Diffractive optical element-based glossmeter for the on-line measurement of normal reflectance on a printed porous coated paper

A. Oksman, K. Kuivalainen, C.-M. Tåg, Mikko Juuti, Rauno Mattila, Eero Hietala, P. A. C. Gane, K.-E. Peiponen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Gloss of a product, such as print gloss, is mainly inspected with conventional white light glossmeters both at laboratory or production facilities. However, problems occur in conventional gloss measurement when the inspected surface is vertically moved in the plane of incidence and reflection or when the measurement area is small or curved. For a partial solution to these problems, we have previously introduced diffractive optical element-based glossmeters (DOGs) for the gloss inspection in laboratories and off-line use. We present a new construction of DOG, termed μDOG 1D, for the one-dimensional on-line print gloss measurement, in the form of the reflectance determination normal to the surface. The function of the glossmeter is demonstrated by laboratory tests and on-line measurements at a heat-set web offset printing machine. It is shown that gloss (i.e., normal reflectance) and minute gloss variation of papers and prints can be measured at the printing line using the glossmeter. This glossmeter is expected to be useful in real-time monitoring of the gloss and surface-specific absorption not only in the printing industry but also in inspection of products in other industrial sectors, such as metal finishing, laminating, paper, and construction materials manufacturing.
Original languageEnglish
Article number043606
Number of pages9
JournalOptical Engineering
Volume50
Issue number4
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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Diffractive optical elements
Gloss measurement
reflectance
Printing
printing
Inspection
Metal finishing
Offset printing
Laminating
inspection
metal finishing
products
Monitoring
sectors
manufacturing
incidence
industries
Industry
heat

Cite this

Oksman, A. ; Kuivalainen, K. ; Tåg, C.-M. ; Juuti, Mikko ; Mattila, Rauno ; Hietala, Eero ; Gane, P. A. C. ; Peiponen, K.-E. / Diffractive optical element-based glossmeter for the on-line measurement of normal reflectance on a printed porous coated paper. In: Optical Engineering. 2011 ; Vol. 50, No. 4.
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abstract = "Gloss of a product, such as print gloss, is mainly inspected with conventional white light glossmeters both at laboratory or production facilities. However, problems occur in conventional gloss measurement when the inspected surface is vertically moved in the plane of incidence and reflection or when the measurement area is small or curved. For a partial solution to these problems, we have previously introduced diffractive optical element-based glossmeters (DOGs) for the gloss inspection in laboratories and off-line use. We present a new construction of DOG, termed μDOG 1D, for the one-dimensional on-line print gloss measurement, in the form of the reflectance determination normal to the surface. The function of the glossmeter is demonstrated by laboratory tests and on-line measurements at a heat-set web offset printing machine. It is shown that gloss (i.e., normal reflectance) and minute gloss variation of papers and prints can be measured at the printing line using the glossmeter. This glossmeter is expected to be useful in real-time monitoring of the gloss and surface-specific absorption not only in the printing industry but also in inspection of products in other industrial sectors, such as metal finishing, laminating, paper, and construction materials manufacturing.",
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Diffractive optical element-based glossmeter for the on-line measurement of normal reflectance on a printed porous coated paper. / Oksman, A.; Kuivalainen, K.; Tåg, C.-M.; Juuti, Mikko; Mattila, Rauno; Hietala, Eero; Gane, P. A. C.; Peiponen, K.-E.

In: Optical Engineering, Vol. 50, No. 4, 043606, 2011.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Diffractive optical element-based glossmeter for the on-line measurement of normal reflectance on a printed porous coated paper

AU - Oksman, A.

AU - Kuivalainen, K.

AU - Tåg, C.-M.

AU - Juuti, Mikko

AU - Mattila, Rauno

AU - Hietala, Eero

AU - Gane, P. A. C.

AU - Peiponen, K.-E.

PY - 2011

Y1 - 2011

N2 - Gloss of a product, such as print gloss, is mainly inspected with conventional white light glossmeters both at laboratory or production facilities. However, problems occur in conventional gloss measurement when the inspected surface is vertically moved in the plane of incidence and reflection or when the measurement area is small or curved. For a partial solution to these problems, we have previously introduced diffractive optical element-based glossmeters (DOGs) for the gloss inspection in laboratories and off-line use. We present a new construction of DOG, termed μDOG 1D, for the one-dimensional on-line print gloss measurement, in the form of the reflectance determination normal to the surface. The function of the glossmeter is demonstrated by laboratory tests and on-line measurements at a heat-set web offset printing machine. It is shown that gloss (i.e., normal reflectance) and minute gloss variation of papers and prints can be measured at the printing line using the glossmeter. This glossmeter is expected to be useful in real-time monitoring of the gloss and surface-specific absorption not only in the printing industry but also in inspection of products in other industrial sectors, such as metal finishing, laminating, paper, and construction materials manufacturing.

AB - Gloss of a product, such as print gloss, is mainly inspected with conventional white light glossmeters both at laboratory or production facilities. However, problems occur in conventional gloss measurement when the inspected surface is vertically moved in the plane of incidence and reflection or when the measurement area is small or curved. For a partial solution to these problems, we have previously introduced diffractive optical element-based glossmeters (DOGs) for the gloss inspection in laboratories and off-line use. We present a new construction of DOG, termed μDOG 1D, for the one-dimensional on-line print gloss measurement, in the form of the reflectance determination normal to the surface. The function of the glossmeter is demonstrated by laboratory tests and on-line measurements at a heat-set web offset printing machine. It is shown that gloss (i.e., normal reflectance) and minute gloss variation of papers and prints can be measured at the printing line using the glossmeter. This glossmeter is expected to be useful in real-time monitoring of the gloss and surface-specific absorption not only in the printing industry but also in inspection of products in other industrial sectors, such as metal finishing, laminating, paper, and construction materials manufacturing.

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