File:Lens Radii Sign Conventions.png
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Size of this preview: 552 × 600 pixels. Other resolutions: 221 × 240 pixels | 600 × 652 pixels.
Original file (600 × 652 pixels, file size: 64 KB, MIME type: image/png)
Summary
| Description |
English: Figure illustrates use of positive & negative curvatures for the surfaces of a lens.
Think of the principle axis as being a real number line, with the mid-plane marking the origin of the axis. Light rays travel in the positive direction. IF the center of curvature – for either surface – lies in the negative region, then the curvature is negative, R < 0. IF the center of curvature – for either surface – lies in the positive region, then the curvature is positive, R > 0. |
| Date | |
| Source | Own work |
| Author | Erik LongLeaf |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:11, 18 April 2013 | | 600 × 652 (64 KB) | wikimediacommons>Eirk LongLeaf | User created page with UploadWizard |
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