EEVblog #380 - Sony CCD Sensor Teardown - Page 1
Forum section: electronics / general

author: nitro2k01
author_rank: Frequent Contributor
timestamp: November 06, 2012, 03:35:43 pm
content: I'm wondering if the celastic gel on that chip (on the big board) maybe has something to do with the tantalum cap on the other side. To hold it in place or stop it from banging into the chip pins in case of a check that might flex the board.

author: jeroen74
author_rank: Frequent Contributor
timestamp: November 06, 2012, 09:52:07 pm
content: I'd really like to see the insides of that lens, they are works of art tooTake it apart, then put it back together. I have done that a few times and I find it quite therapeutic so to say

author: Psi
author_rank: Super Contributor
timestamp: November 07, 2012, 11:41:53 am
content: My guess is the offset pots "R OFS" and "B OFS" are R=red and B=blue.Not much point having a "G OFS" for green because you'd just tweak red and blue to match whatever green is.

author: lmamakos
author_rank: Contributor
timestamp: November 07, 2012, 05:30:12 pm
content: What's interesting is that the filter array on the CCD appears to be colored Red, Green and Blue. An efficient red filter, for instance, ought to transmit red light through and reflect or absorb all the others. Perhaps it is the nature of the filter material applied over the individual CCD wells.In my purpose-built CCD camera for astrophotography, I have a monochrome sensor and a filter wheel that rotates 5 different filters in front of the CCD. The individual filtered images are later combined to produce a color JPEG image or whatever.. My filters are fancy/expensive interference filters, and the RED filter sure doesn't look like red! All those precious red photons are transmitted, and everything else is reflected, so it appears as almost the complement of the color.IMG_2801bylmamakos, on Flickr is an illustration of this. The filters in order from 1 to 5 are: (1) IR Block, (2) Red, (3) Green, (4) Blue, (5) narrowband Hydrogen-Alpha emission line filter (13nm-wide passband). The narrowband filter in position 5 is almost a mirror since it reflects pretty much the entire visual spectrum except for a very narrow band color corresponding to a single ionized Hydrogen emission line.Thanks for the tear down! Those detectors were sure expensive in those days, and while cheaper now, they are still quite dear, especially for the larger devices.

author: Pentium100
author_rank: Frequent Contributor
timestamp: November 07, 2012, 07:32:16 pm
content: Quote from: lmamakos on November 07, 2012, 05:30:12 pmThe light then reflects from whatever is behind the filter and comes back red, so the filter looks red.

author: Winston
author_rank: Regular Contributor
timestamp: November 09, 2012, 03:35:50 pm
content: If you enjoy viewing the beautiful, engineered microscapes of IC dice, here are a few of the photos I've taken of them:http://diephotos.blogspot.com/

author: solotrek
author_rank: Newbie
timestamp: November 11, 2012, 01:13:41 pm
content: Hi Dave,Really enjoying the blog. Found the following links to service manuals for the Sony CCD-V8AF-E.(I think the E is for Europe since it seems to cover UK, Germany..)They do have a block type schematic showing the the viewfinder and connector with functional blocks in part 1.http://www.freeservicemanuals.info/en/servicemanuals/viewmanual/Sony/CCDV8AFEPART1/None/None/SERVICEMANUAL/http://www.freeservicemanuals.info/en/servicemanuals/viewmanual/Sony/CCDV8AFEPART2/None/freeSonyservicemanual/SERVICEMANUAL/Note: I did have a couple issues downloading from this site as there seems to be download limits set for each IP address. I think part 1 is more interesting than part 2 in relation to the viewfinder details.Cheers.

author: moemoe
author_rank: Regular Contributor
timestamp: May 28, 2013, 11:54:44 am
content: I was just looking for the CCD follow up, but didn't find anything.Was it never produced or am I just unable to search properly?