File:US pat 5589909 fig 2.png
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US patent 5589909 fig 2
phase detection system
| 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 |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:52, 6 June 2007 | | 2,240 × 1,624 (75 KB) | Shotgunlee (talk | contribs) | US patent 5589909 fig 2 phase detection system |
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