FR2247191A2 - Blood particle counting process - light diffracted by two samples produces electrical signals - Google Patents

Blood particle counting process - light diffracted by two samples produces electrical signals

Info

Publication number
FR2247191A2
FR2247191A2 FR7336915A FR7336915A FR2247191A2 FR 2247191 A2 FR2247191 A2 FR 2247191A2 FR 7336915 A FR7336915 A FR 7336915A FR 7336915 A FR7336915 A FR 7336915A FR 2247191 A2 FR2247191 A2 FR 2247191A2
Authority
FR
France
Prior art keywords
electrical signals
light
counting process
light diffracted
particle counting
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.)
Granted
Application number
FR7336915A
Other languages
French (fr)
Other versions
FR2247191B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MERIC JEAN PAUL FR
Original Assignee
MERIC JEAN PAUL FR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MERIC JEAN PAUL FR filed Critical MERIC JEAN PAUL FR
Priority to FR7336915A priority Critical patent/FR2247191A2/en
Publication of FR2247191A2 publication Critical patent/FR2247191A2/en
Application granted granted Critical
Publication of FR2247191B2 publication Critical patent/FR2247191B2/fr
Granted legal-status Critical Current

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
    • G01N21/17—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
    • G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

Two blood samples, in one of which the red corpuscles have been haemolyzed, while in the other they have been made spherical, are placed in the path of a light beam emanating from a convergent optical system supplied by a laser so as to obtain, in the focal plane of the system, at least two photosensitive zones receiving the light beams diffracted by the particles. The agles in radians formed between the diffracted beams and the original one are determined by formulae taking into account the wavelength of the light used and the mean diameters of the particles to be analysed. The light received by the zones is transformed into electrical signals used in units indicating the analysis results.
FR7336915A 1973-10-16 1973-10-16 Blood particle counting process - light diffracted by two samples produces electrical signals Granted FR2247191A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7336915A FR2247191A2 (en) 1973-10-16 1973-10-16 Blood particle counting process - light diffracted by two samples produces electrical signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7336915A FR2247191A2 (en) 1973-10-16 1973-10-16 Blood particle counting process - light diffracted by two samples produces electrical signals

Publications (2)

Publication Number Publication Date
FR2247191A2 true FR2247191A2 (en) 1975-05-09
FR2247191B2 FR2247191B2 (en) 1978-11-03

Family

ID=9126469

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336915A Granted FR2247191A2 (en) 1973-10-16 1973-10-16 Blood particle counting process - light diffracted by two samples produces electrical signals

Country Status (1)

Country Link
FR (1) FR2247191A2 (en)

Also Published As

Publication number Publication date
FR2247191B2 (en) 1978-11-03

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Legal Events

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TP Transmission of property