Expose Curved Barrier Filter Yellow
The Expose Curved Barrier Filter – Yellow from Laser Innovations Ltd is a precision optical tool, expertly crafted to enhance ridge detail and clarity in forensic photography. Optimised for use with blue laser sources and alternate light sources between 315–460 nm, this long-pass polycarbonate filter blocks unwanted excitation light and transmits only the longer-wavelength fluorescence emitted by trace evidence.
Key Features:
- Optimised for Blue Excitation (315–460 nm): Ideal with blue lasers for maximal contrast enhancement.
- Curved Barrier Design: Counteracts Gaussian roll-off, ensuring sharper ridge detail even off-axis.
- High Optical Density (OD 5+): Blocks excitation light effectively for clear, accurate imaging.
- Polycarbonate Construction: Lightweight yet impact resistant—perfect for field and lab use.
Applications:
- Capturing latent fingerprints under blue laser illumination
- Enhancing fluorescence from biological stains, bone fragments, bruises, hairs, and fibres
- Crime scene documentation and lab imaging support
- Non-DNA-contact forensic photography setups
For demonstrations, purchasing, or to order specific thread sizes, please contact Laser Innovations Ltd.




