GB1304258A - - Google Patents
Info
- Publication number
- GB1304258A GB1304258A GB1304258DA GB1304258A GB 1304258 A GB1304258 A GB 1304258A GB 1304258D A GB1304258D A GB 1304258DA GB 1304258 A GB1304258 A GB 1304258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- photo
- beams
- visibility
- region
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3249770 | 1970-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1304258A true GB1304258A (fr) | 1973-01-24 |
Family
ID=10339514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1304258D Expired GB1304258A (fr) | 1970-07-03 | 1970-07-03 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1304258A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102621101A (zh) * | 2012-01-08 | 2012-08-01 | 杨少辰 | 激光能见度仪 |
-
1970
- 1970-07-03 GB GB1304258D patent/GB1304258A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102621101A (zh) * | 2012-01-08 | 2012-08-01 | 杨少辰 | 激光能见度仪 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |