High-end Camera Sensor Module IMX290 IMX291 is a 1/2.8-inch CMOS image sensor developed by Sony, featuring a diagonal size of 6.46 mm and an effective resolution of 2.13 megapixels (MP). Designed with a square pixel array, it utilizes a triple power supply system (analog 2.9V, digital 1.2V, and interface 1.8V) for low power consumption. Equipped with R/G/B primary color filters, it delivers high sensitivity, low dark current, and minimal image smearing.Sony CMOS Module IMX290 IMX291
Sony Camera IMX290/IMX291
IMX291 Chip Overview
The IMX291 is a 1/2.8-inch CMOS image sensor developed by Sony, featuring a diagonal size of 6.46 mm and an effective resolution of 2.13 megapixels (MP). Designed with a square pixel array, it utilizes a triple power supply system (analog 2.9V, digital 1.2V, and interface 1.8V) for low power consumption. Equipped with R/G/B primary color filters, it delivers high sensitivity, low dark current, and minimal image smearing.
Key Featurer
Low-Light Performance
As part of Sony’s STARVIS series, the IMX291 excels in ultra-low-light conditions (down to 0.1 lux), enabling clear imaging in nighttime surveillance, dashcams, and other dark environments.
Wide Dynamic Range (WDR)
Supports multi-exposure WDR by synthesizing frames with varying exposure times to enhance detail in high-contrast scenes. However, it lacks DOL-WDR technology (available in IMX290 and newer models).
High Frame Rate & Resolution
Capable of 1080P@60fps output, ensuring smooth video capture for dynamic scenes.
Flexible Exposure Control
Features a variable charge-integration time (electronic shutter) for adaptive exposure adjustments based on lighting conditions.
Applications
Automotive Dashcams: Widely adopted in devices like the PAPAGO N291, demonstrating superior nighttime performance (e.g., license plate recognition in dimly lit garages) compared to alternatives (e.g., AR0238, OV4689).
Security & Surveillance: Ideal for industrial vision, vehicle cameras, and security systems due to its high sensitivity and low-light capabilities.
Cost-Performance Balance: Outperforms budget sensors like the IMX307 (lower cost but weaker in low-light and dynamic range) while remaining competitive in mid-tier markets.
Comparisons
IMX307: Half the price of IMX291 but with reduced low-light performance and dynamic range.
IMX335/326: The IMX335 offers higher resolution (5MP), while IMX326 emphasizes HDR. The IMX291 focuses on low-light excellence, making it a top choice for night-vision-critical applications
