BF200x150 Area Light

Introduction

One part number. Infrared only.

Every other size in the BASIC range offers white, red and a choice of light guidance. BF200x150 is a single build — BF200x150-DL-IR850 — diffuse, 850 nm, and nothing else.

That makes it a purpose-built part rather than a size in a ladder. If the application is infrared, this is a 200 × 150 mm field of it in an 11 mm housing.

Measured in W/m², not lux

Every other light in this range is specified in lux and this one is not, which is correct rather than inconsistent: lux is weighted to the response of the human eye, and the eye does not see 850 nm at all. A lux figure for an infrared source is a number about nothing.

Work from irradiance and the spectral response of your sensor.

768 LEDs behind a diffuser

The highest emitter count in the BASIC range, in a field smaller than the BF200x200's. Infrared LEDs are less efficient per package than visible ones, so the density is what gets the irradiance up — and the diffuser is what stops 768 individual sources reading as 768 individual sources.

41 °C case temperature at 21 °C ambient for 13 W at the light field, in an 11 mm extrusion with no fins and no fan.

The cable

Highly flexible 3D cable, which is called out in the record and is not a given on this range. It matters where the light is on a moving axis: a standard cable in a drag chain has a bend-cycle life, and an infrared backlight on a pick-and-place head will exhaust it.

Applications

Infrared backlighting: silhouette and edge detection on parts that are opaque in the visible but transmit at 850 nm, presence and absence, hole detection, and inspection through coatings, films and some plastics that block visible light.

Availability

Note that this product has no photography in our archive, which is a consequence of it being a single infrared build. The specifications above are complete; the images are not.