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Omron / Sentech FLV-LN142 machine vision lighting
Omron / SentechBar / linear lights
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Omron / Sentech FLV-LN142 Line Light

FLV-LN142

The FLV-LN142 belongs to Omron's FLV-LN Series Line Lights, designed for vision system applications requiring narrow, parallel line illumination achieved through an integrated condenser lens. The unit consumes 18.4 W and weighs approximately 890 g; it is compatible exclusively with the dedicated FLV-ATC26024 analog lighting controller (100–240 VAC) and is not supported by Omron's camera-mount (FLV-TCC) or digital (3Z4S-LT IDGB) controllers. Based on the FLV-LN naming pattern confirmed across the series (FLV-LN442W = 442 × 16 mm illuminated area), the FLV-LN142W/B provides approximately 142 mm × 16 mm of active illumination length. The W suffix denotes white LED and the B suffix denotes blue LED; both share the same body, power, and weight specifications.

Brand
Omron / Sentech
Lighting type
Bar / Line Light (FLV-LN series, condenser lens)
Color / wavelength
White (FLV-LN142W) / Blue (FLV-LN142B)
Available wavelengths
White (FLV-LN142W), Blue (FLV-LN142B)
Mode
Continuous and trigger (strobe) via FLV-ATC26024 controller
Illuminated area
122 mm × 16 mm
Power consumption
18.4 W
Controller required
Yes — requires FLV-ATC26024 analog lighting controller (100–240 VAC)
Weight
890 g
Emission angle
Narrow / highly directional (condenser lens, near-parallel beam)
Connection
Cable (FLV-XC□LN extension cable)
Diffuser
No (condenser lens for directed line illumination)
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Technical overview

The FLV-LN142 is a bar-format LED line light built around an integrated condenser lens that collimates the LED output into a near-parallel, highly directional beam. Unlike diffused bar lights that scatter light broadly, the condenser optic concentrates energy into a narrow active zone — specified at approximately 142 mm × 16 mm — so that each point along the illuminated strip receives substantially higher irradiance than a diffused equivalent at the same wattage. At 18.4 W total consumption, this focused delivery means the effective lux-on-target is disproportionately high for the power draw, which directly benefits cameras operating at short exposure times in strobe mode. The aluminum housing dissipates heat efficiently at this power level and holds the LED array and lens in a fixed, mechanically stable relationship, keeping the beam profile repeatable across long production runs.

The two wavelength variants — White (FLV-LN142W) and Blue (FLV-LN142B) — share identical body, power, and weight (890 g) specifications, making them interchangeable in a given fixture without mechanical re-engineering. White light is the general-purpose choice, preserving natural contrast across a wide range of surface tones and materials. The blue variant provides narrower-bandwidth illumination that pairs with monochrome cameras and optional bandpass filters to suppress ambient interference, enhance contrast on metallic surfaces, and improve edge definition on transparent or translucent materials. Selecting between them therefore depends on the camera sensor's peak spectral response, any filter in the optical path, and the spectral reflectance of the target surface rather than on any electrical or mechanical difference. Both variants operate in continuous mode or in externally triggered strobe mode, with the trigger and dimming functions managed entirely by the required FLV-ATC26024 analog lighting controller (100–240 VAC), which is the sole compatible controller — the camera-mount FLV-TCC and digital 3Z4S-LT IDGB controllers are explicitly not supported.

In a system layout, the FLV-LN142 is typically mounted so its 142 mm active length spans the full width of the inspection zone, with the narrow 16 mm beam depth oriented along the direction of motion or perpendicular to the feature axis being resolved. The near-parallel beam geometry excels in grazing-incidence (low-angle) and bright-field line illumination setups: at low angles it rakes across surface topology and produces high-relief shadows from scratches, dents, or raised print, while in bright-field it floods a tight strip with uniform, directional light that exposes contamination, coating gaps, or print registration errors. The FLV-XC□LN extension cable series allows the controller to be mounted in the cabinet while the head is positioned precisely at the working distance, reducing cable-management complexity in tight conveyor installations.

Best for

  • Surface defect detection on flat or rolled materials — metal sheet, film, or foil — where the directional, near-parallel beam produces strong shadow contrast from micro-scratches, pits, or raised burrs across the full 142 mm illumination width.
  • Print and label inspection on packaging lines where the white variant provides broad-spectrum even illumination across bar codes, date codes, and graphics, and the 142 mm length comfortably spans typical label widths in a single pass.
  • Solder paste and PCB surface inspection in electronics assembly, where the blue variant's narrower bandwidth combined with a monochrome camera and matched bandpass filter enhances contrast between solder, flux residue, and substrate material.
  • Dimensional gauging and edge-detection tasks on conveyor lines where a tight, uniform line of light must mark a precise boundary on the part — the condenser lens geometry minimises beam spread and keeps the illuminated boundary sharp at the target working distance.
  • High-throughput strobe applications where the FLV-ATC26024 controller's trigger input synchronises the light pulse to camera exposure, allowing the full 18.4 W electrical budget to be concentrated into short pulses for motion-freeze with line-scan or area-scan cameras running at production speed.

Selection notes

  • Controller compatibility is mandatory and exclusive: the FLV-LN142 operates only with the FLV-ATC26024 analog lighting controller (100–240 VAC). The camera-mount FLV-TCC and the digital 3Z4S-LT IDGB controllers are not supported. Budget and plan the controller into the system BOM from the start — the light cannot be powered or strobed without it.
  • Wavelength choice determines filter and camera pairing strategy before installation. The White (FLV-LN142W) variant suits colour cameras and broadband monochrome sensors. The Blue (FLV-LN142B) variant unlocks interference-rejection when used with a matched bandpass filter and a monochrome camera optimised for its wavelength band, but verify your camera's spectral response curve before committing to ensure adequate sensitivity in the blue channel.
  • The condenser lens produces a near-parallel, narrow beam rather than a wide flood. Working distance and mounting angle are therefore critical design variables: moving the head further from the target does not significantly widen the beam in the way a diffused bar light would, so the 142 mm × 16 mm active area constrains the maximum usable field width. Confirm that the illuminated length matches or slightly exceeds your camera's field of view at the intended working distance.
  • At 890 g, the FLV-LN142 is heavier than diffused bar lights of comparable length. Mounting brackets must be sized for this weight, and vibration isolation should be considered on high-cycle conveyor lines to preserve positional repeatability of the beam relative to the camera's field of view.
  • Strobe duty cycle and thermal management depend on the FLV-ATC26024 controller settings. The 18.4 W continuous rating is the baseline; overdrive strobe modes available through the controller can deliver higher peak intensity at reduced duty cycle, but total thermal energy into the LED must respect the controller's configured limits to maintain LED lifetime and beam stability across multi-shift production.

Specifications: General
BrandOmron / Sentech
Lighting typeBar / Line Light (FLV-LN series, condenser lens)

Specifications: Interface
ConnectionCable (FLV-XC□LN extension cable)

Specifications: Optical
Color / wavelengthWhite (FLV-LN142W) / Blue (FLV-LN142B)
Available wavelengthsWhite (FLV-LN142W), Blue (FLV-LN142B)
Emission angleNarrow / highly directional (condenser lens, near-parallel beam)
DiffuserNo (condenser lens for directed line illumination)

Specifications: Electrical
ModeContinuous and trigger (strobe) via FLV-ATC26024 controller
Power consumption18.4 W
Controller requiredYes — requires FLV-ATC26024 analog lighting controller (100–240 VAC)
Supply voltage100–120 VAC or 200–240 VAC, 50/60 Hz (to controller)

Specifications: Geometry
Illuminated area122 mm × 16 mm

Specifications: Mechanical
Weight890 g
Housing materialAluminum (consistent with FLV series)

Frequently asked questions

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