File:Gravitational lens geometry.svg

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Summary

DescriptionGravitational lens geometry.svg	English: Optical geometry of a gravitational lens where, $\alpha$ is the bending angle, $\theta _{S}$ is the actual angle subtended (without lens effect) by the source at the observer, $\theta _{1}$ is the observed angle subtended (due to lens effect) by the apparent source at the observer, $D_{L}$ is the angular diameter distance to the lens, $D_{S}$ is the angular diameter distance to the source, and $D_{LS}$ is the angular diameter distance between the lens and the source.
Date	16 July 2012
Source	Own work
Author	Krishnavedala
SVG development InfoField	The SVG code is valid. This vector image was created with a text editor by Rubber Duck (☮ • ✍). This file is translated using SVG `switch` elements: all translations are stored in the same file.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

	This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
	The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. CC0falsefalse

File history

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	Date/Time	Dimensions	User	Comment
current	13:42, 4 February 2026	512 × 307 (4 KB)	Abemos	Fixed line height for "da" and applied english as default language
	13:39, 4 February 2026	512 × 307 (3 KB)	Abemos	Added switch statement translation support and a Danish translation
	11:23, 7 April 2015	512 × 307 (2 KB)	Krishnavedala	simplified drawing
	11:15, 7 April 2015	512 × 307 (2 KB)	Krishnavedala	simplified drawing
	00:28, 17 July 2012	512 × 307 (2 KB)	Krishnavedala