FR1544955A - Densitometer for measuring the optical densities of transparency and reflection of a surface - Google Patents
Densitometer for measuring the optical densities of transparency and reflection of a surfaceInfo
- Publication number
- FR1544955A FR1544955A FR128610A FR128610A FR1544955A FR 1544955 A FR1544955 A FR 1544955A FR 128610 A FR128610 A FR 128610A FR 128610 A FR128610 A FR 128610A FR 1544955 A FR1544955 A FR 1544955A
- Authority
- FR
- France
- Prior art keywords
- densitometer
- transparency
- reflection
- measuring
- optical densities
- 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
- 230000003287 optical effect Effects 0.000 title 1
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
- G01N21/86—Investigating moving sheets
-
- 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
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0096—Microscopes with photometer devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR128610A FR1544955A (en) | 1966-11-18 | 1967-11-17 | Densitometer for measuring the optical densities of transparency and reflection of a surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS734066 | 1966-11-18 | ||
FR128610A FR1544955A (en) | 1966-11-18 | 1967-11-17 | Densitometer for measuring the optical densities of transparency and reflection of a surface |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1544955A true FR1544955A (en) | 1968-11-08 |
Family
ID=25746487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR128610A Expired FR1544955A (en) | 1966-11-18 | 1967-11-17 | Densitometer for measuring the optical densities of transparency and reflection of a surface |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1544955A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986005000A1 (en) * | 1985-02-23 | 1986-08-28 | Ernst Leitz Wetzlar Gmbh | Process and device for inputting, making visible and/or recording a variable measurement spot in a beam path of a camera for optical equipment |
-
1967
- 1967-11-17 FR FR128610A patent/FR1544955A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986005000A1 (en) * | 1985-02-23 | 1986-08-28 | Ernst Leitz Wetzlar Gmbh | Process and device for inputting, making visible and/or recording a variable measurement spot in a beam path of a camera for optical equipment |
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