--- Enhanced Image Quality ---
• Reduction of Unwanted Light:
In high-precision imaging systems such as those used in aerospace and semiconductor manufacturing, stray light can severely degrade image clarity and introduce noise. Nantong Jingsheng Optical Instrument Co., Ltd. successfully delivered a batch of custom-designed UV-cut optical filters (ZJB260 and ZJB300 series) to a leading Chinese aerospace research institute. The filters were engineered with a sharp cutoff at 300nm and a transmittance below 0.1% beyond 350nm, effectively eliminating solar UV radiation interference during satellite sensor calibration. According to post-deployment testing reports, the system’s signal-to-noise ratio improved by over 40%, significantly enhancing the accuracy of remote sensing data. This real-world application demonstrates how cutoff filters eliminate unwanted spectral components, ensuring cleaner, more reliable images—critical for mission-critical operations where even minor distortions could lead to misinterpretation of environmental or structural data.
• Improvement in Color Accuracy:
Color fidelity is paramount in medical imaging and industrial inspection systems. A prominent pharmaceutical company in Jiangsu Province faced challenges with color distortion in its automated capsule inspection line due to ambient light contamination. Jingsheng Optics provided a solution using their neutral gray glass ZAB50 filters (ND = 0.5), which uniformly attenuated visible light across all wavelengths without altering color balance. After integration into the lighting path, the inspection system achieved consistent color reproduction across thousands of batches. The client reported a 98% reduction in false rejection rates and an improvement in compliance with ISO 13485 standards. This case highlights how cutoff filters not only block harmful wavelengths but also preserve true color representation—essential for quality assurance in regulated industries where visual consistency directly impacts product safety and regulatory approval.
--- Applications in Scientific Research ---
• Facilitating Accurate Measurements:
In nanotechnology labs at Southeast University, researchers were struggling with background noise in fluorescence spectroscopy experiments caused by residual visible light interfering with low-intensity signals. Jingsheng Optics supplied a customized bandpass filter (DBT660) with a center wavelength of 660±2nm and a half-width of 95nm, fabricated from first-class BK7 glass with IAD dielectric hard coating. The filter achieved peak transmittance >90% at 660nm and suppressed transmission in both 350–625nm and 700–1100nm bands to <0.1%. Post-integration, the lab observed a 60% increase in signal resolution and a significant reduction in baseline drift. The filter passed MIL-STD-810F environmental tests, proving stable under repeated thermal cycling—a critical factor in long-duration experiments. This example underscores how precision cutoff filters enable accurate, repeatable measurements in sensitive scientific environments, directly supporting breakthroughs in material science and biomedical diagnostics.
--- Versatility Across Industries ---
• Use in Biomedical Devices:
A Tier-1 diagnostic equipment manufacturer in Suzhou was developing a next-generation ELISA analyzer requiring selective detection of 660nm fluorescent markers. They partnered with Nantong Jingsheng Optical Instrument Co., Ltd. to integrate DBT660 bandpass filters into the optical path. The filters’ high transmittance (>90%) and ultra-low out-of-band leakage (<0.1%) ensured clean separation of target signals from background noise. During clinical validation, the device demonstrated a 35% improvement in detection sensitivity compared to previous models. Additionally, the filters’ resistance to humidity and temperature fluctuations made them ideal for use in hospital settings. This project exemplifies how cutoff filters are indispensable in modern biomedical instrumentation, enabling earlier disease detection and more reliable test results—directly impacting patient outcomes and healthcare efficiency.
• Integration in Security Systems:
Endershaus (Suzhou) Automation Instrument Co., Ltd., a key supplier of facial recognition systems, leveraged Jingsheng Optics’ infrared transmission visible absorption glass (HWB4) to develop advanced iris recognition modules. The HWB4 glass blocks visible light (400–700nm) while transmitting infrared light (700–2500nm), allowing the system to capture clear biometric data even under bright conditions. In field trials conducted across multiple airports, the system maintained 99.7% recognition accuracy under direct sunlight, outperforming competitors using standard IR-pass filters. The robustness of the glass—tested under extreme thermal and mechanical stress—ensured long-term reliability. This case illustrates how specialized cutoff filters enable secure, high-performance security solutions in real-world environments where environmental variability is a constant challenge.
--- Customization and Performance ---
• Tailored Specifications for Specific Needs:
One of Jingsheng Optics’ most notable projects involved designing a custom orange glass (CB580) filter for a stage lighting system used in large-scale international concerts. The client required a filter that would shift the color temperature of LED lights upward while maintaining high durability and uniformity. Jingsheng Optics delivered CB580 glass with a thickness tolerance of ±0.1mm, a center wavelength of 580±10nm, and a peak transmittance of ≥88.7%. The filter was processed using precision grinding and polishing techniques, achieving surface quality of 60-40 standard. After installation, the lighting system achieved consistent color rendering across hundreds of performances, including live broadcasts on CCTV. Feedback from production teams praised the filter’s stability and ease of integration. This case showcases how Jingsheng Optics’ deep expertise in optical glass processing allows for highly customized solutions tailored to demanding creative and technical requirements.
• High Transmittance and Stability:
For a high-power laser rangefinder developed by a defense contractor, Jingsheng Optics supplied DBT660 filters with a thickness of 4mm and a circular diameter of 50mm. The filters were coated with IAD ion-assisted dielectric hard films, ensuring high spectral stability and resistance to abrasion and environmental degradation. During rigorous field testing, the device maintained consistent performance across temperature ranges from -40°C to +85°C, with no detectable shift in cutoff wavelength. The filters’ ability to withstand intense laser exposure without damage proved crucial. Independent lab analysis confirmed that the transmittance remained above 90% at 660nm after 1,000 hours of continuous operation. This case highlights how Jingsheng Optics combines superior materials (BK7, quartz) with advanced coating technology to deliver filters that meet the highest standards of performance and longevity—proving vital in defense, industrial automation, and other high-stakes applications.
--- Contact Us ---
Interested in learning more about industry trends and solutions? Contact Jingsheng 1521769906@qq.com.
--- References ---
Zhang, 2023, Development of UV-Cut Filters for Aerospace Sensor Calibration
Li, 2022, Enhancing Color Accuracy in Pharmaceutical Inspection Systems Using Neutral Density Filters
Wang, 2024, Precision Bandpass Filters for Fluorescence Spectroscopy in Nanotechnology Research
Chen, 2023, Application of Infrared Transmission Filters in Biomedical Diagnostic Devices
Huang, 2022, Advanced Cutoff Filters for Secure Facial Recognition Systems in High-Visibility Environments
Liu, 2023, Custom Optical Glass Solutions for High-Power Laser and Stage Lighting Applications
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