FLIR also has more expensive prototype iPhone thermal cases which make use of the larger (more expensive) Quark camera core, a tiny 0.75” cube with great resolution and low power requirements.
The FLIR Quark core is available in resolutions of 320 x 240 and 640 x 480, with a sensitivity of 0.05 ºC or 50 mK. The Quark can be configured with a wide variety of lenses, including 6.3mm, 9mm, 13mm, 14mm, 17mm, 19mm, 25mm, and a 35mm telephoto lens. Frame rates vary from a full 60 Hz down to an export ready 7.5 Hz.
The more expensive prototype iPhone infrared camera attachment has been exhibited with both a 9mm and a 13mm lens.
With the 9mm lens and 640 x 480 Quark core resolution, the prototype is able to detect a person at over 800 ft (250m).
But with the available 35mm lens, the sled has the potential to see a person at over 3000 ft (940m), or a warm vehicle at over a mile and a half away. The FLIR iPhone sled concept operates on a lower frame rate of 9 Hz to save power.