{"id":379817,"date":"2024-10-20T03:04:08","date_gmt":"2024-10-20T03:04:08","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-152532021\/"},"modified":"2024-10-26T05:31:54","modified_gmt":"2024-10-26T05:31:54","slug":"bs-en-iso-152532021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-152532021\/","title":{"rendered":"BS EN ISO 15253:2021"},"content":{"rendered":"

This document is applicable to optical and electro-optical devices specified by the manufacturer for use by visually impaired persons as low vision aids. This document specifies requirements and test methods for optical and electro-optical devices specified by the manufacturer for use by visually impaired persons as low vision devices.<\/p>\n

Implantable low vision devices are excluded.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
7<\/td>\nForeword <\/td>\n<\/tr>\n
8<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
17<\/td>\n4 Classification
4.1 Optical devices
4.1.1 Distance vision
4.1.2 Near and intermediate vision
4.1.3 Retinal illumination reduction or contrast enhancement
4.2 Electro-optical devices
5 Requirements
5.1 General
5.1.1 Risk assessment and management
5.1.2 Materials
5.1.3 Dimensions and weight <\/td>\n<\/tr>\n
18<\/td>\n5.1.4 Flammability\/Ignitability
5.1.5 Resistance to perspiration
5.1.6 Robustness
5.1.7 Resistance to drop
5.2 Optical devices
5.2.1 Spatial resolution
5.2.2 Equivalent power (applies to optical devices designed for near or intermediate use) <\/td>\n<\/tr>\n
19<\/td>\n5.2.3 Magnification
5.2.4 Exit image distance (applies to stand magnifiers) <\/td>\n<\/tr>\n
20<\/td>\n5.2.5 Entrance pupil diameter (applies to telescopes)
5.2.6 Transmittance
5.2.7 Image relocation
5.3 Electro-optical devices
5.3.1 Display size
5.3.2 Ambient temperatures
5.3.3 Image characteristics <\/td>\n<\/tr>\n
21<\/td>\n5.3.4 Object (XY) table
5.3.5 Electro-optical device working distance
5.3.6 Text to speech system
5.3.7 Electrical requirements
6 Test methods
6.1 General <\/td>\n<\/tr>\n
22<\/td>\n6.2 Optical devices
6.2.1 Spatial resolution test <\/td>\n<\/tr>\n
26<\/td>\n6.2.2 Equivalent power \u2013 Magnifiers
6.2.3 Angular magnification \u2013 Telescopes
6.2.4 Transverse magnification \u2013 Stand magnifiers
6.2.5 Lateral variation of magnification test
6.2.6 Exit image distance \u2013 Stand magnifiers
6.3 Electro-optical devices
6.3.1 Display magnification test
6.3.2 Uniformity of magnification
7 Information to be provided by the manufacturer
7.1 Marking <\/td>\n<\/tr>\n
28<\/td>\n7.2 Instructions for use <\/td>\n<\/tr>\n
29<\/td>\nAnnex A (informative) Determination of lateral variation of magnification <\/td>\n<\/tr>\n
34<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Ophthalmic optics and instruments. Optical and electro-optical devices for enhancing low vision<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":379827,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[177,2641],"product_tag":[],"class_list":{"0":"post-379817","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-11-180-30","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/379817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/379827"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=379817"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=379817"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=379817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}