FI67630C - Anordning vid raster avsedda att ge upphov till ett moiremoenster - Google Patents

Anordning vid raster avsedda att ge upphov till ett moiremoenster Download PDF

Info

Publication number
FI67630C
FI67630C FI782749A FI782749A FI67630C FI 67630 C FI67630 C FI 67630C FI 782749 A FI782749 A FI 782749A FI 782749 A FI782749 A FI 782749A FI 67630 C FI67630 C FI 67630C
Authority
FI
Finland
Prior art keywords
lines
raster
diameter
line
viewer
Prior art date
Application number
FI782749A
Other languages
English (en)
Finnish (fi)
Other versions
FI782749A (fi
FI67630B (fi
Inventor
Lars A Bergkvist
Original Assignee
Lars A Bergkvist
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lars A Bergkvist filed Critical Lars A Bergkvist
Publication of FI782749A publication Critical patent/FI782749A/fi
Application granted granted Critical
Publication of FI67630B publication Critical patent/FI67630B/fi
Publication of FI67630C publication Critical patent/FI67630C/fi

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/60—Systems using moiré fringes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Image Generation (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Toys (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Viewfinders (AREA)
  • Optical Elements Other Than Lenses (AREA)
FI782749A 1977-09-09 1978-09-07 Anordning vid raster avsedda att ge upphov till ett moiremoenster FI67630C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7710139A SE408734B (sv) 1977-09-09 1977-09-09 Anordning vid raster avsedda att ge upphov till ett moiremonster
SE7710139 1977-09-09

Publications (3)

Publication Number Publication Date
FI782749A FI782749A (fi) 1979-03-10
FI67630B FI67630B (fi) 1984-12-31
FI67630C true FI67630C (fi) 1985-04-10

Family

ID=20332224

Family Applications (1)

Application Number Title Priority Date Filing Date
FI782749A FI67630C (fi) 1977-09-09 1978-09-07 Anordning vid raster avsedda att ge upphov till ett moiremoenster

Country Status (15)

Country Link
US (1) US4242000A (da)
JP (1) JPS5493400A (da)
AR (1) AR218683A1 (da)
AU (1) AU522933B2 (da)
BR (1) BR7805904A (da)
CA (1) CA1109304A (da)
DE (1) DE2838509A1 (da)
DK (1) DK147953C (da)
ES (1) ES473587A1 (da)
FI (1) FI67630C (da)
FR (1) FR2402886A1 (da)
GB (1) GB2004085B (da)
NO (1) NO148973C (da)
SE (1) SE408734B (da)
SU (1) SU1376951A3 (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422117B (sv) * 1980-09-22 1982-02-15 Bergkvist Lars A Anordning for utmerkande av enslinjer
GB2253902B (en) * 1984-02-18 1993-03-24 Ferranti Plc Detector apparatus for detecting coherent monochromatic point-source radiation
DE3527996C2 (de) * 1985-08-03 1994-06-23 Mankau Dieter Ski mit Ausgleichselementen
JP2533835B2 (ja) * 1986-03-07 1996-09-11 大日本印刷株式会社 ホログラム
GB8615197D0 (en) * 1986-06-21 1986-07-23 Renishaw Plc Opto-electronic scale reading apparatus
GB2252175B (en) * 1991-01-22 1994-03-30 British Aerospace A parallax barrier assembly and apparatus
US8493669B2 (en) * 2008-05-30 2013-07-23 The Invention Science Fund I Llc Focusing and sensing apparatus, methods, and systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162711A (en) * 1961-05-05 1964-12-22 Bausch & Lomb Moire fringe constructions including a repeating irregular pattern
US3217590A (en) * 1962-05-14 1965-11-16 American Design Engineering Co Apparatus for producing moire patterns for use in determining the relative position of a pair of elements
NL6711045A (da) * 1967-08-10 1969-02-12
NL6817007A (da) * 1968-11-28 1970-06-01

Also Published As

Publication number Publication date
FR2402886B1 (da) 1983-09-23
JPS5493400A (en) 1979-07-24
DK147953B (da) 1985-01-14
SU1376951A3 (ru) 1988-02-23
DK147953C (da) 1985-07-01
JPS619613B2 (da) 1986-03-25
NO783063L (no) 1979-03-12
AU3969678A (en) 1980-03-13
BR7805904A (pt) 1979-04-24
DE2838509A1 (de) 1979-03-22
CA1109304A (en) 1981-09-22
GB2004085B (en) 1982-03-10
DK379678A (da) 1979-03-10
SE408734B (sv) 1979-07-02
US4242000A (en) 1980-12-30
FI782749A (fi) 1979-03-10
GB2004085A (en) 1979-03-21
ES473587A1 (es) 1979-04-01
SE7710139L (sv) 1979-03-10
NO148973B (no) 1983-10-10
NO148973C (no) 1984-01-18
FR2402886A1 (fr) 1979-04-06
FI67630B (fi) 1984-12-31
AU522933B2 (en) 1982-07-01
AR218683A1 (es) 1980-06-30

Similar Documents

Publication Publication Date Title
FI67630C (fi) Anordning vid raster avsedda att ge upphov till ett moiremoenster
US11774663B2 (en) Light guide plate, backlight module, and display device
EP0006361A1 (en) An illuminated indicator gauge
JP2006300949A (ja) 物体の３次元光学測定のための装置のための投射器
ATE249652T1 (de) Leseanordnung für informationsstreifen mit optisch kodierter information
JP4119254B2 (ja) 位置決定システム
JP2004037317A (ja) 三次元形状測定方法、三次元形状測定装置
DE4226683A1 (de) Optischer bewegungsaufnehmer
US7469839B2 (en) Reflective optical encoder
EP1001457A4 (en) SENSOR AND METHOD FOR DETECTING THE POSITION OF THE SURFACE OF AN OBJECT ALIGNMENT DEVICE EQUIPPED WITH THIS SENSOR AND PRODUCTION METHOD FOR THIS ALIGNMENT DEVICE AND MANUFACTURING METHOD OF DEVICES BY USE OF THIS DEVICE
CN101178445A (zh) 纵向干涉条纹图案投影透镜、光学系统及三维图像采集装置
CN204340854U (zh) 字符板照明构造
US4629325A (en) Leading mark indicator
JP2011040367A (ja) 導光板
JPS5963517A (ja) 光電式エンコ−ダ
US5148019A (en) Moving amount detecting method using a shadow picture diffraction interference pattern
WO2017046945A1 (ja) 光源装置及びそれを利用した照明器具と車両用灯具
EP1577646B2 (en) Optical encoder
JP2024104350A (ja) エンコーダ
JP4343350B2 (ja) 光学式エンコーダ
WO1982001078A1 (en) Leading mark
JPH0253728B2 (da)
SU389399A1 (ru) Датчик линейных перемещений
Yoshino Enhancement of visibility of fringes and exposure time for moiré topography
SU968603A1 (ru) Датчик линейных перемещений

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: BERGKVIST, LARS A.