GB359320A - Improvements in refractometers - Google Patents

Improvements in refractometers

Info

Publication number
GB359320A
GB359320A GB96031A GB96031A GB359320A GB 359320 A GB359320 A GB 359320A GB 96031 A GB96031 A GB 96031A GB 96031 A GB96031 A GB 96031A GB 359320 A GB359320 A GB 359320A
Authority
GB
United Kingdom
Prior art keywords
scale
telescope
zeiss
jan
marked
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
GB96031A
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 GB359320A publication Critical patent/GB359320A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Telescopes (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

359,320. Refractometers. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Jan. 12, 1931, No. 960. Convention date, Jan. 14, 1930. [Class 97 (i).] In a refractometer operating by total reflection and having a scale in the field of view of the observing telescope, a plane parallel plate inclined to, and rotatable about, the axis of the telescope is provided to enable the boundarv line of the reflection field to be brought into coincidence with one of the division lines of the scale. The instrument comprises a telescope a with the scale plate a<3> in its image plane and a measuring prism b in contact with an illumination prism b<1> in front of the objective a<1>. The inclined parallel-sided plate c is mounted in a rotatable ring d on which is marked a scale, the index for which is marked on a separate adjustable ring e.
GB96031A 1930-01-15 1931-01-12 Improvements in refractometers Expired GB359320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE522914T 1930-01-15

Publications (1)

Publication Number Publication Date
GB359320A true GB359320A (en) 1931-10-22

Family

ID=34085420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB96031A Expired GB359320A (en) 1930-01-15 1931-01-12 Improvements in refractometers

Country Status (2)

Country Link
DE (1) DE522914C (en)
GB (1) GB359320A (en)

Also Published As

Publication number Publication date
DE522914C (en) 1931-04-16

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