Headlamp Test Platform

HIGHLIGHTS

A customizable and flexible photometric vision solution framework for automotive headlamp testing to meet a range of requirements.

Measurement of key photometric properties of: low-beams, high-beams, structured light sources, corner/fog lights, and designer lighting elements/lightguides.

Variations include: module photometric EOLT stations, headlamp photometric EOLT stations and aiming / pre-aiming stations.

Fits in the production line at various stages, from the light source to complete assembled multifunction lamps.

A performance-and cost-optimal solution for a specific application, designed to spec.

Get to Market Faster with Efficient Testing

Leverage 25+ years of automotive test experience, with the specialized design and manufacturing of automotive lighting testers. Using specialized know-how in this field, including photometric, electro-mechanical equipment and software solutions, accelerate your time to market with a higher quality product.

This test platform is customizable to your specification and application. Feasibility studies are available to ensure your solution is exactly what you are looking for.

Complete Quality from Testing to Machine Vision

Our Headlamp Test Platform tests a variety of parameters include electrical tests, camera tests, and communication tests. Photometric hardware variants include, complete headlamp testing, module testing and module absolute photometry. It is compatible with different PLCs for production and service modes.

Additionally, our vision experts are a key resource for lighting tests. With extensive experience firsthand with cameras, lenses, filters and other components, your system will not miss a single defect.

Hardware and Software Highlights

Several photometric hardware options are available to accommodate different scenarios. These include:

Headlamp relative measurements, with fresnel lens
Module relative measurements with planconvex or achromatic lens
Module absolute measurements

Every system comes with measurement calibration tools for relative and absolute intensity measurements, user configuration and test execution, configurable test sequencing and unique operator and engineering interfaces.

Platform Features

The headlamp test platform is generalized enough to test any headlamp or module, but customized to your exact requirements.

Basic photometric measurements include:

Kink point location/referencing
Intensity (absolute or relative raster / defined points)
Sharpness of low-beam cutoff line
Relative color
Beam angle

Advanced optional scenarios include:

Beam adjustment using motorized screwdrivers
Daily parking / designer light tests
Current measurement of light sources, solenoids, steppers
Communication tests on CAN, LIN, RS-232
Headlamp cover coating test
Aiming and adaptive light systems tests
Camera parts presence tests
Cosmetic defects tests
Precise LED chip positioning on heatsink prior to gluing
LED and lightguide brightness (comparative)

Test Types

Headlamp Test Platform
Lamps	Current Measurements: Measures the light source when emitting constant output. Detection of correct ignition curve. Measurement of current to the coil aperture, shuttering the main beam. Positioning and Measuring the Positions of LED Sources: The placement of LEDs on the base of the robot-guided camera. Measure the position of LED sources with a positioning accuracy of 0.01 mm and an angle of 0.1 degree. Measure the luminance of LEDs (comparative).
Corner and Fog Lights	Measuring the Light Intensity: Scan the projected beam of the camera and compare to the reference sample. Find the homogeneity and intensity of the light at selected points or areas. Measuring and Adjusting the Volume in a Vertical Position: Scan the projected beam of the camera and compare to the reference sample. Finding the angle of the central bundle and its settings using positioning mechanisms in the headlight.
Headlight	High Beam: Measure the sharpness of the border within the intensity gradient between lit and unlit parts. Measure and compare the intensity of the center portion of the beam by camera. Position of the center of the projected beam area in which the intensity is higher than the set value. Low beam: Mark the location of the kink point between the light and dark parts of the projected beam, including the ability to automatically adjust the beam position along the horizontal and vertical axes. Measure the angle of the lines between the light and dark parts of the projected beam. Measure the beam intensity at selected points and areas compared to the reference sample. Measure and adjust the sharpness and color between the light and dark parts of the projected beam. Daily Parking, Designer Light Fixtures The camera looks directly at the headlamp for detection of the presence of light sources, waveguides and the homogeneity of the light emitted. Protective Layer Detection of the protective coating layer and its features on the glass cover of the assembled headlamp.
Stepper Motors	Lights VAC System (Vertical Aim Control) Check and track the vertical position of the beam controlled by a stepper motor. Lights of AFS (Adaptive Front-Light System): Check the dipped beam breakpoint angle in the horizontal and vertical axes at several points. Control the stepper motor using LIN, CAN, RS-232 port.
Other Parts	Assembly Errors Validate the presence of parts, screws, stickers, seals. Communication Verify communication with the light via LIN, CAN, RS-232 port.