Stuart 0 Posted February 8, 2009 If an IR camera specs state 1/3 Sony 520 TV lines, does it necessarily mean it will be less than 520 TV lines for daytime viewing?? My issue is that it appears that a couple of my cameras that states to be 520 TV lines has good night vision, but the daytime image is not as clear as I would expect a 520 TV line camera to be, especially when I compare the images to a couple of my cameras that has 420 TV lines. If anyone can provide me a bit of insight on this I would appreciate it. Share this post Link to post Share on other sites
Guest Posted February 8, 2009 Here is a small piece too the puzzle: Sony produce 2 types of CCD Chips in 1/3" 320TVL and 370TVL the first one is low/normal resolution and the last one is high resolution! JD If an IR camera specs state 1/3 Sony 520 TV lines, does it necessarily mean it will be less than 520 TV lines for daytime viewing?? My issue is that it appears that a couple of my cameras that states to be 520 TV lines has good night vision, but the daytime image is not as clear as I would expect a 520 TV line camera to be, especially when I compare the images to a couple of my cameras that has 420 TV lines. If anyone can provide me a bit of insight on this I would appreciate it. Share this post Link to post Share on other sites
Stuart 0 Posted February 8, 2009 If you are saying what I think you are saying, and if you are correct, this will change my whole approach to purchasing security cameras. Tell me, are their any resource available (printed) from Sony? Thanks for shaking me up!! (smile) Share this post Link to post Share on other sites
scorpion 0 Posted February 9, 2009 (edited) http://scorpiontheater.com/camlab.aspx ------------------------------------------------------------------------------ http://www.sony.co.jp/~semicon/english/90203.html Edited February 9, 2009 by Guest Share this post Link to post Share on other sites
scorpion 0 Posted February 9, 2009 PIXIM This is the best White Paper that I have found so far about Video Imaging Systems!! Pixim White Paper Digital Pixal System Technology http://www.pixim.com/assets/files/product_and_tech/Pixim_Technology_White_Paper.pdf ENGLISH Pixim Powered Cameras http://www.pixim.com/pixim-powered-cameras Resources http://www.pixim.com/products-and-technology/pixim-design-resources Every Pixal tells a story http://www.pixim.com/products-and-technology/technology Compression Advantages http://www.pixim.com/why-pixim/Pixims-Compression-Advantage Side By Side Comparison http://www.pixim.com/image-comparisons/side-by-side-images Enhanced Flicker Reduction Mode Overcomes Flicker Related Issues http://www.pixim.com/news-and-events/press-releases/PIXIM-ANNOUNCES-VIDEO-CAPTURE-BREAKTHROUGH Flashed Based Flip Books Explain How Pixim's Digital Pixal System Technology Works http://www.pixim.com/assets/flash/chronicles/volume1/index.html -------------------------------------------------------------------------------- SONY CX News http://www.sony.net/Products/SC-HP/cx_news/vol49/np_icx638_9aka.html Sony Image Sensor List http://www.sony.co.jp/~semicon/english/90203.html Digital CCD Camera Head Amplifier CXA2096N PDF http://www.sony.co.jp/~semicon/english/img/sony01/a6802110.pdf ENGLISH High Speed Buffer Amplifier For CCD Image Sensor CXA3691AEN PDF http://www.sony.co.jp/~semicon/english/img/sony01/a6809930.pdf ENGLISH CCD Verticle Clock Timer CXD1267AN PDF http://www.sony.co.jp/~semicon/english/img/sony01/a6807155.pdf ENGLISH Sony Super Had II PDF http://www.sony.net/Products/SC-HP/cx_news/vol52/pdf/featuring52.pdf ENGLISH 1/4 (4.5mm) CCD Image Sensor For NTSC Video Cameras ICX228AK http://www.sony.co.jp/~semicon/english/img/sony01/a6809608.pdf ENGLISH 1/3 (6mm) CCD Image Sensor For NTSC Video Cameras ICX258AK http://www.sony.co.jp/~semicon/english/img/sony01/a6805275.pdf ENGLISH 1/2 (8mm) CCD Image Sensor For NTSC Video Cameras ICX418AKL http://www.sony.co.jp/~semicon/english/img/sony01/a6805298.pdf ENGLISH 1/3 (6mm) CCD Image Sensor For NTSC SUPER HAD ICX368AKA (NTSC) PDF http://www.sony.net/Products/SC-HP/cx_news/vol49/pdf/icx638_9aka.pdf ENGLISH DRSCAN Dot sequential Readout System with Current Amplified signal output Noise reduction circuit.TM HAD Hole Accumulation Diode.TM -------------------------------------------------------------------------------- KODAK CMOS IMAGE SENSOR DATA SHEETS http://www.kodak.com/global/en/business/ISS/Products/CMOS/index.jhtml?pq-path=11939 NTERLINE CCD IMAGE SENSOR DATA SHEETS http://www.kodak.com/global/en/business/ISS/Products/Interline/index.jhtml?pq-path=12032 FULL FRAME CCD IMAGE SENSOR DATA SHEETS http://www.kodak.com/global/en/business/ISS/Products/Fullframe/index.jhtml?pq-path=12138 LINEAR CCD IMAGE SENSOR DATA SHEETS (USED IN SCANNERS) http://www.kodak.com/global/en/business/ISS/Products/Linear/index.jhtml?pq-path=12139 -------------------------------------------------------------------------------- MANUFACTURE CHIPER http://www.chiper.com.tw/showproduct.aspx?sn=21 TEXAS INSTRUMENTS CCD SIGNAL PROCESSOR FOR CAMERAS! http://focus.ti.com/lit/ds/symlink/vsp2260.pdf ------------------------------------------------------------------------------- SONY INFORMATION SONY CAMERAS http://pro.sony.com/bbsc/ssr/cat-securitycameras/ RESOURCES http://pro.sony.com/bbsc/ssr/cat-securitycameras/resource SOLUTIONS, AND TECHNOLOGY http://pro.sony.com/bbsc/ssr/cat-securitycameras/resource.solutions Deciphering Minimum Illumination Specifications http://pro.sony.com/bbsc/ssr/cat-securitycameras/resource.solutions.bbsccms-assets-cat-camsec-solutions-minIllumination.shtml USER GUIDES http://pro.sony.com/bbsc/ssr/cat-securitycameras/cat-cctv/resource.manuals.bbsccms-assets-cat-camsec-manuals-SecurityUserGuides.shtml Share this post Link to post Share on other sites
scorpion 0 Posted February 9, 2009 http://scorpiontheater.com/Documents/Scorpion_CCTV_Test_Chart_Instructions_arrowin.co.kr.pdf CCD VS. CMOS http://www.dalsa.com/markets/ccd_vs_cmos.asp EXVIEW HAD CCD INFO http://www.rfconcepts.co.uk/cxd2463r.pdf HAD http://en.wikipedia.org/wiki/Hole_Accumulation_Diode Share this post Link to post Share on other sites
Stuart 0 Posted February 13, 2009 Many thanks for the reference materials. It took me a while to get to all of it and study it but it was very enlightening. I now see how I have been wasting my time reading the Ebay ads (in some cases) as most of it is plain ole repetition posed to outdo the next highest resolution. Share this post Link to post Share on other sites
