GB2062894B - Optical density measuring device - Google Patents

Optical density measuring device

Info

Publication number
GB2062894B
GB2062894B GB8020523A GB8020523A GB2062894B GB 2062894 B GB2062894 B GB 2062894B GB 8020523 A GB8020523 A GB 8020523A GB 8020523 A GB8020523 A GB 8020523A GB 2062894 B GB2062894 B GB 2062894B
Authority
GB
United Kingdom
Prior art keywords
measuring device
optical density
density measuring
optical
measuring
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
GB8020523A
Other languages
English (en)
Other versions
GB2062894A (en
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE2925188A external-priority patent/DE2925188C2/de
Application filed by Individual filed Critical Individual
Priority to US06/242,408 priority Critical patent/US4350584A/en
Publication of GB2062894A publication Critical patent/GB2062894A/en
Application granted granted Critical
Publication of GB2062894B publication Critical patent/GB2062894B/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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4223—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for copy - or printing apparatus
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/725—Optical projection devices wherein the contrast is controlled electrically (e.g. cathode ray tube masking)
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/09908—Arrangement of photoelectric elements in or on the camera on the camera or in the objective

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB8020523A 1979-06-22 1980-06-23 Optical density measuring device Expired GB2062894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/242,408 US4350584A (en) 1980-06-02 1981-03-10 Garden sieve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2925188A DE2925188C2 (de) 1979-06-22 1979-06-22 Meßsonde zur Dichtemessung von Bildvorlagen
DE19792943474 DE2943474A1 (de) 1979-06-22 1979-10-27 Messsonde

Publications (2)

Publication Number Publication Date
GB2062894A GB2062894A (en) 1981-05-28
GB2062894B true GB2062894B (en) 1984-03-07

Family

ID=25779621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8020523A Expired GB2062894B (en) 1979-06-22 1980-06-23 Optical density measuring device

Country Status (4)

Country Link
CH (1) CH647866A5 (US08197722-20120612-C00042.png)
DE (1) DE2943474A1 (US08197722-20120612-C00042.png)
DK (1) DK259480A (US08197722-20120612-C00042.png)
GB (1) GB2062894B (US08197722-20120612-C00042.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723701A1 (de) * 1987-07-17 1989-02-02 Krzyminski Harald Handmessgeraet zur optischen reflexionsmessung

Also Published As

Publication number Publication date
DK259480A (da) 1980-12-23
DE2943474A1 (de) 1981-05-21
DE2943474C2 (US08197722-20120612-C00042.png) 1987-04-23
GB2062894A (en) 1981-05-28
CH647866A5 (de) 1985-02-15

Similar Documents

Publication Publication Date Title
GB2034460B (en) Optical measuring device
JPS55162027A (en) Optical measuring apparatus
GB2010476B (en) Optical measuring device
JPS55130506A (en) Optical device
JPS55140111A (en) Optical fiber measurement device
GB1550073A (en) Optical probe
JPS56110028A (en) Optical measuring device
JPS568102A (en) Optical device
JPS5417064A (en) Optical measuring device
JPS5666810A (en) Distance meter for optical device
JPS5690240A (en) Liquidddensity measuring device
JPS5599053A (en) Noocontact potential measuring device
JPS567004A (en) Optical device for measuring very small quantity
JPS5616824A (en) Relative difference measuring device
JPS54128361A (en) Optical measuring device
GB2049431B (en) Measuring device
GB2066959B (en) Measuring device
JPS54128756A (en) Optical measuring device
JPS5651648A (en) View measuring device
JPS5619401A (en) Measuring device
JPS5677793A (en) Radiation measuring device
JPS562596A (en) Temperatuer measuring device
GB2044922B (en) Opto-electronic reading apparatus
JPS56127296A (en) Optical measuring device
JPS53123184A (en) Optical measuring device

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee