voice the performance of the ccd im- age sensors used in monitoring applications is directly linked to the performance of these crime- prevention cameras. thus i found this a rewarding development ef- fort, since it may lead to a social contribution in improved crime prevention. i was just one of the many people involved in this project. i strongly urge that you take advantage of the superb per- formance of the icx658/659, which incorporate the enthusiasm and spirit of many of us here at sony. new generation exview had ccd ultrahigh-sensitivity near infrared structure diagonal 6 mm (type 1/3) 380k/440k-effective pixel ccd image sensors icx658aka(ntsc), ICX658ALA(eia) icx659aka(pal), icx659ala(ccir) diagonal 6 mm (type 1/3) near infrared sensitivity: +4.5 db higher than earlier sony products at the 950 nm wavelength excellent compatibility with earlier sony products * : exview had ccd is a trademark of sony corporation. the icx658aka/659aka and ICX658ALA/659ala (icx658/659) are diagonal 6 mm (type 1/3) 380k/440k- effective pixel color and b/w ccd image sensors developed for use in sur- veillance cameras. the icx658/659 image sensors were developed with the particular goal of increasing the near infrared sensitivity. it is in day/night cameras that the icx658/ 659 can exhibit the true value of their high near infrared sensitivity. furthermore, these image sensors are ap- propriate for imaging with led and other near infrared light sources. see table 2 for a comparison of imaging characteristics. high near infrared sensitivity in the icx658/659, sony improved on the conventional photodiode and developed a structure with an even higher photoelec- tric conversion efficiency. this structure succeeds in capturing even more of the near infrared region light that escapes to the substrate side in normal ccd image sensors. the result is that the existing exview had ccd technology, which had the industry's top level of high sensitivity for surveillance ccds has been evolved even further, and these devices feature in- creased sensitivity not only to visible light, but in the near infrared region as well. compared to sony? conventional icx258/ 259 products, the icx658/659 achieve increased sensitivities of +10% in the vis- ible range, and +4.5 db in the near infra- red (wavelength: 950 nm). (see photo- graph 1.) we hope the icx658/659, which can make effective use of the near infrared light invisible to the human eye, will make new applications possible in the image sensing field. figure 1 presents a comparison of the icx658/659 spectral sensitivity character- istics and figure 2 shows the spectral char- acteristics of the increases in sensitivity provided by the icx658/659 with the icx258/259. excellent compatibility with conventional sony products the icx658/659 were designed to mini- mize as much as possible any difficulties in their use as replacements for the icx258/259. in particular, the image size, pixel counts, recommended drive timings, pin configuration, and package are all identical. (see table 1.) we strongly recommend that customers currently using the icx258/259 look into the performance of the new generation exview had ccd icx658/659 image sensors. higher sensitivity is a never-ending theme, especially in image sen- sors for surveillance cameras. until now, to respond to these needs, sony has provided a lineup of exview had ccd image sensors that displayed the industry's top level of sensor sensitivity. sony has refined this exview had ccd technology even further and has succeeded in developing technologies that improve sensitivity, especially sensitivity in the near infrared, significantly. now, sony has developed the icx658/659 image sensors that adopt these leading edge sony technologies as ccd image sensors for sur- veillance cameras, especially day/night cameras.
figure 1 spectral sensitivity characteristics comparison photograph 1 image comparison table 2 imaging characteristics comparison table 1 device structure comparison figure 2 spectral analysis of the increased sensitivity 400 500 0.2 wavelength [nm] relative sensitivity 0.4 0.6 0.8 1.0 600 700 800 900 1000 0.0 ye cy g mg icx658 icx258 400 500 1.2 wavelength [nm] sensitivity increase (icx658 sensitivity/icx258 sensitivity) 1.4 1.6 1.8 600 700 800 900 1000 1.0 conventional product (icx258/259) newly-developed product (icx658/659) ?imaging conditions led illumination in completely dark room ?led specifications wavelength: 950 nm, half width: 25 nm illumination distance: 1 m image size tv format transfer method total number of pixels number of effective pixels number of active pixels unit cell size horizontal drive frequency package 16-pin dip (plastic) item diagonal 6 mm (type 1/3) ntsc/eir interline transfer approx. 410k (811h 508v) approx. 380k (768h 494v) approx. 370k (754h 485v) 6.35 m (h) 7.40 m (v) 14.3182 mhz icx258ak/al optical black front: 3 pixels, rear: 40 pixels vertical horizontal front: 12 pixels, rear: 2 pixels chip size 6.00 mm (h) 4.96 mm (v) number of dummy bits horizontal: 22 vertical: 1 (even fields only) icx658aka/ala pal/ccir approx. 470k (795h 596v) approx. 440k (752h 582v) approx. 420k (738h 575v) 6.50 m (h) 6.25 m (v) 14.1875 mhz icx259ak/al icx659aka/ala color products sensitivity (f5.6) saturation signal smear (f5.6) item icx258ak 1100 mv 1000 mv 115 db icx658aka 1200 mv 1000 mv 115 db improvement +0.8 db at a wavelength of 950 nm +4.5 db b/w products sensitivity (f8) saturation signal smear (f8) item icx258al 1000 mv 1000 mv 115 db ICX658ALA 1100 mv 1000 mv 115 db improvement +0.8 db at a wavelength of 950 nm +4.5 db equivalent to above equivalent to above equivalent to above equivalent to above
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