An optical prism is a transparent polyhedral optical component with flat, polished surfaces arranged at precise angles. Prisms are widely used to redirect, deviate, invert, rotate, or disperse light within an optical system. By controlling the propagation path of light, prisms play a critical role in imaging, measurement, and beam-handling applications.
We manufacture a wide variety of prism types, including rectangular prisms, right-angle (diagonal) prisms, pentagonal prisms, and other custom geometries to meet specific optical and mechanical requirements.
Key Functions of Optical Prisms
- Beam Deviation & Redirection: Change the direction of light without altering image orientation (e.g., pentagonal prisms).
- Image Rotation & Inversion: Used in periscopes, binoculars, and telescopes to correct image orientation.
- Light Dispersion: Separate white light into its constituent wavelengths for spectral analysis.
- Beam Folding: Compact optical system layouts by folding the optical path.
- Precision Measurement: Enable accurate angle and alignment control in metrology instruments.
Typical Applications
- Imaging Systems: Cameras, projectors, telescopes, periscopes
- Optical Instruments: Measuring equipment, optical alignment devices
- Industrial & Scientific Use: Levels, gun sights, solar energy converters
- Biometric & Sensing Systems: Fingerprint readers
- Medical & Laser Equipment: Medical imaging instruments, laser treatment systems
Key Benefits
- High-Grade Raw Materials: Manufactured from premium optical materials to ensure stable performance.
- Excellent Surface Accuracy: Precision polishing delivers reliable optical quality and minimal wavefront distortion.
- Tight Manufacturing Tolerances: Small dimensional and angular errors for consistent system integration.
- High Clear Aperture: Maximizes usable optical area and transmission efficiency.
- Fully Customizable: Sizes, angles, materials, and surface quality can be tailored to your design.
Standard Product Specifications
| Parameter | Specification |
|---|---|
| Materials | Fused Silica, K9 (N-BK7 equivalent) |
| Size Tolerance | ±0.05 mm to ±0.20 mm |
| Angle Tolerance | 30″ to 3′ |
| Surface Flatness | 1/2 λ |
| Surface Quality | 40-20 to 80-50 |
| Clear Aperture | > 85% |
Custom materials, tighter tolerances, and special coatings are available upon request.
Usage Notes
- Proper prism selection depends on wavelength range, incident angle, and required beam manipulation.
- Anti-reflection or reflective coatings can be applied to optimize transmission or reflection efficiency.
- Custom prism designs are recommended for compact optical systems or specialized imaging paths.