This simple, yet elegant system is ideal for accurate, repeatable measurements of optical filters, glass and ophthalmic lenses. We've combined our expertise in miniature spectrometers and accessories with experience as a manufacturer of precision optics to create a compact system for real-time transmittance measurement of ophthalmic lenses and other optical components.

The Ocean Thin Films Optical Transmittance Spectrophotometer (OTiS) is ideal for both in-line and in-lab applications where transmittance accuracy (to +/- 1.0%) and precision (+/- 0.1%) are critical. Common applications include measurement of optical coatings, windows and filters, and glass and plastic components.

About the System:
The OTiS covers 380-780 nm wavelength range and accepts samples from 10-150 nm in diameter and up to 10mm thickness. The system comprises several components:
• High-resolution miniature linear CCD-array spectrometer configured for 380-780 nm
• High-power, 20-watt tungsten halogen light source
• Fiber optic integrating sphere for collecting signal transmitted through the sample
• Optics for improved beam collimation and spectral sensitivity distribution
• Sample fixture (z-stabe) to hold sample in place and exclude ambient light
• Short optical fiber to channel signal from the integrating sphere to the spectrometer
• Customized lens transmittance and color calculation software.

CHARACTERISTICS
• Spectral Range:380-780 nm
• Detection:Miniature fiber optic spectrometer
• Light Source:High-Power tungsten halogen (360-2000 nm)
• Sample Collection:Fiber optic integrating sphere
• Color Calculations:CIE L*a*b* color characteristics
• Measurement calibration:Manual calibration using known filter standard (not included);
calibration time <30 seconds
• System Calibration:Recommend annual recalibration
• Transmittance Calibration Standards:Available (contact an Application Scientist for details)
• Typical samples measured:Windows, filters, glass and plastic lenses
• Sample Size:10-150 mm diameter, up to 10 mm thickness
• Optical Stage:White powder-coated aluminum (optional black anodized aluminum version available)
• Software:Customized lens transmittance and color calculation software
• Quality:Calibration referenced to accepted standards
• Manufacturing compliance:CE/UL/RoHS/WEEE

PERFORMANCE
• Transmittance Measurement Accuracy:+/-1.0%
• Transmittance Measurement Precision:+/-0.1%
• Data Acquisition Time:<5.0 seconds
• Light Source Output:20 watts
• Light Source Stability:0.5% (~15 minutes to stabilize)
• Light Source Drift:<0.3% per hour
• Bulb Lifetime:2,000 hours
• Bulb Color Temperature:3,000 K
• Operating Temperature:5°C - 35°C
• Operating Humidity:5-95% at 40°C

COMPUTER & POWER REQUREMENTS:
• Operating Systems:Windows operating system
• Computer Interfaces:USB 2.0 @ 480 Mbps
• Power Requirements:100-240V, 50-60 Hz, 1.5A