Key Technical Specifications of the OV6211 Module Explained

For engineers, product developers, and system integrators, understanding the technical specifications of camera modules is vital to ensuring correct performance. The OV6211 120fps dual lens IR camera module presents a number of parameters that influence its capabilities. In this post we break them down so you can make informed decisions.

Sensor and Pixel Attributes

The OV6211 uses OmniVision OVM6211 sensor technology with global shutter pixels of size 3.0µm x 3.0µm. Global shutter technology allows capturing fast motion without image distortion (motion blur or rolling shutter artifacts). Pixel size matters because larger pixels collect more light, improving sensitivity, especially under IR illumination or low light.

Resolution and Frame Rate Combinations

• Native resolution of 400 x 400 pixels at 120fps is ideal for eye tracking or gesture applications.

• Supports lower resolutions at even higher frame rates (e.g. 200 x 200 at ~200fps) for certain use cases where speed is more important than detail.

Optical and Focus Properties

• Fixed focus lens with an optimal object distance around 20mm to 50mm. This makes it suited for close-range capture such as eye, face, or gesture. Anything outside that range will suffer focus blur.

• Field of view (FOV) is about 90°, wide enough to cover eye movement or gesture area without needing frequent mechanical adjustment.

Infrared LED Illumination

• The module has dual IR LEDs at 850nm. IR LED helps illuminate the scene invisibly, so tracking works in low light or dark.

• IR filter and LED arrangement should minimize interference with reflections or glazing, especially for headset or facial tracking.

Power and Interface

• Operates at 5.0V supply, USB2.0 interface. USB UVC driver-free plug and play makes integration easier.

• Power draw includes LED usage; idle or low power modes may reduce usage when full motion capture isn’t needed.

Module Size and Mechanical Attributes

• Physical size roughly 6mm x 6mm x 3.5mm. Very compact footprint, suits small devices, wearables, VR frames.

• Fixed focus lens type, durable mounting.

Sensitivity and Light Response

• With IR illumination, sensitivity is critical. The module has a certain sensitivity measure in mv/(Lux·sec) under IR (850nm).

• Noise, dark current, and dynamic range under IR or low light are important, especially in eye tracking where precision matters.

Certifications and Production Capacity

• Certifications such as CE, RoHS, FCC and ISO ensure compliance with regulatory standards.

• High supply capacity (hundreds of thousands per month) helps in scaling application production.

How Specs Translate to Real-World Performance

• For VR or wearable devices, the module’s compactness, frame rate, and IR capability allow for eye tracking that feels natural, not laggy.

• In biometric applications, resolution and sensor sensitivity contribute to accurate recognition.

• In gesture control, frame rate and optical quality (lens, LED, fixed focus) affect recognition speed and reliability.

Conclusion

The OV6211 dual lens IR camera module packs several technical strengths: high frame rate, global shutter pixels, IR illumination, compact size, fixed focus optics. By understanding what each spec implies — resolution vs frame rate trade-offs, optical aspects, sensitivity, interface and power — engineers can select or adapt this module optimally for VR, AR, biometric, gesture, or eye tracking systems.