# The Export of Goods (Control) Order 1994, Paragraph 15: Table—Deposition Techniques—Notes


Dielectric layers are coatings constructed of multi-layers of insulator materials in which the interference properties of a design composed of materials of various refractive indices are used to reflect, transmit or absorb various wavelength bands. Dielectric layers refers to more than four dielectric layers or dielectric/metal composite layers.

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Source: https://www.legislation.gov.uk/uksi/1994/1191/schedule/1/paragraph/15 (the official version)
Page: https://openlegislation.uk/export-of-goods-control-order-1994/schedule-1/paragraph-15
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.