Hole accumulation diode (HAD), is a noise reduction technique patented and introduced to the world by the Sony Corporation more than a decade ago. Applied to image sensors, this technology significantly improves a camera’s overall picture quality. Specifically, a hole accumulation diode is positioned just beneath an image sensor’s surface in order to greatly suppress the dark current or fixed-pattern noise that normally occurs in a sensor when light is absent.
What Makes This Technology So Special?
As a result of the hole accumulation diode positioning, cameras equipped with Sony Super HAD technology are capable of producing superior color and light filtering, and possess twice the sensitivity of other camera devices. Popular among closed-circuit television (CCTV) cameras, the Sony Super HAD also offers a better smear rejection than other surveillance cameras. This means that images captured aren’t nearly as grainy as those that are captured by cameras without a hole accumulation diode. As this pertains to home security, such enhanced features make it clear why cameras using HAD technology are far preferred over other surveillance camera systems.
The Importance of Sony Super HAD Technology in Surveillance
Owning a camera with the capabilities and features afforded by Sony Super HAD technology means that details, such as colors, patterns, facial features, license plate numbers and other identifying details captured during surveillance recording appear more crisp and clear than they would otherwise be. The quality of nighttime images, and others taken in low light environments, are never compromised with HAD technology either. This is because cameras equipped with Sony Super HAD are able to record with amazing detail even in dark settings such as those which would ordinarily make seeing with the naked eye a challenge. In very bright settings, even in instances of direct sunlight, glare is also significantly reduced thus enabling a camera with a hole accumulation diode to function in even the most extreme lighting conditions, as well.
Reactions to Sony Super HAD Technology
When our tech support manager, Matt Apperson, was asked about the drawbacks associated with a camera using Sony Super HAD technology, he was unable to cite a single one. Customers who have purchased cameras with this advanced technology appear to be equally impressed by its performance. In fact, when referring to the Lorex Super Resolution IR Bullet Camera (which uses Sony Super HAD technology) one of our customers describes the imaging experience as “…a world of difference” in comparison to other cameras. Simply put, when it comes to the best quality in surveillance devices, cameras using Sony Super HAD technology cannot be more highly recommended.
Camera Brands Featuring Sony Super HAD Technology
Even though the hole accumulation diode technology originated with Sony, a consumer in the market for a new surveillance system needn’t feel limited to Sony cameras. Other surveillance camera brands such as Lorex, Atrix, Lasertech and others use Sony Super HAD technology in their camera systems, as well. In fact, in perusing our surveillance camera pages you will find several indoor and outdoor cameras utilizing this technology.
Our Take On CCD Vs. CMOS Technology
In addition to acquiring a basic understanding of Sony Super HAD and its significance in the home security camera sector, it helps to know a little about image sensors– specifically, CCD and CMOS types. We’ll just give it to you straight here by saying that the best surveillance cameras on the market use what is known as Charged Coupling Device (CCD) image sensors. This is because CCD image sensors offer unsurpassed clarity as they effectively convert analog data into digital pixels. And it just so happens that cameras featuring Sony Super HAD are also among the most recent technology in the CCD arena, as well. Purchasing a camera with CCD image sensors and Sony Super HAD technology is, in our opinion, a superior selection.
On the other hand, cameras that do not use a Charged Coupling Device, rely on Complimentary Metal Oxide Semiconductors (CMOS). While cameras using this technology can be useful for surveillance purposes, the image quality they produce is believed by some in the home security business to be somewhat inferior to CCD image sensors. CMOS sensors are cheaper to manufacturer, however, which leaves many to speculate that it will become a more popular and competitive technology in the near future.
What Does Sony Super HAD Mean to YOU?
The entire purpose and end result of positioning a hole accumulation diode beneath the surface of an image sensor is an enhanced image quality. Such ultimately translates into the finest imaging homeowners can rely upon for their surveillance needs. We firmly believe that when it comes to the best, clearest and most concise picture quality, there simply is no better way to achieve this than with a camera utilizing Sony Super HAD technology.
Do you have experience using a camera equipped with Sony Super HAD? If so, we welcome your thoughtful comments and opinions below.