ZEISS Sustainable Polyamide Sun Lenses

¨Sustainability focuses on meeting the needs of the present without compromising the ability of  future generations to meet their needs.¨

ZEISS develops, produces and distributes highly innovative solutions for industrial metrology and quality assurance, microscopy solutions for the life sciences and materials research, and medical technology solutions for diagnostics and treatment in ophthalmology and microsurgery.

The name ZEISS is also synonymous with the world’s leading lithography optics, which are used by the chip industry to manufacture semiconductor components. ZEISS branded products such as eyeglass lenses are popular, trendsetting products around the globe.

ZEISS Sunlens Sustainable Polyamide

From the raw material to the finished lens there are many manufacturing steps and many resources are used.ZEISS Sunlens offers a new approach to sun lenses production by introducing not only a sustainable lens material but a more sustainable production process. The whole chain is certified according to REDcert2 standard, to offer a truly sustainable polyamide lens.

This product entails a 39% substitution in the value chain of fossil based by bio-based raw materials made from agricultural and wood industry waste.

The carbon footprint of this lens has been reduced by 50% ccompared to a standard lens.
ZEISS Sunlens Sustainable Polyamide
Sustainable Polyamide Production Process

Sustainable Polyamide Production Process

The production process that ZEISS uses introduces more sustainable elements. This applies to many steps and phases. The bio-based raw materials used in the lens production value-chain comes from waste material from the wood and agricultural industries.

The bio-based material replacing the fossil material in the manufacturing chain of the lens did not result from the direct cultivation of an agricultural commodity and therefore neither competes for land use for food production nor creates potential deforestation problems. The renewable energy is certified via the purchase of renewable electricity with a Guarantee of Origins (GoOs) which guarantees that the electricity we purchase has been generated from a renewable source.

Renewable energy in the supply chain: our polyamide pellet supplier is also certified as a user of renewable electricity and heat for the manufacture of the polymers for the sun lenses. The overall new process produces less greenhouse emissions compared to the previous fully fossil resource-based manufacturing process.

Two main renewable factors contribute to the CO2 reduction of the manufactured lens:

1. The use of a mass balanced bio-based material, which roughly accounts for 10% of the emission reduction.
2. The purchase of renewable electricity, which accounts for a reduction of emissions of about 40%

About Mass Balance

The term “mass balance processes” means that bio-based materials and standard fossil- based materials are used in the same production process instead of being separated or segregated in two different production plants. The usage of bio-based material is accounted for and balanced through a system of verification and certification.

The ZEISS Sunlens sustainable polyamide follows the same process. The sustainable bio-based raw materials are mixed in upstream facilities with fossil-based raw materials and is then allocated downstream to the production of plano sun lenses.

Bio-based content is confirmed via on-site verification and the issue of certificates as it cannot be defined by the C14 method.
About Mass Balance
Lenses Features

Lenses Features

The features of the certified sustainable polyamide lenses supplied by ZEISS Sunlens and verified by the REDcert certification system are the following:

• 1: The carbon footprint of this lens has been reduced up to 50% compared to a fully fossil-based manufacturing process.

• 2: During the manufacture of this lens, 39% of fossil-fuel raw materials has been replaced in the value chain by bio-based waste materials.

• 3: The bio-based waste raw materials used in the manufacturing value chain of this lens come from waste from the wood and agricultural industries.

Responsibility At Zeiss

Responsibility is of key importance and has a long tradition at ZEISS where we have been implementing the stipulations on social responsibility anchored in our Foundation Statute for over 125 years.

These include environmental protection, social commitment, ethical behavior and sustainable improvements in the value chain.

Sustainability focuses on meeting the needs of the present without compromising the ability of future generations to meet their needs.
Responsibility At Zeiss


Product certificate number: REDcert²-951-34840521-P-0001

Site Certificate number for Carl Zeiss Vision Italia SpA: REDcert²-951-34840521

Certification System: REDcert2

Inspection service: Bureau Veritas
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