CN101893454A - Oblique code light modulation reticle - Google Patents
Oblique code light modulation reticle Download PDFInfo
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- CN101893454A CN101893454A CN 201010225952 CN201010225952A CN101893454A CN 101893454 A CN101893454 A CN 101893454A CN 201010225952 CN201010225952 CN 201010225952 CN 201010225952 A CN201010225952 A CN 201010225952A CN 101893454 A CN101893454 A CN 101893454A
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Abstract
The invention relates to an oblique code light modulation reticle, in particular to a dimming device, and belongs to the technical field of photoelectric guidance. The technical problem to be solved is to provide the oblique code light modulation reticle, which adopts the technical scheme that: the oblique code light modulation reticle comprises a substrate, a circular optical grating, an internal code channel and an external code channel, wherein the circular optical grating is positioned on the innermost cycle of the light modulation reticle, and scribed lines of the circumference are 200 pairs; the coding range of the internal code channel is 180 degrees, codes are black-and-white and mutually parallel, and the length direction of the coding forms an crossing angle of 45 degrees with the diameter of the modulation reticle; the coding range of the external code channel is also 180 degrees, codes are black-and-white and mutually parallel, and the length direction of the coding forms an crossing angle of 45 degrees with the diameter of the modulation reticle; the difference between a starting point of the internal code channel and a starting point of the external code channel is 90 degrees; and the two code channels adopt two rows of codes, and the number of the codes can be determined according to using requirements. When the modulation reticle makes clockwise rotation, the black-and-white codes do not overlap, the width is not changed, a receiver does not drop out the codes, and the guidance precision is high.
Description
Technical field
The invention belongs to a kind of oblique sign indicating number light modulating device that relates in the photoelectric guidance technical field.
Background technology
So-called optical chopper is that the light beam in the light path is carried out coded modulation, produces a kind of light modulated device of continuous modulated light signal, is used for the optical guidance technical field more, is used widely.
The prior art the most approaching with the present invention is the encoded light chopper wheel that Muscovite " Karst victory " antitank gun adopts with the laser-beam riding guidance of launching a guided missile, as shown in Figure 1.Comprise substrate 1, inner ring code channel 2, outer ring code channel 3.
Chromium plating in substrate 1 adopts lithography corrosion technology to form inner ring code channel 2 and outer ring code channel 3.Inner ring code channel 2 and coding on the outer ring code channel 3 all be chequered with black and white, width is identical, the length direction of black and white sign indicating number points to the center of circle of chopper wheel.The coding range of inner ring code channel 2 is 180 °, and the coding range of outer ring code channel 3 also is 180 °, and the starting point of the starting point of inner ring code channel and outer ring code channel differs 90 °.Coding on two code channels all adopts two scheduling sign indicating numbers, and two kinds of codings of inner ring code channel 2 are respectively 45 pairs and 55 pairs, and two kinds of codings of outer ring code channel 3 are respectively 75 pairs and 90 pairs.
This coded modulation dish is walked around speed when turning clockwise with per second 100, external laser beam is from the starting point incident of inner ring code channel 2 with from the terminal point outgoing of outer ring code channel 3, laser beam is modulated into modulated light signal, in the spatial information field, received by receiver on the bullet, the control guided missile is by predetermined heading flight.
The subject matter that this chopper wheel exists is: the light modulated that interior code channel 2 produces is to sweep up and down, the light modulated that outer code channel 3 produces is swept about being, because the black and white sign indicating number is to scribe by the diametric(al) of chopper wheel, chequered with black and white sign indicating number is vertical with the direction of scanning, perpendicular up and down sweep with about sweep away when joining, the code weight that not only produces two code channels is folded, also can produce the wide variety of black and white sign indicating number, receiver can not be discerned and lose sign indicating number, finally influence guidance precision.
Summary of the invention
In order to overcome the defective that prior art exists, the objective of the invention is to overcome when the inside and outside code channel of chopper wheel rotation joins, the width not overlapping and sign indicating number of chequered with black and white sign indicating number does not change, and makes receiver not lose sign indicating number, and then improves guidance precision.
The technical problem to be solved in the present invention is: a kind of oblique code light modulation reticle is provided.The technical scheme of technical solution problem as shown in Figure 2.Comprise substrate 4, circle grating 5, interior code channel 6, outer code channel 7.Circle grating 5 is positioned at the inner ring of optical chopper, and the groove of circumference is 200 pairs; The coding range of interior code channel 6 is 180 °, is encoded to chequered with black and white and parallel each other sign indicating number, the length direction of coding and the diameter of the chopper wheel angle of cut at 45; The coding range of outer code channel 7 is 180 ° also, is encoded to chequered with black and white and parallel each other sign indicating number, the length direction of coding and the diameter of the chopper wheel angle of cut at 45, and the starting point of the starting point of inner ring code channel and outer ring code channel differs 90 °.Coding on two code channels all adopts two scheduling sign indicating numbers, and the quantity of sign indicating number can be according to using needs to determine voluntarily.Two scheduling sign indicating numbers such as the inner ring code channel can be chosen to be 55 pairs and 75 pairs, and two scheduling sign indicating numbers of outer ring code channel are chosen as 90 pairs and 110 pairs.Select a principle of group/cording quantity to be, the difference in the cycle of adjacent two kinds of modulation signals suitably increased, make signal skew with convenient atmospheric agitation after, it is the sign indicating number of which kind of frequency that receiver still can be discerned, and guarantees guidance precision.But can not increase too much, avoid frequency range wide.
Principle of work explanation: during optical chopper work, turn clockwise with very high speed, the starting point of interior code channel 6 is external laser beam incident mouths, the light modulated that produces is to sweep up and down, the terminal point of outer code channel 7 is exit portals of external laser beam, and the light modulated of generation is swept about being, the chequered with black and white sign indicating number on two code channels is at 45 with the direction of scanning, two code channel joints, do not produce the variation and the overlapping sign indicating number of sign indicating number width during scanning.Thereby the receiver on the bullet is not lost sign indicating number, and then has improved guidance precision.
Good effect of the present invention: when chopper wheel turned clockwise, chequered with black and white sign indicating number did not occur overlapping, and the width of sign indicating number does not change, and receiver is not lost sign indicating number, the guidance precision height.
Description of drawings
Fig. 1 is the structural representation of prior art;
Fig. 2 is a structural representation of the present invention.
Embodiment
The present invention implements by structure shown in Figure 2, and wherein, the material of substrate 4 adopts K9 optical glass through optics cold working, chrome-faced, scribe into oblique yard pattern through corrosion on interior code channel 6 and outer code channel 7.The length direction of sign indicating number and the diameter angle of cut at 45 of chopper wheel.Two row's sign indicating numbers of inner ring code channel are selected 55 pairs and 75 pairs, and two row's sign indicating numbers of outer ring code channel are selected 90 pairs and 110 pairs.
Claims (1)
1. an oblique code light modulation reticle comprises substrate (4), interior code channel (6), outer code channel (7), it is characterized in that also comprising round grating (5); Circle grating (5) is positioned at the inner ring of optical chopper, and the groove of circumference is 200 pairs; The coding range of interior code channel (6) is 180 °, is encoded to chequered with black and white and parallel each other sign indicating number, the length direction of coding and the diameter of the chopper wheel angle of cut at 45; The coding range of outer code channel (7) is 180 ° also, is encoded to chequered with black and white and parallel each other sign indicating number, the length direction of coding and the diameter of the chopper wheel angle of cut at 45, and the starting point of the starting point of inner ring code channel and outer ring code channel differs 90 °; Coding on two code channels all adopts two scheduling sign indicating numbers, and the quantity of sign indicating number can be according to using needs to determine voluntarily; Two scheduling sign indicating numbers such as the inner ring code channel are chosen to be 55 pairs and 75 pairs, and two scheduling sign indicating numbers of outer ring code channel are elected 90 pairs and 110 pairs as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102259525A CN101893454B (en) | 2010-07-14 | 2010-07-14 | Oblique code light modulation reticle |
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| CN2010102259525A CN101893454B (en) | 2010-07-14 | 2010-07-14 | Oblique code light modulation reticle |
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| CN101893454A true CN101893454A (en) | 2010-11-24 |
| CN101893454B CN101893454B (en) | 2011-11-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430647A (en) * | 2011-10-17 | 2012-05-02 | 青岛德力源五金制品有限公司 | Continuous die for producing connecting pieces of air conditioner and method for continuously producing connecting pieces of air conditioner |
| CN103606375A (en) * | 2013-11-06 | 2014-02-26 | 长春师凯科技产业有限责任公司 | Coding light modulation disk for improving resolution |
| CN104535983A (en) * | 2014-12-24 | 2015-04-22 | 电子科技大学 | Three-dimensional imaging optical radar system based on LED light source |
| CN113607197A (en) * | 2021-07-19 | 2021-11-05 | 西安微普光电技术有限公司 | Laser frame beam guidance coding disc and encoder |
| CN114983230A (en) * | 2016-02-23 | 2022-09-02 | 雀巢产品有限公司 | Recipe code and container for a system for preparing beverages or food products |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014482A (en) * | 1975-04-18 | 1977-03-29 | Mcdonnell Douglas Corporation | Missile director |
| JPS59180426A (en) * | 1983-03-31 | 1984-10-13 | Agency Of Ind Science & Technol | Modulating light type rotary encoder |
| FR2727592A1 (en) * | 1981-10-28 | 1996-05-31 | Martin Marietta Corp | Encoding mask for electromagnetic beam producer in missile guidance system |
| US5848763A (en) * | 1997-09-03 | 1998-12-15 | The United States Of America As Represented By The Secretary Of The Army | Retro-encoded missile guidance system |
| CN2478087Y (en) * | 2001-04-16 | 2002-02-20 | 袁杰 | Modulation disk |
| CN2586987Y (en) * | 2002-11-27 | 2003-11-19 | 长春第一光学有限公司 | Diagonal bar metal grating disc |
| CN101183015A (en) * | 2007-12-11 | 2008-05-21 | 重庆工学院 | Laser grid angular displacement sensor based on CD-disc data system |
| CN201352124Y (en) * | 2009-02-12 | 2009-11-25 | 任忠平 | Raster encoder code wheel |
-
2010
- 2010-07-14 CN CN2010102259525A patent/CN101893454B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014482A (en) * | 1975-04-18 | 1977-03-29 | Mcdonnell Douglas Corporation | Missile director |
| FR2727592A1 (en) * | 1981-10-28 | 1996-05-31 | Martin Marietta Corp | Encoding mask for electromagnetic beam producer in missile guidance system |
| JPS59180426A (en) * | 1983-03-31 | 1984-10-13 | Agency Of Ind Science & Technol | Modulating light type rotary encoder |
| US5848763A (en) * | 1997-09-03 | 1998-12-15 | The United States Of America As Represented By The Secretary Of The Army | Retro-encoded missile guidance system |
| CN2478087Y (en) * | 2001-04-16 | 2002-02-20 | 袁杰 | Modulation disk |
| CN2586987Y (en) * | 2002-11-27 | 2003-11-19 | 长春第一光学有限公司 | Diagonal bar metal grating disc |
| CN101183015A (en) * | 2007-12-11 | 2008-05-21 | 重庆工学院 | Laser grid angular displacement sensor based on CD-disc data system |
| CN201352124Y (en) * | 2009-02-12 | 2009-11-25 | 任忠平 | Raster encoder code wheel |
Non-Patent Citations (2)
| Title |
|---|
| 《光学技术》 20050131 江月松，等 某型号瞄准制导仪中调制盘图案的设计 第31卷, 第1期 2 * |
| 《长春理工大学学报》 20060930 钱义先，等 激光驾束制导系统编码调制技术的研究 第29卷, 第3期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430647A (en) * | 2011-10-17 | 2012-05-02 | 青岛德力源五金制品有限公司 | Continuous die for producing connecting pieces of air conditioner and method for continuously producing connecting pieces of air conditioner |
| CN103606375A (en) * | 2013-11-06 | 2014-02-26 | 长春师凯科技产业有限责任公司 | Coding light modulation disk for improving resolution |
| CN103606375B (en) * | 2013-11-06 | 2016-06-22 | 长春师凯科技产业有限责任公司 | One carries high-resolution encoded light chopper wheel |
| CN104535983A (en) * | 2014-12-24 | 2015-04-22 | 电子科技大学 | Three-dimensional imaging optical radar system based on LED light source |
| CN114983230A (en) * | 2016-02-23 | 2022-09-02 | 雀巢产品有限公司 | Recipe code and container for a system for preparing beverages or food products |
| CN113607197A (en) * | 2021-07-19 | 2021-11-05 | 西安微普光电技术有限公司 | Laser frame beam guidance coding disc and encoder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101893454B (en) | 2011-11-09 |
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