With a global vision, the 2025 Changchun International Optoelectronic Expo · Light Conference (hereinafter referred to as the 2025 CCIOE) once again drew the world's attention by creating an international platform for exchange and cooperation, continuously deepening integration and development, building a high-level network of connectivity, and strengthening collaboration across industrial and supply chains.



Expanding its global circle of friends, upgrading its industrial showcase, and refining the collision of innovative ideas, CCIOE, with "global vision" embedded in its DNA, embraces the wave of global development in the optoelectronic industry with an increasingly open stance.

 

This year's lineup of foreign exhibitors was stronger than ever, with 27 foreign-invested companies participating, an increase of 14 from last year. Renowned companies such as Carl Zeiss, Ocean Optics, Trioptics, Universal Pictures, Benlong, Ametek, and Pickering Interfaces showcased cutting-edge technologies and scientific products in the field of optoelectronic information, providing new inspiration and opportunities for industrial development. The proportion of Fortune Global 500 and publicly listed companies significantly increased, underscoring the expo's strong magnetic appeal as a platform for international cooperation.

 

On the opening day, at the booth of Trioptics China, a subsidiary of Trioptics, precision instruments in blue and white were neatly arranged, while LED screens displayed real-time measurement data and dynamic imaging from their devices. At the front of the booth, a high-precision dynamic interferometer was generating four phase-shift interferograms from a single image capture, clearly presenting the surface appearance of optical components on the screen. On the other side of the booth, the electronic autocollimator demonstration area was buzzing with activity. A staff member was demonstrating how switching autocollimation objectives of different focal lengths could achieve a measurement accuracy of up to 0.05 microns. As a global leader in optical inspection with a 34-year history, Trioptics has been committed to measuring the boundaries of optoelectronic technology with a "precise eye", offering global clients the "standard answer" to optical inspection through innovative technology. In this exhibition, Trioptics showcased its newly developed electronic autocollimator and high-precision dynamic interferometer, both of which became highlights of the event.

 

Zhao Tianyuan, Sales Manager of Trioptics China, explained that the electronic autocollimator and high-precision dynamic interferometer on display were both "star products" of the company, with key advantages in modular design and traceability to international standards. "Traditional interferometers require multiple movements of the reference surface, but our algorithm optimization enables us to generate four interferograms from a single image capture, eliminating errors caused by mechanical vibration. This 'stationary' measurement technology was precisely what set Trioptics apart from its competitors." In Zhao's view, Changchun boasts strong scientific research institutions and remarkable synergy across the upstream and downstream of the industrial chain. They hoped to use the expo as a bridge to promote technology transformation and industrial upgrading in the future, so as to achieve complementary advantages for both sides.

 

As a leading player in the optical industry with nearly 180 years of history, Carl Zeiss made a striking appearance at the expo in Hall A1, showcasing its cutting-edge technologies and innovative products. The company built a high-tech stage featuring a futuristic light-and-shadow matrix to comprehensively display its innovations in semiconductor manufacturing technology, industrial quality and research, and the optical consumer market. Among the highlights was its 9157 device, which integrates high-end white-light measurement technology, with its white-light sensor achieving a resolution of 28 nanometers. It excels in measuring lens PV values, with an accuracy reaching 300 to 400 nanometers, filling the precision gap in traditional lithography lens production processes. Additionally, its contact measurement technology, with a top accuracy of 150 to 200 nanometers, provides strong support for optical lens development. The prism device on display represents the sixth-generation model, showing continuous technological iterations and leadership in the field.

 

"Having operated in Changchun for over a decade, we have walked countless paths of innovation together with local enterprises," said Zhu Xiaolong, Sales Manager at Carl Zeiss Shanghai Co., Ltd. His eyes brimmed with enthusiasm as he spoke of the company's ties with Changchun. According to Zhu, the company has always focused on product research and development, investing 10% of its annual revenue into R&D to meet the diverse and professional needs of its clients. "By participating in CCIOE, the 'super stage', we hope to deepen cooperation with local clients, inject new momentum into industrial development through our technological strengths, and journey together with Changchun into the vast future of the optoelectronic industry." Zhu expressed strong confidence in the company's future prospects.

 

During the expo, Carl Zeiss was not only an "exhibitor", but also a "driver" of industry progress. In multiple technical seminars and industrial summits, the company's experts engaged in lively exchanges with representatives from research institutions and enterprises. They shared cutting-edge industry trends and jointly analyzed the opportunities and challenges facing the sector. At the same time, the company actively sought to establish further partnerships with enterprises and research institutions to promote the broader application and innovation of optical technologies.

 

Complementing the active participation of foreign-invested enterprises, the 2025 CCIOE marked the first-ever synergy of three major events (the expo itself, the Academic Conference of the Chinese Optical Society, and the 2025 Light Conference). Notably, the 2025 Light Conference was jointly held with CCIOE for the first time, attracting nearly 1,000 experts from 26 countries, setting a new record for attendance.

 

The Academic Conference of the Chinese Optical Society, a top academic event in the field of optics in China, was also held concurrently with CCIOE at the same venue for the first time, drawing more than 2,000 domestic scholars to participate in over 20 academic seminars and creating a broad platform for academic exchanges and collision of ideas. A large number of experts, scholars, and business representatives from home and abroad gathered together to share valuable insights that may facilitate industrial development, marking a significant leap in the professional and international profile of the expo.

 

By deepening cooperation across industrial and supply chains and building a high-level network of connectivity, the 2025 CCIOE is transforming its "global vision" into tangible outcomes. The cutting-edge technologies brought by foreign-invested enterprises have complemented local research strengths; the synergy of three major events has built a bridge that connects basic research with industrial applications; and the expanding global circle of friends has positioned Changchun as a key hub for international cooperation in the optoelectronic industry.

 

Riding the momentum of the expo, Changchun is working to build 100-billion-yuan-scale optoelectronic information industry clusters, turning "Changchun Optoelectronic City" into a new signature of the city. The city is obtaining the leading strategic position in industrial development, setting its sights on new tracks for future growth, and prioritizing the cultivation of six major optoelectronic information industry clusters. It is harnessing the power of light to fuel dreams and foster new quality productive forces. A vision of high-quality development in the optoelectronic information industry is steadily unfolding across the fertile black land.