CN202339898U - Three-primary mixed color laser CRT (Cathode Ray Tube) adopting laminar-flow electron gun - Google Patents
Three-primary mixed color laser CRT (Cathode Ray Tube) adopting laminar-flow electron gun Download PDFInfo
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- CN202339898U CN202339898U CN2011204250968U CN201120425096U CN202339898U CN 202339898 U CN202339898 U CN 202339898U CN 2011204250968 U CN2011204250968 U CN 2011204250968U CN 201120425096 U CN201120425096 U CN 201120425096U CN 202339898 U CN202339898 U CN 202339898U
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Abstract
The utility model relates to the electronic technical field, and in particular relates to a CRT (Cathode Ray Tube). The three-primary mixed color laser CRT adopting a laminar-flow electron gun comprises a vacuum tube, wherein a laser panel is arranged at one end of the vacuum tube; an electron gun is arranged at the other end of the vacuum tube; the electron gun adopts a laminar-flow electron gun; a focusing deflection system is arranged in front of the laminar-flow electron gun; the laser panel is arranged in front of the focusing deflection system; the laser panel comprises at least two laser chambers; the laser generated by at least two laser chambers is one of the three primary colors; the laser panel comprises at least two rows of laser chambers; and every two adjacent laser chambers generate laser in different colors. By adopting the technical scheme, the electron gun in the utility model adopts the laminar-flow electron gun to transmit electron beams, so the current density of the laser panel is uniformly distributed, thereby averaging the power consumption of the laser panel and reducing the energy which is transformed into heat; and besides, the laser light source generated by the three-primary mixed color laser CRT disclosed by the utility model is a three-primary color light source.
Description
Technical field
The utility model relates to electronic technology field, is specifically related to a kind of CRT.
Background technology
CRT be a kind of be display with cathode ray tube, its mainly by cloche, electron gun, deflecting coil, stress panel.Stress be coated with fluoresent coating on the panel.The operation principle of CRT is: gun cathode sends electron beam, after strength control, focusing and acceleration, becomes tiny electron stream, departs to correct target through the effect of deflecting coil again, bombard be coated with fluoresent coating stress panel on.At this moment fluoresent coating is activated, and just emits beam.Traditional CRT technology is used in television set, the computer screen application, and the CRT technology also can be used in the projection mechanical-optical setup in addition, but often efficient is not high, and receives brightness limit.
CRT also can pass through the electron-beam excitation LASER Light Source, and the beam bombardment laser panel that the electron gun of CRT is produced produces LASER Light Source, has decoherence, brightness advantages of higher.But the electron-beam excitation system that general light source is equipped with adopts the intersection electron gun; This electron gun electrons emitted bundle is at electric current distribution type of the being Gaussian of image planes; There is defective from luminescence mechanism; The energy that is converted into heat is than great, and the light-emitting zone power consumption is also inhomogeneous, has reduced the average life span of chip.
The utility model content
The purpose of the utility model is, a kind of three former colour mixture laser c RT that adopt laminar flow gun are provided, and solves above technical problem.
The technical problem that the utility model solved can adopt following technical scheme to realize:
Adopt three former colour mixture laser c RT of laminar flow gun; Comprise a vacuum tube, an end of said vacuum tube is provided with a laser panel, and the other end of said vacuum tube is provided with electron gun; It is characterized in that; Said electron gun adopts a laminar flow electron gun, and the place ahead of said laminar flow gun is provided with a focus deflection system, and the place ahead of said focus deflection system is provided with said laser panel;
Said laser panel comprises at least two laser cavities, and the laser that at least two said laser cavities produce is a kind of in the three primary colors, and at least two said laser cavities are arranged along thickness direction;
Said laser panel comprises the said laser cavity of at least two rows, and the laser color that the laser cavity that a laser cavity is adjacent is sent is different.
The electron gun of the utility model can send high-velocity electron beam, and the electron beam of sufficient intensity will produce laser effect after injecting on the laser panel, and then produces laser.The utlity model has advantages such as ability eliminate laser speckle, power are big, controllability is good.In addition, the electron gun of the utility model has adopted the laminar flow gun divergent bundle, and the current density of laser panel has more uniformly and to distribute, and average laser panel power consumption has reduced the energy that being converted into heat.
When the utility model used as LASER Light Source, the LASER Light Source of generation was the three looks synthetic light that different colours mixes.When being used for the light source of optical projection system, as long as as light source, having saved, a laser c RT needs three kinds of light sources of different colors, through the labyrinth of the synthetic a branch of synthetic light of optical prism.Can save the number of laser c RT so greatly, the structure of optical projection system is simpler, cost is cheaper.
Said laser cavity comprises a gain media layer, reflector, and said reflector is separately positioned on the place ahead and the rear of said gain media layer.
Said laser cavity comprises partially reflecting layer and complete reflector, and said partially reflecting layer is arranged on the place ahead of said gain media layer, and said complete reflector is arranged on the rear of said gain media layer.So that photon repeatedly excites in laser cavity.
Said focus deflection system comprise one be arranged on said electron gun the place ahead focusing coil, be arranged on the deflecting coil in said focusing coil the place ahead, the place ahead of said deflecting coil is provided with said laser panel.In order to keep the laminarity of electron beam, the deflection angle of deflecting coil must be very little, must be in the linear deflection area of deflecting coil.
Said vacuum tube comprises a funnel shaped cloche, and the wide-angle side of said cloche is provided with said laser panel, and the other end of said cloche is provided with said laminar flow gun.The structural design of vacuum tube and laminar flow gun can change according to practical application.
Also comprise a panel cooling system; Said panel cooling system comprises manifold, heat-exchange system, cooling fluid; Said cooling fluid is arranged in the said manifold, and said heat-exchange system connects the entrance and exit of said manifold, and said manifold comprises and is arranged on said peripheral manifold that stress panel periphery.Through whole laser panel periphery, the laser panel is cooled cooling fluid through manifold flow, and coolant temperature rises.The cooling fluid that heats up is left manifold from outlet, thereby gets into heat-exchange system, cools off with cooling fluid and circulates again.
Said manifold also comprises the panel manifold that is arranged on the said laser panel, and said panel manifold is arranged between adjacent two said laser cavities;
Be provided with said panel manifold between the said laser cavity of adjacent two rows, what said panel manifold was crisscross is arranged on the said laser panel.After also being provided with manifold on the laser panel, can be better, more uniformly the laser panel is cooled off.
Said cooling fluid adopts insulation, transparent cooling fluid.So that panel cooling system isolated high voltage, the setting of having saved other electric shielding systems.Said cooling fluid can adopt the medium cooling fluid, like the Fluorinert of 3M manufactured, also can adopt perfluor liquid or other non conducting fluids.
Said manifold comprises at least two, at least two mutual UNICOMs of said manifold, and at least one at least two said manifolds connects said heat-exchange system.So that cooling laser panel more effectively and uniformly.
Beneficial effect: owing to adopt technique scheme, the utility model electron gun has adopted the laminar flow gun divergent bundle, and the current density of laser panel has more uniformly and distributes, and average laser panel power consumption has reduced the energy that being converted into heat.And the LASER Light Source that the utility model produces is the three primary colors light source.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the another kind of structural representation of the utility model;
Fig. 3 is the cross sectional representation of the utility model laser panel.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2, adopt three former colour mixture laser c RT of laminar flow gun, comprise vacuum tube, vacuum tube comprises funnel shaped cloche 11, and the wide-angle side of cloche 11 is provided with laser panel 12, and the other end of cloche 11 is provided with laminar flow gun 13.The structural design of vacuum tube and laminar flow gun 13 can change according to practical application.One end of vacuum tube is provided with a laser panel 12, and the other end of vacuum tube is provided with electron gun, and electron gun adopts laminar flow gun 13, and the place ahead of laminar flow gun 13 is provided with a focus deflection system, and the place ahead of focus deflection system is provided with laser panel 12.
With reference to Fig. 3, laser panel 12 comprises at least two laser cavities 121, and the laser that at least two laser cavities 121 produce is a kind of in the three primary colors, and at least two laser cavities 121 are arranged along thickness direction.Laser panel 12 comprises that the laser color that laser cavity 121 that at least two row's laser cavities 121, one laser cavities 121 are adjacent sends is different.Laser cavity 121 comprises a gain media layer, reflector, and the reflector is separately positioned on the place ahead and the rear of gain media layer.Laser cavity 121 comprises partially reflecting layer and complete reflector, and partially reflecting layer is arranged on the place ahead of gain media layer, and the reflector is arranged on the rear of gain media layer fully.
The focus deflection system comprise one be arranged on electron gun the place ahead focusing coil 135, be arranged on the deflecting coil 136 in focusing coil 135 the place aheads, the place ahead of deflecting coil 136 is provided with laser panel 12.In order to keep the laminarity of electron beam, the deflection angle of deflecting coil 136 must be very little, must be in the linear deflection area of deflecting coil 136.
With reference to Fig. 1, laminar flow gun 13 comprises negative electrode 131, and negative electrode 131 loads positive voltage respectively with laser panel 12.Electron gun comprises that also one is arranged on the control electrode 133 in negative electrode 131 the place aheads, and control electrode 133 connects an electron beam current control system 14.Through the control of electron beam current control system 14, control electrode 133 is used for the controlling electron beam electric current, and then changes current strength.The voltage at control electrode 133 places has determined the brightness of laser panel 12 the place ahead exterior screen.
Electron gun can also comprise a G1 electrode 132, a G3 electrode 134, and control electrode 133 is as the G2 electrode, and G1 electrode 132 is arranged between negative electrode 131 and the G2 electrode, and G1 electrode 132 is loaded with negative voltage.G3 electrode 134 is arranged between G2 electrode and the focusing coil 135.Also comprise a dual drive modulating system 3, dual drive modulating system 3 connects negative electrode and G1 electrode 132 respectively.Dual drive modulating system 3 is used for Wehnelt cathode 131 and G1 electrode 132 responsive control signals, and dual drive modulating system 3 comes Wehnelt cathode 131 through adjusting voltage from high to low, and regulates low-voltage through G1 electrode 132.Dual drive modulating system 3 can be realized high-resolution.
With reference to Fig. 2, laminar flow gun 13 comprises a negative electrode 131, and negative electrode 131 loads negative voltage power supply, and laser panel 12 loads positive voltage source, negative voltage power supply and positive voltage source series connection, and junction ground connection.Negative electrode 131 is preferred to load 0～-the high negative voltage power supply of 20kv, laser panel 12 is preferred to load 0～+ the high positive voltage power supply of 20kv.High voltage through laser c RT in the utility model can be cut apart, and makes negative potential be applicable to negative electrode 131, and positive potential is applicable to anode, so the combined potential on laser panel 12 is near the electrical potential difference of positive potential and negative potential.
Also comprise an electron beam current control system 14, electron beam current control system 14 connects negative electrode 131.Electron gun can also comprise a G1 electrode 132, a G2 electrode 133, a G3 electrode 134, and G1 electrode 132, G2 electrode 133, G3 electrode 134 are successively set between negative electrode 131 and the focus deflection system.G1 electrode 132, G2 electrode 133, G3 electrode 134 connect electron beam current control system 14 respectively, and electron beam current control system 14 each electrode of control are controlled the output intensity of laser.
With reference to Fig. 1; Also comprise a panel cooling system, the panel cooling system comprises manifold, heat-exchange system 22, cooling fluid, and cooling fluid is arranged in the manifold; Heat-exchange system 22 connects the entrance and exit of manifolds, manifold comprise be arranged on stress panel periphery peripheral manifold 21.Through whole laser panel 12 peripheries, laser panel 12 is cooled cooling fluid through manifold flow, and coolant temperature rises.The cooling fluid that heats up is left manifold from outlet, thereby gets into heat-exchange system 22, cools off with cooling fluid and circulates again.
With reference to Fig. 3; Manifold also comprises the panel manifold 23 that is arranged on the laser panel 12; Panel manifold 23 is arranged between adjacent two laser cavities 121, is provided with panel manifold 23,23 crisscross being arranged on the laser panel 12 of panel manifold between adjacent two row's laser cavities 121.After also being provided with manifold on the laser panel 12, can be better, more uniformly laser panel 12 is cooled off.Manifold comprises at least two, at least two mutual UNICOMs of manifold, and at least one at least two manifolds connects said heat-exchange system 22.。Cooling fluid adopts insulation, transparent cooling fluid.So that panel cooling system isolated high voltage, the setting of having saved other electric shielding systems.Cooling fluid can adopt the medium cooling fluid, like the Fluorinert of 3M manufactured, also can adopt perfluor liquid or other non conducting fluids.
Execution mode one: with reference to Fig. 3, laser panel 12 is provided with two row's laser cavities, 121, the first row's laser cavities 121 and adopts red laser chamber 121 and green laser chamber 121 in the three primary colors, is labeled as R and G respectively; Second row's laser cavity adopts green laser chamber 121 and blue laser chamber 121 in the three primary colors, is labeled as G and B respectively.Be provided with panel manifold 23 between adjacent two laser cavities 121, around laser panel 12, be provided with peripheral manifold 21, peripheral manifold 21 and panel manifold 23 mutual UNICOMs, and be connected with heat-exchange system 22.Laser c RT after the above-mentioned design can send the synthetic light of three mixture of colours.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (9)
1. adopt three former colour mixture laser c RT of laminar flow gun; Comprise a vacuum tube, an end of said vacuum tube is provided with a laser panel, and the other end of said vacuum tube is provided with electron gun; It is characterized in that; Said electron gun adopts a laminar flow electron gun, and the place ahead of said laminar flow gun is provided with a focus deflection system, and the place ahead of said focus deflection system is provided with said laser panel;
Said laser panel comprises at least two laser cavities, and the laser that at least two said laser cavities produce is a kind of in the three primary colors, and at least two said laser cavities are arranged along thickness direction;
Said laser panel comprises the said laser cavity of at least two rows, and the laser color that the laser cavity that a laser cavity is adjacent is sent is different.
2. three former colour mixture laser c RT of employing laminar flow gun according to claim 1 is characterized in that said laser cavity comprises a gain media layer, reflector, and said reflector is separately positioned on the place ahead and the rear of said gain media layer.
3. three former colour mixture laser c RT of employing laminar flow gun according to claim 2; It is characterized in that; Said laser cavity comprises partially reflecting layer and complete reflector; Said partially reflecting layer is arranged on the place ahead of said gain media layer, and said complete reflector is arranged on the rear of said gain media layer.
4. three former colour mixture laser c RT of employing laminar flow gun according to claim 1; It is characterized in that; Said focus deflection system comprise one be arranged on said electron gun the place ahead focusing coil, be arranged on the deflecting coil in said focusing coil the place ahead, the place ahead of said deflecting coil is provided with said laser panel.
5. three former colour mixture laser c RT of employing laminar flow gun according to claim 1; It is characterized in that; Said vacuum tube comprises a funnel shaped cloche, and the wide-angle side of said cloche is provided with said laser panel, and the other end of said cloche is provided with said laminar flow gun.
6. three former colour mixture laser c RT of employing laminar flow gun according to claim 1; It is characterized in that; Also comprise a panel cooling system; Said panel cooling system comprises manifold, heat-exchange system, cooling fluid, and said cooling fluid is arranged in the said manifold, and said heat-exchange system connects the entrance and exit of said manifold; Said manifold comprises the peripheral manifold that is arranged on said laser panel periphery.
7. three former colour mixture laser c RT of employing laminar flow gun according to claim 6; It is characterized in that; Said manifold also comprises the panel manifold that is arranged on the said laser panel; Said panel manifold is arranged between adjacent two said laser cavities, is provided with said panel manifold between the said laser cavity of adjacent two rows, and what said panel manifold was crisscross is arranged on the said laser panel.
8. according to three former colour mixture laser c RT of claim 6 or 7 described employing laminar flow guns, it is characterized in that said cooling fluid adopts insulation, transparent cooling fluid.
9. according to three former colour mixture laser c RT of claim 6 or 7 described employing laminar flow guns; It is characterized in that; Said manifold comprises at least two, at least two mutual UNICOMs of said manifold, and at least one at least two said manifolds connects said heat-exchange system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204250968U CN202339898U (en) | 2011-10-31 | 2011-10-31 | Three-primary mixed color laser CRT (Cathode Ray Tube) adopting laminar-flow electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204250968U CN202339898U (en) | 2011-10-31 | 2011-10-31 | Three-primary mixed color laser CRT (Cathode Ray Tube) adopting laminar-flow electron gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339898U true CN202339898U (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204250968U Expired - Fee Related CN202339898U (en) | 2011-10-31 | 2011-10-31 | Three-primary mixed color laser CRT (Cathode Ray Tube) adopting laminar-flow electron gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339898U (en) |
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2011
- 2011-10-31 CN CN2011204250968U patent/CN202339898U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |