Aesthetic laser marking assessment

T. W. Ng, S. C. Yeo

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)


In this paper, the CIE color difference formula was applied to evaluate four types of material surfaces; anodized aluminium, stainless steel, poly-butylene tetra-phthalate (PBT), and phenol formaldehyde, marked using a Nd:YAG laser, and viewed under three common modes of illumination; tungsten, fluorescent and daylight. The color difference values were based on the spectral reflectance readings obtained from a spectrophotometer. Each material exhibited different color difference trends in relation to marking speed for the different modes of illumination. Nevertheless, general comparisons could be made in terms of operational marking speeds and the maximal color difference values for each material.

Original languageEnglish
Pages (from-to)187-191
Number of pages5
JournalOptics and Laser Technology
Issue number3
Publication statusPublished - 2000
Externally publishedYes

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