Ultra-Compact Micro Prisms with Versatile Geometries and High Transmission

Micro prisms are small optical prisms, usually ranging from micrometers to millimeters in size. They control light paths through precise bevel reflection or refraction, and are widely used in compact optical systems. Here’s what makes them special:

• Tiny size, easy to integrate: They’re usually 0.1mm-5mm in size—some even as small as micrometers. They fit easily into small devices like phones and sensors without taking up much space.
• High-precision light control: Angle tolerance can be within ±10 arcseconds, and surface roughness is Ra≤1nm. They accurately control beam direction (like 90° or 45° turns) or image adjustment with little path deviation.
• Versatile materials for different light: Made from materials like BK7 glass, fused silica, or sapphire, they work with light from ultraviolet (200nm) to infrared (10μm) and handle low to medium laser power.
• Stable in mass production: Made with precision molding or lithography, products in the same batch have high consistency (error < 2%), perfect for large-scale device integration.

Application

Consumer Electronics and Smart Devices

• AR/VR devices: Mini roof prisms correct light paths, making virtual images align with real scenes smoothly, reducing dizziness—great for compact glasses designs.

Medical and Bio-Optics

• Mini endoscopes: Micro prisms reflect light to transmit images through thin probes, letting doctors see tiny internal organs (like blood vessels or bronchi) with less trauma.
• Biosensors: Micro prisms work with fluorescence detection to focus weak biological signals (like cell fluorescence), boosting the sensitivity of rapid disease tests.

Industrial and Precision Testing

• Mini laser sensors: They turn laser beams in distance or displacement sensors, shrinking device size for tight installation on production lines.
• Chip testing equipment: Micro prism arrays reflect light paths to test multiple tiny chip solder points at once, speeding up semiconductor quality checks.

Optical Communication and IoT

• Mini optical modules: In small fiber-optic transceivers, micro prisms adjust light paths for efficient signal coupling, reducing module size.
• IoT sensors: They reflect infrared light for short-distance non-contact ranging, like gesture sensing in smart door locks or object detection in parcel lockers.

How to Choose

• Choose material for light type: Use BK7 glass for visible light (low cost). For UV or high-temperature environments, pick fused silica (handles UV and heat well). For high hardness (like industrial sensors), choose sapphire.
• Pick precision for your needs: Regular light path turns can use standard angle tolerance (≤30 arcseconds). For AR/VR or medical imaging, get high-precision (≤10 arcseconds) to avoid image distortion. Choose Ra≤1nm surface roughness for less light scattering.
• Adapt to environment: For humid environments (like medical devices), add anti-fog coatings. For vibrating scenes (like industrial sensors), use rigid materials and secure mounting. For high temperatures, avoid regular glass—choose quartz.