ISO/TR 11797:2024

International Standard   Current Edition · Approved on 06 November 2024

Ophthalmic optics – Spectacle lenses – Power and prism measurements

ISO/TR 11797:2024 Files

English 50 Pages
Current Edition
72.59 BHD

ISO/TR 11797:2024 Scope

This document describes the methods currently used in applying tolerances to the focal powers of spectacle lenses and methods that can be considered for adoption in the future; it also describes methods of measuring the prism imbalance (relative prism error) between the lenses of a mounted pair. The results of a 2014 survey of manufacturing capability for lens power and a 2018 international web survey are discussed, as are possible new methods for applying tolerances to the focal power of spectacle lenses.

Best Sellers

GSO 150-2:2013
 
Gulf Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013 
Bahraini Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates
BH GSO 2055-1:2016
GSO 2055-1:2015 
Bahraini Technical Regulation
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
 
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements

Recently Published

ISO/ASTM TS 52949:2025
 
International Standard
Additive manufacturing of metals — Qualification principles — Installation, operation and performance (IQ/OQ/PQ) of PBF-EB equipment
ISO/TS 7815-2:2025
 
International Standard
Intelligent transport systems — Telematics applications for regulated commercial freight vehicles (TARV) using ITS stations — Part 2: Specification of the secure vehicle interface
ISO 3506-4:2025
 
International Standard
Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 4: Tapping screws with specified grades and hardness classes
ISO 5700:2025
 
International Standard
Tractors for agriculture and forestry — Roll-over protective structures — Static test method and acceptance conditions