[go: up one dir, main page]

GB369511A - Improvements in methods and instruments for determining the diameter of bodies with curved surfaces - Google Patents

Improvements in methods and instruments for determining the diameter of bodies with curved surfaces

Info

Publication number
GB369511A
GB369511A GB22847/31A GB2284731A GB369511A GB 369511 A GB369511 A GB 369511A GB 22847/31 A GB22847/31 A GB 22847/31A GB 2284731 A GB2284731 A GB 2284731A GB 369511 A GB369511 A GB 369511A
Authority
GB
United Kingdom
Prior art keywords
cylinder
slide
distance
microscope
adjusted
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB22847/31A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB369511A publication Critical patent/GB369511A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

369,511. Gauging-apparatus. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Aug. 13, 1931, No. 22847. Convention date, Aug. 18, 1930. [Class 106 (ii).] A method and means for measuring diameters comprises illuminating tangentially the ends of the diameter by light pencils and measuring the distance between interference bands at each end such distance being diminished by the calculated distance of the bands from the surfaces. A table 1 mounted on four legs 2 is provided with a slide 4 displaceable by a spindle 5, the slide carrying two measuring microscopes 9, 10 with axes at rightangles to the direction of movement of the slide. A stepped supporting plate 16 connects the legs 2 on which is provided a glass scale 17 the lower part of the plate 16 being broadened to take supports 20 provided with centres 21 on which the cylinder 19 or other object is mounted. A lower slide 25 moving parallel to the slide 4 carries a collimator 30 provided with a lamp 32 and diaphragm 33 having a fine slit parallel to the line of the centres 21 and passing through the focus of a lens 34. By turning the wheel 28 the light pencil is adjusted tangentially to one side of the cylinder 19. The microscope 9 which has relatively large magnification is now adjusted to image sharply the horizontal plane containing the axis of the centres and so that the illuminated edge of the cylinder 19 lies in the centre of the field. The microscope 10 is adjusted so that a division of the scale 17 is sharply imaged between the double threads of the microscope. In the microscope 9 there is now visible interference bands parallel to the edge of the cylinder. The reticule is adjusted to one band and the values read on the scale 17 and in the eyepiece micrometer 13. This is now repeated for the other edge of the cylinder. The difference between the readings gives the distance between the interference bands which distance to give the required diameter is diminished by the sum of the distances of the bands from the surface of the cylinder obtained by calculation. In another form the microscopes are mounted in the top plate but are interchanged and the scale 17 and supports 20 mounted on a slide the collimator being fixed.
GB22847/31A 1930-08-18 1931-08-13 Improvements in methods and instruments for determining the diameter of bodies with curved surfaces Expired GB369511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE369511X 1930-08-18

Publications (1)

Publication Number Publication Date
GB369511A true GB369511A (en) 1932-03-24

Family

ID=6318296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22847/31A Expired GB369511A (en) 1930-08-18 1931-08-13 Improvements in methods and instruments for determining the diameter of bodies with curved surfaces

Country Status (1)

Country Link
GB (1) GB369511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895835C (en) * 1939-03-23 1953-11-05 Albert Strasmann K G Device for measuring and comparing profiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895835C (en) * 1939-03-23 1953-11-05 Albert Strasmann K G Device for measuring and comparing profiles

Similar Documents

Publication Publication Date Title
US4784485A (en) Contact lens zonometer
Dyson An interferometer microscope
US1959537A (en) Instrument for determining the diameter of bodies with curved surfaces
US3028782A (en) Interferometer for measuring spherical surfaces
Wright The methods of petrographic-microscopic research: their relative accuracy and range of application
CN206179366U (en) Double sided mirror interference experiment device
GB369511A (en) Improvements in methods and instruments for determining the diameter of bodies with curved surfaces
Van Heel VIII Modern Alignment Devices
US2351770A (en) Device for measuring thickness of objects
Millar The diffraction method of measuring the diameters of erythrocytes
GB395649A (en) Improvements in methods and apparatus for microscopically examining the profiles of surfaces
US2574522A (en) Microscope slide for phase microscopes
GB482262A (en) Improvements in optical scale-reading apparatus
US1524089A (en) Measuring device
US1928001A (en) Projection indicator measuring instrument
Takeda et al. Moiré stereomicroscope
Zeiss Optische werkstaette, Jena: microscopes and microscopic accessories.[Catalogue].
GB408899A (en) Improvements in microscopes for examining the profiles of surfaces
GB393892A (en) Improvements in devices for examining the diameter of bores
US2532878A (en) Device for measuring the distance between the optical centers of two or more lenses or optical systems
US2391210A (en) Optical objective
Martin et al. The measurement of chromatic aberration on the Hilger lens testing interferometer
Guild Curvature measurements
GB357931A (en) Improvements in methods and instruments for measuring the curvature of the cornea
Kolomiitsov Interference method for the examination of the surface waviness of balls