The Making of an HDTV Lens - PBS
The Making of an HDTV Lens - PBS
The Making of an HDTV Lens - PBS
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Construction Factors<br />
Of <strong>Lens</strong> Parameters<br />
A1 <strong>Lens</strong> Type<br />
A2 Radius <strong>of</strong> curvature<br />
<strong>of</strong> each lens element<br />
A3 Number <strong>of</strong> elements<br />
A4 Shape <strong>of</strong> each<br />
lens element<br />
A5 Type <strong>of</strong> glass<br />
A6 AR Coating material<br />
A7 Wavelength<br />
tr<strong>an</strong>smission r<strong>an</strong>ge<br />
An-1 Cost<br />
An Toler<strong>an</strong>ce values<br />
Calculation <strong>of</strong> Optical<br />
Characteristics values<br />
B1 Ray Tracing<br />
B2 Spherical aberration<br />
B3 Astigmatism<br />
B4 Coma<br />
B5 Curvature <strong>of</strong> field<br />
B6 Spot Diagrams<br />
B7 MTF<br />
B8 Aberration simulations<br />
Bm M<strong>an</strong>ufacturing<br />
toler<strong>an</strong>ce <strong>an</strong>alysis<br />
Ch<strong>an</strong>ge A1 – An parameters<br />
Are all<br />
Specifications<br />
Satisfied ?<br />
NO<br />
Creation <strong>of</strong><br />
Tables <strong>an</strong>d Graphs<br />
expressing<br />
Relationships between<br />
A1 – An<br />
And<br />
B1 – Bm<br />
Ch<strong>an</strong>ges in<br />
B1 – Bn<br />
Possible ?<br />
YES<br />
YES<br />
NO<br />
Design<br />
Complete<br />
Stop<br />
Ch<strong>an</strong>ge<br />
Design Specifications
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