GB147146A - Improvements in or relating to photometric apparatus - Google Patents

Improvements in or relating to photometric apparatus

Info

Publication number
GB147146A
GB147146A GB19191/20A GB1919120A GB147146A GB 147146 A GB147146 A GB 147146A GB 19191/20 A GB19191/20 A GB 19191/20A GB 1919120 A GB1919120 A GB 1919120A GB 147146 A GB147146 A GB 147146A
Authority
GB
United Kingdom
Prior art keywords
illumination
screen
colour
temperature
screens
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
GB19191/20A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB147146A publication Critical patent/GB147146A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
    • G01J5/605—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature using visual determination

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

147,146. Siiemens & Halske Akt.-Ges. July 8, 1919, [Convention date]. Addition to 112,614, Photometric apparatus.-Photometric apparatus as described in the parent Specification is used for measuring the temperature of incandescent bodies, a scale of temperature and a reading device being provided in connexion with the means for adjusting the colour screens. The apparatus comprises a casing g containing a standard light l, and red and blue-green colour screens fr, fg, which are carried in a movable frame r. The position of the frame is adjustable by means of a screw s having a knob k n carrying a pointer z working over a dial a. The incandescent body is placed behind a screen n, and the illumination of the screen is adjusted by shutters i until it is equal to the illumination of a ground glass screen m. The comparison of the illumination is made by means of a Lummer-Brodhun prism e and an eye-piece c. The colour screens are then adjusted so that the colour of the standard light is the same as that of the incandescent body, and the temperature is read off. The apparatus may be modified so that the illumination of the screen m is adjustable. The Specification as open to inspection under Sect. 91 (3) (a) refers to a construction of apparatus comprising three colour screens as described in the parent Specification. This subject-matter does not appear in the Specification as accepted.
GB19191/20A 1919-07-08 1920-07-07 Improvements in or relating to photometric apparatus Expired GB147146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE147146X 1919-07-08

Publications (1)

Publication Number Publication Date
GB147146A true GB147146A (en) 1921-06-23

Family

ID=5671818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19191/20A Expired GB147146A (en) 1919-07-08 1920-07-07 Improvements in or relating to photometric apparatus

Country Status (1)

Country Link
GB (1) GB147146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572488A (en) * 1947-02-04 1951-10-23 Jagersberger Adolf Apparatus for the measurment of temperature by color comparison

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572488A (en) * 1947-02-04 1951-10-23 Jagersberger Adolf Apparatus for the measurment of temperature by color comparison

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