Report/Guide

Clarke, P J (2006) Regular transmittance measurements. Measurement Good Practice Guide. 97

Clarke, P J (2006) Surface colour measurements. Measurement Good Practice Guide. 96

Pointer, M R; Barnes, N J*; Clarke, P J; Shaw, M J (2005) A new goniospectrophotometer for measuring gonio-apparent materials. NPL Report. DQL-OR 010

Hanson, A R; Pointer, M R; Clarke, P J (2004) The uncertainty of surface colour measurements made with commercially-available diode-array instrumentation and recommended calibration protocols. NPL Report. DQL-OR 005

Clarke, P J (1998) COOMET international comparison of relative reflectance measurements. Report on NPL measurements for PTB, Friedrichshagen, Berlin. NPL Report. COEM 23

Verrill, J F; Clarke, P J; O'Halloran, J (1997) Study of improved methods for Absolute Colorimetry. Fifth report - study of colorimetric errors on industrial instruments. NPL Report. COEM 2

Verrill, J F; Clarke, P J; O'Halloran, J; Knee, P C (1995) NPL Spectrophotometry and Colorimetry club. Intercomparison of colour measurements. NPL Report. QU 113

Article

Clarke, P J (2003) The NPL correction kit for enhanced and traceable reflectance measurement. Proc. SPIE - Int. Soc. Opt. Eng., 4826. pp. 123-128.

Shaw, M J; Clarke, P J; Burnitt, T A* (2003) The design of the new NPL reference spectrofluorimeter. Proc. SPIE - Int. Soc. Opt. Eng., 5192 (1). pp. 30-35.

Clarke, P J; Hanson, A R (2002) Determination and correction of errors in surface colour measurement. Proc. SPIE - Int. Soc. Opt. Eng., 4421. pp. 803-807.

Hanson, A R; Clarke, P J (2002) Determination of uncertainty in spectrophotometric surface colour measurements. Proc. SPIE - Int. Soc. Opt. Eng., 4421. pp. 808-811.

Clarke, P J; Hanson, A R (2002) Harmonization of scales of color measurement. Proc. SPIE - Int. Soc. Opt. Eng., 4421. pp. 794-797.

Clarke, P J; Hanson, A R; Verrill, J F (1999) Determination of colorimetric uncertainties in the spectrophotometric measurement of colour. Anal. Chim. Acta, 380. pp. 277-284.

Conference or Workshop Item

Taylor, J A F; Clarke, P J; Hanson, A R; Knee, P C; Verrill, J F (1994) An investigation into the human visual system in the mesopic region using both a classical optical instrument and a visual display unit. In: Symposium on Advances in Photometry, December 1994, Vienna, Austria.