tag:blogger.com,1999:blog-19092890.post4492604938612580271..comments2024-03-28T17:41:43.970+02:00Comments on Image Sensors World: Rumor: ST Supplies SPAD-based ToF Autofocus for LG G3 SmartphoneVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-19092890.post-85374897210242947012014-07-23T15:47:35.982+03:002014-07-23T15:47:35.982+03:00http://www.youtube.com/watch?v=yO80hQfV4pg
http:/...http://www.youtube.com/watch?v=yO80hQfV4pg<br /><br />http://investors.st.com/phoenix.zhtml?c=111941&p=irol-IRHome<br />Under 7/23 statement:<br />"Imaging, Bi-CMOS, ASIC and Silicon Photonics (IBP)<br />Started volume shipments of the time-of-flight proximity sensor for the widely acclaimed LG G3 smartphone that began its global rollout from the second quarter of 2014."<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-61525270804831465932014-06-05T18:32:09.164+03:002014-06-05T18:32:09.164+03:00And another approach for focusing:
http://www.busi...And another approach for focusing:<br />http://www.businesswire.com/news/home/20140605005713/en/LinX-Imaging-Takes-Mobile-Photography-Dimension-Aiming#.U5CIeokazCQAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-71334774212572731612014-06-03T16:29:05.090+03:002014-06-03T16:29:05.090+03:00The VL6180 does not allow multi-point AF, which se...The VL6180 does not allow multi-point AF, which seems to be the case on some videos. I think that it relies on a trinagulation principle with a laser projector equipped with a beam splitter (diffractive optical element for instance) in order to generate multiple laser beams. The position of each laser spot within the captured images helps to determine the right focus for each region of interest. Such active AF principle is insensitive to motion blur, low contrasted scenes, low lighting and it is very fast. Only 2 or 3 frames are required to find the best focus against tens of frames for a regular passive AF. This is already used in professional cameras aimed to quick data capture (patent WO2008027316).Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-31332400481220709192014-06-03T09:54:53.052+03:002014-06-03T09:54:53.052+03:00On the ST website you may find the preliminary dat...On the ST website you may find the preliminary datasheet of VL6180, aTime-of-Flight (ToF) proximity sensor based on VCSEL. The working range is just 50cm but it is enough to adjust the focus in the near field.Federiconoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-88755563524209506482014-06-02T23:03:52.507+03:002014-06-02T23:03:52.507+03:00When I read "laser auto focus" and see t...When I read "laser auto focus" and see the picture of the product, my guess would be that they simple project an infra-red laser point in parallel to the optical axis of the lens. The closer the object, the more off-center the point will be in the image. I guess the precision will be more than enough for smart phone usage (i.e. quite high depth of field). (Beside above, I have no knowledge about the product, maybe it is really TOF...)tentnerhttps://www.blogger.com/profile/08497139857025987223noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-29183434243282413242014-06-02T22:35:53.959+03:002014-06-02T22:35:53.959+03:00SPAD+ToF in a phone -- awesome! Nice work ST (if ...SPAD+ToF in a phone -- awesome! Nice work ST (if true)!Eric R Fossumhttps://www.blogger.com/profile/09740612324630105312noreply@blogger.com