LES100 Coaxial Light

Introduction

Illumination on the camera's own axis, through a 45° beam splitter, over a 100 × 100 mm field.

A hundred millimetres square is the size of a small PCB, a phone display, a wafer coupon or a lid. It is where a coaxial light covers the whole part in one frame rather than being indexed across it.

What it puts on the part

Irradiance at 100 mm runs 3.5 to 36.8 W/m² continuous and 185.5 to 1,233.3 W/m² in strobe — the figure to work from for the infrared build, where lux says nothing because the camera and the eye disagree about what it is seeing.

Electrically: 8 to 14 W continuous at the light field, against 613 to 1,073 W in a flash.

Timing

100 % brightness within 5 µs in strobe, 180 µs in switching mode. Flash duration is 10–100 µs, 20–220 µs or 50–750 µs by part number, at 10, 35 or 100 Hz.

Triggering takes TTL at 3 to 30 V DC or PLC at 15 to 30 V DC, on the rising edge.

Mounting it

Twelve threaded holes across the front face and a rear face carrying the same pattern, so the light can be hung from either side of the beam splitter housing. The M16 12-pin connector exits the centre of the rear plate rather than an edge — it stays inside the footprint, which is what lets several of these sit side by side.

At 2 kg the mount is a real load. Support it from the housing, not from the cable.

The controller is inside

Brightness is set on the light — a potentiometer from 0 % to 100 % — or from the machine over the analogue VC input, 2 to 10 V DC.

Applications

PCB and electronics. Display and glass. Wafer and substrate. Polished and coated metal. Print, label and code reading. The 850 nm build for subsurface and through-coating views.

Where it fits

Between LES80 at 80 × 80 mm and LES160 at 160 × 160 mm.