GB2158960B - Photographic enlarger control - Google Patents
Photographic enlarger controlInfo
- Publication number
- GB2158960B GB2158960B GB08409773A GB8409773A GB2158960B GB 2158960 B GB2158960 B GB 2158960B GB 08409773 A GB08409773 A GB 08409773A GB 8409773 A GB8409773 A GB 8409773A GB 2158960 B GB2158960 B GB 2158960B
- Authority
- GB
- United Kingdom
- Prior art keywords
- photographic enlarger
- control
- enlarger control
- photographic
- enlarger
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08409773A GB2158960B (en) | 1984-04-14 | 1984-04-14 | Photographic enlarger control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08409773A GB2158960B (en) | 1984-04-14 | 1984-04-14 | Photographic enlarger control |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2158960A GB2158960A (en) | 1985-11-20 |
GB2158960B true GB2158960B (en) | 1988-06-02 |
Family
ID=10559687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08409773A Expired GB2158960B (en) | 1984-04-14 | 1984-04-14 | Photographic enlarger control |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2158960B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5084727A (en) * | 1990-12-21 | 1992-01-28 | Eastman Kodak Company | Method and apparatus for photographic exposure using an LCD pad |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3437704A1 (en) * | 1984-01-02 | 1985-07-11 | Jenoptik Jena Gmbh, Ddr 6900 Jena | RECEIVER UNIT FOR GLARE PROTECTIVE GLASSES |
US4615619A (en) * | 1984-03-19 | 1986-10-07 | D.O.M. Associates, Inc. | Stationary, electrically alterable, optical masking device and spectroscopic apparatus employing same |
-
1984
- 1984-04-14 GB GB08409773A patent/GB2158960B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2158960A (en) | 1985-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |