Global Patent Index - EP 0847524 A4

EP 0847524 A4 19991013 - HANDHELD INFRARED SPECTROMETER

Title (en)

HANDHELD INFRARED SPECTROMETER

Title (de)

HANDINFRAROTSPEKTROMETER

Title (fr)

SPECTROMETRE A INFRAROUGES TENU DANS LA MAIN

Publication

EP 0847524 A4 19991013 (EN)

Application

EP 96929884 A 19960830

Priority

  • US 9614128 W 19960830
  • US 304795 P 19950831

Abstract (en)

[origin: WO9708537A1] A handheld device for infrared reflectance measurements of samples (M) for identification of the sample materials is a self-contained portable unit built into a handheld housing (10). The housing (10) includes a window (15) and optics on a bench (100) adjacent the window (15), so that the optics will be aligned with the sample (M) when the device is placed directly against the sample (M). The optics include a broad-band IR light source (110) shining onto an acousto-optic tunable filter (AOTF) (120), which passes narrow-band IR light with a swept frequency; a lens (130) focussing the IR through the window (15) onto the sample (M); and a reflectance detector (140) aligned with the window (15) of the housing (10) to detect reflected light. A computer (202), which may be mounted in the housing (10), compares the detected reflectance spectrum with stored sample data spectra, and identifies the material (M) or the components of the material (M) and their proportions.

IPC 1-7

G01N 21/35

IPC 8 full level

G01J 3/42 (2006.01); G01J 3/02 (2006.01); G01J 3/10 (2006.01); G01J 3/12 (2006.01); G01N 21/35 (2006.01)

CPC (source: EP)

G01J 3/02 (2013.01); G01J 3/0272 (2013.01); G01J 3/0289 (2013.01); G01J 3/0291 (2013.01); G01J 3/108 (2013.01); G01J 3/1256 (2013.01); G01N 21/3563 (2013.01)

Citation (search report)

  • [DYA] US 4883963 A 19891128 - KEMENY GABOR J [US], et al
  • [Y] US 5319437 A 19940607 - VAN AKEN HAROLD [US], et al
  • [PA] WO 9702481 A1 19970123 - DSM NV [NL], et al
  • [A] A.GUILLERMO, T.CZUPPON, G.PATONAY: "Long-wavelength fluorescence probes-chemistry and semiconductor lasers: A difficult marriage", PROCEEDINGS OF THE SPIE, vol. 2138, 27 January 1994 (1994-01-27) - 28 January 1994 (1994-01-28), Los Angeles, pages 228 - 240, XP002112427
  • See references of WO 9708537A1

Designated contracting state (EPC)

AT BE CH DE FR GB IE IT LI MC NL PT SE

DOCDB simple family (publication)

WO 9708537 A1 19970306; EP 0847524 A1 19980617; EP 0847524 A4 19991013; JP 3181596 B2 20010703; JP H10512678 A 19981202

DOCDB simple family (application)

US 9614128 W 19960830; EP 96929884 A 19960830; JP 51064197 A 19960830