TWI669833B - Phosphor device - Google Patents

Phosphor device Download PDF

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Publication number
TWI669833B
TWI669833B TW105132948A TW105132948A TWI669833B TW I669833 B TWI669833 B TW I669833B TW 105132948 A TW105132948 A TW 105132948A TW 105132948 A TW105132948 A TW 105132948A TW I669833 B TWI669833 B TW I669833B
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TW
Taiwan
Prior art keywords
light
section
band
fluorescent agent
fluorescer
Prior art date
Application number
TW105132948A
Other languages
Chinese (zh)
Other versions
TW201739066A (en
Inventor
張克蘇
周彥伊
陳琪
呂俊賢
Original Assignee
台達電子工業股份有限公司
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Priority to US201662324752P priority Critical
Priority to US62/324,752 priority
Application filed by 台達電子工業股份有限公司 filed Critical 台達電子工業股份有限公司
Priority claimed from US15/403,995 external-priority patent/US10310363B2/en
Publication of TW201739066A publication Critical patent/TW201739066A/en
Application granted granted Critical
Publication of TWI669833B publication Critical patent/TWI669833B/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2033LED or laser light sources
    • G03B21/204LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence

Abstract

This case relates to a fluorescer device, which is suitable for emitting light in the first band and provided with a light path Light source system, the phosphor device includes a first section and a first phosphor. The first phosphor is applied on the first section. The first fluorescer receives light in the first band, converts the light in the first band into light in the second band, and then emits the light in the second band to the optical path. The spectral range of the light in the second band includes at least the first color. Light and the second color light, so that the light of the second wavelength band is separated in the light path to obtain the first color light or the second color light. In this way, the first color light or the second color light can be separated and selected according to actual needs, which makes the design of the phosphor device more diverse, and can reduce manufacturing costs, reduce product size, and improve color purity.

Description

Fluorescent Device

This case relates to a fluorescer device, especially a fluorescer device suitable for a light source system.

In recent years, various projection devices, such as projectors, have been widely used in homes, schools, or various business occasions to enlarge and display image signals provided by an image signal source on a screen. In order to save power consumption and reduce the size of the device, the current Illumination System of projection equipment has used solid-state light-emitting elements, such as light-emitting diodes or laser elements, to replace traditional high-density gas discharge lamps (HID Lamps) or High pressure mercury lamp.

The light source system of a projection device needs to be able to emit three primary colors of red, green, and blue (R, G, B). However, the light-emitting efficiency of solid-state light-emitting elements is generally the best. Most of the methods use blue solid-state light-emitting elements with wavelength conversion devices to convert the wavelength of blue light. For example, the phosphor light wheel (Phosphor Wheel) is used to excite various colors of light, thereby replacing red-light solid-state light-emitting elements or green light. The solid-state light-emitting element directly emits red or green light to improve the overall luminous efficiency of the light source system and reduce costs.

Generally speaking, the light source system of a conventional projection device can be roughly divided into two types. One is a single blue solid-state light-emitting element combined with a single phosphor color wheel having a plurality of sections. Please refer Please refer to FIG. 1A and FIG. 1B, which are a schematic diagram of a structure of a conventional projection device and a schematic diagram of a phosphor color wheel having a plurality of sections shown in FIG. 1A, respectively. As shown in FIGS. 1A and 1B, the conventional projection device 1 emits blue light with a solid-state light-emitting element 11 to a phosphor color wheel 12 including a first section 121, a second section 122, and a third section 123. . Among them, the first section 121 is coated with green fluorescent agent to excite the incident blue light into green light and then emit, and the second section 122 is coated with red fluorescent agent to excite the incident blue light into red light. The emission and the third section 123 are made of light-transmitting material, so that the blue light directly penetrates and emits. In other words, the blue light emitted by the solid-state light-emitting element 11 directly penetrates the phosphor color wheel 12 or is converted into green light or red light through the phosphor color wheel 12 and then emits three primary colors of light for projection. In this type of projection equipment, In 1, the three primary colors are sequentially incident on the display device 14 through the relay module 13, such as a digital micromirror device (DMD), a liquid crystal display (LCD), or a liquid crystal silicon-on-silicon device. (Liquid Crystal on Silicon, LCOS), etc., and then zoom and focus the image through the lens group 15, and then project the image on the screen 16.

The light source system of another conventional projection device uses a plurality of blue solid-state light-emitting elements in combination with a plurality of phosphor color wheels coated with a single phosphor. Please refer to FIG. 2A, FIG. 2B, and FIG. 2C, where FIG. 2A is a schematic diagram showing the structure of another conventional projection device, and FIG. 2B is a first fluorescent light coated with a single fluorescent agent as shown in FIG. 2A The schematic diagram of the structure of the agent color wheel, and FIG. 2C is a schematic diagram showing the structure of the second fluorescent agent color wheel coated with a single fluorescent agent shown in FIG. 2A. As shown in FIG. 2A, FIG. 2B, and FIG. 2C, the section 221 of the first phosphor color wheel 22 of the conventional projection device 2 is coated with red phosphor, and the second phosphor color wheel 24 The segment 241 is coated with a green fluorescent agent, which is used for exciting the incident light to convert it into red light and green light, respectively. The first dichroic mirror 210 reflects green light and transmits red light, and the second dichroic mirror 211 reflects blue light and transmits red and green light. Therefore, the blue light emitted by the first solid-state light-emitting element 21 is excited into red light by the first phosphor color wheel 22 and penetrates the first dichroic mirror 210 and the second The color mirror 211 is directed toward the relay module 26. The blue light emitted by the second solid-state light-emitting element 23 is excited by the second phosphor color wheel 24 to be green light, and is reflected by the first dichroic mirror 210 to be incident on the second dichroic mirror 211, and then penetrates the second The color mirror 211 is directed toward the relay module 26. As for the blue light emitted by the third solid-state light-emitting element 25, it is directly reflected by the second dichroic mirror 211 and is directed toward the relay module 26. The aforementioned three primary colors are incident on the display device 27 sequentially or simultaneously through the relay module 26, and after the image is zoomed and focused through the lens group 28, the image is projected on the screen 29.

Although traditional projection equipment can replace red or green solid-state light-emitting elements with blue solid-state light-emitting elements through the above-mentioned methods, in some common projection equipment and their light source systems, the green light produced by green fluorescent agent is stimulated and converted. The parts are mixed with a little red light and slightly yellowish, which makes the imaging color impure and reduces the image quality. At the same time, due to the low saturation of blue fluorescent lasers currently used by red fluorescent agents, the total amount of light converted into red light by excitation is limited. The problem that the emission drive current rises and decays rapidly, not only causes the red light itself to have too low brightness and illuminance, but also causes the overall light brightness of the light source system to be unable to effectively integrate, which affects the total light output measurement.

In addition, in the reflective phosphor color wheel, its reflectivity and reflection spectrum are the key to determine its performance efficiency. Generally, the commonly used reflective coatings cover all visible light ranges, and most of them use silver or aluminum as materials. Please refer to FIG. 3, which shows the reflectance of silver and aluminum corresponding to visible light with a wavelength of 400 to 700 nanometers and the emission spectrum of green, yellow, and red light. Due to the low chemical stability of silver, when the laser wattage or operating temperature increases, silver atoms will aggregate and vulcanize, resulting in a significant decrease in reflectance. Therefore, aluminum used in high-energy phosphor color wheels is mostly aluminum. As a reflective coating; although aluminum has better stability, it has a low reflectivity characteristic, especially for the red light segment, that is, visible light with a wavelength of 600 to 700 nm, the lowest reflectance, As a result, the red light output ratio is insufficient, resulting in low light output efficiency. Drop problem. In short, regardless of whether the reflective coating is made of silver or aluminum, the reflectivity is not good.

Therefore, how to develop a fluorescer device that can improve the lack of the above-mentioned conventional techniques and effectively provide the maximum output of colored light in each band is a problem that remains to be solved.

The main purpose of the present case is to provide a fluorescer device that addresses at least one of the disadvantages of the aforementioned conventional techniques.

Another object of this case is to provide a fluorescer device that converts light in a first wavelength band into a light in a second wavelength band with a wider wavelength band to a light path through a first fluorescent agent, and then makes the light in the second wavelength band into the light path The first color light or the second color light can be obtained by color separation. The first color light or the second color light can be separated according to actual needs, which makes the design of the phosphor device more diverse, and can reduce manufacturing costs, reduce product size, and Improve color purity.

Another object of the present case is to provide a fluorescer device that can reflect the reflection spectrum of a specific color light through a reflective substrate with at least two kinds of reflection spectrum to provide a reflectance that is higher than the reflectance of aluminum in all bands Fluorescent device to achieve the maximum output of colored light in each band.

In order to achieve the above object, a preferred embodiment of the present invention is to provide a fluorescer device, which is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes: And a first fluorescer coated on the first section; wherein the first fluorescer receives the first band of light and converts the first band of light into a second band of light, Emitting the second band of light to the light path, wherein the spectral range of the second band of light includes at least a first color light and a second color light, so that the second band light is separated in the light path to obtain the light The first color light or the second color light.

To achieve the above object, another preferred embodiment of the present invention is to provide a fluorescer device, which is suitable for a light source system that emits a first wave of light and has a light path. The substrate includes a first section; and a first fluorescent layer includes: a first fluorescer formed on the first section to convert the first band of light into a second band of light, and Emitting the second wave of light to the light path, wherein the spectral range of the second wave of light includes at least a first color light and a second color light, so that the second wave of light is separated in the light path to obtain the first light A two-color light; and a fourth fluorescent agent distributed between the first fluorescent agents to convert the first-wavelength light into the second-color light, thereby increasing the light intensity of the second-color light.

To achieve the above object, another preferred embodiment of the present invention is to provide a fluorescer device, which is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes: a reflective type The substrate includes a first section, a second section, and a third section, wherein the first section has a reflectance for a first color light that is greater than that of aluminum for the first color light. Spectrum, the second section has a reflectance for a second color light that is greater than the reflectance of aluminum for the second color light, and the third section directly reflects the first band of light; a first fluorescent light An agent coated on the first section for converting the first band of light into a second band of light, wherein a spectral range of the second band of light includes at least the first color light; and a second fluorescent light An agent coated on the second section to convert the first band of light into a third band of light, wherein a spectral range of the third band of light includes at least the second color light.

1, 2‧‧‧ projection equipment

11‧‧‧Solid-state light-emitting element

12‧‧‧ Fluorescent Color Wheel

121‧‧‧ Section 1

122‧‧‧Second Section

123‧‧‧Section 3

13, 26‧‧‧ relay module

14, 27‧‧‧Development device

15, 28‧‧‧ lens group

16, 29‧‧‧ screen

21‧‧‧The first solid-state light-emitting element

210‧‧‧The first dichroic mirror

211‧‧‧Second dichroic mirror

22‧‧‧The first phosphor color wheel

Section 221‧‧‧

23‧‧‧Second solid-state light-emitting element

24‧‧‧Second Fluorescent Color Wheel

Section 241‧‧‧

25‧‧‧ the third solid-state light-emitting element

3‧‧‧ Projection Equipment

4‧‧‧light source system

40‧‧‧Fluorescent device

401‧‧‧Section 1

402 、 Y‧‧‧First Fluorescent Agent

403‧‧‧first filter

404‧‧‧Second Section

405‧‧‧Second Fluorescent Agent

406‧‧‧Second filter

407‧‧‧Section 3

408‧‧‧Section 4

409‧‧‧Third Fluorescent Agent

400‧‧‧ reflective substrate

4001‧‧‧First fluorescent layer

4002‧‧‧Second fluorescent layer

4003‧‧‧Reflective layer

41‧‧‧The first solid-state light-emitting element

42‧‧‧Second solid-state light-emitting element

43‧‧‧ Beamsplitter

45‧‧‧Filter Color Wheel

451‧‧‧first filter segment

452‧‧‧second filter

453‧‧‧Transparent section

5‧‧‧Image processing device

51‧‧‧ Relay Module

52‧‧‧Display Module

5201‧‧‧First dichroic mirror

5202‧‧‧Second dichroic mirror

5203‧‧‧First Mirror

5204‧‧‧The first liquid crystal display unit

5205‧‧‧Second LCD display unit

5206‧‧‧Third LCD display unit

5207‧‧‧Second Mirror

5208‧‧‧Third reflector

5209‧‧‧Two-tone 稜鏡

521‧‧‧First

522‧‧‧ Second

523‧‧‧ Third

524‧‧‧The first digital micromirror

525‧‧‧Second Digital Micromirror

526‧‧‧Third Digital Micromirror

527, 528‧‧‧ interface

6‧‧‧ lens group

7‧‧‧screen

C1‧‧‧First color

C2‧‧‧Second color light

L1‧‧‧First Band Light

L1’‧‧‧ first-band light

L2‧‧‧Second Band Light

L3‧‧‧ Third Band Light

P‧‧‧light path

R‧‧‧ fourth fluorescent agent

Figure 1A is a schematic diagram showing the structure of a conventional projection device.

FIG. 1B is a schematic diagram showing the structure of a phosphor color wheel having a plurality of sections shown in FIG. 1A.

FIG. 2A is a schematic diagram showing the structure of another conventional projection device.

Figure 2B is a schematic diagram showing the structure of a first phosphor color wheel coated with a single phosphor as shown in Figure 2A.

Figure 2C is a schematic diagram showing the structure of a second phosphor color wheel coated with a single phosphor as shown in Figure 2A.

Figure 3 shows the reflectance of silver and aluminum corresponding to visible light with a wavelength of 400 to 700 nanometers and the emission spectrum of green, yellow, and red light.

FIG. 4 is a schematic structural diagram showing a fluorescent device and a suitable light source system according to a preferred embodiment of the present invention.

FIG. 5A is a schematic structural diagram showing a fluorescent agent and a suitable light source system according to another preferred embodiment of the present invention.

FIG. 5B is a detailed structure diagram of the filter color wheel shown in FIG. 5A.

FIG. 6A is a schematic structural diagram showing a light source system and a projection device applicable to the light source system according to a preferred embodiment of the present invention.

FIG. 6B is a schematic structural diagram showing a light source system and a projection device applicable to the light source system according to another preferred embodiment of the present invention.

FIG. 7A is a schematic diagram showing the structure of a fluorescer device according to a preferred embodiment of the present invention.

FIG. 7B is a schematic diagram showing the structure of a fluorescer device according to another embodiment of the present invention.

FIG. 7C is a schematic diagram showing the structure of a fluorescer device according to another embodiment of the present invention.

FIG. 8A is a schematic structural diagram of a display module according to a preferred embodiment of the present invention.

FIG. 8B is a schematic structural diagram of a display module according to another preferred embodiment of the present invention.

FIG. 9A is a schematic structural diagram of a display module according to a preferred embodiment of the present invention.

FIG. 9B is a schematic structural diagram of a display module according to another preferred embodiment of the present invention.

FIG. 10A is a schematic diagram showing a structure of a phosphor device including a reflective substrate according to an embodiment of the present invention.

FIG. 10B is a schematic structural view showing that the phosphor device shown in FIG. 10A further includes a second phosphor layer.

FIG. 11A is a schematic diagram showing the structure of a fluorescer device according to a preferred embodiment of the present invention.

Fig. 11B shows the first and second sections and the reflection spectrum of aluminum shown in Fig. 11A.

FIG. 12A is a schematic diagram showing the structure of a fluorescer device according to another preferred embodiment of the present invention.

FIG. 12B is a schematic diagram showing the structure of a fluorescer device according to another preferred embodiment of the present invention.

Some typical embodiments embodying the features and advantages of this case will be described in detail in the description in the subsequent paragraphs. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and that the descriptions and diagrams therein are essentially for illustration purposes, rather than limiting the case.

Please refer to FIG. 4, which is a schematic structural diagram of a fluorescer device and a suitable light source system according to a preferred embodiment of the present invention. As shown in FIG. 4, the phosphor device 40 in this case is suitable for a light source system that emits light of the first wavelength L1 and is provided with a light path P, and the phosphor device 40 includes a first section 401 and a first fluorescent light. Photoagent 402, wherein the first phosphor 402 is coated on the first section 401 (as shown in FIG. 7A). In this embodiment, the first fluorescer 402 receives the first band of light L1, excites the first band of light L1 and converts it into the second band of light L2, and then emits the second band of light L2 into the optical path P to The second wavelength band light L2 enters the rear end of the light path and is incident through the image processing device 5. The second wavelength band light L2 is separated by the image processing device 5 to obtain two kinds of color light, such as the first color light C1 and the second color light. Color light C2, but not limited to this.

In some embodiments, the image processing device 5 preferably includes a color separation element. At the same time, the color separation element can be selected according to actual needs and only the first color light C1 or the second color light C2 can be obtained. The first color light or the second color light is selected, which makes the design of the phosphor device more diverse, and can reduce manufacturing costs, reduce product size, and improve color purity.

In addition, in some embodiments, the spectral range of the second wavelength light L2 includes at least the first color light C1, and the spectral range of the third wavelength light L3 includes at least the second color light C2.

Please refer to FIG. 5A and FIG. 5B and cooperate with FIG. 4, wherein FIG. 5A and FIG. 5B are schematic diagrams of the structure of the fluorescent agent and the applicable light source system of another preferred embodiment of the present invention, and FIG. 5A The detailed structure diagram of the filter color wheel shown in the figure. As shown in FIG. 4, FIG. 5A, and FIG. 5B, the phosphor device in this case may have different implementation forms, and in this embodiment is a phosphor device 45. In addition to the first section 451, the phosphor device 45 further includes a transparent section 452. The angle of the center angle corresponding to the transparent section 452 is smaller than the angle of the center angle corresponding to the first section 451. The agent device 45 also includes a first fluorescent agent coated on the first section 451, which is the same as that of the previous embodiment, and therefore is omitted for illustration. Among them, the first waveband light L1 emitted by the light source system partially penetrates the transparent section 452 of the phosphor device 45 and directly enters the rear end of the light path, and the rest of the first waveband light L1 is received by the phosphor device 45 The first phosphor is received and excited to be converted into the second wave of light L2, and the second wave of light L2 is emitted by the phosphor device 45 to the rear of the light path, that is, the color is separated by the image processing device 5 to obtain At least two kinds of colored light, and the two kinds of colored light are preferably in a range of red, green, and blue light spectrums in the entire light band with the first wave band light L1. In other words, the light emitted by the phosphor device 45, that is, the integration of the first band of light L1 and the second band of light L2, includes three primary colors of light (can be regarded as equivalent white light) and is separated or time-divided by the image processing device 5.俾 Project the three primary colors of light to form an image.

In some embodiments, the first band of light L1 is blue or ultraviolet, and the second band of light L2 is yellow, green, or yellow-green, and the wavelength is preferably 450 nm to 710 nm. The first color light is It is green light, and the second color light is red light. The first fluorescent agent applied to the first section 451 is green fluorescent agent and yellow. Fluorescent or yellow-green fluorescent. For example, the light source system emits light in the first band L1 (ie, blue light B), and the light in the second band L2 (ie, yellow, green, or yellow-green light) is emitted from the phosphor device 45 to the image processing device 5, where the first Two-band light L2, that is, yellow, green, or yellow-green light. Because its spectral range includes green and red light, green light G and red light R are obtained by 5 color separation of the image processing device. That is, the blue light B is projected and imaged in a time division or color separation manner.

Please refer to FIG. 6A, FIG. 6B, and FIG. 7A, where FIG. 6A is a schematic diagram showing the structure of a light source system and a suitable projection device according to a preferred embodiment of the present invention, and FIG. 6B is another preferred embodiment of the present invention. The structural schematic diagram of the light source system and the applicable projection equipment of the embodiment, and FIG. 7A is a structural schematic diagram showing the fluorescent agent device of the preferred embodiment of the present invention. As shown in FIG. 6A, FIG. 6B, and FIG. 7A, the projection device 3 of the present case includes a light source system 4, an image processing device 5, and a lens group 6. The light source system 4 includes a phosphor device 40 and a first solid-state light emitting device. The element 41 and the second solid-state light-emitting element 42, the image processing device 5 and the lens group 6 are disposed on a light path, and the image processing device 5 includes at least one dichroic element, and the lens group 6 includes more than one lens. The light path passes through the relay module 51 of the image processing device 5 and then enters the imaging module 52. After focusing and zooming the image through the lens group 6, the image is projected on the screen 7 to complete the projection operation. . The relay module 51 may be provided with a relay lens (not shown), a homogenizer, or a reflector, etc., according to the requirements of the actual light path.

The phosphor device 40 may include, but is not limited to, a phosphor color wheel and a phosphor plate. The phosphor device 40 includes a first section 401 and includes a first phosphor 402. The first phosphor 402 is coated on the first A section 401 may be, for example, but not limited to, a yellow phosphor, a green phosphor, or a yellow-green phosphor. The first solid-state light-emitting element 41 is configured to emit the first-wavelength light L1 to the phosphor device 40, and the second solid-state light-emitting element 42 is configured to emit the first-wavelength light L1 'to the aforementioned light path, and the first solid-state light-emitting element 41 and the second solid-state light-emitting element 42 may be, for example, a blue-light solid-state light-emitting element or a blue laser diode, which are used to emit blue light, that is, the light in the first wavelength band L1 is a light having a spectrum in the blue light band. This is a limitation, and in other embodiments, it may be UV light, and the spectrum systems of the first band light L1 and the first band light L1 ′ may be the same or different. The phosphor device 40 excites and converts the first-band light L1 emitted by the first solid-state light-emitting element 41 into the second-band light L2, and the second-band light L2 is slightly yellow between the green and red light bands. Green light beam. It should be noted that, since the green light spectrum (or its wavelength) generated by excitation conversion with a green phosphor is mostly in the range of 450 to 710 nanometers (nanometer, nm), therefore, in the application of this embodiment, This spectral range will be used as the back-end light path for the application of the three primary colors, and the detailed application method will be described later in the imaging module 52.

Continuing, in this embodiment, the first light band L1 in the blue light band is excited to be converted into the second light band L2 in the green and red light bands, which is slightly yellow-green, and the second light band L2 is emitted to the The light path is such that at least two kinds of color light are obtained by color separation of the second waveband light L2 by the color separation element of the image processing device 5, and the first waveband light L1 'is projected and imaged in a time-sharing or color-splitting manner. In other words, the phosphor device 40 emits the second wavelength light L2 to the optical path, and the image processing device 5 receives the first wavelength light L1 ′ and the second wavelength light L2 and separates the second wavelength light L2 into at least two color lights. Then, the image processing device 5 projects and images the three primary colors of light included in the first-band light L1 ′ and the second-band light L2 after color separation in a time-sharing or color-separating manner, and performs a projection operation. The light source system 4 and the applicable projection device 3 of the present case can achieve effective reduction of product size while simplifying the manufacturing process, reducing manufacturing costs, and improving the effects of color purity and image quality through the setting of a single phosphor device 40, and By using the phosphor device 40 to convert the first-band light L1 into the second-band light L2 with a wider band, it is possible to effectively avoid the phenomenon that the red light of the conventional projection equipment is attenuated with the increase of the driving current of the blue light, so as to improve the projection equipment 3 The overall brightness and illuminance achieve the effect of improving color performance.

According to the concept of the present case, the light source system 4 further includes a beam splitting element 43, such as, but not limited to, a beam splitter, which is disposed at the front end of the light path to assist the first band of light L1 'and the second band of light L2 to enter the light path, so that The phosphor device 40, the first solid-state light-emitting element 41, and the second solid-state light-emitting element 42 conceived in this case can be applied to a transmissive light source system and a reflective light source system.

Please refer to FIG. 6A again. As shown in FIG. 6A, the light source system 4 in this case may be a transmissive light source system, and the light splitting element 43 has a reflection of the first band of light L1 ′ according to the requirements of the transmissive light source system, and The characteristic of transmitting the light in the second wavelength band L2. The phosphor device 40 and the first solid-state light-emitting element 41 are disposed on one side of the spectroscopic element 43, and the phosphor device 40 is located between the first solid-state light-emitting element 41 and the spectroscopic element 43 on the light path, so that the first The first-band light L1 emitted by a solid-state light-emitting element 41 is excited to be converted into the second-band light L2, and then penetrates the spectroscopic element 43 and enters the image processing device 5 and the lens group 6 at the rear end of the optical path, that is, the first-band light L1. The incident direction is the same as the outgoing direction of the second-wavelength light L2. As for the second solid-state light-emitting element 42, the image processing device 5 and the lens group 6 are disposed on the other side of the light-splitting element 43 to directly project the first-wavelength light L1 ′ to the light-splitting element 43 for reflection and enter the rear end of the light path. It should be noted that in other implementations, the light splitting element 43 may also be designed to reflect the second wave of light L2 and allow the first wave of light L1 ′ to pass through. At this time, the image processing device 5 at the rear of the light path and The lens group 6 is correspondingly arranged corresponding to the light emitting direction of the light splitting element 43.

Please refer to FIG. 6B again. As shown in FIG. 6B, the light source system 4 in this case may be a reflective light source system. In this embodiment, the light splitting element 43 has a reflective second wavelength band in response to the requirements of the reflective light source system. The light L2 has a characteristic of transmitting the first-wavelength light L1 ′. The first solid-state light-emitting element 41 and the second solid-state light-emitting element 42 are both disposed on one side of the spectroscopic element 43, and the phosphor device 40 is disposed on the other side of the spectroscopic element 43. Thereby, the first-band light L1 emitted by the first solid-state light-emitting element 41 can directly penetrate the spectroscopic element 43 and be projected to the phosphor device 40, and the first-band light L1 'emitted by the second solid-state light-emitting element 42 It is an image processing device 5 and a lens group 6 that are directly projected through the beam splitting element 43 and enter the rear end of the light path. At the same time, after the phosphor device 40 receives the first-band light L1 emitted by the first solid-state light-emitting element 41, it excitedly converts the first-band light L1 into the second-band light L2, and emits the light in the reverse direction of the incident direction. The second-band light L2 is projected onto the spectroscopic element 43 for reflection and enters the image processing device 5 and the lens group 6 at the rear end of the light path, that is, the incident direction of the first-band light L1 is opposite to the exit direction of the second-band light L2. .

As described above, when the first fluorescent agent 402 is a yellow fluorescent agent, a green fluorescent agent, or a yellow-green fluorescent agent, the second-band light L2 generated by the first-wavelength light L1 after excitation conversion is in a spectral range between The yellow-green light beam between 450 and 710 nanometers (nanometer, nm) is applied to transmit the green and red light in the second wavelength band light L2 in the above-mentioned spectral range through the color separation element of the image processing device 5 After separation, the separated red light and green light and the blue light of the first waveband light L1 'are projected and imaged in a time-sharing or color-splitting manner. Because the human eye is more sensitive to green light and less sensitive to red light, the fluorescer device 40 of the light source system 4 in this case can be designed according to requirements and has a plurality of sections, and the green light or red light can be adjusted with a filter. Illumination and brightness.

In addition, the first section 401 is preferably a reflective substrate, and the first section 401 has a reflection spectrum for the first color light C1 that is greater than the reflectance of aluminum for the first color light C1, or It has a reflection spectrum for the second color light C2 that is greater than the reflectance of aluminum for the second color light C2. In this case, the first section 401 can meet the actual needs of the phosphor device 40 to improve the reflectance of the first color light C1 or the second color light C2.

Please refer to FIG. 7B and FIG. 7C and cooperate with FIG. 6A, wherein FIG. 7B and FIG. 7C are schematic diagrams of the structure of the fluorescer device according to another embodiment of the present invention and the structure of the fluorescer device according to another embodiment of the present invention. schematic diagram. As shown in FIG. 6A, FIG. 7B, and FIG. 7C, the fluorescent device 40 of the present case may further include a first section 401 and a second section 404, and includes a first fluorescent agent 402 and a second fluorescent agent. A photosensitizer 405, wherein the first phosphor 402 is applied to the first section 401, and the second phosphor 405 is applied to the second section 404. In some embodiments, the first fluorescent agent 402 and the second fluorescent agent 405 may be, for example, but not limited to, a green fluorescent agent, a yellow fluorescent agent, or a yellow-green fluorescent agent, and the first fluorescent agent 402 and The components of the second phosphor 405 may be the same or different. When the components of the first fluorescent agent 402 and the second fluorescent agent 405 are the same, the structure is based on converting the first-wavelength light L1 into a second-wavelength light L2, such as the first-wavelength light in the blue-waveband. The L1 excitation is converted into the second wavelength light L2 between the green and red wavelength bands; when the components of the first fluorescent agent 402 and the second fluorescent agent 405 are similar or different, the first wavelength light L1 is structured by respectively The excitation is converted into two types of second-band light (not shown), and the two types of second-band light enter the back end of the system in sequence for use.

In other variations of the phosphor device 40, the phosphor device 40 may further include a first filter 403 and a second filter 406 on one side of the second light band L2. Adjacent to the first section 401 and the second section 404 of the phosphor device 40. In other embodiments, the first filter 403 is used to filter the first light beam in the second waveband light L2, so that the second light beam in the second waveband light L2 penetrates and projects into the light path; The two filters 406 are used to filter the second light beam in the second waveband light L2 so that the first light beam in the second waveband light L2 penetrates and is projected into the light path.

For example, when the second-band light L2 is between the green and red light bands (that is, green-yellow or yellow light), the first beam of the second-band light L2 is green and the second beam is red, so The first filter 403 filters green light so that red light passes through and projects into the light path, and the second filter 406 filters red light so that green light passes through and projects into the light path. In other words, the first filter 403 is substantially a red light filter, and the second filter 406 is substantially a green light filter, but it is not limited thereto. Of course, the first filter 403 and the second filter 406 can also be interchanged as required to change the optical properties such as the brightness and illuminance of the first light beam or the second light beam projected by the phosphor device 40, or the second section 404. The light-transmitting area that does not contain the color of the fluorescent agent is also taught in this case.

Please refer to FIG. 8A and cooperate with FIG. 6A, where FIG. 8A is a schematic diagram showing a structure of a display module according to a preferred embodiment of the present invention. As shown in FIG. 6A and FIG. 8A, the imaging module 52 of the image processing device 5 of the projection device 3 of the case is suitable for a 3-chips LCD projector to receive signals from the relay module. The first and second bands of light of the group 51, that is, the incident light I, passes through a dichroic element, such as a dichroic filter, to separate colored light. In this embodiment, the first dichroic mirror 5201 and the first The dichroic mirror 5202 separates the three primary colors. The first dichroic mirror 5201 has the characteristics of reflecting blue light and transmits green and red light, and the second dichroic mirror 5202 has the characteristic of reflecting green light and transmitting red light. Of characteristics. Therefore, the blue light portion of the incident light I is reflected by the first dichroic mirror 5201 and is projected to the first A reflecting mirror 5203 is reflected by the first reflecting mirror 5203 and is projected onto the first liquid crystal display unit 5204. The green light portion of the incident light I is transmitted through the first dichroic mirror 5201 and is then received by the second dichroic mirror 5202. Reflected and projected to the second liquid crystal display unit 5205; as for the red light portion of the incident light I, after passing through the first dichroic mirror 5201 and the second dichroic mirror 5202, it passes through the second reflective mirror 5207 and the third The reflecting mirror 5208 sequentially reflects and projects to the third liquid crystal display unit 5206. Finally, the image is sent to the rear light path through the two-color 稜鏡 5209 (X-Cube) of the display module 52, that is, the image is sent to the direction of the lens group 6.

Please refer to FIG. 8B, which is a schematic structural diagram of a display module according to another preferred embodiment of the present invention. As shown in FIG. 8B, in this embodiment, the display module 52 of the present case is a two-piece liquid crystal display projector, and includes the same first liquid crystal display unit 5204 and second liquid crystal display unit 5205 as the previous embodiment. As for the two-color 2095209, the transmission and reflection of incident light and even the blue light are the same as the concept of the embodiment shown in FIG. 8A, so it will not be repeated here. However, this embodiment can preferably cooperate with the foregoing fluorescent device having a plurality of sections to generate a plurality of second-wavelength lights, and use them in the display module 52 in a time-series manner, in detail, the second liquid crystal display unit 5205 series At the same time, the green and red parts of the incident light are received, and the green or red light is projected into the two-color 稜鏡 5209 in a time-sequential manner. The two-color 稜鏡 5209 then sends the first liquid crystal display unit 5204 and the second The images sent by the liquid crystal display unit 5205 are superimposed and sent to the rear light path.

Please refer to FIG. 9A in conjunction with FIG. 6A, where FIG. 9A is a schematic structural diagram of a display module according to another preferred embodiment of the present invention. As shown in FIGS. 6A and 9A, the imaging module 52 of the image processing device 5 of the projection device 3 of the present case is a imaging module suitable for a 3-chips DLP projector , Including the first 稜鏡 521, the second 稜鏡 522, and the third 稜鏡 523. The interface 527 of the first 稜鏡 521 and the second 稜鏡 522 is used to reflect the blue light emitted by the first digital micromirror 524, and the interface 528 of the second 稜鏡 522 and the third 稜鏡 523 is used to reflect the second The red light emitted by the digital micromirror 525 causes the blue light and the red light to be superimposed on the green light emitted by the third digital micromirror 526 after reflection, and sent to the rear light path.

Please refer to FIG. 9B, which is a schematic structural diagram of a display module according to another preferred embodiment of the present invention. As shown in FIG. 9B, in this embodiment, the display module 52 of the present case is a display module suitable for a two-chip digital light processing projector, and includes the same first 稜鏡 521 as the previous embodiment. , The third 稜鏡 523, the first digital micromirror 524, the third digital micromirror 526, and the interface 527 of the first 稜鏡 521 and the third 稜鏡 523, the propagation modes of light penetration and reflection are the same as those shown in Figure 9A. The illustrated embodiment has the same concept, so it will not be repeated here. However, the third digital micromirror 526 receives the green light and the red light, and reflects the green and red images to the third image 523 in accordance with the timing of the green and red light, and then reflects with the first digital micromirror 524. The blue light image is superimposed on the first light beam 521 and sent to the rear light path.

So far, the basic operation modes of the fluorescent device and the light source system have been fully described. In the following, several embodiments will be described to increase the light intensity of the fluorescent device of the reflective light source system.

Please refer to FIG. 7A and FIG. 10A, wherein FIG. 10A is a schematic diagram showing a structure of a phosphor device including a reflective substrate according to an embodiment of the present invention. As shown in FIGS. 7A and 10A, the phosphor device 40 of the present case includes a reflective substrate 400 and a first fluorescent layer 4001, and the reflective substrate 400 has a first section 401. The first fluorescent layer 4001 includes a first fluorescent agent and a fourth fluorescent agent. The first fluorescent agent is the same as the first fluorescent agent of the foregoing embodiment, but it is clearly marked in Figures 10A and 10B. In the figure, the first phosphor is shown by the element symbol Y, and the fourth phosphor is shown by the element symbol R.

Please refer to Fig. 4, Fig. 7A and Fig. 10A at the same time. The first fluorescer Y is formed in the first section 401 to convert the first band of light L1 to the second band of light L2, and then emit the second band of light L2 to the optical path P, where the spectrum of the second band of light L2 The range includes at least a first color light C1 and a second color light C2, so that the second wavelength light L2 is separated in the light path P to obtain a second color light C2. The fourth fluorescent agent R is distributed between the first fluorescent agents Y to convert the first-wavelength light L1 to the second-color light C2, and to increase the light intensity of the second-color light C2. In addition, the first section 401 has a reflection spectrum for the second color light C2 having a reflectance greater than that of aluminum for the second color light C2.

Please refer to FIG. 10B, where FIG. 10B is a schematic structural view showing that the phosphor device shown in FIG. 10A further includes a second fluorescent layer. In some embodiments, the fluorescent device 40 of the present case further includes a second fluorescent layer 4002, wherein the second fluorescent layer 4002 is disposed on the first fluorescent layer 4001, and the second fluorescent layer 4002 includes the first The fluorescer Y converts the first-band light L1 to the second-band light L2 and reduces the energy of the first-band light L1, but is not limited thereto.

According to the idea of this case, the first wavelength light L1 is blue or ultraviolet light, the second wavelength light L2 has a wavelength between 450 nm and 710 nm, the first color light C1 is green, and the second color light C2 is Red light, the first fluorescent agent Y is a green fluorescent agent, a yellow fluorescent agent, or a yellow-green fluorescent agent, and the fourth fluorescent agent R is a red fluorescent agent. The spectral range of the second color light C2 of the second wavelength light L2 and the spectral range of the second color light C2 converted by the fourth phosphor R at least partially overlap. In addition, the fourth fluorescent agent R can be mixed with the first fluorescent agent Y into a mixture by a mixing method.

In other embodiments, the present invention provides a fluorescer device, which includes a reflective substrate with at least two or more reflection spectrums, which can specialize the reflection spectrum for a specific color light to provide a full-band reflectance higher than that of aluminum. The reflectance of the fluorescent device, and then achieve the maximum output of colored light in each band. Please refer to FIG. 11A and FIG. 11B and cooperate with FIG. 4, wherein FIG. 11A is a schematic diagram showing the structure of a fluorescent device according to a preferred embodiment of the present invention, and FIG. 11B is a first diagram showing the first embodiment shown in FIG. 11A Segment and second segment and reflection spectrum of aluminum. As shown in FIGS. 4, 11A, and 11B, the phosphor device 40 includes a first segment 401, a first phosphor 402, a second segment 404, and a second phosphor 405. The first section 401 and the second section 404 are spliced into a reflective substrate, wherein the reflective substrate is a glass substrate, a borosilicate glass substrate, a quartz substrate, a sapphire substrate, a calcium fluoride substrate, a A silicon substrate, a silicon carbide substrate, a graphene thermally conductive substrate, an alumina substrate or a boron nitride substrate, or a substrate including at least one metallic material, wherein the metallic material is aluminum, magnesium, copper, silver or nickel, But not limited to this. The first phosphor 402 is applied to the first segment 401, the second phosphor 405 is applied to the second segment 404, and one of the first segment 401 and the second segment 404 has Reflectance of the first color light C1 The reflection spectrum that is larger than the reflectance of aluminum to the first color light C1, and the other has a reflection spectrum that is larger than that of aluminum to the second color light C2. Specifically, it is formed with a metal reflective layer on the first section 401 and the second section 404 of the reflective substrate, and then plated with a first dielectric film layer and a second dielectric film layer, respectively. The reflection spectrum of the metal reflection layer is adjusted on the metal reflection layer corresponding to the first section 401 and the second section 404.

Referring to FIG. 11B, it is shown that the first dielectric film layer has a better reflectance spectrum for the green light range than the second dielectric film layer, and the second dielectric film layer has the red light range for the first dielectric film. Layer-best reflectivity spectrum. At the same time, when the first color light C1 is green and the second color light C2 is red, it is obvious that the reflectance of the green light in the first section 401 and the reflectance of the red light in the second section 404 will be excellent. In the first section 401 and the second section 404, only the reflectance of the aluminum metal reflective layer is used.

Furthermore, taking the high-energy laser power excitation of 209 watts as an example, if the first fluorescent agent 402 and the second fluorescent agent 405 are both yellow fluorescent agents, compared with the conventional method using only aluminum reflective layers The light output efficiency, the light output efficiency of the first section 401 of the fluorescer device 40 for green light and the light output efficiency of the second section 404 for red light are increased by 10.5% and 1.7%, respectively. On the other hand, if the first fluorescent agent 402 is a green fluorescent agent and the second fluorescent agent 405 is a yellow fluorescent agent, compared with the conventional light emitting efficiency using only an aluminum metal reflective layer, the fluorescent agent device of this case The light output efficiency of the first section 401 to green light of 40 and the light output efficiency of the second section 404 to red light are increased by 9.3% and 2.9%, respectively.

Please refer to FIG. 12A and FIG. 12B and cooperate with FIG. 4, where FIG. 12A is a schematic diagram showing the structure of a fluorescer device according to another preferred embodiment of the present invention, and FIG. 12B is another preferred embodiment of the present invention. Schematic diagram of the phosphor device. As shown in FIG. 4, FIG. 12A, and FIG. 12B, the fluorescent device 40 of this case, in addition to the aforementioned first section 401, first fluorescent agent 402, second section 404, and second fluorescent light The agent 405 further includes a third section 407, and the third section 407 is a reflection section or a light transmission section for directly reflecting or transmitting the first wave of light L1. Wherein, the light-transmitting section is, for example, a hollow structure or a glass plate coated with an optical film that allows the light in the first wavelength band L1 to pass through. In some embodiments, the first The components of the fluorescent agent 402 and the second fluorescent agent 405 are the same or different. The first fluorescent agent 402 is a yellow fluorescent agent or a yellow-green fluorescent agent, and the second fluorescent agent 405 is a yellow fluorescent agent or a yellow fluorescent agent. Green fluorescent agent. Further, the phosphor device 40 of the present case may include a fourth section 408 and a third phosphor 409, wherein the third phosphor 409 is coated on the fourth section 408. In some embodiments, the components of any one of the first fluorescent agent 402, the second fluorescent agent 405, and the third fluorescent agent 408 may be the same or different from each other. The first fluorescent agent 402 is yellow. A fluorescent agent or a yellow-green fluorescent agent, the second fluorescent agent 405 is a yellow fluorescent agent or a yellow-green fluorescent agent, and the third fluorescent agent 408 is a yellow fluorescent agent or a yellow-green fluorescent agent.

In other embodiments, the first fluorescent agent 402 is a yellow fluorescent agent or a yellow-green fluorescent agent, and the second fluorescent agent 405 is a red fluorescent agent or a green fluorescent agent, but it is not limited thereto. Further, the fluorescent device 40 of the present case may include a fourth section 408 and a third fluorescent agent 409, wherein the third fluorescent agent 409 is coated on the fourth section 408, the first fluorescent agent 402 and The composition of the third fluorescent agent 409 is the same or different, and the third fluorescent agent 409 is a yellow fluorescent agent or a yellow-green fluorescent agent.

In other words, the phosphor device 40 of the present case can be regarded as including a reflective substrate, a first phosphor 402, and a second phosphor 405, and the first section 401 of the reflective substrate has a reflection for the first color light C1. The reflectance spectrum of aluminum having a reflectance greater than that of the first color light C1, the second section 404 has a reflectance spectrum for the second color light C2 that is greater than the reflectance of aluminum for the second color light C2, and the third section 407 The light spectrum L1 directly reflects or transmits, wherein the reflection spectrum of the first section 401, the reflection spectrum of the second section 404, and the reflection spectrum of the third section 407 are different from each other.

In addition, the first phosphor 402 is coated on the first section 401 to convert the first band light L1 into the second band light L2. The spectral range of the second band light L2 includes at least the first color light C1. . The second fluorescer 405 is coated on the second section 404 to convert the first-wavelength light L1 into the third-wavelength light L3. The spectral range of the third-wavelength light L3 includes at least the second color light C2. A metal reflective layer is formed on the first section 401, the second section 404, and the third section 407 at the same time. The metal reflective layer is an aluminum reflective layer or a silver reflective layer. The first section 401 includes at least a first intermediary layer. Electrical film layer, the second section 404 includes at least a first Two dielectric film layers, and the first dielectric film layer and the second dielectric film layer are plated on the metal reflection layer to adjust the reflection spectrum of the metal reflection layer.

In some embodiments, the first color light C1 is green light, the second color light C2 is red light, the first wavelength light L1 is blue or ultraviolet light, the second wavelength light L2 is green or yellow light, and the third wavelength light L3 is red or yellow, the first fluorescent agent 402 is a green fluorescent agent, a yellow fluorescent agent, or a yellow-green fluorescent agent, and the second fluorescent agent 405 is a red fluorescent agent, a yellow fluorescent agent, or a yellow fluorescent agent. Green fluorescent agent.

According to the concept of the present case, the fluorescent device 40 of the present case further includes a third fluorescent agent 409, and the reflective substrate further includes a fourth section 408, wherein the third fluorescent agent 409 is coated on the fourth section 408 To convert the first-wavelength light L1 into the fourth-wavelength light L4. The spectral range of the fourth-wavelength light L4 includes at least the first-color light C1 and the second-color light C2. Specifically, the fourth wavelength of light L4 is yellow, the third fluorescent agent 409 is yellow fluorescent or yellow-green fluorescent agent, and the fourth segment 408 has a reflectance spectrum for yellow light that is greater than the reflectance of aluminum for yellow light. The reflection spectrum of the first section 401, the reflection spectrum of the second section 404, the reflection spectrum of the third section 407, and the reflection spectrum of the fourth section 408 are different from each other.

In summary, the present invention provides a fluorescer device that uses a first fluorescer to convert light in a first wavelength band into light in a second wavelength band with a broader wavelength to an optical path, and then causes light in the second wavelength band to be in the optical path. The first color light or the second color light can be obtained by color separation. The first color light or the second color light can be separated according to actual needs, which makes the design of the phosphor device more diverse, and can reduce manufacturing costs, reduce product size, and Improve color purity. At the same time, through a reflective substrate with at least two types of reflection spectrum, the reflection spectrum can be specialized for a specific color of light to provide a fluorescent device that has a reflectance in all bands higher than that of aluminum, thereby providing colored light in each band. The effect of maximum output.

Even though the present invention has been described in detail in the above embodiments and can be modified by anyone skilled in the art, it is not inferior to those intended to be protected by the scope of the attached patent.

Claims (22)

  1. A fluorescer device is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes: a first section; and a first fluorescer coated on the first A section; wherein the first fluorescer receives the first band of light, converts the first band of light into a second band of light, and emits the second band of light to the optical path, where the first The spectral range of the two-band light includes at least a first color light and a second color light, so that the second color light is separated in the light path to obtain the first color light or the second color light.
  2. The fluorescer device according to item 1 of the scope of patent application, wherein the first section is a reflective substrate, and the first section has a reflectance for the first color light greater than aluminum for the first The reflectance spectrum of the colored light's reflectance, or has a reflectance spectrum for the second colored light that is greater than the reflectance of aluminum for the second colored light.
  3. The phosphor device according to item 1 of the scope of patent application, further comprising a second section and a second fluorescent agent, wherein the second fluorescent agent is coated on the second section, at least the first A section and the second section are spliced into a reflective substrate, and one of the first section and the second section has a reflectance for the first color light greater than that for aluminum for the first color. The reflection spectrum of the reflectance of light, the other has a reflection spectrum for the second color light that is greater than the reflectance of aluminum for the second color light.
  4. The fluorescer device described in item 3 of the patent application scope further includes a third section, and the third section is a reflection section or a transmission section for directly reflecting or transmitting the light in the first wavelength band. .
  5. The fluorescer device according to item 4 of the scope of the patent application, wherein the components of the first fluorescer and the second fluorescer are the same or different, and the first fluorescer is yellow fluorescer or yellow-green A fluorescent agent, and the second fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent.
  6. The phosphor device according to item 5 of the scope of patent application, further comprising a fourth segment and a third phosphor, wherein the third phosphor is coated on the fourth segment, and the first The fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent, the second fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent, and the third fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent. Agent.
  7. The fluorescer device according to item 4 of the scope of patent application, wherein the first fluorescer is yellow fluorescer or yellow-green fluorescer, and the second fluorescer is red fluorescer or green fluorescein Agent.
  8. The phosphor device according to item 7 of the scope of patent application, further comprising a fourth segment and a third phosphor, wherein the third phosphor is coated on the fourth segment, and the first The components of the fluorescent agent and the third fluorescent agent are the same or different, and the third fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent.
  9. A fluorescer device is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes at least: a reflective substrate including a first section, wherein a metal reflective layer system The first section is formed on the reflective substrate, and the first section has a dielectric film layer. The dielectric film layer is plated on the metal reflection layer for adjusting the metal reflection layer. A reflection spectrum; and a first fluorescent agent coated on the first section; wherein the first fluorescent agent is yellow, green, or yellow-green fluorescent agent, and the first fluorescent agent receives the first wavelength band Light, and converting the first-wavelength light into a second-wavelength light, and the spectral range of the second-wavelength light includes green light and red light, and then emitting the second-wavelength light to the optical path to make the second-wavelength light Light is separated in the light path to obtain at least two kinds of colored light and one of the colored lights is red; wherein the dielectric film layer has a reflection spectrum for the red light spectral range, and the phosphor device further includes a spectroscopic element. , The light splitting element is arranged at the front end of the light path The spectral optical elements reflecting the first wavelength band and the second band or reflected light passes through the second optical wavelength band of the first wavelength band and light penetration.
  10. A phosphor device is suitable for a light source system that emits a first wave of light and is provided with a light path. The phosphor device includes: a reflective substrate including a first section; and a first phosphor layer. Including: a first fluorescer formed in the first section to convert the first band of light into a second band of light, and then emitting the second band of light to the light path, wherein the second band The spectral range of light includes at least a first color light and a second color light, so that the second wavelength light is separated in the light path to obtain the second color light; and a fourth fluorescent agent is distributed on the first Between the phosphors, the light in the first wavelength band is converted into the second color light, and the light intensity of the second color light is increased; wherein a metal reflective layer is formed in the first section of the reflective substrate, and The first section includes a dielectric film layer, which is plated on the metal reflection layer to adjust the reflection spectrum of the metal reflection layer to the second color light.
  11. The fluorescer device according to item 10 of the patent application scope further includes a second fluorescent layer, wherein the second fluorescent layer is disposed on the first fluorescent layer, and the second fluorescent layer includes the second fluorescent layer. The first fluorescer converts the light in the first waveband into the light in the second waveband and reduces the energy of the light in the first waveband.
  12. The fluorescer device according to item 10 of the scope of patent application, wherein the first band of light is blue light or ultraviolet light, and the wavelength of the second band of light is between 450 nm and 710 nm. The color light is green light, the second color light is red light, the first fluorescent agent is a yellow fluorescent agent or a yellow-green fluorescent agent, and the fourth fluorescent agent is a red fluorescent agent.
  13. The fluorescer device according to item 10 of the scope of patent application, wherein the first section has a reflection spectrum for the second color light having a reflectance greater than that of aluminum for the second color light.
  14. A fluorescer device is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes a reflective substrate including a first section, a second section, and a The third section, wherein the first section has a reflectance for a first color light that is greater than the reflectance of aluminum for the first color light, and the second section has a reflectance for a second color light A reflection spectrum larger than the reflectance of aluminum to the second color light, and the third section directly reflects the first band of light; a first fluorescer is coated on the first section to apply the first A band of light is converted into a second band of light, wherein the spectral range of the second band of light includes at least the first color light; and a second fluorescer is applied to the second section to apply the first light. A band of light is converted into a third band of light, wherein the spectral range of the third band of light includes at least the second colored light; wherein the reflection spectrum of the first section, the reflection spectrum of the second section, and the third The reflection spectra of the segments are different from each other; A layer is formed on the first section, the second section and the third section of the reflective substrate, wherein the first section includes at least a first dielectric film layer, and the second section includes at least A second dielectric film layer, and the first dielectric film layer and the second dielectric film layer are plated on the metal reflection layer, respectively, for adjusting the metal reflection formed in the first section; The reflection spectrum of the layer for the first color light and the reflection spectrum of the metal reflection layer formed in the second section for the second color light are adjusted.
  15. The fluorescer device according to item 14 of the scope of the patent application, wherein the first color light is green light, the second color light is red light, the first wavelength light is blue or ultraviolet light, and the second wavelength light is Green or yellow light, the third band of light is red or yellow light, the first fluorescent agent is green fluorescent agent, yellow fluorescent agent, or yellow-green fluorescent agent, and the second fluorescent agent is red Fluorescent, yellow or yellow-green fluorescent.
  16. According to the phosphor device described in item 14 of the scope of patent application, the phosphor device further includes a third phosphor, and the reflective substrate further includes a fourth section, wherein the third phosphor is coated on the first phosphor. Four sections for converting the first-wavelength light into a fourth-wavelength light, wherein the spectral range of the fourth-wavelength light includes at least the first-color light and the second-color light.
  17. The fluorescer device according to item 16 of the scope of the patent application, wherein the fourth band of light is yellow light, the third fluorescer is yellow fluorescer or yellow-green fluorescer, and the fourth section has a The reflectance of yellow light is greater than the reflectance spectrum of aluminum to yellow light, and the reflectance spectrum of the first section, the reflectance spectrum of the second section, the reflectance spectrum of the third section, and the reflectance spectrum of the fourth section are Different from each other.
  18. The fluorescer device according to item 14 of the scope of the patent application, wherein the reflective substrate is a glass substrate, a borosilicate glass substrate, a quartz substrate, a sapphire substrate, a calcium fluoride substrate, a silicon substrate, a silicon carbide substrate, and graphene. A substrate, an alumina substrate, a boron nitride substrate, or a substrate including at least one metallic material, wherein the metallic material is aluminum, magnesium, copper, silver, or nickel.
  19. A fluorescer device is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes: a reflective substrate including a first section and a second section; A first fluorescer is coated on the first section to convert the first band of light into a second band of light, wherein the spectral range of the second band of light includes at least a first color light and a first light. Two-color light; and a second fluorescer, coated on the second section, for converting the first band of light into a third band of light, wherein the spectral range of the third band of light includes at least the first Colored light and the second colored light; wherein the spectral range of the second waveband light and the spectral range of the third waveband light at least partially overlap; and wherein a metal reflective layer is formed on the first of the reflective substrate Section and the second section, wherein the first section includes at least a first dielectric film layer, the second section includes at least a second dielectric film layer, and the first dielectric film layer and the A second dielectric film layer is plated on the metal reflective layer to adjust the metal Reflective layer of the reflective spectrum, spectral coefficients of reflection of such dielectric film layer differ from each other.
  20. The fluorescer device according to item 19 of the scope of patent application, wherein the first section has a reflection spectrum for the first color light having a reflectance greater than that for the second color light.
  21. A fluorescer device is suitable for a light source system that emits a first wave of light and is provided with a light path. The fluorescer device includes at least: a reflective substrate including a first section and a second section; A first fluorescent agent is applied to the first section; and a second fluorescent agent is applied to the second section; wherein the first fluorescent agent and the second fluorescent agent are yellow and green Or a yellow-green fluorescent agent, the first fluorescent agent and the second fluorescent agent receive the first band of light, and respectively convert the first band of light into the second band of light, the spectrum of the second band of light The ranges partially overlap and include green light and red light; wherein the components of the first fluorescent agent and the second fluorescent agent are different, and the structure is configured to respectively convert the light in the first wavelength band into two kinds of the second wavelength band. Light enters the light path in a sequential manner, and at least two kinds of colored light are obtained by color separation, and one of the colored lights is red; and wherein a metal reflective layer is formed on the first section of the reflective substrate and the A second section, wherein the first section includes at least a first dielectric film layer, the The two sections include at least a second dielectric film layer, and the first dielectric film layer and the second dielectric film layer are plated on the metal reflection layer to adjust the reflection spectrum of the metal reflection layer. .
  22. The fluorescer device according to item 21 of the scope of patent application, wherein the first section and the second section have different reflection spectrums, and the first section has a red light range larger than the second area. Duan Jia's reflectance spectrum.
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US15/403,995 US10310363B2 (en) 2011-09-22 2017-01-11 Phosphor device with spectrum of converted light comprising at least a color light
US15/816,202 US10281810B2 (en) 2011-09-22 2017-11-17 Projection apparatus comprising phosphor wheel coated with phosphor agents for converting waveband light

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