640×512 Thermal Imaging: Applications of High-Resolution Uncooled VOx Sensors

2026-09-29 14:56:03

The Role of 640×512 Resolution

640×512 is one of the higher-resolution detector configurations in the Ferolix thermal imaging portfolio.

It appears in the FX6, FS6, FP68-U, FP7-U and FP8-U configurations.

The same resolution can therefore support several different product architectures.

FX6

The FX6 is part of the handheld FX Series.

The series uses an uncooled microbolometer and offers a 640×512 configuration with a 12μm pitch.

Its compact form factor makes the FX platform suitable for handheld thermal observation.

FS6

The FS6 uses a VOx uncooled microbolometer with 640×512 resolution and 12μm pitch.

The FS Series also specifies NETD ≤40mK at 25°C and F/1.0, with 50Hz operation.

Different lens options allow the product to address different observation requirements.

FP68-U

The FP68-U uses a 640×512 uncooled microbolometer with 12μm pitch and NETD ≤25mK.

Unlike a simple thermal monocular, the FP68-U combines thermal imaging with a 1920×1080 visible camera, Laser Rangefinder and positioning system.

FP8-U

The FP8-U uses a 640×512 uncooled VOX detector with 12μm pixel pitch and 25mK NETD.

It combines this thermal channel with an 800×600 low-light sensor and 1920×1080 visible imaging channel.

This makes the FP8-U a multispectral observation platform rather than a single-channel thermal product.

Resolution and Lens Selection

640×512 resolution does not automatically define the field of view.

Lens focal length remains an important factor.

The FS Series, for example, offers multiple focal-length configurations, while the FP8-U uses a 75mm F1.0 thermal lens.

This illustrates why buyers should compare complete optical configurations.

Uncooled VOx Technology

VOx is used in several Ferolix uncooled thermal imaging products.

Uncooled systems can offer practical advantages for compact product development because they do not require the same cooling architecture as cooled detectors.

This makes them suitable for handheld and integrated observation devices.

B2B Product Portfolio

For international distributors, 640×512 products can form the upper end of an uncooled thermal product range.

A brand can combine compact handheld products, thermal sights and multispectral observation products to address different market segments.

Conclusion

640×512 thermal imaging is an important configuration across the Ferolix product portfolio.

Its implementation ranges from compact Handheld Monoculars to integrated multispectral platforms. The appropriate solution depends on the complete combination of detector, lens, display, processing and additional functions.