EP0104661A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Scattering cells
Assignee: Research Foundation of the State University of New York
•
Filing: 1983-09-28
•
Granted: —
•
Expires: 2003-09-28
Abstract
Abstract A scattering cell can contain a sample whose scattering properties upon irradiation are measurable by a detector. The cell includes a central body having an input and output side spanned by a sample cavity. The cell also has an input window bordering the sample cavity on the input side. Also included is a prismatic output window bordering the sample cavity on the output side. This output window is operable to refract its incident radiation and vary the angle between its incident and transmitted radiation as a function of its angle of incidence.
Inventors
- 👤 Benjamin Chu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/17; G01N21/47; G01N21/49; G01N21/51
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
83 words
A scattering cell for containing a sample whose scattering properties upon irradiation are measured by a detector, comprising: a central body having an input and output side spanned by a sample cavity; an input window bordering said sample cavity on said input side; a prismatic output window bordering said sample cavity on said output side, said output window being operable to refract its incident radiation and vary the angle between its incident and transmitted radiation as a function of its angle of incidence.
Claim 2
Dependent Claim
83 words
A scattering cell for containing a sample whose scattering properties upon irradiation are measured by a detector, comprising: a central body having an input and output side spanned by a sample cavity; an input window bordering said sample cavity on said input side; a prismatic output window bordering said sample cavity on said output side, said output window being operable to refract its incident radiation and vary the angle between its incident and transmitted radiation as a function of its angle of incidence.
Claim 3
Dependent Claim
33 words
A scattering cell according to claim 1 wherein said prismatic output window has contiguous to said body an inner face and an outer face disposed at an acute angle to said inner face.
Claim 4
Dependent Claim
23 words
A scattering cell according to claim 2 wherein said prismatic output window has the shape of a prism with a triangular, transverse cross-section.
Claim 5
Dependent Claim
23 words
A scattering cell according to claim 2 wherein said body has an inlet and outlet communicating with said cavity at spaced positions therein.
Claim 6
Dependent Claim
28 words
A scattering cell according to claim 4 wherein said cavity has an upper and lower concavity, said inlet and outlet communicating with said lower and upper concavity, respectively.
Claim 7
Dependent Claim
40 words
A scattering cell according to claim 5 wherein said cavity is a frustroconical cavity, said upper and lower concavities being located at opposite sides of the base of said frustoconical cavity, the interior surface of said cavity being substantially non-reflective.
Claim 8
Dependent Claim
51 words
A scattering cell according to claim 2 wherein said prismatic output window has a lateral face disposed at an angle to said inner and outer face, said prismatic output window being positioned with respect to said detector to transmit scattered radiation from said cavity through said lateral face to said detector.
Claim 9
Dependent Claim
38 words
A scattering cell according to claim 7 wherein said input window is thick, the thickness of said input window being sized to reduce light internally reflected within said input window and reaching said cavity, below a predetermined magnitude.
Claim 10
Dependent Claim
22 words
A scattering cell according to claim 7 wherein said input window has the shape of a prism with a triangular, transverse cross-section.
Claim 11
Dependent Claim
110 words
A scattering system for irradiating a sample and measuring its scattering properties comprising: a) a scattering cell including a central body having an input and output side spanned by a sample cavity, said cell having an input window and a prismatic output window bordering said cavity on the input and output side, respectively, said output window being operable to refract its incident radiation and vary the angle between its incident and transmitted radiation as a function of its angle of incidence; b) a source of radiation aimed at said input window; and c) detection means for contemporaneously detecting radiation transmitted from said prismatic output window at two different angles.at least.
Claim 12
Dependent Claim
110 words
A scattering system for irradiating a sample and measuring its scattering properties comprising: a) a scattering cell including a central body having an input and output side spanned by a sample cavity, said cell having an input window and a prismatic output window bordering said cavity on the input and output side, respectively, said output window being operable to refract its incident radiation and vary the angle between its incident and transmitted radiation as a function of its angle of incidence; b) a source of radiation aimed at said input window; and c) detection means for contemporaneously detecting radiation transmitted from said prismatic output window at two different angles.at least.
Claim 13
Dependent Claim
18 words
A scattering system according to claim 10 wherein said detection means comprises a pair of spaced radiation detectors.
Claim 14
Dependent Claim
54 words
A scattering system according to claim 10 or 11 wherein said prismatic output window is operable to refract radiation more strongly from a path near a predetermined plane to a given side thereof, said detection means being operable to detect radiation refracted to said given side of said predetermined plane by said prismatic window.
Claim 15
Independent Claim
78 words
A method for measuring the scattering properties of a sample with a sample cell having a prismatic output window for refracting radiation and varying the angle between incident and transmitted radiation of the window as a function of the angle of incidence, comprising the steps of: disposing said sample in said cell against said window; directing radiation through said sample toward said output window; and detecting radiation scattered through said sample and refracted by said prismatic output window.
Claim 16
Independent Claim
78 words
A method for measuring the scattering properties of a sample with a sample cell having a prismatic output window for refracting radiation and varying the angle between incident and transmitted radiation of the window as a function of the angle of incidence, comprising the steps of: disposing said sample in said cell against said window; directing radiation through said sample toward said output window; and detecting radiation scattered through said sample and refracted by said prismatic output window.
Claim 17
Dependent Claim
53 words
A method according to claim 13 wherein said prismatic window is operable to refract incident radiation more strongly from a path near a predetermined plane to a given side thereof, the step of detecting radiation including; detecting a predetermined solid angle of transmitted radiation refracted to said given side of said predetermined plane.
Claim 18
Dependent Claim
19 words
A method according to claim 13 further comprising the step of: urging said sample to flow past said window.
Claim 19
Dependent Claim
34 words
A method according to claim 15 further comprising the step of: discriminating by particle size to allow larger and smaller particles in said sample to flow past said window at different times,on the average.
Claim 20
Dependent Claim
80 words
A method according to claim 16 or 13 wherein said window has an inner face contiguous to said sample, an outer face disposed at an acute angle to said inner face and a lateral face disposed at an angle to said inner and outer face, wherein the step of detecting radiation includes: detecting a predetermined solid angle of refracted radiation transmitted through said outer face; and contemporaneously detecting a given solid angle of refracted radiation transmitted through said lateral face.
Claim 21
Dependent Claim
39 words
A method according to claim 13 further comprising the step of: measuring the amount of refraction caused by the interface of said sample and window to obtain the index of refraction of said sample with respect to said window.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.