January 30th, 2008New Sony’s 25-Megapixel 35mm Image Sensor Is Up For grab
Sony researchers in Tokyo reveal a digital SLR part that’s actually drool-worthy: a CMOS sensor the size of 35mm film that registers 24.81 effectual megapixelsâ€â€close to 26 million totals. It’s also built for speed with an all-pixel scan time of 6 frames per second, in 12-bit color. Sony isn’t about to pop it in one of its Alpha models, at least not as far as we can tell. In fact, Nikon would be a more probable customer for this easy target when it ships this summer, the improved to vie with Canon’s $8,000 EOS-1Ds Mark III DSLR, which has its own 21.1-megapixel full-frame CMOS. (Those pro guys really like it when their sensors are the same size as the film they used to use.) Now, who ever said the megapixel race was over? Sony Develops 35mm full size CMOS Image Sensor with 24.81 Effective Mega pixel declaration and extremely high signal conversion pace for use in Digital SLR Cameras
Tokyo, Japan - Sony company today proclaim the development of a 35mm full size (diagonal:43.3mm/Type 2.7) 24.81 effective megapixel, ultra-high speed high image quality CMOS image sensor designed to meet the rising requirement for rapid image capture and superior picture quality within digital SLR cameras.
Development background
In new years, the demand for digital SLR cameras featuring high resolution and wide graduation ranges able of capturing every detail of the subject matter has continued to increase, particularly among high-end part-time user. as well, the increasing user requirement to shoot from the same focal length and angle as 35mm film cameras using interchangeable lenses has led to significant interest in the development of 35mm, full size CMOS image sensors.
However, there are a number of technical challenges to developing full (large) size image sensors, such as the propagation delay caused by using extended power circuitry and signal lines, and the difficulty of maintaining uniform sensitivity and signal diffusion across the surface of the screen.
also, because current semiconductor exposure systems are unable to cover the entire chip surface of 35mm full size CMOS image sensors, multiple experience are required. This results in the difficulty of accurately controlling exposure variance and matching circuit patterns.
Benefits of this device
The newly developed CMOS image sensor combines unique circuit design technology with Sony’s advanced manufacture expertise, including a system of joining multiple exposed patterns together and advanced planarization for minimizing fluctuation, to realize 35mm, full size, 24.81 effective megapixel resolution. Sony’s “Column-Parallel A/D Conversion Technique†also provides each column within the sensor with its own A/D converter, minimizing image squalor caused by the noise that arises during analog meting out while at the same time delivering an enormously high signal change speed.
The enhanced image quality make by the sensor’s 24.81 effective megapixel resolution, wide range of commencement air achieved by its full size broad dynamic range, and the low noise, high resolution, ultra-responsive recital give by Sony’s Column-Parallel A/D exchange technique enable it to meet the ever-increasing requirements within high performance digital SLR cameras.
Sony will target for mass manufacture of this CMOS image sensor within this year.
Structure
(1). Number of effective pixels 6104(H) x 4064(V) approx.24.81M pixels
(2). Number of active pixels 6096(H) x 4056(V) approx.24.73M pixels
(3). Chip size 41.0mm (H) x 31.9 mm (V)
(4). Unit cell size 5.94μm (H) x 5.94μm (V)
(5). Image size Diagonal width 43.3mm (Type 2.7)
(6). Total number of pixels 6236(H) x 4124(V) approx. 25.72M pixels
Features
(1). High-speed digital output(12 channel parallel LVDS output)
(2). High picture quality in 35mm full size image sensor with 24.81M effective pixels
(3). “Column-Parallel A/D Conversion method” achieves high S/N and high-speed imaging
   ・CDS/PGA(24dB)Circuit (PGA: Programmable Gain Amplifier)
   ・12bit-AD Converter on chip
   ・Diversified readout mode
   ・All-pixel scan mode 6.3 frame/s (12bit)
   ・Window readout
