Full-spectrum LED package
By combining blue light chips of different wavelengths in LED packages with optimized phosphor mixtures, the problem of low excitation efficiency of conventional full spectrum LED phosphors is solved, and the improvement of light efficiency and spectral saturation is achieved.
Patent Information
- Application Number
- CN202323646827.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Conventional full spectrum LED phosphors have poor excitation effect under the excitation of blue light chips of different wavelengths, resulting in low excitation efficiency of phosphors and insufficient light effect and spectral saturation.
Three different wavelength blue light chips (430-445nm, 450-455nm and 467.5-475nm) were used to combine with the optimized green and red phosphor glue mixture, and excitation was given priority through a single-shaped distribution LED chip layout and electrode plate design. The most effective phosphor mixture to improve the excitation efficiency of phosphor.
It significantly improves the excitation efficiency and spectral saturation of the phosphor and improves the light efficiency of the LED.
Smart Images
Figure CN222214206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LEDs, in particular to a full-spectrum LED package. Background Art
[0002] Conventional full-spectrum LED phosphors are evenly distributed in the LED cup and excited simultaneously by three chips of different wavelengths. Since the different wavelengths of blue light chips have different effects on exciting phosphors, the optimal blue light wavelength for green powder is 440-455nm, and the optimal wavelength for red powder is 450-475nm, resulting in poor phosphor excitation effect. Summary of the invention
[0003] The technical problem solved by the utility model is to provide a full-spectrum LED package, improve the excitation efficiency of phosphors, and enhance the light effect and spectrum saturation.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: a full-spectrum LED package, including a bowl cup holder and an LED chip arranged in the bowl cup holder, the LED chip including a first blue light chip with an emission wavelength of 430-445, a second blue light chip with an emission wavelength of 450-455 and a third blue light chip with an emission wavelength of 467.5-475; the top light emitting surface of the first blue light chip is provided with a first green fluorescent glue, the top light emitting surface of the second blue light chip is provided with a second green fluorescent glue, and the top light emitting surface of the third blue light chip is provided with a red fluorescent glue; the bowl cup holder is provided with an external sealing glue. The principle of the utility model is as follows: a first blue light chip with a short wavelength of 430-445 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 430-445, a second blue light chip with a medium wavelength of 450-455 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 455-455, a third blue light chip with a long wavelength of 467.5-475 is fixed to preferentially excite a red powder glue mixture with the best excitation effect at 467.5-475, and they are respectively applied on the chip surface to improve the excitation efficiency of the phosphor, and enhance the light effect and the spectral saturation.
[0005] As an improvement, the first blue light chip, the second blue light chip and the third blue light chip are arranged in a straight line.
[0006] As an improvement, a first electrode plate and a second electrode plate are provided at the bottom of the bowl and cup holder, and an insulating tape is provided between the first electrode plate and the second electrode plate; the first blue light chip is provided on the first electrode plate, and the second blue light chip and the third blue light chip are provided side by side on the second electrode plate.
[0007] As an improvement, the first blue light chip, the second blue light chip and the third blue light chip are all regular chips.
[0008] Compared with the prior art, the utility model has the following beneficial effects:
[0009] A first blue light chip with a short wavelength of 430-445 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 430-445. A second blue light chip with a medium wavelength of 450-455 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 455-455. A third blue light chip with a long wavelength of 467.5-475 is fixed to preferentially excite a red powder glue mixture with the best excitation effect at 467.5-475. These chips are applied to the chip surface respectively to improve the excitation efficiency of the phosphor, enhance the light effect and the spectral saturation. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is the LED chip layout diagram.
[0011] Figure 2 It is a cross-sectional view of the utility model. Implementation
[0012] The utility model will be further described below in conjunction with the accompanying drawings.
[0013] like Figure 1 , 2 As shown, a full-spectrum LED package includes a bowl cup bracket 1 and an LED chip arranged in the bowl cup bracket 1. The bowl cup bracket 1 includes a plastic frame, and a first electrode plate 41 and a second electrode plate 42 are arranged at the bottom of the plastic frame, and an insulating tape 43 is arranged between the first electrode plate 41 and the second electrode plate 42. The LED chip includes a first blue light chip 1 with an emission wavelength of 430-445, a second blue light chip 2 with an emission wavelength of 450-455, and a third blue light chip 3 with an emission wavelength of 467.5-475; the first blue light chip 1, the second blue light chip 2 and the third blue light chip 3 are distributed in a straight line, specifically, the first blue light chip 1 is arranged on the first electrode plate 41, and the second blue light chip 2 and the third blue light chip 3 are arranged side by side on the second electrode plate 42; the first blue light chip 1, the second blue light chip 2 and the third blue light chip 3 are all positive chips. The top light-emitting surface of the first blue light chip 1 is provided with a first green fluorescent glue 11, which is a mixture of green fluorescent powder and glue; the top light-emitting surface of the second blue light chip 2 is provided with a second green fluorescent glue 21, which is a mixture of green fluorescent powder and glue; the top light-emitting surface of the third blue light chip 3 is provided with a red fluorescent glue 31, which is a mixture of red fluorescent powder and glue; the shape of the mixture is a top arc structure. The bowl and cup bracket 1 is provided with an external sealing glue 5, which includes three chips and the fluorescent glue on their top surfaces.
[0014] The principle of the utility model is as follows: a first blue light chip 1 with a short wavelength of 430-445 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 430-445, a second blue light chip 2 with a medium wavelength of 450-455 is fixed to preferentially excite a green powder glue mixture with the best excitation effect at 455-455, a third blue light chip 3 with a long wavelength of 467.5-475 is fixed to preferentially excite a red powder glue mixture with the best excitation effect at 467.5-475, and they are respectively dotted on the chip surface to improve the excitation efficiency of the phosphor, enhance the light effect and the spectral saturation.
Claims
1. A full-spectrum LED package, comprising a cup holder and an LED chip arranged in the cup holder, characterized in that: The LED chip includes a first blue light chip with an emission wavelength of 430-445, a second blue light chip with an emission wavelength of 450-455, and a third blue light chip with an emission wavelength of 467.5-475; the top light emitting surface of the first blue light chip is provided with a first green fluorescent glue, the top light emitting surface of the second blue light chip is provided with a second green fluorescent glue, and the top light emitting surface of the third blue light chip is provided with a red fluorescent glue; the bowl and cup holder is provided with an external sealing glue.
2. A full spectrum LED package according to claim 1, characterized in that: The first blue light chip, the second blue light chip and the third blue light chip are arranged in a straight line.
3. The full-spectrum LED package according to claim 1, characterized in that: A first electrode plate and a second electrode plate are provided at the bottom of the bowl and cup support, and an insulating tape is provided between the first electrode plate and the second electrode plate; the first blue light chip is provided on the first electrode plate, and the second blue light chip and the third blue light chip are provided side by side on the second electrode plate.
4. The full-spectrum LED package according to claim 1, characterized in that: The first blue light chip, the second blue light chip and the third blue light chip are all regular chips.