File:Lee US1739512A (Speedic, 1924).svg

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Summary

Description
English: Speedic lens design by Horace William Lee for Kapella. Redrawn from US Patent 1,739,512A (1924).
Date
Source Own work
Author Mliu92

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Captions

''Speedic'' lens design by Horace William Lee for Kapella

Items portrayed in this file

depicts

6 February 1924Gregorian

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File history

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Date/TimeThumbnailDimensionsUserComment
current17:07, 21 August 2023Thumbnail for version as of 17:07, 21 August 202360 × 40 (3 KB)Mliu92Fix error in rear element geometry
17:04, 21 August 2023Thumbnail for version as of 17:04, 21 August 202360 × 40 (2 KB)Mliu92Uploaded own work with UploadWizard
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