Fujifilm and Panasonic collaborate on 'industry-leading' organic/CMOS sensor
Fujifilm and Panasonic have announced the joint development of a sensor technology that combines a light-sensitive coating on top of a CMOS chip. The companies claim higher dynamic range and sensitivity than current CMOS sensors, along with the ability to receive light at steeper angles - making it easier to design cameras with wide-angle lenses and allowing lenses to be mounted nearer to the sensor. The announcement extends from the work Fujifilm has been conducting on organic (carbon-based) photo-senstive materials and combines it with CMOS underpinnings developed by Panasonic. The result is a chip that uses CMOS technology only for circuitry - with the organic layer taking over the role of converting light into electrons.
Although the companies don't detail a timeline for production, the joint presentation made at the VLSI Technology show in Japan shows images of pixel designs on the 0.9μm and 3μm scales. The smaller pixel would allow the creation of a 20MP sensor for mobile phones, while the larger one would result in a 41MP APS-C sensor.
Fujifilm and Panasonic jointly develop an organic CMOS image sensor technology using organic photoelectric conversion layer
Offers Industry's highest* dynamic range and sensitivity for vivid and texture-rich images
|A schematic of how the Fujifilm/Panasonic sensor uses an organic photo-sensitive layer near the front of the sensor(left), compared with a convention CMOS design (right)|
FUJIFILM Corporation (President: Shigehiro Nakajima) and Panasonic Corporation (President: Kazuhiro Tsuga) have developed organic CMOS image sensor technology that uses an organic photoelectric conversion layer with a photoelectric conversion property at the light receiving section of an image sensor to achieve performance beyond that of conventional image sensors**. Applying this technology to the image sensors of digital cameras and other imaging devices expands its dynamic range*** and enhances sensitivity*4 further to prevent highlight clipping in bright scenes and capture a dark subject with vivid colors and rich textures.
The industry has put into continuous efforts to explore image sensor technologies for increasing their number of pixels. This has dramatically improved sensor resolutions, but, in order to further boost image quality, it is necessary to expand the dynamic range, enhance sensitivity and prevent cross-talk or color mixing between pixels. Panasonic took advantage of its semiconductor device technology to boost image quality for its high-performance image sensors. Fujifilm, on the other hand, has developed highly-reliable organic photoelectric conversion layer with high absorption coefficient to be used on a sensor's light receiving section instead of silicon photodiode*5 in its effort to build a new image sensor technology.
In the latest collaboration, Fujifilm and Panasonic have combined Fujifilm's organic photoelectric conversion layer technology with Panasonic's semiconductor device technology to jointly develop an organic CMOS image sensor that outperforms conventional image sensors. The new organic CMOS image sensor offers the industry's highest dynamic range of 88dB, advanced sensitivity 1.2 times more sensitive than conventional sensors** and broader range of incident angle*6 to enable the production of more sensitive and compact cameras with better image quality.
The two companies will promote the application of this organic CMOS image sensor technology to a wide range of products including security cameras, in-vehicle cameras, mobile device and digital cameras.
Fujifilm and Panasonic will present the research results at the 2013 Symposium on VLSI Technology (VLSI2013) to be held in Kyoto on June 11, and the 2013 International Image Sensor Workshop to be held in Utah, U.S.A. on June 15.
* Performance of the light receiving section of image sensors, as of June 11, 2013 according to Panasonic data.
** Estimation from Panasonic image sensors
*** Range of light that can be recorded (ratio between the brightest and darkest areas recorded)
*4 The sensitivity of image sensors refers to the conversion ratio of light into electric signals. The greater the sensitivity is, the clearer you can capture low-light scenes.
*5 A type of photo detector that senses incident light, installed for each image sensor pixel to convert light into electric signals
*6 Range of incident light angles for efficient conversion into electric signals
|Transmission electron microscope images of the 3μm (left) and 0.9μm (right) organic/CMOS pixels the companies have developed.
The organic photoelectric conversion layer (OPF), in relation to the microlenses (ML) and color filters (CF) is indicated.
Overview of the newly-developed organic CMOS image sensor technology
A conventional image sensor consists of a silicon photodiode for capturing light, metal interconnect, color filter and on-chip micro-lens. The newly-developed organic CMOS image sensor technology uses organic photoelectric conversion layer with high absorption coefficient instead of the silicon photodiode, reducing the thickness of the light receiving section down to 0.5 microns, i.e. one severalth of the thickness of a silicon photodiode. This structure provides the following benefits:
- Industry's highest dynamic range of 88dB to prevent highlight clipping and produce a vivid and texture-rich image even in low light
Panasonic's semiconductor device technology has improved the signal saturation value*7 by four folds compared to that of conventional image sensors. Coupled with the newly-developed noise-cancelling circuit, the sensor technology provides the industry's highest dynamic range of 88dB, preventing highlight clipping in bright scenes and capturing a vivid and texture-rich image in low light.
*7 The maximum amount of electric signals that can be handled. Receiving a signal greater than this value leads to highlight clipping.
- 1.2 times higher sensitivity than conventional sensors to capture clear images even in low light
The transistors and metal interconnects in each pixel, fabricated using Panasonic's semiconductor device technology, are coated with photoelectric conversion layer, developed using Fujifilm's organic material technology. The area of the light receiving section becomes limited in conventional image sensors because of the existence of metal interconnects and the need to form light shield film to prevent light incidence into areas other than the photodiode in each pixel. However, the organic CMOS image sensor technology coats the sensor with organic film, which can harvest all the light received on the sensor. This boosts sensor sensitivity by 1.2 times compared to conventional sensors to deliver clear images even in low light.
- Range of incident angle expanded to 60 degrees for faithful color reproduction (See the image sensor illustrations above)
The thickness of the organic film with high absorption coefficient, developed by Fujifilm, has been reduced to just 0.5 microns, or one severalth of the thickness of silicon photodiode in the light receiving section. Since the conventional silicon photodiode measures at least 3 microns in depth, the range of incident angles was limited to around 30 – 40 degrees. The thin film, achieved with the organic CMOS image sensor technology, has enabled the expansion of this range to 60 degrees, efficiently utilizing light entering at an angle for faithful color reproduction with no color mixing. It also gives greater flexibility in lens designs, facilitating the reduction of overall camera size.
- Offering high reliability for broader applications
Fujifilm has developed a process technology to produce inorganic films for protecting the organic film. It prevents the entry of moisture and oxygen into the organic film to safeguard it against performance degradation. The sensor technology has cleared reliability tests involving the application of stress such as temperature, humidity, electrical voltage and light, paving the way for the use of the organic CMOS image sensor in a wide range of applications.
May 19, 2016
May 16, 2016
Jun 7, 2016
Jun 1, 2016
|Owens Valley Milky Way by ed rader|
from Sign, sign, everywhere a sign..
|Break by Hank3152|
from Motion blur
|Camp by T bird|
from A Big Year - birds
|The Maasai Shepherd by cgravel|
from - African Man - (Portrait in Black and White + A Border)
Stanley Greene captured 'brutally honest' photographs in the war zones of the Middle East, Chechnya and Georgia. He was also one of the few African-American photographers working internationally.
Owners of Leica M cameras that suffer from peeling CCDs will be able to claim a free repair in the future so long as the camera was purchased within five years of the fault becoming apparent, the company has announced. Read more
No mic socket? No problem. In this video, Daniel Peters at Photo Gear News shows you how to make a lapel microphone using just a smartphone and a pair of earbuds.
The Carl Zeiss Jena BIOTAR 75mm F1.5 Red T lens is very rare and priced accordingly. It can be yours today for the low, low price of $15,000.
The MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) has developed a drone that does not require any human control for recording tracking shots. Read more
In this terrifying video, Iraqi journalist Ammar Alwaely narrowly misses a sniper's bullet, which takes out his chest-mounted GoPro. Warning: strong language. Watch the video
A new report expects action camera growth to increase about 15% by 2021, with Ultra HD cameras driving demand. Read more
Profiles for Adobe Photoshop and Lightroom have been released for Irix's ultra-wide 11mm and 15mm primes. Like all profiles, these correct for distortion and vignetting.
An upcoming firmware update from DJI will cripple its drones unless they are 'activated' on the company's website. Live streaming will be turned off and flight radius/altitude will be limited.
Brent from ShareGrid rounds up the 10 most common products filmmakers are renting from one another for productions; chances are good you own one or more of them.
DaVinci Resolve is making strong moves to compete with Premiere and Final Cut Pro, including affordable control panels for colorists. According to Premium Beat, they're really good.
If you are not planning to fly your drone commercially you are not required to register it with the FAA anymore. This decision was handed down by a federal court in Washington, D.C.
Whether you're syncing a flash, wondering why banding is appearing in your image or getting strange images from your camera's silent shutter mode, the way your shutter works has a role to play. Here's what happens when you press the shutter button. Read more
William Vazquez travels all over the world documenting humanitarian work. He spoke to us about the challenges of his work, the importance of research and why a multitool and duct tape are your best friends in the field. Read more
These ten film cameras stand the test of time. They are easy to find, affordable and capable of excellent results. Read more
Photographer Aydın Büyüktaş uses a drone, 3-D rendering and Photoshop to create mind-bending landscapes.
They're offering tips for composing selfies and converting to black and white.
Whether you're seeking ultra-high resolution, first-rate autofocus or 4K video capture, there are some supremely capable 'semi-pro' cameras available. Find out which models we liked best in our updated semi-pro camera roundup. Read more
With composition specified by the director, drones may one day be able to navigate a movie set on their own.
Canon has made the previous version, 1.1.0 available for download again.
Impossible? Not if you have a fast lens and 5 stops of stabilization.
This 'strictly limited edition' is a refurbished original Polaroid 600 redesigned with a custom two-tone paint job.
Nikon today announced a reorganization of its corporate structure which will see several divisions and business units closed or merged. Read more
High school students from New York got he chance to shoot along with award-winning photojournalist Ron Haviv in Morocco.
VentureBeat reports that Monday's Surface Pro announcement will bring evolutionary updates to Microsoft's high-end Windows 10 tablet.
The Japanese Camera Journal Press Club has awarded Olympus three out of its four annual prizes after voting by photographic magazine editors and readers.
The photos are great, but whether drones should have been flying in a couple of these places is debatable.
It's not dead yet! A few years ago several high profile filmmakers convinced Kodak to keep making motion picture film. Now they need more facilities to process it.
We made a vlog about vlogging with the M6 (which we used to make the vlog).