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Cost estimator tool Zemax | OpticStudio 15
© 2015 Zemax, LLC
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Welcome to the Webinar! We will discuss
Several design-for-manufacture considerations after optimization and tolerancing A new XML format for sharing lens data Cost Estimation with a single lens Cost Estimation with many lenses
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Example We will start with Beam_Expander_Starting_Point.zmx A typical post-optimization file:
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Design for Manufacture
Only a few points discussed here: Use Float-by-Stop, stop on dummy surface Using manufacturer’s preferred glasses Define three diameters! Typically there are only two, we provide three for completeness Adjust edges for the manufacturing values Look at thickness/diameter ratios Generally tidy up parameter data There is lots more to discuss here, but these are the things we’ll discuss today
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Glass Choice Design with whatever you want, but then check the manufacturer’s preferred catalog Most vendors will work with any mainline glass, but working with preferred glasses is usually a good place to start Zemax OpticStudio has tools to automate this
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Glass Choice
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Tidy data Should really tidy up radii, thicknesses, semi-diameters to 3 or 3 significant figures at most I have only done semi-diameters
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Define Tolerances
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Zemax Translation
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Skip the Tolerancing Step!
Tolerancing itself is covered elsewhere, so we won’t cover it here. Let’s assume that these tolerances give acceptable performance Move on to providing manufacturing data to the lens vendor ISO format is an international standard for singlet manufacture Can be extended to cemented doublets Everything is really a collection of singlets!
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ISO 10110 Standard Element Drawing
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There is more than one diameter!
Semi-diameters and the Draw tab define how lens edges are drawn ISO plot uses two additional parameters
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Three diameters Diameter = 2*LDE(semidiameter) Effective Diameter is usually the same or smaller, to show a ‘working diameter’ ‘Flat’ is the diameter out to the mechanical edge which would include any flat bevel or unpolished surface Zemax makes good guesses, you may have to refine Cost Estimator needs ‘Flat Diameter’ to be defined, not set to zero
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Add ‘Flat’ Diameter
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That’s a Lot of Data! XML export is intended to allow all this data to be shared with vendors, without printing and re-keying
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XML Format Intended to be an open format for transferring singlet manufacturing data Includes everything that ISO10110 supports First use is the ‘Cost Estimator’, which sends this data to a manufacturer for a cost estimate Optimax have led the way with this
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First, you have to visit optimaxsci.com to register for a user account
Cost Estimation First, you have to visit optimaxsci.com to register for a user account Then tell ZOS what it is
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Then Set the Quantities
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Then Look at the Cost Estimator Tab
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Make Radius Tolerance 2 fringes
Costs go up!
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Cost Estimator is available from a tab on the ISO drawing
More Cost Estimator Cost Estimator is available from a tab on the ISO drawing Useful for studying in-depth the cost impact of tolerance decisions The Cost Estimator is also available as a standalone tool Useful for when you have many lenses
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Cost Estimator Tool
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Summary Design for Manufacture requires a lot of attention to detail The cost estimator is very useful for examining the impact of tolerances on price It also gives useful error messages related to manufacturability
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