CN-121993751-A - Light source

CN121993751ACN 121993751 ACN121993751 ACN 121993751ACN-121993751-A

Abstract

The invention discloses a light source which comprises a driving substrate and a light-emitting unit group, wherein the light-emitting unit group comprises at least two groups of light-emitting units, the light-emitting unit group comprises an ith light-emitting unit and a jth light-emitting unit, the jth light-emitting unit surrounds at least part of the ith light-emitting unit, the ith light-emitting unit and the jth light-emitting unit are respectively and independently electrically connected with the driving substrate, the light source further comprises a light-emitting adjusting structure positioned on the light-emitting side of the light-emitting unit group, the distance between the ith light-emitting unit and the light-emitting adjusting structure is constant, the distance between the jth light-emitting unit and the light-emitting adjusting structure is constant, and the light-emitting angle of the jth light-emitting unit is larger than that of the ith light-emitting unit. By adopting the technical scheme, the same light-emitting adjustment structure is used in the fixed space structure to enable the same light source to emit various different light-emitting angles, so that the design cost and the production cost of the light source are reduced, and the miniaturization requirement of the light source is met.

Inventors

ZHAO HONGYU
Request for anonymity

Assignees

若善科技(深圳)有限公司

Dates

Publication Date: 20260508
Application Date: 20260213

Claims (10)

1. A light source comprising a drive substrate and a light emitting unit group comprising at least two groups of light emitting units comprising a plurality of light emitting elements; The light-emitting unit group comprises an ith light-emitting unit and a jth light-emitting unit, wherein the jth light-emitting unit surrounds at least part of the ith light-emitting unit, and the ith light-emitting unit and the jth light-emitting unit are respectively and independently electrically connected with the driving substrate, and i and j are both positive integers; The light source further comprises a light-emitting adjustment structure positioned at the light-emitting side of the light-emitting unit group, the distance between the light-emitting unit of the ith group and the light-emitting adjustment structure is constant, the distance between the light-emitting unit of the jth group and the light-emitting adjustment structure is constant, and the light-emitting angle of the light-emitting unit of the jth group is larger than that of the light-emitting unit of the ith group.
2. A light source as recited in claim 1, wherein said i-th group light-emitting unit has a light-emitting angle of The light-emitting angle of the j-th group light-emitting unit is ; The maximum distance between the setting area of the ith group of light emitting units and the center of the light emitting unit group is L i , and the maximum distance between the setting area of the jth group of light emitting units and the center of the light emitting unit group is L j ; Wherein, the A is a positive number.
3. A light source according to claim 1, wherein a distance between the ith group of light emitting units and the light emission adjusting structure is the same as a distance between the jth group of light emitting units and the light emission adjusting structure in an optical axis direction of the light source.
4. The light source according to claim 1, wherein the driving voltage of the light emitting unit of the i-th group is U i , and the driving voltage of the light emitting unit of the j-th group is U j ; Wherein, the 。
5. The light source of claim 4, wherein the group of light emitting units further comprises a p-th group of light emitting units, p being a positive integer; A plurality of the light emitting elements in the p-th group of light emitting units are arranged in parallel.
6. The light source of claim 4, wherein the group of light emitting units further comprises a q-th group of light emitting units, q being a positive integer; the q-th group light emitting unit includes at least one light emitting sub-unit including a plurality of the light emitting elements; a plurality of light emitting elements in the same light emitting subunit are arranged in series; When the q-th group light emitting unit includes at least two light emitting sub-units, any two light emitting sub-units are arranged in parallel.
7. The light source of claim 1, wherein the substrate comprises an electrical pad set; The light emitting element includes a first electrode and a second electrode; the electrical pad group includes a plurality of electrical pad units including a first electrode pad and a second electrode pad; at least one of the first electrodes in the light emitting unit is electrically connected with the first electrode pad, and at least one of the second electrodes is electrically connected with the second electrode pad; or the electric bonding pad group comprises a common first electrode bonding pad and a plurality of second electrode bonding pads, at least one first electrode in any one light-emitting unit is electrically connected with the common first electrode bonding pad, and at least one second electrode in each light-emitting unit is electrically connected with the second electrode bonding pad.
8. The light source of claim 1, wherein the light emitting element comprises a light emitting chip and a fluorescent patch, the fluorescent patch being located on a light emitting side of the light emitting chip.
9. The light source of claim 8, further comprising a light emission gap between two adjacent groups of the light emitting units; In the radial direction, the width d of the light emitting gap satisfies d <0.15mm.
10. A light source as claimed in claim 1, characterized in that the light emitting units further comprise an mth group of light emitting units and an nth group of light emitting units, wherein the color temperatures and/or colors of the light emitting elements are different in the mth group of light emitting units and the nth group of light emitting units, and m and n are positive integers.

Description

Light source Technical Field The embodiment of the invention relates to the technical field of light source manufacturing, in particular to a light source. Background With the development and increasing maturity of LED (LIGHT EMITTING Diode) technology, LED light sources have gradually replaced traditional light sources to become new generation artificial light sources, and are increasingly widely applied to lighting products. For different lighting application scenarios, the lighting product needs to be designed with different lighting angles. At present, two technical schemes for realizing the functional requirement are adopted, one is to independently design adaptive optical devices respectively by selecting specific LED light source models, the assembly relative positions of the optical devices and the LED light sources are fixed, and the control of corresponding light-emitting angles is realized by changing different optical devices. And the other is to select a specific LED light source and design an adaptive optical device, and the light output with different light emitting angles can be realized on the same finished product by adjusting the relative positions of the optical device and the LED light source. However, the first technical solution must be designed and developed separately for each finished product and manufactured to correspond to various light emitting angles, which increases design development costs and manufacturing costs. In the second technical scheme, although the requirements of outputting various different light-emitting angles on the same finished product can be met by adjusting the relative positions of the optical device and the LED light source, the finished product is required to have enough space in volume, and the mechanical structure for adjusting the position is complex, so that the whole finished product is huge in volume and is unfavorable for the miniaturization requirement of the finished product. Disclosure of Invention The embodiment of the invention provides a light source, which uses the same light-emitting adjusting structure in a fixed space structure, and realizes the effect of emitting a plurality of different light-emitting angles by independent driving control of a light-emitting unit, thereby reducing the design development cost and the production manufacturing cost of the light source and reducing the volume of the light source. The embodiment of the invention provides a light source, which comprises a driving substrate and a light-emitting unit group, wherein the light-emitting unit group comprises at least two groups of light-emitting units, and the light-emitting units comprise a plurality of light-emitting elements; the light-emitting unit group comprises an ith light-emitting unit and a jth light-emitting unit, wherein the jth light-emitting unit surrounds at least part of the ith light-emitting unit, and the ith light-emitting unit and the jth light-emitting unit are respectively and independently electrically connected with the driving substrate, and i and j are positive integers; the light source further comprises a light-emitting adjusting structure positioned on the light-emitting side of the light-emitting unit group, the distance between the light-emitting unit of the ith group and the light-emitting adjusting structure is constant, the distance between the light-emitting unit of the jth group and the light-emitting adjusting structure is constant, and the light-emitting angle of the light-emitting unit of the jth group is larger than that of the light-emitting unit of the ith group. Optionally, the light emitting angle of the ith group of light emitting units isThe light-emitting angle of the j-th group light-emitting unit is; The maximum distance between the setting area of the ith group of light emitting units and the center of the light emitting unit group is L i, and the maximum distance between the setting area of the jth group of light emitting units and the center of the light emitting unit group is L j; Wherein, the A is a positive number. Optionally, a distance between the ith group of light emitting units and the light emitting adjustment structure is the same as a distance between the jth group of light emitting units and the light emitting adjustment structure along an optical axis direction of the light source. Optionally, the driving voltage of the ith group of light emitting units is U i, and the driving voltage of the jth group of light emitting units is U j; Wherein, the 。 Optionally, the light-emitting unit group further comprises a p-th group of light-emitting units, wherein p is a positive integer; the plurality of light emitting elements in the p-th group of light emitting units are arranged in parallel. Optionally, the light-emitting unit group further comprises a q-th group of light-emitting units, wherein q is a positive integer; The q-th group light emitting unit includes at least one light emitting sub-unit includ