SE322351B - - Google Patents
Info
- Publication number
- SE322351B SE322351B SE256165A SE256165A SE322351B SE 322351 B SE322351 B SE 322351B SE 256165 A SE256165 A SE 256165A SE 256165 A SE256165 A SE 256165A SE 322351 B SE322351 B SE 322351B
- Authority
- SE
- Sweden
- Prior art keywords
- feb
- light
- particle
- particles
- penrecorder
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
- G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1,036,045. Counting particles. TECHNICON INSTRUMENTS CORPORATION. Feb. 18, 1965 [Feb. 27, 1964], No. 7015/65. Heading G4D. Particles, such as red or white blood cells, in a liquid medium are counted by passing a unit volume through a thin passage in a transparent tube (Figs. 3-6, not shown) a small but variable area of which is illuminated by a collimator 24. The absence of a particle allows the light to strike a dark disc 94 so as not to affect the countor. The presence of a particle, however, diffuses the light which is doublereflected by concave mirrors 86, 92 and activates photo-multiplier 132. A threshold circuit discards pulses of incorrect amplitude. The counter may operate an oscilloscope or penrecorder. Samples may be tested sequentially (Fig. 9, not shown) with automatic washing and removal of bubbles between successive tests.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34776964A | 1964-02-27 | 1964-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE322351B true SE322351B (en) | 1970-04-06 |
Family
ID=23365203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE256165A SE322351B (en) | 1964-02-27 | 1965-02-26 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5128038B1 (en) |
| BE (1) | BE660263A (en) |
| CH (1) | CH463013A (en) |
| DE (1) | DE1698267C3 (en) |
| FR (1) | FR1456473A (en) |
| GB (1) | GB1036045A (en) |
| SE (1) | SE322351B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5799878A (en) * | 1980-12-12 | 1982-06-21 | Sharp Corp | Character broadcast receiver |
-
1965
- 1965-02-18 GB GB701565A patent/GB1036045A/en not_active Expired
- 1965-02-23 FR FR6648A patent/FR1456473A/en not_active Expired
- 1965-02-24 CH CH250665A patent/CH463013A/en unknown
- 1965-02-24 DE DE19651698267 patent/DE1698267C3/en not_active Expired
- 1965-02-25 BE BE660263D patent/BE660263A/xx unknown
- 1965-02-26 JP JP40010899A patent/JPS5128038B1/ja active Pending
- 1965-02-26 SE SE256165A patent/SE322351B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1456473A (en) | 1966-10-28 |
| DE1698267A1 (en) | 1972-01-20 |
| DE1698267C3 (en) | 1974-04-04 |
| DE1698267B2 (en) | 1973-09-06 |
| BE660263A (en) | 1965-08-25 |
| JPS5128038B1 (en) | 1976-08-16 |
| CH463013A (en) | 1968-09-30 |
| GB1036045A (en) | 1966-07-13 |
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