TIHOT Optics is a trusted OEM manufacturer of custom filter glass, delivering precision-cut optical filters for sensors, lasers, cameras, instruments, and biomedical systems. We provide fully tailored optical filter glass components based on your application needs, including shape, thickness, spectral range, and coating requirements. Whether you require UV, IR, visible, or bandpass filter glass, our engineering team ensures performance, quality, and global reliability.
What Is Filter Glass and Why Customize It?
properties of optical systems. Unlike interference filters, optical filter glass offers durable performance through intrinsic absorption characteristics, making it ideal for harsh environments, wide-angle systems, and thermal exposure.
Customizing your filter glass allows you to:
- Match precise transmission or blocking requirements
- Define custom dimensions, thicknesses, and shapes
- Integrate multiple optical functions (filtering + protection)
- Achieve high-volume consistency for OEM systems
Technical Specifications & Material Options
| Filter Type | Function / Band | Common Applications |
|---|---|---|
| UV Filter Glass | Blocks UV < 400 nm | Medical, sensors, protective optics |
| IR Filter Glass | Blocks IR > 700 nm | Security cameras, thermal systems |
| Bandpass Filters | Transmits a specific range only | Spectroscopy, fluorescence, photometry |
| Color Filter Glass | Selectively absorbs visible colors | Machine vision, LED lighting |
| ND Filter Glass | Reduces light intensity uniformly | Imaging, laser attenuation |
| Heat-Absorbing Glass | Blocks IR while passing visible | Projectors, light engines |
We can provide full transmission spectra and material datasheets on request.
Custom Processing Capabilities
e provide fully customized machining and finishing for optical filter glass, including:
- CNC precision cutting: Custom shapes (round, square, irregular)
- Thickness control: 0.3 mm to 10 mm, ±0.02 mm tolerance
- Edge processing: Ground, beveled, polished edges
- Surface quality: 60/40, 40/20 or better on request
- Flatness: Up to λ/4 for demanding optical systems
- Micro drilling and notching for filter holders and alignment features
Applications of Custom Filter Glass
Our filter glass is used in a wide range of optical systems and industries: