Name: ZYGO ZMI7705 Laser Head
Price: 2211 CNY
Availability: InStock

Description

Application Case of ZYGO ZMI7705 Interferometer

Project Background

A leading manufacturer of precision optical components was facing challenges in quality control during the production of high-precision lenses for automotive lidar systems. The key requirements for these lenses included ultra-high surface flatness (PV value ≤ 0.2λ) and low surface roughness (Ra ≤ 0.5 nm). Traditional inspection methods, such as contact profilometers, were inefficient, time-consuming, and risked damaging the lens surface. To address these pain points and improve production efficiency while ensuring product quality, the manufacturer sought a non-contact, high-precision optical measurement solution.

Solution Selection: ZYGO ZMI7705 Interferometer

After evaluating multiple optical measurement systems, the manufacturer selected the ZYGO ZMI7705 interferometer based on its outstanding performance and adaptability to industrial production environments. The ZMI7705 is a high-precision phase-shifting interferometer designed specifically for industrial quality control, featuring a measurement accuracy of up to 0.01λ (λ=632.8 nm), a large measurement field of view (up to 200 mm), and fast measurement speed (single measurement cycle ≤ 3 seconds). Additionally, its robust mechanical structure and anti-vibration design make it suitable for harsh factory floor conditions, ensuring stable and reliable measurement results.

Implementation Process

The implementation of the ZYGO ZMI7705 interferometer included three main phases: system integration, parameter calibration, and personnel training.

First, the ZMI7705 was integrated into the manufacturer’s existing production line, connected to the production management system (MES) to realize real-time data synchronization and traceability. Then, ZYGO’s technical team collaborated with the manufacturer’s engineers to calibrate the measurement parameters according to the specific requirements of the lidar lenses, including setting the measurement wavelength, defining the flatness and roughness evaluation criteria, and establishing automatic pass/fail judgment thresholds.

Finally, comprehensive training was provided to the production line operators, covering basic operation of the interferometer, data analysis, and routine maintenance. The intuitive user interface of the ZMI7705 simplified the operation process, allowing operators to master the measurement skills within a short period.

Application Effects

Since the deployment of the ZYGO ZMI7705 interferometer, the manufacturer has achieved significant improvements in both quality control and production efficiency:

– Improved Inspection Efficiency: The measurement time per lens was reduced from 15 minutes (contact method) to less than 3 seconds, increasing the inspection throughput by more than 90%. This effectively eliminated the bottleneck in the production line caused by inefficient quality inspection.

– Enhanced Measurement Accuracy: The non-contact measurement method avoided surface damage caused by contact inspection, while the high precision of the ZMI7705 ensured that even tiny surface defects (such as micro-waves and scratches) were detected. The pass rate of the lidar lenses increased from 85% to 98% after the implementation.

– Real-time Quality Control: The integration with the MES system enabled real-time monitoring of production quality data. When abnormal measurement results were detected, the system automatically alerted the operators and stopped the production process, preventing the flow of defective products to subsequent processes and reducing production costs.

ZYGO ZMI7705
ZMI 7705

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