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
73.52 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/IEC 23090-31:2025
 
International Standard
Information technology — Coded representation of immersive media — Part 31: Haptics coding
ISO/CIE 8995-1:2025
 
International Standard
Light and lighting — Lighting of work places — Part 1: Indoor
ISO 6579-4:2025
 
International Standard
Microbiology of the food chain — Horizontal method for the detection, enumeration and serotyping of Salmonella — Part 4: Identification of monophasic Salmonella Typhimurium (1,4,[5],12:i:-) by polymerase chain reaction (PCR)
ISO 9466:2025
 
International Standard
Railway applications — Coating of passenger rail vehicles