CH545463A - Device for generating a flat or conical reference surface described by a light beam - Google Patents

Device for generating a flat or conical reference surface described by a light beam

Info

Publication number
CH545463A
CH545463A CH1672171A CH1672171A CH545463A CH 545463 A CH545463 A CH 545463A CH 1672171 A CH1672171 A CH 1672171A CH 1672171 A CH1672171 A CH 1672171A CH 545463 A CH545463 A CH 545463A
Authority
CH
Switzerland
Prior art keywords
flat
generating
light beam
reference surface
surface described
Prior art date
Application number
CH1672171A
Other languages
German (de)
Inventor
Samuel Ljungdahl Erland
Axel Ekstrom Lars
Original Assignee
Samuel Ljungdahl Erland
Axel Ekstrom Lars
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 Samuel Ljungdahl Erland, Axel Ekstrom Lars filed Critical Samuel Ljungdahl Erland
Publication of CH545463A publication Critical patent/CH545463A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Mechanical Optical Scanning Systems (AREA)
CH1672171A 1970-11-18 1971-11-17 Device for generating a flat or conical reference surface described by a light beam CH545463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1557170A SE347351B (en) 1970-11-18 1970-11-18

Publications (1)

Publication Number Publication Date
CH545463A true CH545463A (en) 1973-12-15

Family

ID=20300859

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1672171A CH545463A (en) 1970-11-18 1971-11-17 Device for generating a flat or conical reference surface described by a light beam

Country Status (6)

Country Link
CH (1) CH545463A (en)
DE (1) DE2157113A1 (en)
FR (1) FR2114784A5 (en)
GB (1) GB1375710A (en)
NL (1) NL7115933A (en)
SE (1) SE347351B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662707A (en) * 1985-09-27 1987-05-05 Spectra-Physics, Inc. Lighthouse structure and compensating lens in reference laser beam projecting apparatus
US4993161A (en) * 1990-01-04 1991-02-19 David White, Inc. Laser beam level instrument
DE9418591U1 (en) * 1994-11-21 1995-02-16 M. Hensoldt und Söhne Wetzlar Optische Werke AG, 35576 Wetzlar Leveling device working with a laser beam
FR2965912B1 (en) * 2010-10-07 2013-04-26 Rieux Des METROLOGY DEVICE FOR TRACING REFERENCE LINES ON THE INTERNAL WALL OF A ROTARY FURNACE

Also Published As

Publication number Publication date
GB1375710A (en) 1974-11-27
SE347351B (en) 1972-07-31
FR2114784A5 (en) 1972-06-30
DE2157113A1 (en) 1972-05-25
NL7115933A (en) 1972-05-23

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased