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Multi-channels high brightness light engine apparatus

An optical engine and multi-channel technology, which is applied in the field of hybrid laser LED engine devices, can solve the problems of reduced efficiency of red LEDs, difficulty in coating multi-bandpass filters, etc.

Pending Publication Date: 2021-06-25
翟金会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the efficiency of AlInGaP-based red LEDs decreases as the red wavelength gets shorter closer to the "green gap", for example, red-amber LEDs at a peak wavelength of about 620nm (the ideal red wavelength for lighting), their The external quantum efficiency is only about 25%
Second, the thermal efficiency drop for AlInGaP-based red LEDs is much higher than that associated with InGaN-based blue LEDs
The coating of single bandpass dichroic mirror is also relatively easy, but the coating of multi-bandpass filter is more difficult

Method used

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  • Multi-channels high brightness light engine apparatus
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  • Multi-channels high brightness light engine apparatus

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Embodiment approach

[0047] as figure 2According to the first embodiment of the high brightness 3-channel optical engine device of the present invention, it at least includes a long-wavelength red LED 101 with a deep red (DR) peak wavelength of 640nm~660nm, a red amber peak wavelength of about 620nm short-wavelength red (R) LED 102, phosphor-converted green (CG) LED 104, and blue (B) LED 103, wherein the converted green light emitted from the phosphor-converted green LED 104 through the lens 104A as the first light channel will be Dichroic mirror 105 is combined with blue light emitted from blue LED 103 through lens 103A as a second optical channel, and wherein magenta LED 101 and red-amber LED 102 are packaged on a single substrate, emitted from magenta LED 101 The magenta light and the red amber light emitted from the red amber LED 102 are converged by the lens 101A as the third light channel, and then combined into the coaxial optical path 10 by the wedge dichroic mirror 106 . The peak wavele...

no. 1 approach

[0061] As a first embodiment of the hybrid laser LED optical engine device according to the present invention, it includes at least one long-wavelength red light, at least one blue-wavelength light, phosphor-converted green light, and green The top of the phosphor plate pumps the fluorescence conversion green light device and the top pumps the blue light. Additionally, at least one of deep red wavelength light and top pumped blue light is emitted from the laser diode device. Red light, phosphor-converted green light, and blue light will be combined into a coaxial light path by a beam combiner without increasing the etendue to obtain a high brightness optical engine configuration. Beam combiners can be wedge dichroic mirrors, X-plate dichroic mirrors, or single dichroic mirrors. Such as Figure 21 As shown, the red channel may include a long-wavelength red LED 2001 having a peak wavelength of 640nm-660nm and a short-wavelength red LED 2002 having a red-amber peak wavelength o...

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Abstract

A high brightness light engine apparatus is disclosed, comprising at least one long red wavelength light source with a peak wavelength longer than 630 nm, at least one green wavelength light source and at least one blue wavelength light source. Furthermore, the long wavelength red light may be combined with short wavelength red light and green / blue lights into a co-axial light path by at least one beam combiner such as wedged dichroic mirror, X-plate dichroic mirror or a dichroic X-cube. A 3-channels / 4-channels / 5-channels light engine apparatus and a hybrid laser LED light engine apparatus are disclosed that comprises at least a long wavelength red light source, one blue light source, and one converted green light source, combined by a dichroic mirror together with a X-plate dichroic mirror, a wedged dichroic mirror or a dichroic X-cube without Etendue increase to achieve high brightness light engine output as high as 5000 lm.

Description

[0001] related application [0002] This application claims priority and benefit to U.S. Provisional Patent Application 62 / 953,226, filed December 24, 2019, entitled "MULTI-CHANNELS LIGHT ENGINEAPPARATUS COMPRISES A LONG WAVELENGTH RED LIGHT SOURCE," which is hereby incorporated by reference in its entirety enter. technical field [0003] The technology disclosed in the present invention relates to an optical engine device, in particular to a multi-channel optical engine device and a hybrid laser LED engine device for a high-brightness optical engine lighting system, the optical engine device may include a long-wavelength red light channel, and Combined with green and blue channels and / or short-wavelength red channels into a coaxial optical path. Background technique [0004] State of the art multi-channel optical engine devices use R / G / B light and mix together to obtain white and bright color images. It typically uses short-wavelength red LEDs because the human eye is les...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/14G02B27/10G03B21/20
CPCG02B27/141G02B27/1006G03B21/2013G03B21/2033G03B21/204G03B21/208G02B27/149G02B26/008G02B19/0066G02B19/0009
Inventor 翟金会
Owner 翟金会