Dual illumination angle goniometric spectrophotometer

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrophotometer

Reexamination Certificate

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Details

C356S446000

Reexamination Certificate

active

11266573

ABSTRACT:
The present disclosure provides for a device, as well as a system and method associated therewith, for, among other things, providing: (i) up to five distinct measurement angles along with an illumination reference channel; (ii) a plurality of illumination sources that provide a focused beam of illumination at specific desired angles of incidence to a sample under target; (iii) a shutter mechanism incorporating a calibration transfer standard; (iv) an internal optical system that is operatively associated with a gimbaled structure suitable to allow vertical and angular conformity to a target sample; and (v) a handheld and operated enclosure incorporating a user interface with a visual display unit complete with interactive navigation means and an activation switch, and a number of surface detecting contact elements operatively associated with the optical system and shutter mechanism.

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Pointer, Michael, Nicholas J Barnes, Peter J Clarke and Michael Shaw, A new goniospectrophotometer for measuring goinio-apparent materials, Sep. 27, 2004, Coloration Technology, vol. 121, No. 2, pp. 96-103.
Partial European Search Report dated Mar. 1, 2006.

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