| Optical Wavelength | 360 to 1700 nm (customizable) |
| Transmittance (Light Transmittance) Range | 0 to 100% |
| Spectral Resolution | 5 nm |
| Wavelength Accuracy | ± 0.3 nm |
| Single Point Measurement Time | Up to 1.55 seconds |
| Transmittance Indication Error | Up to ±2% |
| Transmittance Measurement Repeatability | Up to 1% |
| Q Factor Indication Error | Up to 0.02 |
| Light Spot Diameter | 5 mm |
| Diopter Lens | Up to ±2D (1/M) |
| Lens TV Uniformity Calculation Band | 380 to 780 nm |
| Uniformity Test Area Diameter | 10 mm to 45 mm |
| Uniformity Test Position | Uniform dyeing (9 dots in a circle); step dyeing (9 dots in a square) |
| Voltage Power | AC 210 to 240 V, 50/60 Hz, 300 W |
Our Sunglasses Transmittance Tester LTRP-F12 is a high-precision device engineered to evaluate the light transmission properties of various lens types, including sunglasses, protective eyewear, contact lenses, and optical lenses.
Download catalog for
Sunglasses Transmittance Tester LTRP-F12 Catalog
Labtron offers a variety of Transmittance Testers with advanced spectral measurement options for fast full-spectrum transmittance analysis. They are compatible with professional measurement standards, allowing integration into regulated environments. Their automated workflows and software-controlled operations ensure efficient and repeatable testing processes. They are user-friendly, with intuitive features and customizable settings that suit diverse testing requirements. Our Testers are widely used in spectral transmittance analysis, optical component testing, and material characterization.








The Sunglasses Transmittance Tester LTRP-F12 offers a full-band test within the test area, enabling comprehensive optical evaluation of sunglass lenses. It provides a wide range of test parameters, including TV integral value, UV integral value, Q factor, CIE color limits, and Lab color space metrics. These parameters ensure conformity with international standards and allow precise assessment of lens clarity, protection level, and color accuracy.
The Sunglasses Transmittance Tester LTRP-F12 is designed with optional test interfaces that support a variety of eyewear, including single lenses, contact lenses, and finished sunglasses. It uses magnetic brackets that securely position the lenses for proper alignment and measurement accuracy. During testing, the device detects parameters such as lens center position, shape, and optical density, while also analyzing color distortion and visual comfort. The tester automatically calculates and records critical performance metrics like UV absorption, optical uniformity, and compliance indicators.
Yes, the Sunglasses Transmittance Tester LTRP-F12 features an advanced global preview interface for real-time display of all test parameters. It presents UV, TV, Q factor, and colorimetric values visually and numerically during the testing process, offering clear performance insight at a glance. This intuitive interface allows users to review, interpret, and export results with ease. The tester also supports auto-switching between international standards, automatically adjusting test protocols based on the lens type.
The Sunglasses Transmittance Tester LTRP-F12 complies with a broad range of international and regional standards, including ISO, GB, QB, EN, ANSI, CSA, and AS/NZS. It supports testing for optical lenses, sunglasses, driving glasses, protective glasses, and contact lenses according to specific country-based protocols. Standards such as ISO 8980-3:2003, EN ISO 12312-1:2013, ANSI Z80.3-2018, and AS/NZS 1067.1:2016 are integrated into the system. This ensures that the tester meets safety and optical quality requirements across global markets.
Our Sunglasses Transmittance Tester LTRP-F12 features an intuitive sample test setting interface that allows accurate lens alignment and bracket selection. It marks the lens test position and bracket layout, helping operators set samples quickly and correctly. This visual interface also displays spectral band selection, target light zone, and preset standard protocols. By supporting dynamic interface adjustment, the tester ensures a precise test setup for multiple lens types.
Post your question?
Our experts are here to help!
Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608