GB1321370A - Determination of the gribhtness or optical density of an object - Google Patents

Determination of the gribhtness or optical density of an object

Info

Publication number
GB1321370A
GB1321370A GB3303971A GB3303971A GB1321370A GB 1321370 A GB1321370 A GB 1321370A GB 3303971 A GB3303971 A GB 3303971A GB 3303971 A GB3303971 A GB 3303971A GB 1321370 A GB1321370 A GB 1321370A
Authority
GB
United Kingdom
Prior art keywords
optical density
symbols
different
gribhtness
determination
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
GB3303971A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1321370A publication Critical patent/GB1321370A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges
    • 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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
    • G01J1/14—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means using comparison with a surface of graded brightness
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03564—Mixed grains or mixture of emulsions

Abstract

1321370 Equldensity photometry AGFAGEVAERT AG 14 July 1971 [18 July 1970] 33039/71 Heading G2C The brightness or optical density distribution of an object is determined by exposing simultaneously or separately a light-sensitive material to the object and to a screen which has a plurality of different densities and then processing the material to give an image showing equidensities. Preferably the equidensity process and lightsensitive material are as described and claimed in Specification 1248071. The screen may have dots each with a range of densities; or it may have a plurality of different symbols, each symbol having a different density from the other symbols, all identical symbols having the same density.
GB3303971A 1970-07-18 1971-07-14 Determination of the gribhtness or optical density of an object Expired GB1321370A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2035798A DE2035798C3 (en) 1970-07-18 1970-07-18 Photographic process

Publications (1)

Publication Number Publication Date
GB1321370A true GB1321370A (en) 1973-06-27

Family

ID=5777220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3303971A Expired GB1321370A (en) 1970-07-18 1971-07-14 Determination of the gribhtness or optical density of an object

Country Status (7)

Country Link
US (1) US3779755A (en)
BE (1) BE769749A (en)
CA (1) CA971413A (en)
CH (1) CH560917A5 (en)
DE (1) DE2035798C3 (en)
FR (1) FR2103040A5 (en)
GB (1) GB1321370A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606603A1 (en) * 1996-02-22 1997-08-28 Beck Bernhard Filtering out intense radiation on defined surface in defined time

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119669B (en) * 1958-12-27 1961-12-14 Agfa Ag Contact grid for reproduction photography and its production
BE610142A (en) * 1960-11-14
US3637388A (en) * 1967-12-18 1972-01-25 Agfa Gevaert Ag Process for the photographic production of equidensities

Also Published As

Publication number Publication date
CA971413A (en) 1975-07-22
DE2035798A1 (en) 1972-02-03
DE2035798B2 (en) 1978-05-24
US3779755A (en) 1973-12-18
CH560917A5 (en) 1975-04-15
BE769749A (en) 1972-01-10
FR2103040A5 (en) 1972-04-07
DE2035798C3 (en) 1979-01-11

Similar Documents

Publication Publication Date Title
JPS54109432A (en) Three dimentional color photographic method
BE744050A (en) PROCESS FOR THE MANUFACTURE OF A CATHODIC TUBE FOR THE REPRODUCTION OF IMAGES FOR COLOR TELEVISION, AND THUS OBTAINED CATHODIC TUBE
CA942115A (en) Method of producing photographic images by rapid processing
CH556557A (en) PROCESS FOR THE REDUCED REPRODUCTION OF X-ray images.
CA923357A (en) Method of making screen printing articles
GB1321370A (en) Determination of the gribhtness or optical density of an object
CA927649A (en) Color electrophotographic process
CA922957A (en) Image density control
CA968457A (en) Raster process for classifying characters
CA945473A (en) PROCESS FOR STABILIZATION OF A COMPOSITION OF 2.alpha.,3.alpha.-EPITHIO-ANDROSTANES AND COMPOSITION OBTAINED THEREBY
CH556043A (en) PROCESS FOR PRODUCING NEGATIVE HALFTONE IMAGES.
CS179359B2 (en) Method of processing polyethylene.
SU580902A1 (en) Photometric classification method
GB1328269A (en) Method of producing a colour radiograph from a monochrome one
CA898040A (en) Method of producing photographic images by rapid processing
CA828044A (en) Dimensionally stabilized paper and process for producing same
CA949799A (en) Durable transparent mask for photographical processing and method of making the same
CA829239A (en) Photographic elements and process for producing vesicular images
CA814936A (en) Color photographic development process
CA819661A (en) Colour photographic process
CA826613A (en) Method of producing photographic images
CA824089A (en) Electrophotographic developing process for colour images
CA807143A (en) 10.alpha.-STEROIDS AND PROCESS FOR THEIR MANUFACTURE
CA807144A (en) 10.alpha.-STEROIDS AND PROCESS FOR THEIR MANUFACTURE
CA811675A (en) Process for the production of color photographic images by the silver-dye-bleach process

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee