 1.
9. The LED light source system of claim 1, further comprising a light mixing element positioned between the collimating lens assembly and the light extraction lens in the light extraction direction of the LED luminary.
10. The LED light source system of claim 9, wherein the light mixing element is a single-piece fly-eye lens, a double-piece opposed fly-eye lens, or a diffuser.
11. The LED light source system of any one of claims 1 to 10, wherein more than 80% of the LED luminaries are partitioned LED units with partitioned light emitting surfaces, the area of the first light emitting region is S 1 , the area of the second light emitting region is S 2 , the current value of the first current is I 1 , the current value of the second current is I 2 , and S 1 、S 2 、I 1 、I 2 satisfies: The LED light source system obtains bright heart light spots with dark middle bright edges on the focal plane of the light emitting lens and/or The LED light source system obtains uniform light spots on the focal plane of the light emitting lens.
12. The LED light source system of any one of claims 1 to 10, wherein the light source substrate is a copper substrate and a plurality of ceramic substrates disposed on the copper substrate, the partition type LED units are disposed on the ceramic substrates, circuit layers are disposed on the upper and lower surfaces of the ceramic substrates, the circuit layers in the same horizontal direction include a first circuit region, a second circuit region, a third circuit region, a fourth circuit region and a fifth circuit region which are disposed at intervals and are insulated from each other, the fifth circuit region in the horizontal direction is located in the middle region of the circuit layers, the ceramic substrates are provided with conductive holes penetrating through the first circuit region, the second circuit region, the third circuit region and the fourth circuit region, the circuit layers on the upper and lower surfaces are electrically conducted through the conductive holes, the substrates are disposed on the fifth circuit regions on the upper surfaces of the ceramic substrates, the surfaces of the circuit layers on the upper surfaces of the ceramic substrates are further provided with metal layers, and the electrode groups are connected with the metal layers through gold wires.
13. The LED light source system according to any one of claims 1 to 10, wherein the light source substrate is a copper substrate, the copper substrate is a boss structure provided with a plurality of protrusions, the partition type LED units are arranged on the protrusions, a circuit layer is arranged on the upper surface of the copper substrate, the circuit layer comprises four circuit regions which are arranged at intervals in the horizontal direction and/or are arranged in an insulating manner in the vertical direction, a metal layer is arranged above the circuit regions, and the electrode group is connected with the metal layer through gold wires.
14. The LED light source system of any one of claims 1 to 10, wherein the first light emitting region comprises a first semiconductor layer, a first active layer, a second semiconductor layer, an insulating layer, and a substrate from top to bottom, further comprises a first conductive layer, a second conductive layer, and a third semiconductor layer, a second active layer, a fourth semiconductor layer, an insulating layer, and a substrate from top to bottom, wherein the second light emitting region comprises a third conductive layer, and a fourth conductive layer, and further comprises a third conductive layer and a fourth conductive layer, wherein the third conductive layer, and the fourth conductive layer are in ohmic contact with the third semiconductor layer, and are mutually insulated and spatially offset, and the first conductive layer, the second conductive layer, and the second conductive layer are connected to the two electrodes of the first electrode group, and the third conductive layer, and the fourth conductive layer are connected to the two electrodes of the second electrode group.
15. The LED light source system of any one of claims 1 to 10, wherein the drive control of the first and second currents is controlled by adjusting the period and/or duty cycle of the pulse width.

Description

LED light source system Technical Field The invention relates to the technical field of optics, in particular to an LED light source system. Background Stage lighting is an important component of stage performance, and is used for carrying out the light design of an omnibearing visual environment on people and required specific scenes according to the development of a plot, creating the environment, rendering atmosphere and highlighting the central people by light color and changes thereof, creating stage space sense and time sense, and purposefully reproducing design intentions to audiences in a visual image mode. The effect of stage lighting is realized through stage lighting equipment, and stage lighting source module is stage lighting equipment's core component, plays decisive role to stage lighting effect. The structure of the high-power stage light source module on the market at present generally comprises LED luminous bodies which are arranged in an array, a collimating lens structure, a dodging optical structure and a light-emitting lens, wherein the collimating lens structure, the dodging optical structure and the light-emitting lens are sequentially arranged along the light-emitting direction of the LED luminous bodies. Most high-power stage lamps want to realize different stage effects, the method is to set optical elements such as dimming sheets, CMY sheets, pattern sheets, color sheets, atomizing sheets and the like on the subsequent light paths of the stage light source module to process the light emitted by the light source, but the changing effect of the optical elements is limited and the light efficiency is lost to different degrees. The switchable dual-mode light source module is introduced in the market in recent two years, the LED luminous body comprises an LED unit with high display index and an LED unit with high brightness, and the adjusting structure is arranged to adjust the relative positions of the collimating lens structure and the LED luminous body, so that the collimating lens structure can be aligned to different LED units, the switching of the two modes of high display index and high brightness is realized, and the functional effect is still limited. In addition, the regulation and control of light intensity distribution cannot be achieved by the stage light source products on the market at present, and if the regulation of light spot uniformity can be achieved on the premise that the power and the light output are consistent, the stage light source product has great significance in development. Disclosure of Invention The invention aims to overcome at least one defect of the prior art, and provides an LED light source system which can realize the adjustment of the uniformity of light spots under the condition that the total power and the total light output are basically unchanged, so that the light spots with various light intensity distribution can be obtained according to actual needs, and the light emitting effect is greatly enriched. The technical scheme adopted by the invention is as follows: The utility model provides a LED light source system, includes the light source base plate, sets up a plurality of LED luminous bodies of array arrangement on the light source base plate, sets up collimation lens subassembly and the light-emitting lens in the light-emitting direction of LED luminous body, more than 50% the LED luminous body is the subregion LED unit of light-emitting area subregion, subregion LED unit includes light-emitting area and electrode group, the light-emitting area includes first light-emitting area and the second light-emitting area of general setting around first light-emitting area, the bottom of subregion LED unit is the substrate, first light-emitting area and second light-emitting area share the same substrate, electrode group is located the side of the light-emitting face of light-emitting area, electrode group includes at least the first electrode group that is used for controlling first light-emitting area and the second electrode group that is used for controlling the second light-emitting area, a plurality of first electrode groups establish ties and by first way electric current drive control, a plurality of second electrode groups establish ties and by second way electric current drive control, first way electric current and second way electric current are independent each other. In one embodiment, the gap spacing between the first light emitting region and the second light emitting region is less than 0.1mm. In one embodiment, the first light-emitting area is a circular light-emitting area, the second light-emitting area is an annular light-emitting area, or the first light-emitting area is a rectangular light-emitting area, and the second light-emitting area is a back-shaped light-emitting area. In one embodiment, the area ratio of the first light emitting region to the second light emitting region is (0.5-2): 1. In one embodiment, the area