Image sensor for mobile
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Overview
Unleashes smartphone users' creativity. Under this vision, Sony Semiconductor Solutions Corporation (SSS) launched "LYTIA", brand for mobile image sensors.
“I want to express and share my impressions more freely”
“I want to take pictures beautifully whatever the scene and conditions”
“I don’t want to miss a momentary inspiration”
LYTIA will continuously evolve to respond to those expectations and SSS will continue to innovate new technologies and to provide wide range of products.
Features
Achieves outstanding low noise and high sensitivity performance
As the sensor size of a camera increases, the pixel size increases proportionally, allowing it to capture more light. In 2022, SSS commercialized 1-inch sensors for mobile devices, the IMX989. It captures subjects clearly even in scenes with high contrast, while enabling high-quality shooting in dark places with high sensitivity and low noise. In addition, for sensors smaller than 1-inch, UHCG (Ultra High Conversion Gain) is a circuit technology that achieves high conversion efficiency from charge to voltage, reducing graininess caused by random noise that occurs when shooting in dark environments. This improves reproducibility when shooting in dark places, enabling clear subject imaging.
Wide Dynamic Range
The new UHCG w/3HDR (Ultra High Conversion Gain with three High Dynamic Range) feature achieves high dynamic range performance by reading out charges accumulated in a single exposure using three different gain settings and then combining this data. This allows for well-balanced photos with reduced blowout in bright areas and blackout in dark areas, while maintaining low noise levels in mid-tones, even when shooting scenes with high contrast.
When capturing moving subjects, motion can sometimes appear as afterimages. However, this HDR technology minimizes artifacts (motion ghosting) by reading out the image captured in a single exposure using three gain settings and then combining the data.
Improved video performance
Taking snapshots and videos with smartphones has become commonplace, and there is now a growing need to easily shoot higher quality videos for video creation and communication.
LYTIA achieves 4K60pfs video shooting, and by reducing power consumption, it also enables HDR video shooting, making it possible to shoot high quality videos in a variety of environments and situations.
Product Lineup
| Optical Format | Pixel Size | Effective Resolution | 2-Layer Pixel | Max Frame Rate@４K | Single Frame ⁻HDR | Multi Frame ⁻HDR | UHCG | Auto Focus | Always-on | |
|---|---|---|---|---|---|---|---|---|---|---|
| LYT-900 | １/0.98” | 1.6μm | 50MP |  |
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LBMF |
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| LYT-818 | １/1.28” | 1.22μm | 50MP |  |
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LBMF |
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| LYT-T808 | １/1.43” | 1.12μm | 52MP |
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LBMF |
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| LYT-808 | １/1.4” | 1.12μm | 50MP | |
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LBMF |
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| LYT-700 | １/1.56” | 1.0μm | 50MP | |
|
LBMF |
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| LYT-700C | １/1.56” | 1.0μm | 50MP |  |
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LBMF |
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| LYT-600 | １/1.95” | 0.8μm | 50MP | |
LBMF |
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| LYT-500 | １/2.93” | 0.6μm | 50MP |  |
LBMF |
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| LYT-505 | １/2.93” | 0.6μm | 50MP | |
LBMF |
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| LYT-501 | １/2.93” | 0.6μm | 12.5MP |
*With Partial PD |
LBMF |
|
DCG-HDR：Dual Conversion Gain-HDR
DAG-HDR：Dual Analog Gain-HDR
LBMF：Less Blanking Multi Frame
UHCG：Ultra High Conversion Gain
Technology
The 2-Layer Transistor Pixel is the world’s first*1 stacked CMOS image sensor technology with a pixel structure that separates photodiodes and pixel transistors on different substrate layers, as opposed to the conventional style of having the two on the same substrate. This new structure approximately doubles*2 saturation signal level*3 relative to conventional image sensors, widens dynamic range and reduces noise. This pixel structure will enable pixels to significantly improve their imaging properties even at smaller pixel sizes.
*1) As of an announcement on Dec 16, 2021
*2) Comparison between our conventional back-illuminated CMOS image sensor and 1μm square conversion when this technology is applied.
*3) Maximum number of electrons that a single pixel can store.
Always-on (AO) is a sensing technology for mobile and IoT devices, enabling them to recognize the environment or changes around them, and facilitating an autonomous UI based on the information meanings derived from sensing.
The "all-pixel auto focus" type image sensors can use all of the imaging pixels as phase difference detection pixels.
This significantly increases the density of acquiring phase difference information, enabling stable AF performance even in challenging scenes where focusing was difficult.
Applications
These products are leveraged in Smartphone(Viewing).
Related Links
Image Sensor for Mobile "LYTIA"
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