• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. DEVICE FOR VISUAL INDICATION OF THE POSITION OF THE OBJECT, containing two screens arranged one after the other, at least one of which is bent at an obtuse angle, each of which is coated with opaque strokes separated by transparent gaps, while the opaque strokes of both screens are made the same width for each screen and different widths on the first and second screens, characterized in that, in order to increase the accuracy of the indication by observing one moire interference stripe, the number of opaque strokes One screen is smaller than the number of strokes of another screen, the central opaque stroke of one screen is symmetrically overlapped by the central transparent gap of another screen, and the distance between the opaque strokes of the first screen is determined by the ratio SP I, 5 b + dil, 9 b, where b - the width of the opaque stroke of the first screen; d - the width of the transparent gap of the first screen. 2. A device according to claim 1, characterized in that the second screen is curved.
    公开号:SU1200859A3
    申请号:SU833598340
    申请日:1983-05-13
    公开日:1985-12-23
    发明作者:Андерс Бергквист Ларс；Форсен Иван
    申请人:Иногон Лисенс Аб (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to devices for determining the direction, and it is applied to devices for indicating the field of an object. The aim of the invention is to improve the accuracy of the display by observing one moire interference fringe. Figures 1-3 show screen layouts with opaque strokes and transparent gaps; Fig. 4 shows the mutual arrangement of opaque strokes and transparent spaces of the first and second screens relative to each other; Fig. 5 is a view of the interference moire band at the position of the object in front of the display device; in fig. 6 and .7 is a view of the interference moire strip when the object is positioned to the right and left of the display device, respectively. The device for visual indication consists of screens 1 and 2, each of which has opaque, dark strokes 3, separated by transparent gaps 4. Screens 1 and 2 have different divisions, i.e. different numbers of dark lines per unit of length perpendicular to dark lines. The width of the opaque dark bars of one screen is denoted by b |, this screen has transparent inter spaces of width d, the width of the opaque strokes of another screen is also b, and the transparent gaps of this screen have a width of dg, and d. D,. In addition, at least one of the screens 1 and 2 is bent in the center, forming an obtuse angle, which may be 120-170, 592 The device operates in the following 1st way. When overlaying the strokes of 3 screens 1 and 2 one on another, only one interference band arises, since one of the screens has only one dark bar larger than the other screen. To obtain an interference band symmetrically located across the entire surface of the screen, the dark strokes of the screen 1 are mixed at the outer edges of the screen 1 relative to the dark strokes of the screen 2 located behind. To ensure symmetry of the interference band and to observe one interference band, screens 1 and 2 should be positioned relative to each other so that the central opaque stroke of one screen is covered by the central transparent gap of the other screen, and the distance between the opaque strokes of the first screen is determined by 1.5 b, In this case, when the device is observed in the direction to the right of the guide sign, an interference pattern is obtained in the form of a broken line, when the device is observed in board on the left, the interference pattern is formed in a zigzag pattern, but the break angle is directed in the opposite direction. The swept shape of the interference patterns indicates the direction of the correction leading to the direction sign.
    Fie.2
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    NI oo / vvfNj yK / -J, U, / GchH HCHM. H. -HHCHHH / y. STCHHH L L, UGHHCH X
    FIG. five
    9g.1
    ig.b
    权利要求:
    Claims (2)
    [1]
    1. DEVICE FOR VISUAL INDICATION OF THE OBJECT POSITION, containing two screens located one after another, at least one of which is bent at an obtuse angle, each of which has opaque strokes separated by transparent gaps, while the opaque strokes of both screens are made of the same width for each screen and different widths on the first and second screen, characterized in that, in order to increase the accuracy of the display by observing one moire interference band, the number of opaque strokes is one of the screen. One less than the number of strokes of another screen, the central opaque stroke of one screen is symmetrically overlapped by the central transparent gap of the other screen, and the distance between the opaque strokes of the first screen is determined by the ratio
    1.5 bib + d <l, 9 b, where b is the width of the opaque stroke of the first screen;
    d. - width of the transparent gap of the first screen.
    [2]
    2. The device according to claim 1, characterized in that the second screen is made curved.
    figure 1
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    同族专利:
    公开号 | 公开日
    GB2118717B|1985-05-01|
    NL191585C|1995-10-03|
    BR8207866A|1983-08-30|
    WO1983001106A1|1983-03-31|
    NL8220301A|1983-08-01|
    AU553172B2|1986-07-03|
    FR2513414B1|1986-08-22|
    SG27388G|1988-09-30|
    CH662176A5|1987-09-15|
    GB2118717A|1983-11-02|
    JPS58501479A|1983-09-01|
    US4629325A|1986-12-16|
    NL191585B|1995-06-01|
    HK42790A|1990-06-08|
    JPH041911B2|1992-01-14|
    GB8312022D0|1983-06-08|
    DE3249026T1|1983-08-25|
    SE426987B|1983-02-21|
    AU8826382A|1983-04-08|
    DE3249026C2|1990-08-23|
    ZA826571B|1983-07-27|
    FR2513414A1|1983-03-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL6711045A|1967-08-10|1969-02-12|
    NL6817007A|1968-11-28|1970-06-01|
    FR2236164B1|1973-07-04|1976-04-30|Pierrat Jean Joseph|
    SE400644B|1976-10-15|1978-04-03|Bergkvist Lars A|DEVICE FOR OPTICAL, PREFERRED VISUAL DETERMINATION OF A CERTAIN PLAN|
    SE408480B|1977-10-12|1979-06-11|Bergkvist Lars A|DEVICE FOR AN INSTRUMENT FOR OPTICAL PREFERREDLY VISUAL DETERMINATION OF A CERTAIN PLAN|
    SE422117B|1980-09-22|1982-02-15|Bergkvist Lars A|DEFINITION OF THE SINGLE LINES|SE462877B|1988-12-19|1990-09-10|Moagon Ag|DEVICE FOR COLLECTION AND EMISSION OF LIGHT THROUGH DETERMINED SURFACE TO CREATE A LIGHT IMAGE|
    SE8904091L|1989-12-04|1991-06-05|Inogon Licens Ab|POINT INDICATOR|
    US5022739A|1990-06-13|1991-06-11|Bennett Reginald B|Direction indicating reflector with planar reflector panels including cube corners|
    US6535280B1|2001-08-31|2003-03-18|Advanced Micro Devices, Inc.|Phase-shift-moiré focus monitor|
    SE536546C2|2012-04-30|2014-02-11|Fmt Int Trade Ab|Procedure and device for identifying an aircraft in connection with parking of the aircraft at a stand|
    SE536533C2|2012-04-30|2014-02-04|Fmt Int Trade Ab|Procedure for identifying an aircraft in connection with parking of the aircraft at a stand|
    CN107797171B|2017-12-13|2020-03-10|常熟市电子仪器厂|Method for designing grating for optical guiding device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8105509A|SE426987B|1981-09-16|1981-09-16|ENSLINJEINDIKATOR|
    PCT/SE1982/000270|WO1983001106A1|1981-09-16|1982-08-25|Leading mark indicator|
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