CN203120067U - Novel laser projection display device - Google Patents
Novel laser projection display device Download PDFInfo
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- CN203120067U CN203120067U CN 201320153826 CN201320153826U CN203120067U CN 203120067 U CN203120067 U CN 203120067U CN 201320153826 CN201320153826 CN 201320153826 CN 201320153826 U CN201320153826 U CN 201320153826U CN 203120067 U CN203120067 U CN 203120067U
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Abstract
The utility model discloses a novel laser projection display device which comprises a high-power laser used for amplifying fundamental frequency light omega 1 until nonlinear six-wave mixing occurs and generates signal light omega 2 and signal light omega 3. An output end of the high-power laser is connected with a frequency conversion and transmission control device used for performing frequency conversion to the fundamental frequency light omega 1, the signal light omega 2 and the signal light omega 3 which are input to generate RGB (red, green and blue) tricolor modulating signals to be output, and an output end of the frequency conversion and transmission control device is connected with a scanning and projecting device used for projection display. The high-power laser is used as a tricolor laser source, RGB tricolors are generated through frequency conversion, and the novel laser projection display device has the evident advantages in aspects of improving stability of a light source system and lowering manufacturing cost.
Description
[technical field]
The utility model relates to a kind of new pattern laser projection display equipment.
[background technology]
Laser display adopts the tricolor laser of high saturation as display light source, has that gamut range is wide, life-span length, environmental protection, an advantage such as energy-conservation, more and more is subjected to people's attention.The light source that present stage is used for laser display is semiconductor pumped solid-state laser, produces the continuous laser that wavelength is in three wave bands of red, green, blue respectively, by TV signal control tricolor laser scan image.But the colour gamut coverage rate of laser television is more than 90% of intelligent's wink territory scope in theory, and this domain coverage ratio 62% than present LED TV has obviously improved a class.The raising of colour gamut coverage rate not only can make television image seem true more, the sense that has levels, and the definition of picture also has lifting by a relatively large margin.
Simultaneously, the manufacturing stubborn problem of oversize LCD TV, therefore super large screen TV is actually rare, expensive on the market.For laser television, owing to possess advantages such as good directionality, brightness height, screen can be done greatly.In addition, it is not linear significantly improving that large screen television is compared the required laser energy of small screen TV, and the required energy of large screen television only need the energy more required than small screen TV improves a little that some are just passable.Therefore, the flat light source cost that this means the laser television of large-screen is descending.
The employed light source of the laser television of current popularization and research and development is based on three semiconductor pumped solid-state lasers, and these three lasers work alone, and are independent of each other.Phase place and intensity all are random fluctuations, have increased the uncertainty of display effect.
Therefore, be necessary to solve as above problem.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, a kind of new pattern laser projection display equipment is provided, it passes through a superpower laser as the tricolor laser light source, produce the red, green, blue three primary colors by frequency translation, it improves the light-source system stability, reduction manufacturing cost aspect has significant advantage.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of new pattern laser projection display equipment includes for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Superpower laser 100, described superpower laser 100 outputs be connected with for to the input fundamental frequency light ω
1, flashlight ω
2With ideler frequency light ω
3Carry out frequency translation and produce the frequency translation transmission control unit 200 of red-green-blue modulation signal output, described frequency translation transmission control unit 200 outputs are connected with the scanning projection device 300 for Projection Display.
Described superpower laser 100 includes for output fundamental frequency light ω
1Laser oscillator 101, the output of described laser oscillator 101 is connected with the input of an optical isolator 102, the output of described optical isolator 102 is connected with for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Fiber amplifier 103, also be connected with on the described fiber amplifier 103 be used to the pumping source 104 that pump energy is provided, the output of fiber amplifier 103 is connected with the input of frequency translation transmission control unit 200 as the output of superpower laser 100.
Described frequency translation transmission control unit 200 comprises the frequency divider 201 that input is connected with superpower laser 100 outputs, described frequency divider 201 is provided with three frequency division output terminal mouths, be connected with respectively and produce red for mixing, green, first frequency mixer 202 of blue three primary colors band of light, second frequency mixer 203, three-mixer 204, described first frequency mixer, 202 outputs, second frequency mixer, 203 outputs, three-mixer 204 outputs are connected with the first sound-optic modulator 205 that is subjected to video control signal control respectively, second sound-optic modulator 206, the 3rd acousto-optic modulator 207, described first sound-optic modulator 205 outputs, second sound-optic modulator 206 outputs and the 3rd acousto-optic modulator 207 outputs are as the output port of frequency translation transmission control unit 200.
Described scanning projection device 300 includes input and is connected beam merging apparatus 301 with frequency translation transmission control unit 200 outputs, described beam merging apparatus 301 outputs are connected with the scanning means 302 that is used for carrying out row and column scanning that is subjected to scan control signal control, and the output of described scanning means 302 is connected with for the projection screen 304 of realizing laser display.
Compared with prior art, the beneficial effects of the utility model are:
1, compare with all solid state light source technology of existing many platform independent for laser display, the LASER Light Source of this device originates from the separate unit superpower laser, and it is improving the light-source system stability, is reducing and have remarkable result aspect the manufacturing cost.
2, this device is by the fundamental frequency light ω of frequency translation transmission control unit to superpower laser output
1, flashlight ω
2With ideler frequency light ω
3Carry out frequency inverted and transmission control, produce the red, green, blue three primary colors, its overall construction design novelty, it is convenient to implement, and practicality is good.
3, this device with laser switch and regulate the video control signal of light intensity and sweep signal separately, the laser brilliance control is flexible, the synchronous stability of signal is high, the scanning rotating speed can be controlled arbitrarily, control requires low to the scanning speed stabilizing.
[description of drawings]
Fig. 1 is structure principle chart of the present utility model.
[embodiment]
Be described in further detail by the utility model feature of embodiment and other correlated characteristic below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
Referring to shown in Figure 1, a kind of new pattern laser projection display equipment includes for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Superpower laser 100, described superpower laser 100 outputs be connected with for to the input fundamental frequency light ω
1, flashlight ω
2With ideler frequency light ω
3Carry out frequency translation and produce the frequency translation transmission control unit 200 of red-green-blue modulation signal output, described frequency translation transmission control unit 200 outputs are connected with the scanning projection device 300 for Projection Display.
Described superpower laser 100 includes for output fundamental frequency light ω
1Laser oscillator 101, the output of described laser oscillator 101 is connected with the input of an optical isolator 102, the output of described optical isolator 102 is connected with for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Fiber amplifier 103, also be connected with on the described fiber amplifier 103 be used to the pumping source 104 that pump energy is provided, the output of fiber amplifier 103 is connected with the input of frequency translation transmission control unit 200 as the output of superpower laser 100.
As mentioned above, in the present embodiment, the output wavelength that described laser oscillator 101 adopts is 1036nm, repetition rate is in order of megahertz, pulse duration is in tens of psecs, described pumping source 104 adopts high-power semiconductor laser, its centre wavelength is 976nm, needs according to 103 pairs of power outputs of fiber amplifier can connect many pumping sources, the laser amplification medium that described fiber amplifier 103 adopts is to have the nonlinear optical fiber that the source doping particle is arranged, and this optical fiber not only can be by having source particles to mix and the high power pump light of pumping source 104 is realized fundamental frequency light ω that laser oscillator 101 is exported
1Amplification, and can be with the high power fundamental frequency light ω after amplifying
1Convert the flashlight ω of other wave band to
2With ideler frequency light ω
3After export to frequency translation transmission control unit 200, the synchronous laser of this multi-wavelength produces comes from non-linear six wave mixing process, i.e. ω
3=3 * ω
2-2 * ω
1, and flashlight ω
2Centre frequency ω
2The parameter that depends on fiber amplifier 103 as the diameter of core diameter and covering and the size of numerical aperture, adopts 9/128 optical fiber in the present embodiment, and numerical aperture NA=0.20 is example, as flashlight ω
2At LP
22When transmitting in the pattern, its corresponding wavelength is 827nm, draws ideler frequency light ω
3Corresponding wavelength is 594nm.
Described frequency translation transmission control unit 200 comprises the frequency divider 201 that input is connected with superpower laser 100 outputs, described frequency divider 201 is provided with three frequency division output terminal mouths, be connected with respectively and produce red for mixing, green, first frequency mixer 202 of blue three primary colors band of light, second frequency mixer 203, three-mixer 204, described first frequency mixer, 202 outputs, second frequency mixer, 203 outputs, three-mixer 204 outputs are connected with the first sound-optic modulator 205 that is subjected to video control signal control respectively, second sound-optic modulator 206, the 3rd acousto-optic modulator 207, described first sound-optic modulator 205 outputs, second sound-optic modulator 206 outputs and the 3rd acousto-optic modulator 207 outputs are as the output port of frequency translation transmission control unit 200.
As mentioned above, the high power fundamental frequency light ω after will amplifying by frequency divider 201
1, flashlight ω
2With ideler frequency light ω
3Export from three ports with different splitting ratios, produce the red, green, blue tricolor laser by first frequency mixer 202, second frequency mixer 203, three-mixer 204 respectively.
As mentioned above, the ruddiness in the three primary colors results from first frequency mixer 202, and optical mixing process is fundamental frequency light ω
1With flashlight ω
2Elder generation's difference frequency is frequency multiplication, i.e. 2 * (2 * ω again
1-ω
2) → 693nm then, after the light path switch control and light intensity adjustment of the ruddiness of output by first sound-optic modulator 205, exports to scanning projection device 300 and carries out Projection Display.
As mentioned above, the green glow in the three primary colors results from second frequency mixer 203, and optical mixing process is fundamental frequency light ω
1Frequency multiplication, i.e. 2 * ω
1→ 518nm then, after the light path switch control and light intensity adjustment of the green glow of output by second sound-optic modulator 206, exports to scanning projection device 300 and carries out Projection Display.
As mentioned above, the blue light in the three primary colors results from the three-mixer 204, and optical mixing process is flashlight ω
2Frequency multiplication, i.e. 2 * ω
2→ 413.5nm then, after the light path switch control and light intensity adjustment of the blue light of output by the 3rd acousto-optic modulator 207, exports to scanning projection device 300 and carries out Projection Display.
Described scanning projection device 300 includes input and is connected beam merging apparatus 301 with frequency translation transmission control unit 200 outputs, described beam merging apparatus 301 outputs are connected with the scanning means 302 that is used for carrying out row and column scanning that is subjected to scan control signal control, and the output of described scanning means 302 is connected with for the projection screen 304 of realizing laser display.
As mentioned above; what this case was protected is a kind of new pattern laser projection display equipment; it is by adopting the synchronous high power laser light of polychrome as light source; by the synchronous high power laser light of polychrome being carried out frequency inverted and transmission control; video control signal and the sweep signal of laser switch and adjusting light intensity are separated; its laser brilliance control is flexible; the stability height that signal is synchronous; the scanning rotating speed can be controlled arbitrarily; control requires low to the scanning speed stabilizing; compare with all solid state light source technology of existing many platform independent for laser display; the laser of this device originates from a separate unit impulse wave LASER Light Source, in structural design; has clear superiority on reliability and the practicality.All technical schemes identical or close with this case structure all are shown in the protection range that falls into this case.
Claims (5)
1. new pattern laser projection display equipment is characterized in that including for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Superpower laser (100), described superpower laser (100) output be connected with for to the input fundamental frequency light ω
1, flashlight ω
2With ideler frequency light ω
3Carry out frequency translation and produce the frequency translation transmission control unit (200) of red-green-blue modulation signal output, described frequency translation transmission control unit (200) output is connected with the scanning projection device (300) for Projection Display.
2. a kind of new pattern laser projection display equipment according to claim 1 is characterized in that described superpower laser (100) includes for output fundamental frequency light ω
1Laser oscillator (101), the output of described laser oscillator (101) is connected with the input of an optical isolator (102), the output of described optical isolator (102) is connected with for fundamental frequency light ω
1Be amplified to non-linear six wave mixings generation flashlight ω takes place
2With ideler frequency light ω
3Fiber amplifier (103), also be connected with on the described fiber amplifier (103) be used to the pumping source that pump energy is provided (104), the output of fiber amplifier (103) is connected with the input of frequency translation transmission control unit (200) as the output of superpower laser (100).
3. a kind of new pattern laser projection display equipment according to claim 1 and 2, it is characterized in that described frequency translation transmission control unit (200) comprises the frequency divider (201) that input is connected with superpower laser (100) output, described frequency divider (201) is provided with three frequency division output terminal mouths, be connected with respectively and produce red for mixing, green, first frequency mixer (202) of blue three primary colors band of light, second frequency mixer (203), three-mixer (204), described first frequency mixer (202) output, second frequency mixer (203) output, three-mixer (204) output is connected with the first sound-optic modulator (205) that is subjected to video control signal control respectively, second sound-optic modulator (206), the 3rd acousto-optic modulator (207), described first sound-optic modulator (205) output, second sound-optic modulator (206) output and the 3rd acousto-optic modulator (207) output are as the output port of frequency translation transmission control unit (200).
4. according to claim 1 or 2 any described a kind of new pattern laser projection display equipments, it is characterized in that described scanning projection device (300) includes input and is connected beam merging apparatus (301) with frequency translation transmission control unit (200) output, described beam merging apparatus (301) output is connected with the scanning means (302) that is used for carrying out row and column scanning that is subjected to scan control signal control, and the output of described scanning means (302) is connected with for the projection screen (304) of realizing laser display.
5. a kind of new pattern laser projection display equipment according to claim 3, it is characterized in that described scanning projection device (300) includes input and is connected beam merging apparatus (301) with frequency translation transmission control unit (200) output, described beam merging apparatus (301) output is connected with the scanning means (302) that is used for carrying out row and column scanning that is subjected to scan control signal control, and the output of described scanning means (302) is connected with for the projection screen (304) of realizing laser display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153826 CN203120067U (en) | 2013-03-30 | 2013-03-30 | Novel laser projection display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153826 CN203120067U (en) | 2013-03-30 | 2013-03-30 | Novel laser projection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203120067U true CN203120067U (en) | 2013-08-07 |
Family
ID=48900377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153826 Withdrawn - After Issue CN203120067U (en) | 2013-03-30 | 2013-03-30 | Novel laser projection display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227927A (en) * | 2013-03-30 | 2013-07-31 | 广东汉唐量子光电科技有限公司 | Laser projection display device |
| CN104536245A (en) * | 2014-11-11 | 2015-04-22 | 深圳市亿思达科技集团有限公司 | A Fiber Bragg Grating(FGB) based laser projector light source system |
| CN111025827A (en) * | 2018-10-09 | 2020-04-17 | 成都理想境界科技有限公司 | Laser modulation device, laser light source, scanning display device and projection system |
| CN113163180A (en) * | 2014-12-29 | 2021-07-23 | 奇跃公司 | Light projector using acousto-optic control device |
-
2013
- 2013-03-30 CN CN 201320153826 patent/CN203120067U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227927A (en) * | 2013-03-30 | 2013-07-31 | 广东汉唐量子光电科技有限公司 | Laser projection display device |
| CN103227927B (en) * | 2013-03-30 | 2015-06-03 | 广东汉唐量子光电科技有限公司 | Laser projection display device |
| CN104536245A (en) * | 2014-11-11 | 2015-04-22 | 深圳市亿思达科技集团有限公司 | A Fiber Bragg Grating(FGB) based laser projector light source system |
| CN113163180A (en) * | 2014-12-29 | 2021-07-23 | 奇跃公司 | Light projector using acousto-optic control device |
| CN111025827A (en) * | 2018-10-09 | 2020-04-17 | 成都理想境界科技有限公司 | Laser modulation device, laser light source, scanning display device and projection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |