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What are the applications of vacuum sealing units in the optical industry
source：www.cnkaihui.com | Release time：2026年10月12日1. AR/VR optical module (popular in consumer optics)
Optical waveguide module, Fresnel lens module, Pancake optical component, optical prism component vacuum sealing
Function: Transparent optical adhesive without bubble filling, preventing the occurrence of light spots, black spots, haze, and ghosting; Isolate water vapor, protect micro optical lenses and coupling structures, resist vibration and impact, and improve imaging consistency
2. Optical communication/silicon optical devices (data communication, IDC)
Optical modules, optical transceiver components, silicon optical PIC integrated chips, fiber coupling components, photodetectors, TO packaging auxiliary encapsulation
Function: Protect the coupling points of the optical path and eliminate the voids in the encapsulated colloid; Preventing water vapor intrusion from causing oxidation of lasers and photosensitive chips, ensuring stable high-speed optical signal transmission, commonly used in data centers and 5G/6G optical device production
3. Laser optical devices (industrial lasers, medical lasers)
Laser diode packaging, small laser cavity, laser collimation module, fiber laser coupling head, laser ranging module
Function: Transparent sealant filling, bubbles can cause local hotspots and laser scattering to burn out the device; Vacuum sealing reduces internal defects while insulating and conducting heat, suitable for marking, cutting, and medical beauty laser heads
4. LiDAR vehicle mounted optical sensor (autonomous driving)
Vehicle mounted LiDAR optical components, MEMS micro mirror module, receiving optical lens, optoelectronic conversion module
Function: Under wide temperature conditions, bubble free transparent adhesive protects the optical window and photosensitive chip; Resist vehicle vibration, high and low temperatures, salt spray, prevent internal fogging, and ensure distance measurement accuracy
5. Imaging optics, industrial vision, and machine vision
Industrial camera lens module, CMOS/CCD photosensitive component, code reader optical head, detection light source optical component
Function: Protect the joint area between the sensor and the lens, avoiding image speckle and contrast reduction caused by small bubbles; Moisture and dust resistant, suitable for visual inspection equipment in automated production lines
6. LED/COB optical packaging (illumination optics)
COB integrated light source, high-power floodlight, outdoor underwater lighting, stage light optical lens module
Function: High transparency organic silicon vacuum sealing, eliminating bubbles and atomization; Improve light efficiency, resist UV aging, outdoor/underwater optical protection, prevent light decay and spot deformation
7. Medical optical instruments
Endoscope optical components, optical sensing probes, medical detection optical paths, small surgical laser optical modules
Function: Using biocompatible transparent sealing materials, vacuum sealing eliminates small gaps, waterproof sealing, prevents body fluids and water vapor from corroding the optical surface, and meets medical reliability requirements
8. Optocouplers and photoelectric sensors
Photoelectric coupling, infrared tube, infrared temperature measurement optical probe, flame sensor optical component
Function: Vacuum sealing achieves no bubbles in the optical path, while also providing electrical insulation; Isolate the internal and external environment, enhance the stability of high, low, and high humidity environments
9. Aerospace and military optical components
Airborne and spaceborne optical detection components, low light detection devices, infrared optical modules
Function: Vacuum sealing reduces residual gas inside and avoids contamination of optical mirrors by gas release in space environments; Resistant to severe vibrations and temperature differences, ensuring long-term stability of the optical system
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