GB1074810A - Improvements in or relating to photometric measuring apparatus - Google Patents
Improvements in or relating to photometric measuring apparatusInfo
- Publication number
- GB1074810A GB1074810A GB10666A GB10666A GB1074810A GB 1074810 A GB1074810 A GB 1074810A GB 10666 A GB10666 A GB 10666A GB 10666 A GB10666 A GB 10666A GB 1074810 A GB1074810 A GB 1074810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- amplifier
- monochromator
- tape
- measurements
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0096—Microscopes with photometer devices
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1,074,810. Photo-electric measurement. ERNST LEITZ G.m.b.H. Jan. 3, 1966 [Jan. 7, 1965], No. 106/66. Heading G1A. Analysis of an object using a photo-electric microscope involves taking a series of measurements which are stored and then compared with a second series of measurements. In the embodiment described, light from a source (12) passes through a variable monochromator, through the object plane to a photo-cell (3) which is mounted on the microscope tube. Signals corresponding to the intensity incident on the cell pass to an amplifier (5). A beam splitter (11) in the light path and further photo-cell (10) may be provided to compensate for variations in source intensity, by comparing the outputs of the photo-cells in the amplifier (5). In the analysis of the object, a first series of reference values is obtained by varying the wavelength of light incident on a part of the microscope slide not containing the sample, by adjustment of the monochromator. The output of the amplifier (5) is recorded on a tape (7) running in synchronism with the monochromator adjustment. The amplifier output is passed through a converter (6) which may, for example, generate an A. C. signal the frequency of which corresponds to the amplifier output value. The monochromator adjustment is then repeated with part of the object in the light path, the tape now being read out in synchronism so that the reference values previously recorded may be compared, after passing through the converter, with the amplifier output in a comparison device (8), the output of which is indicated or recorded. Instead of a wavelength variation, an extended area of the object may be examined at a constant wavelength. If a plurality of tape tracks are provided, a recording of the measurements on the object may be made on the tape, alongside the reference values. An information track for speech &c. may also be provided. The signals may be converted to digital form for storage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL0049662 | 1965-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1074810A true GB1074810A (en) | 1967-07-05 |
Family
ID=7273094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10666A Expired GB1074810A (en) | 1965-01-07 | 1966-01-03 | Improvements in or relating to photometric measuring apparatus |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT254552B (en) |
| CH (1) | CH430266A (en) |
| FR (1) | FR1463254A (en) |
| GB (1) | GB1074810A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3734621A (en) * | 1971-12-06 | 1973-05-22 | Hewlett Packard Co | Spectrophotometer utilizing memory storage calibration techniques |
| US3972617A (en) * | 1973-11-05 | 1976-08-03 | Shimadzu Seisakusho Ltd. | Spectrophotometer |
| US4146332A (en) * | 1977-04-19 | 1979-03-27 | The United States Of America As Represented By The Secretary Of The Navy | Spectrometer with electronic readout |
| US4171913A (en) * | 1972-12-20 | 1979-10-23 | Varian Techtron Proprietary Limited | Spectrophotometer |
| USRE30391E (en) | 1976-02-23 | 1980-09-02 | Abbott Laboratories | Chemical analysis cuvette |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516785A1 (en) * | 1981-11-20 | 1983-05-27 | Rech Geolog Miniere | Diffused light spectral distribution determn. for dental prostheses - by measuring intensity for each wavelength from irradiation over 1 mm square areas to obtain reflectance and detect structural faults |
-
1965
- 1965-12-16 AT AT1134765A patent/AT254552B/en active
- 1965-12-29 FR FR44166A patent/FR1463254A/en not_active Expired
-
1966
- 1966-01-03 GB GB10666A patent/GB1074810A/en not_active Expired
- 1966-01-06 CH CH14866A patent/CH430266A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3734621A (en) * | 1971-12-06 | 1973-05-22 | Hewlett Packard Co | Spectrophotometer utilizing memory storage calibration techniques |
| US4171913A (en) * | 1972-12-20 | 1979-10-23 | Varian Techtron Proprietary Limited | Spectrophotometer |
| US3972617A (en) * | 1973-11-05 | 1976-08-03 | Shimadzu Seisakusho Ltd. | Spectrophotometer |
| USRE30391E (en) | 1976-02-23 | 1980-09-02 | Abbott Laboratories | Chemical analysis cuvette |
| US4146332A (en) * | 1977-04-19 | 1979-03-27 | The United States Of America As Represented By The Secretary Of The Navy | Spectrometer with electronic readout |
Also Published As
| Publication number | Publication date |
|---|---|
| AT254552B (en) | 1967-05-26 |
| CH430266A (en) | 1967-02-15 |
| FR1463254A (en) | 1966-12-23 |
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