GB1407812A - Testing of transparent members - Google Patents
Testing of transparent membersInfo
- Publication number
- GB1407812A GB1407812A GB1107572A GB1107572A GB1407812A GB 1407812 A GB1407812 A GB 1407812A GB 1107572 A GB1107572 A GB 1107572A GB 1107572 A GB1107572 A GB 1107572A GB 1407812 A GB1407812 A GB 1407812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- windscreen
- image
- beams
- march
- 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
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
1407812 Optically testing transparent members BRITISH AIRCRAFT CORP Ltd 7 March 1973 [9 March 1972] 11075/72 Heading G2J The optical properties of a transparent member 4, e.g. a windscreen, are tested by mounting the windscreen between a screen 1 and a projector 2 which normally directs two identical image beams to form a superimposed image on the screen. The two beams are spaced apart by a distance equal to the spacing of the human eyes, and each projects an image of a device, e.g. a pattern of squares and circles, see Fig. 3 (not shown). The beams may be of different colours, e.g. red and green, and the screen 1 may be translucent for viewing or photographing from the rear. Imperfections in the windscreen, which is movably mounted, cause the image patterns to be relatively displaced on the screen 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1107572A GB1407812A (en) | 1972-03-09 | 1972-03-09 | Testing of transparent members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1107572A GB1407812A (en) | 1972-03-09 | 1972-03-09 | Testing of transparent members |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1407812A true GB1407812A (en) | 1975-09-24 |
Family
ID=9979567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1107572A Expired GB1407812A (en) | 1972-03-09 | 1972-03-09 | Testing of transparent members |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1407812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461570A (en) * | 1982-06-09 | 1984-07-24 | The United States Of America As Represented By The Secretary Of The Air Force | Method for dynamically recording distortion in a transparency |
| GB2209611A (en) * | 1987-06-19 | 1989-05-17 | British Aerospace | Remotely controlled optical test equipment |
-
1972
- 1972-03-09 GB GB1107572A patent/GB1407812A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461570A (en) * | 1982-06-09 | 1984-07-24 | The United States Of America As Represented By The Secretary Of The Air Force | Method for dynamically recording distortion in a transparency |
| GB2209611A (en) * | 1987-06-19 | 1989-05-17 | British Aerospace | Remotely controlled optical test equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1419945A (en) | Reag projection screen | |
| GB1297139A (en) | ||
| GB1168005A (en) | A Method of and Apparatus for Determining Geometrical Deviations from a Desired Surface by Optical Means | |
| ATE121853T1 (en) | DEVICE FOR PROJECTING LIGHT PATTERNS. | |
| GB1184984A (en) | Display System | |
| US3447129A (en) | Aircraft depth-of-flash optical guidance system | |
| GB1094392A (en) | Optical method for measuring the separation between relatively movable objects | |
| GB1333532A (en) | Method and means for testing the colour discrimination of vision | |
| GB1407812A (en) | Testing of transparent members | |
| GB1207515A (en) | Improvements relating to the optical alignment of patterns | |
| GB1262095A (en) | Controlled degradation of a visual scene | |
| GB1510995A (en) | Device for testing the visual field of an eye | |
| GB1029929A (en) | Optical apparatus for determining correlation or convolution functions | |
| GB1154005A (en) | Improvements in or relating to Projection Systems | |
| GB1360619A (en) | Apparatus for testing beams of light | |
| US3586429A (en) | Method and apparatus for optically recording dual images | |
| GB1203748A (en) | Improvement in or relating to an apparatus for projecting written characters | |
| GB1373649A (en) | Luminance distribution photometers | |
| GB906042A (en) | Improvements in or relating to optical apparatus for creating the illusion of movement in simulated vehicles | |
| GB1411439A (en) | Optical velocity measuring apparatus | |
| GB1119074A (en) | Improvements in devices for measuring angles | |
| FR2337329A1 (en) | Optical comparator for spatial coordinates - projects two grid patterns on surface of tested object from optical systems fixed w.r.t. reference point | |
| GB1413169A (en) | Apparatus for viewing simulated fabrics | |
| GB1373423A (en) | Apparatus for simulating the appearance of an object against a background scene | |
| GB729384A (en) | Apparatus for demonstrating theory of light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |