A skin erythema meter

Harri Kopola, Arto Lahti, Risto Myllylä, Matti Hannuksela

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

The skin erythema meter is a fibre-optic, dual wavelength reflectance meter which measures the reflectance of the skin on two wavelengths, one the blood/haemoglobin absorption band (555 nm) and another a reference (660 nm). The instrument consists of a fibre-optic sensor head, a microprocessor-based control and analysis unit and a plotter, and it presents the relation between the measured reflectance results in terms of a reflectance index (R(555nm):R(660nm)). The measurement cycle, including printing, takes 5 seconds. Stability tests on the erythema meter (constant distance, reference object) showed the standard deviation of the reflectance index to be +/- 0.1%, while that in repeatability tests was <+1- 0.5% for skin and <+1- 0.2% for paper with hand-held positioning and repetition. The dynamic change in the reflectance index was about 30% with strong irritation. Results of various irritation test series on human skin are also presented. Finally, the performance and applicability of the skin erythema meter with respect to allergy test procedures, irritancy testing and measurement of UV-induced erythema are discussed.
Original languageEnglish
Title of host publicationOptical Fibers in Medicine V
EditorsAbraham Katzir
PublisherInternational Society for Optics and Photonics SPIE
Pages345-352
DOIs
Publication statusPublished - 1990
MoE publication typeA4 Article in a conference publication
EventOE/LASE '90 - Los Angeles, United States
Duration: 14 Jan 199014 Jan 1990

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume1201

Conference

ConferenceOE/LASE '90
CountryUnited States
CityLos Angeles
Period14/01/9014/01/90

Fingerprint

reflectance
irritation
fiber optics
plotters
stability tests
hemoglobin
microprocessors
wavelengths
printing
positioning
blood
standard deviation
repetition
absorption spectra
cycles
sensors

Cite this

Kopola, H., Lahti, A., Myllylä, R., & Hannuksela, M. (1990). A skin erythema meter. In A. Katzir (Ed.), Optical Fibers in Medicine V (pp. 345-352). International Society for Optics and Photonics SPIE. Proceedings of SPIE, Vol.. 1201 https://doi.org/10.1117/12.17557
Kopola, Harri ; Lahti, Arto ; Myllylä, Risto ; Hannuksela, Matti. / A skin erythema meter. Optical Fibers in Medicine V. editor / Abraham Katzir. International Society for Optics and Photonics SPIE, 1990. pp. 345-352 (Proceedings of SPIE, Vol. 1201).
@inproceedings{de063961af6249dbaff4157cd1aca500,
title = "A skin erythema meter",
abstract = "The skin erythema meter is a fibre-optic, dual wavelength reflectance meter which measures the reflectance of the skin on two wavelengths, one the blood/haemoglobin absorption band (555 nm) and another a reference (660 nm). The instrument consists of a fibre-optic sensor head, a microprocessor-based control and analysis unit and a plotter, and it presents the relation between the measured reflectance results in terms of a reflectance index (R(555nm):R(660nm)). The measurement cycle, including printing, takes 5 seconds. Stability tests on the erythema meter (constant distance, reference object) showed the standard deviation of the reflectance index to be +/- 0.1{\%}, while that in repeatability tests was <+1- 0.5{\%} for skin and <+1- 0.2{\%} for paper with hand-held positioning and repetition. The dynamic change in the reflectance index was about 30{\%} with strong irritation. Results of various irritation test series on human skin are also presented. Finally, the performance and applicability of the skin erythema meter with respect to allergy test procedures, irritancy testing and measurement of UV-induced erythema are discussed.",
author = "Harri Kopola and Arto Lahti and Risto Myllyl{\"a} and Matti Hannuksela",
note = "ELE",
year = "1990",
doi = "10.1117/12.17557",
language = "English",
series = "Proceedings of SPIE",
publisher = "International Society for Optics and Photonics SPIE",
pages = "345--352",
editor = "Abraham Katzir",
booktitle = "Optical Fibers in Medicine V",
address = "United States",

}

Kopola, H, Lahti, A, Myllylä, R & Hannuksela, M 1990, A skin erythema meter. in A Katzir (ed.), Optical Fibers in Medicine V. International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 1201, pp. 345-352, OE/LASE '90, Los Angeles, United States, 14/01/90. https://doi.org/10.1117/12.17557

A skin erythema meter. / Kopola, Harri; Lahti, Arto; Myllylä, Risto; Hannuksela, Matti.

Optical Fibers in Medicine V. ed. / Abraham Katzir. International Society for Optics and Photonics SPIE, 1990. p. 345-352 (Proceedings of SPIE, Vol. 1201).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - A skin erythema meter

AU - Kopola, Harri

AU - Lahti, Arto

AU - Myllylä, Risto

AU - Hannuksela, Matti

N1 - ELE

PY - 1990

Y1 - 1990

N2 - The skin erythema meter is a fibre-optic, dual wavelength reflectance meter which measures the reflectance of the skin on two wavelengths, one the blood/haemoglobin absorption band (555 nm) and another a reference (660 nm). The instrument consists of a fibre-optic sensor head, a microprocessor-based control and analysis unit and a plotter, and it presents the relation between the measured reflectance results in terms of a reflectance index (R(555nm):R(660nm)). The measurement cycle, including printing, takes 5 seconds. Stability tests on the erythema meter (constant distance, reference object) showed the standard deviation of the reflectance index to be +/- 0.1%, while that in repeatability tests was <+1- 0.5% for skin and <+1- 0.2% for paper with hand-held positioning and repetition. The dynamic change in the reflectance index was about 30% with strong irritation. Results of various irritation test series on human skin are also presented. Finally, the performance and applicability of the skin erythema meter with respect to allergy test procedures, irritancy testing and measurement of UV-induced erythema are discussed.

AB - The skin erythema meter is a fibre-optic, dual wavelength reflectance meter which measures the reflectance of the skin on two wavelengths, one the blood/haemoglobin absorption band (555 nm) and another a reference (660 nm). The instrument consists of a fibre-optic sensor head, a microprocessor-based control and analysis unit and a plotter, and it presents the relation between the measured reflectance results in terms of a reflectance index (R(555nm):R(660nm)). The measurement cycle, including printing, takes 5 seconds. Stability tests on the erythema meter (constant distance, reference object) showed the standard deviation of the reflectance index to be +/- 0.1%, while that in repeatability tests was <+1- 0.5% for skin and <+1- 0.2% for paper with hand-held positioning and repetition. The dynamic change in the reflectance index was about 30% with strong irritation. Results of various irritation test series on human skin are also presented. Finally, the performance and applicability of the skin erythema meter with respect to allergy test procedures, irritancy testing and measurement of UV-induced erythema are discussed.

U2 - 10.1117/12.17557

DO - 10.1117/12.17557

M3 - Conference article in proceedings

T3 - Proceedings of SPIE

SP - 345

EP - 352

BT - Optical Fibers in Medicine V

A2 - Katzir, Abraham

PB - International Society for Optics and Photonics SPIE

ER -

Kopola H, Lahti A, Myllylä R, Hannuksela M. A skin erythema meter. In Katzir A, editor, Optical Fibers in Medicine V. International Society for Optics and Photonics SPIE. 1990. p. 345-352. (Proceedings of SPIE, Vol. 1201). https://doi.org/10.1117/12.17557