Ophthalmic optics and instruments. Electro-optical devices for enhancing low vision Ingestion-build-84997

Ophthalmic optics and instruments. Electro-optical devices for enhancing low vision Ingestion-build-849971 Scope This International Standard applies to electro optical devices specified by the manufacturer for use by visually impaired persons, as low vision aids. It specifies electro optical and mechanical requirements and test methods. This International Standard does not cover optical devices for enhancing low vision which are specified in ISO 15253.

Class A : − 65 °C to 260 °C

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1 MPa = 1 N/mm2) are considered gauge pressures

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For reasons of precision