CN113031380A - RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector - Google Patents

RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector Download PDF

Info

Publication number
CN113031380A
CN113031380A CN201911252021.1A CN201911252021A CN113031380A CN 113031380 A CN113031380 A CN 113031380A CN 201911252021 A CN201911252021 A CN 201911252021A CN 113031380 A CN113031380 A CN 113031380A
Authority
CN
China
Prior art keywords
equal
layer
fluorescent
less
laser projector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911252021.1A
Other languages
Chinese (zh)
Inventor
李东升
张攀德
叶勇
王红
曾庆兵
李春晖
王盛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Aviation Electric Co Ltd
Original Assignee
Shanghai Aviation Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Aviation Electric Co Ltd filed Critical Shanghai Aviation Electric Co Ltd
Priority to CN201911252021.1A priority Critical patent/CN113031380A/en
Publication of CN113031380A publication Critical patent/CN113031380A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity

Abstract

The invention discloses an RGB fluorescent wheel with a narrow-band light-emitting spectrum for a laser projector, which comprises a circular wheel disc, wherein a red fluorescent reflection area, a green fluorescent reflection area and a wheel disc gap area are defined along the circumferential direction of the circular wheel disc, a binder layer, an optical reflection layer and a red fluorescent reflection layer are sequentially arranged on the red fluorescent reflection area, and a binder layer, an optical reflection layer and a green fluorescent reflection layer are sequentially arranged on the green fluorescent reflection area. The invention has the beneficial effects that: compared with a broadband fluorescent material, the utilization efficiency of light can be remarkably improved by using the narrow-band fluorescent material; compared with a projector using three-primary-color lasers, the optical path and the electric control are greatly simplified, and regular calibration is not needed.

Description

RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector
Technical Field
The invention relates to the field of fluorescent conversion materials for laser projectors, in particular to an RGB fluorescent wheel with narrow-band light emission spectrum for a laser projector.
Background
The laser projection technology using laser as a display light source of a projector is a new product in the field with high requirements on projection quality, such as industrial projection, due to high brightness, high energy utilization efficiency and high response speed.
Laser projectors currently on the market are generally implemented in two ways: the three-primary-color laser is used for directly generating a three-primary-color light source so as to be adapted to a target color, and the blue laser is used for exciting a broad-spectrum yellow and green fluorescent material and extracting blue light generated by the laser to compound the target color together. The former method is relatively expensive and requires periodic calibration of the laser, and the latter method does not directly generate red light, but extracts red light from the emission spectrum of the yellow fluorescent material for light distribution, so that the light path is relatively complicated and the light utilization efficiency is relatively low.
Disclosure of Invention
The invention provides an RGB fluorescent wheel for a laser projector, which has a narrow-band emission spectrum, has narrow-band emission and high luminous efficiency, and can obtain higher display brightness and most accurate color display by using the emission spectrum as narrow as possible and the luminous efficiency as high as possible in the display field.
Compared with the prior art, the technical scheme of the invention is realized as follows: a RGB fluorescent wheel with narrow-band light-emitting spectrum for a laser projector comprises a circular wheel disc, a red fluorescent reflection area, a green fluorescent reflection area and a wheel disc gap area are defined along the circumferential direction of the circular wheel disc, a binder layer, an optical reflection layer and a red fluorescent reflection layer are sequentially arranged on the red fluorescent reflection area, and a binder layer, an optical reflection layer and a green fluorescent reflection layer are sequentially arranged on the green fluorescent reflection area; the chemical composition of the red fluorescent reflecting layer is as follows: NaY1-x-y(MoO4)2:Prx,EuyWherein x is more than or equal to 0.01 and less than or equal to 0.45, y is more than or equal to 0.01 and less than or equal to 0.45 and SrO-Gd2O3-XTiO2-YSiO2:Eu3+,Bi3+Wherein X is more than or equal to 5% and less than or equal to 50%, and Y is more than or equal to 5% and less than or equal to 50%; the green fluorescent reflecting layer comprises the following chemical components: sr (Mg)1-xMnx)yAl12-2yO19-2yWherein x is more than or equal to 0.01 and less than or equal to 0.4, y is more than or equal to 0 and less than or equal to 1, and Si6-xAlxOxN8-x:Eu2+Wherein x is more than or equal to 0.2 and less than or equal to 2.5.
As a preferable scheme of the RGB fluorescent wheel with narrow-band luminescence spectrum for the laser projector, the excitation wavelengths of the red fluorescent reflection layer and the green fluorescent reflection layer are both 430-470nm, and the full width at half maximum of the emission wavelength is not more than 25 nm.
As a preferable embodiment of the RGB fluorescent wheel for a laser projector having a narrow-band emission spectrum, the optical reflective layer is one or more of metal, metal oxide, and nonmetal oxide.
As a preferable embodiment of the RGB fluorescent wheel for a laser projector having a narrow-band emission spectrum, the binder layer is one or both of epoxy resin and silicone.
Compared with the prior art, the invention has the beneficial effects that: the light path structure of the laser projector can be simplified, the spectral utilization efficiency can be improved, and the color display accuracy can be improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and drawings.
Referring to fig. 1, there is shown an RGB fluorescent wheel for a laser projector having a narrow-band emission spectrum, which includes a circular wheel 1 having a red fluorescent reflection region 11, a green fluorescent reflection region 12, and a wheel gap region 13 defined in a circumferential direction. The circumferential angle of the red fluorescence reflection area 11 is 95 °. The circumferential angle of the green fluorescence reflection area 12 is 190 °. The circumferential angle of the wheel disc cutout area 13 is 75 °. And the red fluorescent reflection region 11 is sequentially provided with a binder layer, an optical reflection layer and a red fluorescent reflection layer. And a binder layer, an optical reflection layer and a green fluorescent reflection layer are sequentially arranged on the green fluorescent reflection region 12. Chemical group of the red fluorescent reflecting layerThe method comprises the following steps: NaY0.8(MoO4)2:Pr0.15,Eu0.05. The green fluorescent reflecting layer comprises the following chemical components: si5Al1O1N7:Eu2+. The wheel disc gap area 13 is a hollow part and is used for blue light to pass through.
The blade coating thickness of the red fluorescent reflection layer and the blade coating thickness of the green fluorescent reflection layer are both 0.5 mm.
The optical reflection layer is made of metal aluminum.
The adhesive layer is made of high-strength epoxy resin material.
The foregoing merely represents embodiments of the present invention, which are described in some detail and detail, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (4)

1. A RGB fluorescent wheel with narrow-band light-emitting spectrum for a laser projector is characterized by comprising a circular wheel disc, wherein a red fluorescent reflection area, a green fluorescent reflection area and a wheel disc gap area are defined along the circumferential direction of the circular wheel disc, a binder layer, an optical reflection layer and a red fluorescent reflection layer are sequentially arranged on the red fluorescent reflection area, and a binder layer, an optical reflection layer and a green fluorescent reflection layer are sequentially arranged on the green fluorescent reflection area; the chemical composition of the red fluorescent reflecting layer is as follows: NaY1-x-y(MoO4)2:Prx,EuyWherein x is more than or equal to 0.01 and less than or equal to 0.45, y is more than or equal to 0.01 and less than or equal to 0.45 and SrO-Gd2O3-XTiO2-YSiO2:Eu3+,Bi3+Wherein X is more than or equal to 5% and less than or equal to 50%, and Y is more than or equal to 5% and less than or equal to 50%; the green fluorescent reflecting layer comprises the following chemical components: sr (Mg)1-xMnx)yAl12-2yO19-2yWherein x is more than or equal to 0.01 and less than or equal to 0.4, y is more than or equal to 0 and less than or equal to 1, and Si6-xAlxOxN8-x:Eu2+Wherein x is more than or equal to 0.2 and less than or equal to 2.5.
2. The RGB fluorescence wheel for laser projector as claimed in claim 1, wherein the excitation wavelengths of the red and green fluorescence reflection layers are 430-470nm, and the full width at half maximum of the emission wavelength is not more than 25 nm.
3. The RGB fluorescent wheel for a laser projector according to claim 1, wherein the optical reflective layer is one or more of metal, metal oxide, and non-metal oxide.
4. The RGB fluorescent wheel for a laser projector according to claim 1, wherein the adhesive layer is one or both of epoxy resin and silicone.
CN201911252021.1A 2019-12-09 2019-12-09 RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector Pending CN113031380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911252021.1A CN113031380A (en) 2019-12-09 2019-12-09 RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911252021.1A CN113031380A (en) 2019-12-09 2019-12-09 RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector

Publications (1)

Publication Number Publication Date
CN113031380A true CN113031380A (en) 2021-06-25

Family

ID=76451879

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911252021.1A Pending CN113031380A (en) 2019-12-09 2019-12-09 RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector

Country Status (1)

Country Link
CN (1) CN113031380A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105353580A (en) * 2015-12-14 2016-02-24 海信集团有限公司 Wavelength conversion device and laser light source
CN105602558A (en) * 2016-03-03 2016-05-25 东南大学 Fluorescent carbon dot narrow in full width at half maximum and preparation method and application thereof
CN106373951A (en) * 2016-09-19 2017-02-01 苏州东善微光光电技术有限公司 RGB full-color light source, full-color luminescent device and display device
CN108169990A (en) * 2016-12-07 2018-06-15 中航国画（上海）激光显示科技有限公司 A kind of two-color laser light sources project machine and its control method
CN108753277A (en) * 2018-07-10 2018-11-06 北京科技大学 White light LEDs narrow-band blue light fluorescent powder and preparation method and White LED light-emitting device
CN110484254A (en) * 2019-07-12 2019-11-22 广东工业大学 Narrow transmitting green luminescent material of a kind of efficient width excitation and its preparation method and application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105353580A (en) * 2015-12-14 2016-02-24 海信集团有限公司 Wavelength conversion device and laser light source
CN105602558A (en) * 2016-03-03 2016-05-25 东南大学 Fluorescent carbon dot narrow in full width at half maximum and preparation method and application thereof
CN106373951A (en) * 2016-09-19 2017-02-01 苏州东善微光光电技术有限公司 RGB full-color light source, full-color luminescent device and display device
CN108169990A (en) * 2016-12-07 2018-06-15 中航国画（上海）激光显示科技有限公司 A kind of two-color laser light sources project machine and its control method
CN108753277A (en) * 2018-07-10 2018-11-06 北京科技大学 White light LEDs narrow-band blue light fluorescent powder and preparation method and White LED light-emitting device
CN110484254A (en) * 2019-07-12 2019-11-22 广东工业大学 Narrow transmitting green luminescent material of a kind of efficient width excitation and its preparation method and application

Similar Documents

Publication Publication Date Title
CN107479311B (en) Light source system and projection equipment
US20130329448A1 (en) Lighting apparatus with phosphor element
US20170307968A1 (en) Wavelength conversion member including phosphor
JP2018506079A (en) Down conversion film elements
KR20160034166A (en) LED luminous structure for backlight source
CN105388692A (en) Projector red and blue laser light source system
CN106195922A (en) Light wavelength conversion device and applicable light-source system thereof
US11860521B2 (en) Light source with photoluminescence emitter
JP6273595B1 (en) Phosphor and light emitting device
EP2765454B1 (en) Display apparatus including a wavelength conversion layer
CN113031380A (en) RGB fluorescent wheel with narrow-band luminescent spectrum for laser projector
CN110032031B (en) Phosphor device and method of manufacturing the same
WO2019093063A1 (en) Light source device and projection device
Morimoto et al. 60.2: Distinguished Paper: A 30 W Pure Blue Emission with NUV Laser‐Diode‐Pumped Phosphor for High‐Brightness Projectors
TW201520678A (en) Blue light mixing method and system using the same
KR20040019177A (en) Method for manufacturing white light emitting diode
US9335011B2 (en) Oxyfluoride phosphor compositions and lighting apparatus thereof
US20040063372A1 (en) Method for manufacturing white light source
JP5527445B2 (en) LIGHT EMITTING ELEMENT, LIGHTING DEVICE USING SAME, AND IMAGE DISPLAY DEVICE
US11822052B2 (en) Colour wheel assembly, light source system, and projection device
JP6818149B2 (en) Fluorescent wheels, light source devices, and projection devices
KR102171446B1 (en) Phophor emitting red-color band range, method for manufacturing the same and light emitting device package
CN113126412B (en) High-brightness multi-channel optical machine framework
US20120069544A1 (en) Light-emitting device with a luminescent medium, corresponding lighting system comprising the light-emitting device and corresponding luminescent medium
CN104683775A (en) Blue light synthesis method and system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination