March 06, 2004
Beta Prototype Lenses
Projector lens details from Kinkajou team member Martin Tollliver:
I ordered a BW992BR and a BW1043BR from Boowon Optical to use as the beta prototype projector lens.
The 992 is the first lens listed on the page. The 1043 is no longer listed. I think they both did fine. We went with a 1/2" CCD lens because that is the approximate size of the microfilm image (1/2" square).
Condenser lens details from Kinkajou team member Joel Jaimes:
The lenses in the condenser were purchased from Edmund Industrial Optics in New Jersey (800) 363-1992. I still have their catalog. As to the focal lengths:
>> Plano-convex (part number F45-097) has an effective focal length of 25.0mm
>> Double-convex (part number F45-161) has an effective focal length of 35.0mm
The catalog doesn't show how to calculate the focal length for our condenser as a system, as it has three lenses. The focal length for a system (Fsys) consisting of two lenses with focal lengths of F1 and F2 would be: Fsys = [F1 * F2] /[F1 + F2 - d] The distance between the two lenses is d. [see Joel's senior thesis for more details]
