GB650457A - Improvements in recording images by means of phosphors - Google Patents
Improvements in recording images by means of phosphorsInfo
- Publication number
- GB650457A GB650457A GB8159/47A GB815947A GB650457A GB 650457 A GB650457 A GB 650457A GB 8159/47 A GB8159/47 A GB 8159/47A GB 815947 A GB815947 A GB 815947A GB 650457 A GB650457 A GB 650457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphor
- light
- red
- excited
- layer
- 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
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 11
- 230000004936 stimulating effect Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 230000005855 radiation Effects 0.000 abstract 2
- 241000282979 Alces alces Species 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0805—Chalcogenides
- C09K11/0811—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0805—Chalcogenides
- C09K11/0816—Chalcogenides with alkaline earth metals
-
- 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
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C5/164—Infrared processes
-
- 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
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C5/17—X-ray, infrared, or ultraviolet ray processes using screens to intensify X-ray images
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
650,457. Luminescent recording processes. KODAK, Ltd. March 25, 1947, No. 8159. Convention date, March 26, 1946. Drawings to Specification. [Classes 98 (i) and 98 (ii)] [Also in Group XL (a)] A method of delayed-action recording of a short wavelength image comprises projecting the image on to a layer of a phosphor which stores the exciting radiation and releases at least a part of it, when stimulated with longer wavelength radiation such as red or infra-red light, as light of intermediate wavelength, placing the excited phosphor layer in contact with, or if a projection system is interposed, in a plane conjugate to that of the recording layer and stimulating the excited phosphor to form an image on the recording layer. This layer may either be a photographic layer and a permanent image formed by the usual processing steps or merely a layer on which the image can be observed and recorded manually as by tracing. Numerous examples of suitable phosphors are given in the Specification and are included in the list given in Specification 650,455. When making copies of an original, the phosphor is excited image-wise by passing light from an ultra-violet lamp through the orignal or causing such light to pass through the phosphor first, when it then is excited by the light reflected from the more opaque parts of the original. The excited phosphor is then stimulated by uniform illumination with infrared light so as to print on to a light-sensitive sheet contacting the phosphor by means of the light emitted by the latter. If several prints are required from a single excitation of the phosphor the intensity of the stimulating infrared light is progressively increased to maintain the exposure time constant. To increase the sensitivity of the phosphor to the stimulating infra-red, it may be initially either strongly excited with ultra-violet and partially exhausted with infra-red, or partially excited with ultra-violet. In an application to recording galvanometer deflections, ultra-violet light is reflected from the galvanometer mirror and projected on to a continuously moving phosphor band. The faintly luminescent trace may be examined and either obliterated by flooding with red or infra-red light or a permanent record made on stimulating the phosphor with infra-red. Specifications 650,458 and 650,459, [both in Group XL (a)], also are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US650457XA | 1946-03-26 | 1946-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB650457A true GB650457A (en) | 1951-02-28 |
Family
ID=22059985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8159/47A Expired GB650457A (en) | 1946-03-26 | 1947-03-25 | Improvements in recording images by means of phosphors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB650457A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142158A (en) * | 1983-05-25 | 1985-01-09 | Philips Electronic Associated | Electron lithography masks |
-
1947
- 1947-03-25 GB GB8159/47A patent/GB650457A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2142158A (en) * | 1983-05-25 | 1985-01-09 | Philips Electronic Associated | Electron lithography masks |
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