This part of ISO 25297 specifies the information requirements for optical systems and parts, and provides an<\/p>\n
information model to support the processes of optical design, optical evaluation and analysis for these optical<\/p>\n
systems and parts when using computers with CAD and CAE.<\/p>\n
NOTE Generally, an optical system means an optical unit as an optical product, which performs optical functions,<\/p>\n
and is composed of optical elements and the barrels in which these elements are mounted. In this part of ISO 25297, an<\/p>\n
optical system is a collection of optical parts and optical assemblies, e.g. the viewfinder system or the taking lens system<\/p>\n
of a leaf shutter camera.<\/p>\n
This information model adds the data peculiar to optical design specification based on STEP to ISO 10303<\/p>\n
(all parts). The additional information is product specification information, optical design information, optical<\/p>\n
evaluation information and analysis information.<\/p>\n
This part of ISO 25297 is generically called the Neutral Optical Data Interchange Format (NODIF).<\/p>\n
The following are within the scope:<\/p>\n
\u2014 information on product specification, optical design, optical evaluation and analysis;<\/p>\n
\u2014 optical systems and parts in imaging systems, such as cameras and copiers, viewing systems for<\/p>\n
telescopes and microscopes and the other optical systems, such as projectors and pick-up lenses;<\/p>\n
\u2014 multiple-configuration optical systems, including zoom lenses and inner focusing systems;<\/p>\n
\u2014 optical path definition, including ray-path sequence and optical surface arrangement;<\/p>\n
\u2014 optical assemblies, including cemented parts and dynamic parts;<\/p>\n
\u2014 mathematical description of the optical surface form;<\/p>\n
\u2014 description of diffractive surfaces;<\/p>\n
\u2014 machining process designation, such as polishing, molding or replicating;<\/p>\n
\u2014 optical material specifications, such as material names, lot numbers and measured refractive indices;<\/p>\n
\u2014 optical tolerances for the shape and material property of each optical part;<\/p>\n
\u2014 assembly tolerances, such as separation, parallelism, displacement and tilt.<\/p>\n
\u2014 effective diameters, coatings and protective surface treatment;<\/p>\n
\u2014 paraxial evaluation, such as focal length, back focal length, principal points and f-number;<\/p>\n
\u2014 ray-tracing evaluation, such as geometrical ray-tracing results (i.e. ray directions and intersection points<\/p>\n
on each surface and optical path lengths), aberrations and wavefront aberration;<\/p>\n
\u2014 OTF evaluation based on geometrical and\/or physical optics;<\/p>\n
\u2014 illuminance distribution on a detection surface or a projection surface;<\/p>\n
\u2014 spectral characteristics;<\/p>\n
\u2014 ghost image evaluation;<\/p>\n
\u2014 thermal analysis accompanying optical surface deformation and material property value change;<\/p>\n
\u2014 stress analysis accompanying optical surface deformation and material property value change;<\/p>\n
\u2014 veiling glare and surface imperfections.<\/p>\n
The following are outside the scope of this part of ISO 25297:<\/p>\n
\u2014 mechanical design, electronic design and embedded software design;<\/p>\n
\u2014 optical systems in which the optical path is changeable, e.g. beam splitters or variable magnification converters;<\/p>\n
\u2014 tolerances for mechanical parts;<\/p>\n
\u2014 parts with a diameter less than 10 times the wavelength of light;<\/p>\n
\u2014 parts made from materials whose dielectric constant, s, electric permittivity, e, and magnetic permittivity,<\/p>\n
\u00b5<\/i>, are uninfluenced by interaction between the materials and the light;<\/p>\n
\u2014 graphical documents resulting from design, evaluation and analysis of products;<\/p>\n
\u2014 optical wave guide for optical communications;<\/p>\n
\u2014 product planning information concerning market research and customer analysis;<\/p>\n
\u2014 product definition and configuration control information irrelevant to design, evaluation and analysis;<\/p>\n
\u2014 analysis information, except thermal and stress analysis, e.g. vibration analysis;<\/p>\n
\u2014 information on trial production, production process including production planning and production control,<\/p>\n
and processes after production, such as shipment and repair;<\/p>\n
\u2014 ophthalmic optics.<\/p>\n","protected":false},"excerpt":{"rendered":"
Optics and photonics \u2014 Electronic exchange of optical data \u2014 Part 1: NODIF information model<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 2012-03<\/td>\n 84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":610219,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[710,2634],"product_tag":[],"class_list":{"0":"post-610211","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-37-020","7":"product_cat-iso","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\/610211","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\/610219"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=610211"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=610211"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=610211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}