File:EB1911 Vision - Dispersion of Light by a Lens.jpg
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Summary
| Description |
English: Aberration of Refrangibility.—When a ray of white light traverses on a lens, the different rays composing it, being unequally refrangible, are dispersed: the violet rays (see figure), the most refrangible, are brought to a focus at e, and the red rays, less refrangible, at d. If a screen were placed at e, a series of concentric coloured circles would be formed, the central being of a violet, and the circumference of a red colour. The reverse effect would be produced if the screen were placed at d. |
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| Date | published 1911 | |||
| Source | “Vision,” Encyclopædia Britannica (11th ed.), v. 28, 1911, p. 133, fig. 9. | |||
| Author | Unknown artist | |||
| Permission (Reusing this file) |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:51, 15 September 2021 | | 763 × 257 (48 KB) | Bob Burkhardt | {{Information |description = {{en|1=Aberration of Refrangibility.—When a ray of white light traverses on a lens, the different rays composing it, being unequally refrangible, are dispersed: the violet rays (see figure), the most refrangible, are brought to a focus at ''e'', and the red rays, less refrangible, at ''d''. If a screen were placed at ''e'', a series of concentric coloured circles would be formed, the central being of a violet, and the circumference of a red colour. The reverse eff... |
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