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dbOptic: More information and screen displays . . . .Spot Diagrams . . .
and encircled energy plots . . .
Unique "Double-Star Test" . . .
The XY Plot Menu Command allows the plotting of aberration vs surface design parameters, object distance or wavelength. The red plot below shows how system spherical aberration LA' varies with radius of curvature of surface number 4, the primary mirror of a 1000 mm focal length telephoto mirror lens. The horizontal gray line represents LA' = 0 (fully corrected). The horizontal green lines represent the allowable tolerance values. The short red vertical bar represents the system as currently designed with R4 equal to about -419mm. The plot clearly shows that while LA' is within the allowed tolerance, it could be reduced further by flattening the surface slightly to about R = -423mm.
New imaging of Extended
Objects available beginning with Version 2.0 . . . |
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![]() Original object from file. |
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| Object File 101 x 101 pixels | Image after tracing through 50mm f/2 Double Gauss Lens | Image after tracing through 50mm f/2 Plano Convex Lens |
| dbOptic, the Optical Design Database Program, contains many more features than can be covered here. Download a FREE evaluation version containing complete program documentation and a software tutorial or see dbOptic ordering information. | ||
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System Requirements dbOptic is a 32-bit Windows® application which operates under Microsoft Windows NT® (version 3.51 or later), Windows 2000®, Windows 95/98®, Windows XP® and Windows Vista®. Your installed web browser software is used off-line to access the software tutorial and program documentation. Only non-essential web-enabled features require an internet connection. Site License and Network Installations for Multiple Workstations. A site license is required for network file sharing operation of this program. Installation instructions are included with the site license. Each Site License permits up to 10 users on network or ten users on standalone computers or on any combination of 10 network or standalone users. |
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