DE1902101A1 - - Google Patents
Info
- Publication number
- DE1902101A1 DE1902101A1 DE19691902101 DE1902101A DE1902101A1 DE 1902101 A1 DE1902101 A1 DE 1902101A1 DE 19691902101 DE19691902101 DE 19691902101 DE 1902101 A DE1902101 A DE 1902101A DE 1902101 A1 DE1902101 A1 DE 1902101A1
- Authority
- DE
- Germany
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/50—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being pulse modulated and the time difference of their arrival being measured
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691902101 DE1902101A1 (en) | 1969-01-16 | 1969-01-16 | |
| CH30370D CH506058A (en) | 1969-01-16 | 1970-01-09 | Arrangement to distinguish a discrete number of body colors |
| FR7001668A FR2028482A1 (en) | 1969-01-16 | 1970-01-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691902101 DE1902101A1 (en) | 1969-01-16 | 1969-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1902101A1 true DE1902101A1 (en) | 1971-01-21 |
Family
ID=5722602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691902101 Withdrawn DE1902101A1 (en) | 1969-01-16 | 1969-01-16 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH506058A (en) |
| DE (1) | DE1902101A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065484A1 (en) * | 1981-05-08 | 1982-11-24 | GRETAG Aktiengesellschaft | Measuring head for an apparatus measuring colour by diffuse reflection |
| EP0209860A2 (en) * | 1985-07-25 | 1987-01-28 | Firma Carl Zeiss | Apparatus for contactless reflection measurement |
| EP0279191A2 (en) * | 1987-01-22 | 1988-08-24 | Firma Carl Zeiss | Device for contactless measurement of remission |
| FR2699677A1 (en) * | 1992-12-22 | 1994-06-24 | Bertin & Cie | Method and device for determining the color of a transparent, diffusing and absorbing object, such as in particular a tooth. |
-
1969
- 1969-01-16 DE DE19691902101 patent/DE1902101A1/de not_active Withdrawn
-
1970
- 1970-01-09 CH CH30370D patent/CH506058A/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065484A1 (en) * | 1981-05-08 | 1982-11-24 | GRETAG Aktiengesellschaft | Measuring head for an apparatus measuring colour by diffuse reflection |
| EP0209860A2 (en) * | 1985-07-25 | 1987-01-28 | Firma Carl Zeiss | Apparatus for contactless reflection measurement |
| EP0209860A3 (en) * | 1985-07-25 | 1989-03-22 | Firma Carl Zeiss | Apparatus for contactless reflection measurement |
| EP0279191A2 (en) * | 1987-01-22 | 1988-08-24 | Firma Carl Zeiss | Device for contactless measurement of remission |
| EP0279191A3 (en) * | 1987-01-22 | 1989-10-04 | Firma Carl Zeiss | Device for contactless measurement of remission |
| US4919535A (en) * | 1987-01-22 | 1990-04-24 | Carl-Zeiss-Stiftung | Reflectance measuring apparatus for making contactless measurements |
| FR2699677A1 (en) * | 1992-12-22 | 1994-06-24 | Bertin & Cie | Method and device for determining the color of a transparent, diffusing and absorbing object, such as in particular a tooth. |
| US5428450A (en) * | 1992-12-22 | 1995-06-27 | Bertin & Cie | Method and apparatus for determining the color of an object that is transparent, diffusing, and absorbent, such as a tooth, in particular |
Also Published As
| Publication number | Publication date |
|---|---|
| CH506058A (en) | 1971-04-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |