GB355534A - Improvements in devices for influencing by means of a ray projector a cell sensitive to light - Google Patents

Improvements in devices for influencing by means of a ray projector a cell sensitive to light

Info

Publication number
GB355534A
GB355534A GB26726/30A GB2672630A GB355534A GB 355534 A GB355534 A GB 355534A GB 26726/30 A GB26726/30 A GB 26726/30A GB 2672630 A GB2672630 A GB 2672630A GB 355534 A GB355534 A GB 355534A
Authority
GB
United Kingdom
Prior art keywords
light
cell
lens system
influencing
devices
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
GB26726/30A
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 GB355534A publication Critical patent/GB355534A/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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0451—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using means for illuminating a slit efficiently, e.g. entrance slit of a photometer or entrance face of fiber

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

355,534. Track apparatus actuating signals on trains. ZEISS, C. [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Sept. 8, 1930, No. 26726. Convention date, Sept. 20, 1929. [Class 105.] In light-control systems in which relative movement in the direction of the arrows occurs between a light-sensitive cell a and light source b, a lens system d projects an image of the source b on a lens system e which projects an image of the lens system d on the cell a so that the sensitive surface of the cell is completely covered by light even when little radiation from the source enters the lens system d. The invention is applicable for actuating train signals, the cell a being carried by the train, and the light source b located near the track.
GB26726/30A 1929-09-20 1930-09-08 Improvements in devices for influencing by means of a ray projector a cell sensitive to light Expired GB355534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE355534X 1929-09-20

Publications (1)

Publication Number Publication Date
GB355534A true GB355534A (en) 1931-08-27

Family

ID=6290008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26726/30A Expired GB355534A (en) 1929-09-20 1930-09-08 Improvements in devices for influencing by means of a ray projector a cell sensitive to light

Country Status (1)

Country Link
GB (1) GB355534A (en)

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