Introducing the BPC300-C Photochromic Contact Lens Spectrophotometer
Bentham Instruments announces the launch of the BPC300-C Photochromic Contact Lens Spectrophotometer. This is a complete solution for the automatic characterization of photochromic (sun-darkening) prescription contact lenses. Multiple samples can be mounted in the temperature controlled water bath housing an automatic lens carousel. The samples are analyzed sequentially and automatically, resulting in machine readable files and human-readable PDF reports of the measured characteristics, including standards-prescribed photometric parameters for photochromic standards such as:
- ISO/ EN 8980-3:2013 – “Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods.”
- ISO/ EN 12312-1:2013 – “Eye and face protection. Sunglasses and related eyewear. Sunglasses for general use.”
- ANSI Z80.3: 2015 – “Non-prescription Sunglass and Fashion Eyewear Requirements.”
- AS/NZS 1067-2016 – “Sunglasses and fashion spectacles.”
Spectral and time-resolved transmittance/optical density measurements can be performed at various temperatures in darkness and under the intense irradiation of a nominally AM2 (but highly configurable) conditioning beam, which allows darkening and fading-back kinetic studies.
Full characterization sequences including preconditioning, faded spectral optical density measurements, darkening dynamics measurements, darkened spectral optical density measurements, fading dynamics measurements, and spectral optical density measurements after fading can all be performed sequentially on up to 6 samples without requiring user interaction.
To request more information or a quotation for this or other Bentham products, contact IL Photonics.