tag:blogger.com,1999:blog-19092890.post189622289215061867..comments2024-03-28T17:41:43.970+02:00Comments on Image Sensors World: Synaptics Under-Display Fingerprint Scanner Reverse EngineeringVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-19092890.post-185824465787439252018-08-16T14:18:37.664+03:002018-08-16T14:18:37.664+03:00...angular filter? Seems to be a Bragg reflector p......angular filter? Seems to be a Bragg reflector provoding a strongly angular dependent spectral transmitivity/reflectivity and therefore enabling angular selection of the light being reflected from the finger. This is probably used for resolution enhancement. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-91328586988737788042018-07-28T05:27:47.042+03:002018-07-28T05:27:47.042+03:00Collimator??
Collimator??<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-36033826999310050332018-07-26T13:05:39.689+03:002018-07-26T13:05:39.689+03:00What could be the usefulness of the filter?What could be the usefulness of the filter?Anonymousnoreply@blogger.com