In the field of optical component manufacturing, the processing accuracy of filters directly affects the performance of end products. Especially for double-sided coated filters, the surface coating plays a crucial role in regulating the spectrum. Once scratches, chipping, or microcracks occur during the processing, it can lead to abnormal transmittance, increased stray light, and even the entire piece can be scrapped. Therefore, how to achieve high-precision and high consistency cutting while ensuring the integrity of the coating has become a key concern for many enterprises.
Cutting requirements:
The customer needs to perform circular cutting on a 1mm thick double-sided coated filter, with processing requirements including: no broken edges, no hidden cracks, no damage to the coating layer, and ensuring dimensional accuracy and batch consistency.
Solution:
Chuangkeda's "Infrared Picosecond Laser Glass Cutting Integrated Machine" uses a high-energy density picosecond laser source, combined with intelligent visual positioning and high-precision motion platform, to achieve non-contact processing with minimal thermal impact and no edge breakage during cutting. During the processing, laser energy is applied to the interior of the glass, forming a flat cross-section through the principle of cold cracking. The cutting edge can be directly assembled without the need for secondary polishing. For complex irregular paths, the equipment can operate accurately according to CAD drawings, ensuring the restoration of curves and angle heights. The cutting accuracy of the whole machine reaches ± 0.01mm, with excellent perpendicularity of the incision, edge breakage ≤ 5 μ m, and support for one-time molding of any shape; Equipped with an automated processing platform, it can achieve synchronous cutting of multiple pieces, significantly improving efficiency and providing a stable and efficient solution for high-end glass precision processing.
Cutting effect display:
• Processing material: 1mm double-sided coated filter
• Cutting accuracy: ± 0.01 mm
• Edge collapse control: ≤ 5 μ m, the cutting edge is flat and smooth, without any collapse or cracks, the cross-section is clean and transparent, the incision verticality is high, and the overall consistency is good
• Processing advantages: Curves, arcs, and irregular shapes are formed in one go, with natural and smooth transitions in details
• High batch consistency: The size and edge effect are highly uniform, with strong stability, meeting the requirements of precision assembly
