CN103645559B - A kind of mechanical type field scan display - Google Patents
A kind of mechanical type field scan display Download PDFInfo
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- CN103645559B CN103645559B CN201310582994.8A CN201310582994A CN103645559B CN 103645559 B CN103645559 B CN 103645559B CN 201310582994 A CN201310582994 A CN 201310582994A CN 103645559 B CN103645559 B CN 103645559B
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- light source
- field scan
- motor
- reflecting surface
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Abstract
A kind of mechanical type field scan display, comprise display and light source, it also comprises motor and driven pulley, is connected between motor with driven pulley by belt-driven; The beam emissions direction of light source is provided with speculum, conveyer belt is provided with the reflecting surface assembly of band field scan; The Line beam that condensation light source sends through speculum, band field scan reflecting surface assembly on display.The present invention is by the improvement of said structure, the line scanning of display is completed by the high-brightness LED line beam light source of strip, its field scan by motor driven and fixing two sub-reflectings surface on a moving belt complete, compared with prior art, mechanical type type of drive is adopted to complete while field scan greatly simplify display device structure, adopt high-brightness LED as light source, display picture and text on display focus on, brightness is high, significantly reduce the power of complete machine, improve useful life, and applied widely, practicality is high.
Description
Technical field
The present invention relates to a kind of display, specifically a kind of mechanical type field scan display.
Background technology
Come out soon in laser technology, just someone proposes the rotary reflective polygon prism reflection making laser beam be in succession called " multiaspect mirror drum " by two, realize large screen projection displaying scheme, the multiaspect mirror drum that the program has one to complete field scan and one complete the multiaspect mirror drum of line scanning, row mirror drum often turns over a minute surface and is equivalent to scan a line, field lens drum often turns over a minute surface and is equivalent to scanning one, and these two mirror drums coordinate rotates continuously and can form raster.When the multiaspect mirror drum of line scanning is 16, reach the image effect of common TV, its rotating speed needs are per minute reaches 60,000 turns, and require that there is very high stability, field lens drum also will keep very strict synchronous matching therebetween with row mirror drum simultaneously, otherwise image fault will be made even cannot to show image.Just quite high to the requirement of motor like this, need, to the complicated servo circuit of its configuration, to make manufacturing cost very high.Therefore, further improvement is necessary.
Summary of the invention
Object of the present invention aims to provide a kind of simple and reasonable, and dependable performance, display effect is good, low in energy consumption, long service life, the mechanical type field scan display that applied widely and practicality is high, to overcome weak point of the prior art.
By a kind of mechanical type field scan display that this object designs, comprise display and light source, characterized by further comprising motor and driven pulley, be connected by belt-driven between motor with driven pulley; The beam emissions direction of light source is provided with speculum, conveyer belt is provided with the reflecting surface assembly of band field scan; The Line beam that condensation light source sends through speculum, band field scan reflecting surface assembly on display.
Described light source is arranged at the side of conveyer belt and forms for the high-brightness LED pipe of strip.
Described speculum is strip and the light beam that corresponding light source sends is provided with reflecting surface in 45 degree.
Reflecting surface assembly comprises the first sub-reflecting surface and the second sub-reflecting surface and is fixedly installed on a moving belt respectively; Distance of shaft centers between the moving runner of motor and driven pulley is from forming field width A.
The screen size of described display and thickness, determined by the linear velocity of the moving runner of motor; When field frequency F and field width A determines, the thickness of screen is determined by the radius R of moving runner.
The mathematical relationship of described field width A, motor speed N, moving runner radius R and field frequency F is: the linear velocity of A*F=2 π R*N=drive.
The present invention is by the improvement of said structure, the line scanning of display is completed by the high-brightness LED line beam light source of strip, its field scan is by motor driven, and fixing two sub-reflectings surface on a moving belt complete, compared with prior art, mechanical type type of drive is adopted to complete while field scan greatly simplify display device structure, adopt high-brightness LED as light source, display picture and text on display focus on, brightness is high, significantly reduce the power of complete machine, improve useful life, and can projector be widely used in, on the displays such as television set, outdoor advertising equitemperature can also be applied to, light environment changes place greatly.The features such as it has simple and reasonable, dependable performance, and display effect is good, low in energy consumption, long service life, applied widely, practicality is high.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is one embodiment of the invention fundamental diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1, Fig. 2, this mechanical type field scan display, comprises display and light source 1, and it also comprises motor 2 and driven pulley 3, is driven be connected between motor 2 with driven pulley 3 by conveyer belt 4; The beam emissions direction of light source 1 is provided with speculum 5, conveyer belt 4 is provided with the reflecting surface assembly of band field scan; The light beam that condensation light source 1 sends through speculum 5, band field scan reflecting surface assembly on display.
Specifically, light source 1 is arranged at the side of conveyer belt 4 and forms for the high-brightness LED pipe of strip; Speculum 5 is strip and the light beam that corresponding light source 1 sends is provided with reflecting surface in 45 degree; Reflecting surface assembly comprises the first sub-reflecting surface 6 and the second sub-reflecting surface 7 and is fixedly installed on the transport belt 4 respectively; Distance of shaft centers between the moving runner of motor 2 and driven pulley 3 is from forming field width A.
In said structure, the screen size of display and thickness, determined by the linear velocity of the moving runner of motor 2; When field frequency F and field width A determines, the thickness of screen is determined by the radius R of moving runner; Wherein, the mathematical relationship of field width A, motor 2 rotating speed N, moving runner radius R and field frequency F is: the linear velocity of A*F=2 π R*N=drive.
Such as: the screen of 50 inches, long=1106.9 millimeters, high=622.63 millimeters (on the spot width A); If worked with the 50HZ field frequency of Phase Alternation Line system, use above-mentioned mathematical expression A*F=2 π R*N can calculate its motor 2 rotating speed N and the relation of radius R:
R*N=A*F/2π=622.63*50/2*3.14=4957.245。
As N=2.4 ten thousand revs/min=400 revolutions per seconds, then R=4957.245/400, R=12.39 millimeter, the thickness of display is 2R, is about 24.8 millimeters; That is the display of a 50 inches, thickness can at 24.8 millimeters, but its motor speed is just at common 20,000 4 thousand rpms, is easy to accomplish; If think the speed reducing motor 2 again, can corresponding increase display thickness; If when paying no attention to display thickness, thickness can be accomplished the same with field width A, so the speed of motor 2 only needs 3000 turns of per minutes just passable, and such a display is applicable to doing outdoor advertisement screen very much.
Its operation principle: the line scanning of display is completed by the high-brightness LED line beam light source 1 of strip, its field scan by motor 2 drive and fixing two sub-reflectings surface on the transport belt 4 complete; The Line beam that condensation light source 1 sends, on the first sub-reflecting surface 6 and the second sub-reflecting surface 7 to display of speculum 5, band field scan, completes.
Above-mentioned is preferred version of the present invention, those of ordinary skill in the art to its simple modification or transformation, within the protection range all dropping on invention.
Claims (4)
1. a mechanical type field scan display, comprise display and condensation light source (1), characterized by further comprising motor (2) and driven pulley (3), driven by conveyer belt (4) between motor (2) with driven pulley (3) and be connected; The beam emissions direction of condensation light source (1) is provided with speculum (5), conveyer belt (4) is provided with the reflecting surface assembly of band field scan; The Line beam that condensation light source (1) sends through speculum (5), band field scan reflecting surface assembly on display;
It is characterized in that: described reflecting surface assembly comprises the first sub-reflecting surface (6) and the second sub-reflecting surface (7) and is fixedly installed on conveyer belt (4) respectively; Distance of shaft centers between the moving runner of motor (2) and driven pulley (3) is from forming field width A;
The screen size of described display and thickness, determined by the linear velocity of the moving runner of motor (2).
2. mechanical type field scan display according to claim 1, is characterized in that described condensation light source (1) is arranged at the side of conveyer belt (4) and forms for the high-brightness LED pipe of strip.
3. mechanical type field scan display according to claim 2, is characterized in that described speculum (5) is for strip and the light beam that corresponding condensation light source (1) sends is provided with reflecting surface in 45 degree.
4. the mechanical type field scan display according to any one of claim 1-3, is characterized in that the mathematical relationship of described field width A, motor (2) rotating speed N, moving runner radius R and field frequency F is: the linear velocity of A*F=2 π R*N=moving runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582994.8A CN103645559B (en) | 2013-11-19 | 2013-11-19 | A kind of mechanical type field scan display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582994.8A CN103645559B (en) | 2013-11-19 | 2013-11-19 | A kind of mechanical type field scan display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103645559A CN103645559A (en) | 2014-03-19 |
| CN103645559B true CN103645559B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310582994.8A Expired - Fee Related CN103645559B (en) | 2013-11-19 | 2013-11-19 | A kind of mechanical type field scan display |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717503A (en) * | 1996-03-26 | 1998-02-10 | First International Computers, Inc. | Actuating mechanism for optical scanner |
| CN2316674Y (en) * | 1997-07-04 | 1999-04-28 | 鸿友科技股份有限公司 | Ring driver for optical scanner |
| CN1963590A (en) * | 2005-11-07 | 2007-05-16 | 夏普株式会社 | Light scanning device and image forming apparatus using the same |
| CN203561794U (en) * | 2013-11-19 | 2014-04-23 | 周裕佳 | Mechanical type field scanning display |
-
2013
- 2013-11-19 CN CN201310582994.8A patent/CN103645559B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5717503A (en) * | 1996-03-26 | 1998-02-10 | First International Computers, Inc. | Actuating mechanism for optical scanner |
| CN2316674Y (en) * | 1997-07-04 | 1999-04-28 | 鸿友科技股份有限公司 | Ring driver for optical scanner |
| CN1963590A (en) * | 2005-11-07 | 2007-05-16 | 夏普株式会社 | Light scanning device and image forming apparatus using the same |
| CN203561794U (en) * | 2013-11-19 | 2014-04-23 | 周裕佳 | Mechanical type field scanning display |
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| Publication number | Publication date |
|---|---|
| CN103645559A (en) | 2014-03-19 |
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Granted publication date: 20160224 Termination date: 20191119 |