Phase Difference AF Patents for Mirrorless

[Canon Rumors]

<p>A bunch of new patents for phase-difference AF have appeared. They look to be related to mirrorless and EVF applications.</p>
<p><strong><span class="notranslate">Patent Publication No. 2015-22264 (Google Translated)</span></strong></p>
<ul>
<li><span class="notranslate">Published 2015.2.2</span></li>
<li><span class="notranslate">Filing date 2013.7.23</span></li>
</ul>
<p><strong><span class="notranslate">Canon patent</span></strong></p>
<ul>
<li><span class="notranslate">Phase difference detection method to be received by the AF sensor can be reflected incident light from the imaging lens</span></li>
<li><span class="notranslate">The phase difference detection by the image plane phase difference AF</span></li>
<li><span class="notranslate">The phase difference detection by external light AF sensor</span></li>
</ul>
<p>Source: [<a href="http://translate.google.com/translate?sl=auto&tl=en&u=http://egami.blog.so-net.ne.jp/2015-02-11" target="_blank">EG</a>] via [<a href="http://www.northlight-images.co.uk/cameras/Canon_rumours.html" target="_blank">NL</a>]</p>
<p><strong><span style="color: #ff0000;">c</span>r</strong></p>

 

[infared]

The interest in Canon's mirrorless effort...is astounding! LOL.

 

[Mt Spokane Photography]

The patent was filed 7-23-2013, which means the work was done earlier. The field is moving so fast, that this has likely already been surpassed in more recent research, so its more like something that may be built on in the future.