I had posted a response and an example file to an olderthread regarding conics in SW08 suggesting a possible solution forthose looking for an editible conic sketch function. I was alsohoping for confirmation since I hadn't had the time to run anythingat that point. Since then I have modeled an aspheric lens with datasupplied from one of our vendors and ran the optical designsoftware. The focal length calculation matches for the lens Imodeled.
WooHoo a data point of one. I'd say I'm good to go. Anyway, foranybody wanting to try conic sketches as guide curves or whateverin SW09 without using a DT or API, this is what I did:
The formula is y=(x^2/R)/(1+(1-(1+b)/(x/R)^2)^.5)
where x = the start and end points ( 0 and the lens diameter /2)
R = the lens prescription radius
b = the conic constant (Rho)
For a sphere the conic = 0; for an Ellipse 0>b>-1; for aParabola b = -1; and for a Hyperbola b< -1
I found the formula at this telescope design website:
">http://bi-staff.beckman.uiuc.e...s_info.html
SolidworksGeneral
WooHoo a data point of one. I'd say I'm good to go. Anyway, foranybody wanting to try conic sketches as guide curves or whateverin SW09 without using a DT or API, this is what I did:
The formula is y=(x^2/R)/(1+(1-(1+b)/(x/R)^2)^.5)
where x = the start and end points ( 0 and the lens diameter /2)
R = the lens prescription radius
b = the conic constant (Rho)
For a sphere the conic = 0; for an Ellipse 0>b>-1; for aParabola b = -1; and for a Hyperbola b< -1
I found the formula at this telescope design website:
">http://bi-staff.beckman.uiuc.e...s_info.html
SolidworksGeneral
