tag:blogger.com,1999:blog-19092890.post2748515649688502383..comments2024-03-19T08:15:45.946+02:00Comments on Image Sensors World: Panavision Imaging Announces Fast GS HDR SensorVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-19092890.post-68748886656986555022011-11-27T04:03:25.817+02:002011-11-27T04:03:25.817+02:00Who are Panavision imaging guys?Who are Panavision imaging guys?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-84739268490426470102011-11-13T19:35:38.973+02:002011-11-13T19:35:38.973+02:00You can find more details about the ACS at:
http:...You can find more details about the ACS at:<br /><br />http://www.panavisionimaging.com/PDF/pviacsvaps.pdfAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-80103469704301932272011-11-12T13:50:42.536+02:002011-11-12T13:50:42.536+02:00All smoke & mirrors? What is suppose to be so ...All smoke & mirrors? What is suppose to be so big about ACS?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-25909344228781008292011-11-11T13:31:39.906+02:002011-11-11T13:31:39.906+02:00Guys, you are not good at electronics design! A so...Guys, you are not good at electronics design! A source follower is a 100% voltage feedbacked amplifier!!!! HahaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-73874471963176999072011-11-11T13:27:43.377+02:002011-11-11T13:27:43.377+02:00they have shown the GS NDR at Vision Stuttgart. Th...they have shown the GS NDR at Vision Stuttgart. The performance is poor.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-64581130195011150292011-11-07T10:07:35.028+02:002011-11-07T10:07:35.028+02:00How does Panavision ACS sensor perform global shut...How does Panavision ACS sensor perform global shutter operation?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-67875068998337118382011-11-07T07:39:59.815+02:002011-11-07T07:39:59.815+02:00Is Photo-diode current (dis)charging column capaci...Is Photo-diode current (dis)charging column capacitance to convert current to voltage? Then, I wonder how sensitivity numbers compare with state-of-the-art APS?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-54468392450513605482011-11-07T01:52:08.145+02:002011-11-07T01:52:08.145+02:00"The OLD WAY, CMOS APS Sensors.
>How quic..."The OLD WAY, CMOS APS Sensors. <br />>How quickly things change<br /><br />Forget CMOS Active Pixel Sensors, with their complex amplifier per pixel designs. <br />>Complex? <br />Complex sensor designs complicate your image – too much noise, <br />>because sub 2e- rms is still too high...?<br />not enough sensitivity<br />>because BSI has only 99% fill factor<br />, poor dynamic range<br />>because 120 dB+ is not enough<br />large optical format,<br />>because 1.1 um pixels are so large<br /> power hungry,<br />>uh...<br /> ……..… <br /><br />The list of ‘bad’ goes on and on. <br /><br />Active Pixel Sensors use an amplifier per pixel architecture. An amplifier can be made from a single, very large transistor or FET, or can be made using multiple transistors. The amplifiers purpose is to drive the image signal up the column of pixels to the readout circuitry. <br /><br />However, that amplifier, from an engineering point of view, is a very poor one. It does not have feedback<br />>because it does not need it, <br />a built in self-control, to control its gain or amplification. <br />>because it does not need it<br />This means that each pixel can have a different response to light<br />>but they don't<br />, further corrupting your image. <br />>not usually.<br /><br />Along with that amplifier, each pixel has two additional transistors that act like switches, one to select that pixel for readout, and the other to reset the pixel to get it ready to read the next image. When these switches turn on and off, they add more noise to your image. "<br />>only if you are really really bad designer.<br /><br />Sounds like someone had trouble building a state of the art CMOS APS sensor and is feeling sorry for themselves...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-6075084884013544632011-11-07T00:40:53.551+02:002011-11-07T00:40:53.551+02:00This is a real American style Marcom!This is a real American style Marcom!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-52018371353182588242011-11-05T23:47:56.406+02:002011-11-05T23:47:56.406+02:00I just find this funny these days. Who are these ...I just find this funny these days. Who are these guys trying to kid? From the XtremePIX technology link above:<br /><br />"The OLD WAY, CMOS APS Sensors. <br /><br />Forget CMOS Active Pixel Sensors, with their complex amplifier per pixel designs. Complex sensor designs complicate your image – too much noise, not enough sensitivity, poor dynamic range, large optical format, power hungry, ……..… <br /><br />The list of ‘bad’ goes on and on. <br /><br />Active Pixel Sensors use an amplifier per pixel architecture. An amplifier can be made from a single, very large transistor or FET, or can be made using multiple transistors. The amplifiers purpose is to drive the image signal up the column of pixels to the readout circuitry. <br /><br />However, that amplifier, from an engineering point of view, is a very poor one. It does not have feedback, a built in self-control, to control its gain or amplification. This means that each pixel can have a different response to light, further corrupting your image. <br /><br />Along with that amplifier, each pixel has two additional transistors that act like switches, one to select that pixel for readout, and the other to reset the pixel to get it ready to read the next image. When these switches turn on and off, they add more noise to your image. "Eric R Fossumhttps://www.blogger.com/profile/09740612324630105312noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-54020159169335165002011-11-04T14:57:53.147+02:002011-11-04T14:57:53.147+02:00No image neither?No image neither?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-12537577541898798872011-11-04T11:23:17.073+02:002011-11-04T11:23:17.073+02:00No pinned-photodiodes?No pinned-photodiodes?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-52939817047565744692011-11-04T11:10:46.100+02:002011-11-04T11:10:46.100+02:00Will can we find this patent?Will can we find this patent?Anonymousnoreply@blogger.com