| Nosaukums | <p>This part of ISO 25297 specifies the information requirements for optical systems and parts, and provides an</p>
<p>information model to support the processes of optical design, optical evaluation and analysis for these optical</p>
<p>systems and parts when using computers with CAD and CAE.</p>
<p>NOTE Generally, an optical system means an optical unit as an optical product, which performs optical functions,</p>
<p>and is composed of optical elements and the barrels in which these elements are mounted. In this part of ISO 25297, an</p>
<p>optical system is a collection of optical parts and optical assemblies, e.g. the viewfinder system or the taking lens system</p>
<p>of a leaf shutter camera.</p>
<p>This information model adds the data peculiar to optical design specification based on STEP to ISO 10303</p>
<p>(all parts). The additional information is product specification information, optical design information, optical</p>
<p>evaluation information and analysis information.</p>
<p>This part of ISO 25297 is generically called the Neutral Optical Data Interchange Format (NODIF).</p>
<p>The following are within the scope:</p>
<p>— information on product specification, optical design, optical evaluation and analysis;</p>
<p>— optical systems and parts in imaging systems, such as cameras and copiers, viewing systems for</p>
<p> telescopes and microscopes and the other optical systems, such as projectors and pick-up lenses;</p>
<p>— multiple-configuration optical systems, including zoom lenses and inner focusing systems;</p>
<p>— optical path definition, including ray-path sequence and optical surface arrangement;</p>
<p>— optical assemblies, including cemented parts and dynamic parts;</p>
<p>— mathematical description of the optical surface form;</p>
<p>— description of diffractive surfaces;</p>
<p>— machining process designation, such as polishing, molding or replicating;</p>
<p>— optical material specifications, such as material names, lot numbers and measured refractive indices;</p>
<p>— optical tolerances for the shape and material property of each optical part;</p>
<p>— assembly tolerances, such as separation, parallelism, displacement and tilt.</p>
<p>— effective diameters, coatings and protective surface treatment;</p>
<p>— paraxial evaluation, such as focal length, back focal length, principal points and f-number;</p>
<p>— ray-tracing evaluation, such as geometrical ray-tracing results (i.e. ray directions and intersection points</p>
<p> on each surface and optical path lengths), aberrations and wavefront aberration;</p>
<p>— OTF evaluation based on geometrical and/or physical optics;</p>
<p>— illuminance distribution on a detection surface or a projection surface;</p>
<p>— spectral characteristics;</p>
<p>— ghost image evaluation;</p>
<p>— thermal analysis accompanying optical surface deformation and material property value change;</p>
<p>— stress analysis accompanying optical surface deformation and material property value change;</p>
<p>— veiling glare and surface imperfections.</p>
<p>The following are outside the scope of this part of ISO 25297:</p>
<p>— mechanical design, electronic design and embedded software design;</p>
<p>— optical systems in which the optical path is changeable, e.g. beam splitters or variable magnification converters;</p>
<p>— tolerances for mechanical parts;</p>
<p>— parts with a diameter less than 10 times the wavelength of light;</p>
<p>— parts made from materials whose dielectric constant, σ, electric permittivity, ε, and magnetic permittivity,</p>
<p><i> μ</i>, are uninfluenced by interaction between the materials and the light;</p>
<p>— graphical documents resulting from design, evaluation and analysis of products;</p>
<p>— optical wave guide for optical communications;</p>
<p>— product planning information concerning market research and customer analysis;</p>
<p>— product definition and configuration control information irrelevant to design, evaluation and analysis;</p>
<p>— analysis information, except thermal and stress analysis, e.g. vibration analysis;</p>
<p>— information on trial production, production process including production planning and production control,</p>
<p> and processes after production, such as shipment and repair;</p>
<p>— ophthalmic optics.</p> |
|---|
| Darbības sfēra | <p>This part of ISO 25297 specifies the information requirements for optical systems and parts, and provides an</p>
<p>information model to support the processes of optical design, optical evaluation and analysis for these optical</p>
<p>systems and parts when using computers with CAD and CAE.</p>
<p>NOTE Generally, an optical system means an optical unit as an optical product, which performs optical functions,</p>
<p>and is composed of optical elements and the barrels in which these elements are mounted. In this part of ISO 25297, an</p>
<p>optical system is a collection of optical parts and optical assemblies, e.g. the viewfinder system or the taking lens system</p>
<p>of a leaf shutter camera.</p>
<p>This information model adds the data peculiar to optical design specification based on STEP to ISO 10303</p>
<p>(all parts). The additional information is product specification information, optical design information, optical</p>
<p>evaluation information and analysis information.</p>
<p>This part of ISO 25297 is generically called the Neutral Optical Data Interchange Format (NODIF).</p>
<p>The following are within the scope:</p>
<p>— information on product specification, optical design, optical evaluation and analysis;</p>
<p>— optical systems and parts in imaging systems, such as cameras and copiers, viewing systems for</p>
<p> telescopes and microscopes and the other optical systems, such as projectors and pick-up lenses;</p>
<p>— multiple-configuration optical systems, including zoom lenses and inner focusing systems;</p>
<p>— optical path definition, including ray-path sequence and optical surface arrangement;</p>
<p>— optical assemblies, including cemented parts and dynamic parts;</p>
<p>— mathematical description of the optical surface form;</p>
<p>— description of diffractive surfaces;</p>
<p>— machining process designation, such as polishing, molding or replicating;</p>
<p>— optical material specifications, such as material names, lot numbers and measured refractive indices;</p>
<p>— optical tolerances for the shape and material property of each optical part;</p>
<p>— assembly tolerances, such as separation, parallelism, displacement and tilt.</p>
<p>— effective diameters, coatings and protective surface treatment;</p>
<p>— paraxial evaluation, such as focal length, back focal length, principal points and f-number;</p>
<p>— ray-tracing evaluation, such as geometrical ray-tracing results (i.e. ray directions and intersection points</p>
<p> on each surface and optical path lengths), aberrations and wavefront aberration;</p>
<p>— OTF evaluation based on geometrical and/or physical optics;</p>
<p>— illuminance distribution on a detection surface or a projection surface;</p>
<p>— spectral characteristics;</p>
<p>— ghost image evaluation;</p>
<p>— thermal analysis accompanying optical surface deformation and material property value change;</p>
<p>— stress analysis accompanying optical surface deformation and material property value change;</p>
<p>— veiling glare and surface imperfections.</p>
<p>The following are outside the scope of this part of ISO 25297:</p>
<p>— mechanical design, electronic design and embedded software design;</p>
<p>— optical systems in which the optical path is changeable, e.g. beam splitters or variable magnification converters;</p>
<p>— tolerances for mechanical parts;</p>
<p>— parts with a diameter less than 10 times the wavelength of light;</p>
<p>— parts made from materials whose dielectric constant, σ, electric permittivity, ε, and magnetic permittivity,</p>
<p><i> μ</i>, are uninfluenced by interaction between the materials and the light;</p>
<p>— graphical documents resulting from design, evaluation and analysis of products;</p>
<p>— optical wave guide for optical communications;</p>
<p>— product planning information concerning market research and customer analysis;</p>
<p>— product definition and configuration control information irrelevant to design, evaluation and analysis;</p>
<p>— analysis information, except thermal and stress analysis, e.g. vibration analysis;</p>
<p>— information on trial production, production process including production planning and production control,</p>
<p> and processes after production, such as shipment and repair;</p>
<p>— ophthalmic optics.</p> |
|---|
