From Passive Inspection to Active Intelligence: Optical Testing and Measurement are Redefining the Boundaries of Manufacturing

As advanced manufacturing continues to push toward extreme precision, the demands for fabrication accuracy and inspection of optical components have reached unprecedented heights. In response, optical testing and measurement technologies are undergoing a profound transformation. Whether it is the complex surface metrology of AR/VR optical waveguides, batch calibration of automotive-grade LiDAR, or sub-micron non-destructive inspection of TSV vias in advanced packaging, optical measurement and inspection equipment have become the indispensable "metric standard" for technological iteration and industrial deployment—deeply embedded across the entire value chain, from R&D to mass production. This September, the CIOE - Precision Optics Expo & Camera Expo will showcase the latest technological breakthroughs and industrial applications in this field. Industry leaders, innovators, and solution providers will demonstrate how next-generation optical testing is reshaping manufacturing capabilities and unlocking new possibilities across sectors. 

Freeform Optical Metrology: Breaking Through the Bottlenecks in High-Volume Production of Core Optical Components for Consumer Electronics and Smart Vehicles

In optical design, freeform surface technology delivers transformative value by transcending the limitations of traditional spherical and axisymmetric aspherical surfaces. By integrating multiple optical functions into a single element, freeform optics dramatically reduce system volume and weight while enhancing imaging quality. This breakthrough has positioned freeform optics as critical enablers in AR/VR headset waveguide couplers, LiDAR scanning prisms and receiver lenses, and high-end smartphone camera systems. However, high-precision manufacturing begins with high-precision measurement. Freeform surface accuracy has advanced from the sub-micron to the nanometer level, and these components often feature non-rotationally symmetric complex geometries. Traditional offline profilometers are time-consuming and struggle to keep pace with modern production cycles. Industry leaders are accelerating efforts to address these challenges. 

Hexagon has in recent years introduced automated inspection systems that integrate advanced optical measurement and robotics, covering a wide range from micro-precision to large-component inspection, offering flexible and configurable solutions for diverse manufacturing scenarios. 

CHOTEST has developed multiple optical measurement instruments now deployed in top-tier research institutions, and its fiber-optic laser ruler series, based on proprietary laser interferometry, supports closed-loop measurement for semiconductors and ultra-precision machining—marking significant progress in reducing import dependence and building an independent, controllable metrology value chain. 

Taylor Hobson continues to optimize efficiency in non-contact 3D optical measurement systems for freeform surface inspection, leveraging automation and intelligent features to enhance production-line inspection flow. This transforms high-precision measurement from a slow, expert-dependent task to a fast, line-ready calibration process.

Collectively, these technological achievements and practical applications are bridging the critical gap between laboratory prototypes and mass production of freeform optics, providing reliable quality assurance for emerging industries such as AR/VR and automotive LiDAR.

Industrial Intelligent Inspection: Installing Tireless Eyes for Intelligent Manufacturing

If freeform metrology addresses the high-precision shaping of individual optical components, industrial intelligent inspection tackles the quality challenges of entire production lines — from power batteries to automotive stampings, from optical lenses to electronic assemblies. The requirements of industrial production have long surpassed traditional machine vision. Inspection systems must be fast, accurate, and adaptable to complex materials, frequent product changeovers, and continuous operation in unmanned factories. This has driven the deep integration of optical measurement and AI, enabling inspection systems to evolve from seeing defects to understanding defects.

Panasonic, leveraging its deep expertise in high-precision optical measurement, continues to provide benchmark verification and quality control for ultra-precision machining scenarios such as high-end optics and V-groove components with its ultra-precision surface profilometer series. At the same time, it has expanded its production-line product portfolio, including laser displacement sensors, to play a key role across the entire high-end manufacturing process. 

DZ Optics, a provider of industrial lenses and optical imaging solutions, has been steadily advancing in machine vision and intelligent inspection, recently making progress in expanding its industrial lens product lines and securing multiple core patents. Its line-scan lenses and telecentric lenses are now used in lithium battery vision inspection and flat panel/glass defect screening, helping intelligent manufacturers accelerate the transition to fully automated quality control on the production line. With the continuous maturation of AI-powered image processing algorithms, optical inspection equipment is evolving from a standalone detection tool into a core data node in the process optimization feedback loop.

Semiconductor Optical Metrology: Building a Nanometer-Level Defense Line for Chip Yield

If industrial intelligent inspection identifies defects at the macro-production-line level, semiconductor optical metrology safeguards yield at the microscopic chip level—where every single process step in the chip world is critical. As fabrication processes advance to more sophisticated nodes, any nanoscale imperfection—surface particles, pattern defects, overlay errors, or micro-cracks—can render an entire batch of chips unusable. Optical inspection equipment, with its non-contact and high-throughput advantages, remains the most mainstream technical approach for front-end wafer defect detection and back-end advanced packaging metrology.

ZEISS, with its deep optical heritage, continues to empower the semiconductor value chain from masks and wafer inspection to packaging failure analysis, providing comprehensive solutions across the entire chip manufacturing process and actively aligning with industry standards to enhance both efficiency and reliability. 

Atometrics AM-8000 series white-light interferometer, featuring a high-speed, large-range nano-piezoelectric ceramic stage, proprietary SST+GAT algorithms, weak-light extraction algorithms, and one-click autofocus/leveling technology, enables rapid and efficient measurement of silicon photonic chips and high-speed devices with sub-nanometer precision. It quickly captures critical data such as micro-topography, step height, and surface roughness, supporting R&D and production processes. 

Bruker is accelerating the development of its photothermal infrared atomic force microscopy (AFM-IR) spectroscopy technology, expanding the application of nano-infrared spectroscopy from traditional nanoscale contaminant analysis to advanced semiconductor materials and device architecture research, providing critical chemical characterization capabilities for next-generation chip process development. 

Keyence continues to innovate in machine vision and automated optical inspection, with a growing portfolio of high-precision 3D scanning measurement and microscopy solutions, maintaining its industry leadership in inspection efficiency and intelligence. 

ideaoptics, specializing in spectroscopic measurement, has unveiled a next-generation front-end process inspection solution. Its ellipsometry technology demonstrates exceptional film-thickness measurement capabilities in critical processes such as etching and deposition, becoming an indispensable in-line monitoring tool for advanced manufacturing nodes. Meanwhile, capital market interest in the optical measurement sector continues to rise, with multiple M&A deals and financing rounds confirming that the strategic value of this field has been validated by both industry and investors. 

Optical Testing & Measurement Full-Chain Aggregation: From Components to Systems, All in One Place

China International Optoelectronic Exposition (CIOE), the premier one-stop platform for the global optoelectronics industry chain, will be held from September 9–11, 2026, at the Shenzhen World Exhibition & Convention Center. The CIOE - Precision Optics Expo & Camera Expo will prominently feature the latest achievements in optical testing and measurement, covering core sectors including optical measurement instruments, optical imaging systems, machine vision, and industrial automation. The exhibition will present a comprehensive technical capability spanning from optical materials and precision component processing to measurement equipment and software algorithms. Visitors will find nanoscale surface profiling solutions for complex optical elements such as freeform and aspherical surfaces, as well as AI-driven in-line vision inspection systems capable of real-time defect detection and classification, establishing an efficient technology-matching platform for industrial users and research institutions alike.

Featured Exhibitors: AcroBeam, ATOMETRICS, BLACK RIVER, Bruker, CHOTEST, Chengdu TYGGO, DZ Optics, Golden Way, Good Vision, Guangzhou Jinhua Precision Optics, Hangzhou ToupTek, HANHWA, Hexagon, ideaoptics, InterFero, Jinan Sensheng, Kefeng Optoelectronic, Keyence, Marposs, Mitutoyo, Motic, Optical Metrology, OTO Photonics, Panasonic, Phoskey, Shine Optics, Taylor Hobson, TRIOPTICS, Tuojie Photoelectric, Xiaogan Huazhong Precision Instrument, Xingqing Optical, Yuchuan Optics, ZC Optoelectronic, ZEISS, Zygo, and more.

*Listed in alphabetical order.

Concurrently, CIOE 2026 will feature the Optical Semiconductor Inspection Technology Forum, bringing together industry experts and corporate representatives to delve into AI-driven intelligent inspection solutions and high-speed, high-precision measurement practices for advanced processes and packaging. The forum aims to foster industry-academia-research collaboration and chart a new industrial path for semiconductor inspection from passive defect detection to active intelligent control. Moreover, the Meta-optical & Micro-nano Optical Manufacturing Technology Forum and the Optics Vacuum Coating Forum will explore cross-scale measurement solutions for meta/nano and ultra-precision manufacturing, as well as precision measurement and control of film layers in optical coating processes. 

Three Shows Under One Roof: Optical Testing & Measurement Evolves from Metric Standard to Value Enabler

From freeform optics to industrial intelligent inspection and semiconductor optical metrology, optical testing and measurement are shifting from passive quality verification to active process optimization. Measurement technologies are rapidly penetrating production lines with in-line, intelligent capabilities, transitioning quality management from end-of-line inspection to in-process control. Massive micro-topography data, combined with AI and edge computing, is forming a closed-loop cycle of design–manufacturing–inspection–correction. This precise, intelligent, and production-line-embedding measurement approach is advancing technology democratization across the manufacturing sector.

This year, China International Optoelectronic Exposition (CIOE) will be co-located with International Integrated Circuit Innovation Expo (IICIE) and Shenzhen International Electronics & Embedded Expo (elexcon), together spanning a total of 340,000 square meters show areas and featuring over 5,000 exhibitors. This comprehensive ecosystem covers optoelectronics, integrated circuits, and electronic systems. At CIOE, visitors can explore the full spectrum of optical testing solutions from freeform metrology to industrial intelligent inspection and semiconductor measurement. At IICIE, you will find complete semiconductor optical measurement solutions, including lithography overlay error measurement, film thickness inspection, TSV metrology for advanced packaging, bump coplanarity inspection, and non-destructive optical inspection of bonding quality. With three shows running concurrently, attendees can efficiently complete technology evaluation and business matching, truly bridging the last mile from inspection needs to solutions.

September 9–11, 2026 | Shenzhen World Exhibition & Convention Center
We look forward to witnessing the value evolution of optical testing and measurement with you.

>>> Register once for access to all three shows