GB761636A - Improvements in or relating to arrangements comprising an x-ray device having an x-ray image intensifier tube - Google Patents
Improvements in or relating to arrangements comprising an x-ray device having an x-ray image intensifier tubeInfo
- Publication number
- GB761636A GB761636A GB32403/54A GB3240354A GB761636A GB 761636 A GB761636 A GB 761636A GB 32403/54 A GB32403/54 A GB 32403/54A GB 3240354 A GB3240354 A GB 3240354A GB 761636 A GB761636 A GB 761636A
- Authority
- GB
- United Kingdom
- Prior art keywords
- image
- plate
- lens
- exit pupil
- screen
- 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
- 210000001747 pupil Anatomy 0.000 abstract 3
- 239000005338 frosted glass Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/30—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from X-rays
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telescopes (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
761,636. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 9, 1954 [Nov. 12,1953], No. 32403/54. Class 98(1) In X-ray apparatus including an electronic image intensifier, an objective lens and a magnifying lens are mounted behind the output screen, and a light-diffusing screen, which may be removable, is placed at the region wherein an image of the output screen is formed by the objective. As shown, an image IV of an object II is produced on the output screen 6 of an image intensifier 4 by means of an X-ray tube 1. An objective lens 8 and a mirror 9 produce an image of the screen at V, and this image is seen as a virtual image VI formed by a lens 11, which appears as an image VII after reflection at a mirror 13. The mirrors and lenses may be mounted in a housing 18, rotatable about the axis of lens 8. The exit pupil for direct observation is of diameter d 14. If a plate of frosted glass 10 is placed at V, the light is diffused and the exit pupil is enlarged to diameter d 17, and can therefore be more easily found. The image will be brightest where formed by rays passing directly through the plate 10, so the position of the original exit pupil may easily be found, the plate then being retracted for direct observation. The plate may be frosted only in parts, e.g. an annulus or parallel strips, with an area of clear glass between; in this case the plate need not be retracted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL761636X | 1953-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB761636A true GB761636A (en) | 1956-11-14 |
Family
ID=19827487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32403/54A Expired GB761636A (en) | 1953-11-12 | 1954-11-09 | Improvements in or relating to arrangements comprising an x-ray device having an x-ray image intensifier tube |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB761636A (en) |
-
1954
- 1954-11-09 GB GB32403/54A patent/GB761636A/en not_active Expired
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