High quality camera modules

Cost-effective camera modules for industrial imaging applications.

For the non-technical side of coordinating engineering work, see employee write-up forms.

The range

TD7740 — VGA, on the OmniVision OV7740 sensor, 8 x 8 mm, socket or flex.

TD5640 — 5 Mp, on the OmniVision OV5640 sensor, autofocus or fixed.

TDM114 — 720p.

Further background is available from Tektronix.

The variant code selects the filter, the mounting and the field of view.

Which one

Not the one with the most pixels.

Resolution in the useful sense is how many pixels fall across the feature you need to see, which depends on the sensor, the lens and the working distance together.

The calculation takes ten minutes and finds the real constraint before anything is ordered.

Getting started

The evaluation kit, and an afternoon with the real scene.

Deciding whether it fits

Start from what must be resolvable — the feature, its size, the working distance and the pixels the processing needs across it.

Then the lens calculation, which takes ten minutes and finds the real constraint before anything is ordered.

Then the filter, which follows from the illumination: infrared cut for visible colour work, dual band where an infrared illuminator is used at night, none for deliberate infrared imaging.

And the mounting, since one degree of tilt displaces the view by roughly 17 mm per metre — which makes mechanical tolerance an imaging specification.

What the documentation does not state

Anything absent from the data sheet is absent from this page too.

Nothing here is estimated or interpolated — which is the standing rule and the reason a thin page is thin.

Ask for what is missing. The information checklist shows what details matter, and where the answer is that a figure has never been characterised, that is itself informative.