Image:US pat 5589909 fig 2.png

From Wikipedia, the free encyclopedia

Image
File history
File links

Size of this preview: 800 × 580 pixels
Full resolution‎ (2,240 × 1,624 pixels, file size: 75 KB, MIME type: image/png)

This is a file from the Wikimedia Commons. The description on its description page there is shown below. Commons is a freely licensed media file repository. You can help.

This diagram image was uploaded in a raster image format such as PNG, GIF, or JPEG. However, it contains information that could be stored more efficiently and/or accurately in the SVG format, as a vector graphic.
If possible, please upload an SVG version of this image. After doing so, please replace all instances of the previous version throughout Wikipedia (noted under the “File links” header), tag the old version with {{Vector version available|NewImage.svg}}, and remove this tag. For more information, see Wikipedia:Preparing images for upload. For assistance with converting to SVG, please see the Graphics Lab.

[edit] Summary

US patent 5589909 fig 2

phase detection system

Legend (compiled from patent text)
7	Optical system for focus detection
8	Image sensor
30	Plane of the vicinity of the exit pupil of the optical system for photography
31 and 32	Pair of regions
70	Window
71	Visual field mask
72	Condenser lens
73 and 74	Pair of apertures
75	Aperture mask
76 and 77	Pair of reconverging lenses
80 and 81	Pair of light receiving sections

[edit] Licensing

This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.