6.0mm UV-Fluorescent Inspection Videoscope with 365 nm High-Intensity Illumination

Product Overview

The Sugia OmniScope S2 is a purpose-built UV-fluorescence inspection videoscope, not a general-purpose instrument with a UV accessory. Every optical element — from the LED excitation source to the sensor’s Bayer filter array — is optimized for the specific requirements of fluorescent penetrant inspection (FPI) and fluorescent magnetic-particle inspection (FMPI) verification in aerospace and automotive manufacturing environments.

The illumination system uses a 24-element array of 365 nm UV-A LEDs with a 320–400 nm bandpass filter, delivering 4500 µW/cm² at a 25 mm working distance — exceeding the ASTM E1417 minimum requirement of 1000 µW/cm² for Type I fluorescent dye excitation by more than 4×. The LED array is driven by a constant-current controller with closed-loop optical feedback from an onboard UV photodiode, maintaining intensity within ±5% over the full battery discharge cycle.

The 1.0-megapixel CMOS sensor is fitted with a 420 nm long-pass emission filter that blocks reflected UV excitation while transmitting the 515–580 nm yellow-green emission band of Type I fluorescent dyes (sodium fluorescein / zinc sulfide based). The sensor’s Bayer filter array is tuned for enhanced green-channel quantum efficiency, providing a 2-stop effective sensitivity improvement for fluorescent-emission imaging compared to a standard white-light sensor with an add-on screw-in filter.

Key Engineering Features

• 24-Element 365 nm UV-A LED Array: 4500 µW/cm² at 25 mm; 320–400 nm bandpass excitation filter; closed-loop intensity control via onboard UV photodiode feedback maintains ±5% stability over battery discharge cycle.
• UV-Optimized Image Sensor: 420 nm long-pass emission filter bonded at the sensor package level (not a screw-on accessory); enhanced green-channel Bayer quantum efficiency; 2-stop effective sensitivity improvement for sodium-fluorescein emission band over general-purpose sensors.
• ASTM E1417 / ISO 3452 Compliance: UV intensity exceeds minimum requirement by >4×; includes field-verification UV-intensity target and fluorescent reference standard for pre-inspection system sensitivity verification.
• 4-Way Articulation for FPI Access: 150° TrueGlide articulation in all directions for navigating complex casting internal geometries where manual UV-lamp illumination cannot reach; enables direct viewing of internal fillets, thread roots, and cross-drilled intersections.
• Fluorescence-Optimized Image Processing: Proprietary signal-processing pipeline that applies adaptive contrast enhancement to the green channel with 3D noise reduction tuned for low-light fluorescent emission; produces inspection-grade still images with visible indication-to-background contrast ratios exceeding 3:1 at minimum detectable flaw sizes.

Technical Specifications

Parameter	Value
Probe Outer Diameter	6.0 mm
Insertion Tube Length	3.5 m
Articulation	4-way TrueGlide, 150° per axis
UV Illumination	24× LED, 365 nm peak, 320–400 nm filtered
UV Intensity	4500 µW/cm² at 25 mm working distance
Intensity Stability	±5% over battery discharge cycle
Emission Filter	420 nm long-pass, bonded at sensor level
Image Sensor	1/6-inch BSI CMOS, green-channel-enhanced Bayer
Effective Pixels	1280 × 960 (1.0 Megapixel)
Frame Rate	15 fps (optimized for low-light integration)
Field of View	70° diagonal
Depth of Field	8 mm – 80 mm
White-Light Mode	Included: switchable white LED ring for navigation/context imaging
Monitor	6.5-inch TFT LCD, 1280 × 960
Storage	SDHC UHS-I, up to 128 GB
Battery	7.4 V Li-ion, 48 Wh, ~2.5 h runtime
Ingress Protection	Probe IP67, main unit IP55
System Weight	3.1 kg

Target Applications

• Aerospace Engine FPI: Turbine-blade cooling-hole fluorescent-dye residual detection post-FPI processing; combustion-chamber liner weld-repair FPI verification; fan-blade dovetail-root fluorescent indication documentation on-wing.
• Aerospace Structural FPI: Landing-gear trunnion internal fillet fluorescent inspection after overhaul FPI processing; flap-track carriage internal surface FPI verification; engine-mount forging internal bore fluorescent inspection.
• Automotive Powertrain: Cylinder-head combustion-chamber face porosity FPI verification in high-performance engine manufacturing; crankshaft oil-galley internal fluorescent inspection; turbocharger turbine-housing casting internal surface FPI.
• Oil & Gas Equipment: Drill-pipe tool-joint thread-root fluorescent magnetic-particle inspection (FMPI) verification; wellhead component internal gallery FPI after re-certification machining; valve-body internal cavity fluorescent inspection per API 6A PSL requirements.