{"id":464877,"date":"2024-10-20T10:37:26","date_gmt":"2024-10-20T10:37:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iso-ts-68382024\/"},"modified":"2024-10-26T19:35:38","modified_gmt":"2024-10-26T19:35:38","slug":"bsi-pd-iso-ts-68382024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iso-ts-68382024\/","title":{"rendered":"BSI PD ISO\/TS 6838:2024"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\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
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
8<\/td>\n4 Tolerances
4.1 Tolerance limits
4.2 Conditioning of contact lenses prior to testing <\/td>\n<\/tr>\n
9<\/td>\n4.3 Tolerances for rigid and soft contact lenses
5 Methods of measurement for multifocal add power
5.1 General
5.2 Wavefront sensor
5.2.1 Wavefront instrument specification
5.2.2 Wavefront calibration <\/td>\n<\/tr>\n
10<\/td>\n5.2.3 Wavefront method of measurement
5.2.4 Power profile examples <\/td>\n<\/tr>\n
12<\/td>\n5.2.5 Bifocal contact lens <\/td>\n<\/tr>\n
13<\/td>\n5.3 Focimeter
5.3.1 Principle <\/td>\n<\/tr>\n
14<\/td>\n5.3.2 Focimeter specification <\/td>\n<\/tr>\n
15<\/td>\n5.3.3 Focimeter calibration
5.3.4 Measurement of most plus and least plus power <\/td>\n<\/tr>\n
16<\/td>\n6 Ring test results
6.1 Ring test objectives
6.2 Ring test background <\/td>\n<\/tr>\n
17<\/td>\n6.3 Ring test executive summary
6.3.1 WFS calibration verification using (13) certified low-power glass lenses <\/td>\n<\/tr>\n
18<\/td>\n6.3.2 Focimeter calibration verification using (10) standard B+L calibration lenses
6.3.3 WFS gauge repeatability and reproducibility (GR&R) using PV2 MF HA lenses
6.3.4 Focimeter gauge repeatability and reproducibility (GR&R) using PV2 MF HA lenses
6.4 Calibration lens accuracy requirements <\/td>\n<\/tr>\n
19<\/td>\n6.4.1 Focimeters
6.4.2 Wavefront sensor low-power lenses <\/td>\n<\/tr>\n
21<\/td>\n7 Discussion
7.1 Ring test conclusions
7.2 Ring test recommendations
7.3 Multifocal add-power measurement challenges
7.3.1 Immersed wavefront sensor measurement challenges <\/td>\n<\/tr>\n
24<\/td>\n7.3.2 In-air wavefront sensor measurement challenges
7.4 Questions to answer before the TS moves to become a standard <\/td>\n<\/tr>\n
26<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Ophthalmic optics\u00a0\u2014 Contact lenses\u00a0\u2014 Tolerances and methods for measurement of multifocal contact lens addition power<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":464886,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[145,2641],"product_tag":[],"class_list":{"0":"post-464877","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-11-040-70","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\/464877","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\/464886"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=464877"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=464877"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=464877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}