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  • ASTM
    F2360-08 Standard Test Method for Determining Luminance of a Membrane Switch Backlit with Diffuse Light Source (Redline)
    Edition: 2008
    $55.41
    Unlimited Users per year

Description of ASTM-F2360 2008

ASTM F2360 - 08

Standard Test Method for Determining Luminance of a Membrane Switch Backlit with Diffuse Light Source

Active Standard ASTM F2360 | Developed by Subcommittee: F01.18

Book of Standards Volume: 10.04




ASTM F2360

Significance and Use

Illumination of a switch or of certain features of a switch often has a functional purpose and must meet specification to satisfy the functional requirements of the switch.

Illumination of the switch can be affected by variations in the quality and design of the overlay and its application.

This test method addresses only the optical and visual appearance of the switch and not its electrical function.

This test method is non-destructive.

If this test method is applied to the entire switch assembly, the results can be applied to the whole device. However, it may be sufficient and practical to apply the test either to a subassembly only, or to the illumination layer only, in which case the results apply to that layer only and the net effect on the fully assembled device must be calculated, extrapolated, or otherwise inferred.

1. Scope

1.1 This test method covers procedures for determining the luminance of a backlit membrane switch. As written, it applies to a fully assembled switch. For specific purposes, it can be applied to partially assembled switches with the understanding that the results pertain only to the partial assembly and will be modified as the further assembly proceeds.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


Keywords

backlit; colorimeter; diffuse light; electroluminescent material; light emitting diodes; luminance; membrane switch; photometer; radiometer; video photometer; Diffuse light; Electroluminescence; Luminance; Membrane switches;


ICS Code

ICS Number Code 31.220.20 (Switches)


DOI: 10.1520/F2360-08

ASTM International is a member of CrossRef.

ASTM F2360

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.

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