QOL improvement contribution valueDetails
Environmental contribution valueDetails
Do Green™
Material for eyeglass lenses
A lens made from plant-derived materials that help reduce greenhouse gas emissions
- Basic information
Overview
Made from plant-derived materials, this lens is designed to create a smaller carbon footprint than conventional petroleum-derived products.
Properties
Plant-derived materials
Based on LCA (Life Cycle Assessment), this material reduces greenhouse gas emissions by 14 % compared to conventional products based on petroleum-derived materials.*1
The resulting products are JORA- and USDA-certified biomass products.*2*3
Superior Optical Properties
This material allows the production of high-quality lenses with less distortion, with optical performance levels comparable to conventional products made from petroleum-derived materials.
Ultra-High Refractive Index
The extremely high refractive index of 1.74 allows the manufacture of much thinner and lighter lenses, even lenses with high corrective power.
*1 Based on our Life Cycle Assessment (LCA) procedure
*2 JORA certification: Biomass mark indicating certification by the Japan Organic Recycling Association of environmental products recycled from bio-based resources (biomass), which satisfies applicable quality regulations, standards, and criteria
*3 USDA certification: Biomass mark indicating certification by the United States Department of Agriculture of plant-derived products (USDA BioPreferred®)
List of Products
Do Green™ MR-174™ (R.I.: 1.74)
For MR-174™ specifications, see here.
*Development of products with R.I. of 1.60 is underway.
