DD117753A1 - - Google Patents
Info
- Publication number
- DD117753A1 DD117753A1 DD18435475A DD18435475A DD117753A1 DD 117753 A1 DD117753 A1 DD 117753A1 DD 18435475 A DD18435475 A DD 18435475A DD 18435475 A DD18435475 A DD 18435475A DD 117753 A1 DD117753 A1 DD 117753A1
- Authority
- DD
- German Democratic Republic
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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95623—Inspecting patterns on the surface of objects using a spatial filtering method
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 Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD18435475A DD117753A1 (xx) | 1975-02-24 | 1975-02-24 | |
| CH218076A CH614047A5 (en) | 1975-02-24 | 1976-02-23 | Method for checking structures |
| JP1857276A JPS51109864A (en) | 1975-02-24 | 1976-02-24 | Device for testing structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD18435475A DD117753A1 (xx) | 1975-02-24 | 1975-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD117753A1 true DD117753A1 (xx) | 1976-01-20 |
Family
ID=5499272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD18435475A DD117753A1 (xx) | 1975-02-24 | 1975-02-24 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH614047A5 (xx) |
| DD (1) | DD117753A1 (xx) |
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1975
- 1975-02-24 DD DD18435475A patent/DD117753A1/xx unknown
-
1976
- 1976-02-23 CH CH218076A patent/CH614047A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH614047A5 (en) | 1979-10-31 |