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Purpose-engineered high-resolution lenses delivering distortion-free, telecentric imaging for the most demanding automotive dimensional inspection tasks.
Global automotive manufacturing is entering a new era of zero-defect quality standards, driving massive adoption of machine vision lighting solutions across assembly lines worldwide.
Modern automotive production lines demand non-contact dimensional gauging at speeds exceeding 1,000 parts per hour. Lighting machines — integrating structured illumination with telecentric optics — have become the backbone of inline and offline inspection stations. From Tier-1 suppliers in Germany and Japan to rapidly scaling EV factories in China and Southeast Asia, the adoption of coaxial lighting machines for gauging stamped brackets, crankshafts, bearing races, and precision castings is no longer optional — it is a competitive necessity. Industry leaders such as Bosch, Continental, and BYD have standardized machine-vision-based gauging to meet ISO 16949 and IATF 16949 quality requirements, pushing annual demand for high-performance illumination optics to record levels.
The global shift toward electric vehicles has fundamentally changed what automotive parts gauging must achieve. EV powertrains introduce ultra-precision components — battery cell housings, busbar connectors, rotor lamination stacks, and hairpin stator windings — all requiring sub-micron dimensional verification. Traditional contact measurement cannot keep pace with EV production rates, making lighting machines with high-resolution telecentric lenses the preferred solution. Furthermore, battery safety regulations in Europe (EU Battery Regulation 2023) and China (GB 38031-2020) mandate 100% inspection of critical cell dimensions, creating a sustained, policy-driven demand surge for advanced gauging lighting systems throughout the EV supply chain.
Optics get the attention, but illumination is the foundation. Inconsistent lighting introduces false gradients, edge blur, and shadow artifacts that render even the finest telecentric lens ineffective. A purpose-designed lighting machine — pairing coaxial, dome, ring, or dark-field illumination with precisely matched telecentric objectives — ensures that every pixel in the sensor sees only the dimensional truth of the part, not lighting noise. This is why Canrill Optics engineers its lighting solutions as complete optical systems, not afterthoughts.
From raw castings to final assembly, lighting machines enable precision measurement at every critical stage of automotive manufacturing.
Crankshaft journals, camshaft lobes, connecting rod bores, and gear tooth profiles require micron-level dimensional verification at full production speed. Coaxial lighting machines eliminate reflection artifacts on curved metallic surfaces, enabling accurate edge detection for bore diameter, runout, and surface flatness measurements that directly impact engine performance and longevity.
Pouch cell thickness variation, prismatic can squareness, cylindrical cell height and diameter, terminal weld quality, and busbar alignment all demand non-contact gauging with consistent, high-uniformity illumination. Dome and coaxial lighting machines paired with high-magnification telecentric lenses deliver the flatfield imaging necessary to reliably detect ±20µm dimensional deviations on reflective aluminum and copper battery surfaces.
High-speed stamping produces brackets, structural reinforcements, and body panels requiring 100% hole-position and edge-contour gauging. Line-scan lighting machines — matched with 12K telecentric line-scan lenses — capture full-width images of large stampings in a single pass, detecting burrs, deformation, and positional errors at throughputs exceeding 300 parts per minute on modern transfer press lines.
Rolling element bearings require outer race diameter, inner race roundness, and ball complement gauging to tolerances below 1µm. Dark-field lighting machines reveal surface microcracks and inclusions invisible under conventional illumination, while telecentric optics eliminate parallax error when measuring miniature fastener thread pitch and head height for critical safety-relevant fastener assemblies.
Modern vehicles integrate ADAS cameras, LiDAR windows, heads-up display glass, and transparent sensor covers that require dimensional and surface-quality gauging using specialized coaxial or telecentric backlight illumination. Lighting machines with tunable spectral output enable inspection across both opaque metallic substrates and transparent optical components within the same production gauging station.
Collaborative robots performing press-fit, clip-installation, and sub-assembly operations rely on machine-vision lighting machines for real-time part-present confirmation, positional feedback, and post-process gauging. Integrated with Statistical Process Control (SPC) software, lighting machine gauging data provides continuous Cp/Cpk monitoring to predict and prevent dimensional drift before scrap or rework is generated.
The convergence of AI, photonics, and Industry 4.0 connectivity is accelerating innovation in automotive gauging illumination systems.
Next-generation lighting machines leverage deep learning algorithms to dynamically adjust illumination intensity, angle, and spectral composition in real time based on part geometry, surface finish, and defect classification requirements — eliminating manual setup and dramatically reducing changeover time on flexible automotive assembly lines.
Combining UV, visible, and near-infrared illumination within a single compact lighting head enables simultaneous gauging of geometric dimensions, surface microstructure, and material composition — a capability increasingly required for multi-material lightweight automotive structures that combine aluminum, carbon fiber, and advanced high-strength steels.
Pressure to reduce floor space and move gauging directly into machining and assembly fixtures is driving development of ultra-compact coaxial lighting modules with diameters under 30mm. These miniaturized units, paired with micro-telecentric lenses, enable in-process gauging inside CNC machining centers and robotic welding cells without interrupting production flow.
Lighting machine gauging systems are increasingly connected to digital twin platforms, enabling real-time comparison of measured part geometry against nominal CAD models. Cloud-based analytics aggregate dimensional data across multiple production sites, providing global quality engineers with cross-plant SPC dashboards and AI-powered predictive maintenance alerts for tooling and fixture wear.
The demand for inspecting wider automotive parts at higher speeds is pushing line-scan imaging beyond 12K to 16K and beyond. Ultra-high-resolution telecentric lighting machines enable full-width inspection of door panel inner stampings, floor pan assemblies, and large EV battery tray structures in a single scan pass, replacing multiple area-scan stations and reducing total gauging system cost.
Automotive OEMs' carbon-neutral manufacturing commitments are driving adoption of energy-efficient LED-based lighting machines with intelligent duty-cycle management. New high-brightness LED arrays deliver equivalent illumination intensity to legacy halogen systems at less than 15% of the power consumption, while solid-state longevity eliminates lamp replacement downtime and reduces total cost of ownership significantly.
Canrill Optics' PTL-82mm series delivers 151-megapixel effective resolution across a 12K pixel array, purpose-designed for integration into lighting machines used in automotive dimensional gauging applications. Its bilateral telecentric optical path eliminates magnification change with defocus, ensuring that dimensional measurements remain accurate even when part height variation or fixture positioning tolerances are present. The high-flatfield design maintains MTF uniformity across the full sensor width, making it the ideal objective for lighting machine stations inspecting stamped parts, transmission components, and EV battery modules at high throughput.
View Full Specifications →"Our objective is to produce a top-level lens and become one of the leaders in telecentric technology."
Canrill Optics, established in 2009, is the first company in China to focus exclusively on the manufacturing and marketing of telecentric lenses and telecentric lens design. We are the only company in the world to have built a complete, vertically integrated supply chain — combining our own mechanical factory and optical factory under one roof — ensuring uncompromised quality control across every component of our lighting machine optics.
Over the years, as a custom lens manufacturer, Canrill's lens technology has been upgraded through four generations of advanced optical engineering. We have earned the trust of worldwide clients and forged successful partnerships with globally recognized brands, including Samsung, Apple, LG, Huawei, Han's Laser, TSMC, and many leading automotive Tier-1 suppliers.
From manufacturing to creation, we are on the way.
World-class optical engineers and manufacturing experts dedicated to advancing telecentric lighting machine technology for automotive gauging applications.
Since founding Canrill in 2009, Simon has been focused on building the world's leading manufacturer of telecentric lenses. Under Simon's leadership, Canrill has grown into a 100+ person company which is renowned in both China and overseas for its precision lighting machine optics.
Senior optical designer with 10+ years' experience in the design and inspection of telecentric lenses and precision lighting systems for machine vision and automotive parts gauging applications.
15+ years' experience in mechanical design for precision optical instruments and lighting machine integration systems, overseeing the structural engineering of Canrill's full product portfolio.
Our quality management system and product compliance certifications underpin the trust of automotive OEMs and Tier-1 suppliers worldwide.
Canrill ISO 9001
Lens Cone RoHS Certificate 1
Lens Cone RoHS Certificate 2
Lens Cone RoHS Certificate 3
Lens Cone RoHS Certificate
Explore our full portfolio of telecentric lenses and machine vision optics engineered for the highest-precision automotive inspection and dimensional gauging applications.