Lens Technology

Safety lens materials and their properties

Polycarbonate (PC)

INFIELD polycarbonate lenses are characterized by their extremely high mechanical strength and are therefore ideally suited as safety lenses for protective eyewear. PC lenses are very light compared to mineral glass lenses and do not cause sparks on the surface of the lenses. However, protective lenses made of PC are less resistant to scratches and therefore should be used with a scratch-resistant coating (HC). In addition, a hard coat improves the protection against chemical influences.

Special material characteristics: PC was originally developed for applications within the aeronautics industry and has since been utilised, due to it’s properties, as an ideal material for safety eyewear. Basically PC is a very soft and tough plastic that is characterised by its high strength. Energy caused by the impact of foreign bodies is absorbed by the material upon contact which leads to a higher impact resistance compared to other plastic materials.

 

 


Polycarbonate lenses are available for plano safety eyewear as well as for prescription safety eyewear.

Acetate (AC)

Acetate (cellulose propionate) is a thermoplastic consisting of, among other things, natural cotton. INFIELD acetate lenses are very form-flexible and therefore ideal for the usage in full-view safety goggles. A special coating prevents the lens from fogging and ensures longer lasting clear vision.

Special material characteristics: Acetate is very resistant to most chemical substances used in medicine and industry. Thus safety goggles with acetate lenses are perfect to protect when working with acids and alkalis, bleachers and cleansers, oils, brines as well as hydrocarbons.

 


Acetate lenses are only available for plano safety eyewear.

Hard glass (mineral glass)

Protective lenses made of mineral glass are very resistant against scratches and are also characterised by high resistance to chemicals. Mineral glass is suitable for very dusty and sandy working environments. The high scratch resistance makes it easy to clean.

 


Hard glass lenses are available for plano safety eyewear as well as for prescription safety eyewear.

Trivex

Trivex as material for spectacle lenses is an innovative further development in the field of plastic spectacle lenses. It is ideally suited for work safety due to its material characteristics. TRIVEX offers the comfort of being particularly low weight whilst being extremely break-proof due to its very high mechanical impact and tensile strength. Regardless of the spectacle lens thickness, TRIVEX ensures an excellent optical quality providing clear and sharp vision without visual interference. Furthermore, spectacle lenses made of TRIVEX protect against harmful UV-radiation and are resistant to many chemicals and solvents.

 


Trivex lenses are only available for prescription safety eyewear.

ProCoat Coating Technology

ProCoat – optimal protection in all work situations

Our ProCoat coatings are based on many years’ experience developing products for personal protection equipment (PPE). Our problem-specific solutions for very hazardous situation.

ProCoat CLEAR HC – super scratch resistant

This special lacquer coating greatly enhances scratch-resistance on both surfaces of the lens. The hard layer also improves protection against chemical attack.

Areas of application: This coating is suitable for environments in which the safety spectacles need frequent cleaning. Dust and grit are just as easily removed as thin and viscous fluids.

 

 ProCoatCoating(s):Hard Coating
HCDesignation (abbreviation):

HC

ProCoat CLEAR AF AS – anti-fog, scratch-resistant, antistatic

This coating makes safety lens scratch-resistant, anti-fog and anti-static on both the inner and outer surfaces. In particular, a combination of anti-fog and anti-static effects ensures clear vision for long periods. The lens surfaces remain dirt-free for longer and are more easily cleaned.

Areas of application: This coating is suitable for work in constantly changing temperatures, when perspiration build-up is a problem and/or for activities in moist, warm and dusty environments.

 

ProCoatCoating(s):anti-foganti-static
CLEAR AF ASDesignation (abbreviation):

AF

AS

ProCoat CLEAR AFP – super scratch-resistant, super condensation-free, antistatic

The perfect coating combination of INFIELD ProCoat CLEAR HC and ProCoat CLEAR AF AS with enhanced scratch-resistance and anti-fog on both the inner and outer surfaces of the glasses. This improved anti-fog effect ensures that the glasses are fog resistant even with extreme temperature fluctuations. The enhanced scratch-resistance provides greater protection from external effects.

Areas of application: This coating is suitable for environments in which the safety spectacles need to be cleaned frequently. Dust and grit are just as easily removed as thin and viscous fluids. Additionally, this coating is suitable for work in constantly changing temperatures, when perspiration build-up is a problem and/or for activities in moist, warm and dusty environments.

 

ProCoatCoatings(s)Hard Coatinganti-foganti-static
CLEAR AFPDesignation (abbreviation):

HC

AF

AS

ProCoat CLEAR SAR – super anti-reflection

ProCoat CLEAR SAR eliminates practically all distracting reflections. Particularly in working environments where safety spectacles have to be worn under bright artificial light, this super anti-reflection effect helps prevent tired eyes and supports concentration. With their additional hard layer, safety lenses with ProCoat CLEAR SAR are also scratch and chemical-resistant.

Areas of application: This coating is particularly suited to production areas where safety spectacles have to be worn and to industrial environments with strong artificial light, e.g. assembly shops.

 

 

ProCoatCoating(s):super anti-reflex hard coating
CLEAR SARDesignation (abbreviation):

SAR

HC

Lens tints

ProCoat tint designations are colour coatings on the surface of lenses. Lens tints without a ProCoat designation are coloured directly by the additives in the synthetic material.

CLEAR colourless
Available for lens material(s)Polycarbonate, acetateCLEAR colourless lenses are available in a number of designs with a range of coatings.INF-Scheibe-1-ProCoat-Clear
Standard EN 166, EN 170
UV-protectionUV 385
Optical quality class 1
Transmission91 to 96%
Lens designation 2C-1,2
CONTRAST amber
Available for lens material(s)PolycarbonateEnhanced contrast for work in low light conditions.INF-Scheibe-1-ProCoat-Amber
StandardEN 166, EN 170
UV protection UV 385
Optical quality class 1
Transmission89%
Lens designation 2 - 1,2
CONTRAST orange
Available for lens material(s)PolycarbonateEnhanced contrast + anti-dazzle protection for work in low light conditions in the open air.INF-Scheibe-1-ProCoat-Orange
StandardEN 166, EN 170
UV protectionUV 385
Optical quality class 1
Transmission47%
Lens designation 2 - 1,7
SUN Grey
Available for lens material(s)PolycarbonateAnti-glare protection in sunlightINF-Scheibe-1-ProCoat-SUN-Grau
StandardEN 166, EN 170, EN 172
UV protection UV 385
Optical quality class 1
Transmission23%
Lens designation 5-2,5
ProCoat MIRROR blue
Available for lens material(s)PolycarbonateProtection from extreme natural and artificial glare and dissipation of radiated heat.INF-Scheibe-1-ProCoat-MIRROR-blue
StandardEN 166, EN 170, EN 172
UV protectionUV 385
Optical quality class 1
Transmission20%
Lens designation 5-2,5
ProCoat MIRROR silver
Available for lens material(s)PolycarbonateProtection from extreme natural and artificial glare and dissipation of radiated heat.INF-Scheibe-1-ProCoat-MIRROR-silver
StandardEN 166, EN 170, EN 172
UV protection UV 385
Optical quality class 1
Transmission20%
Lens designation 5-2,5
ProCoat MIRROR light Gold
Available for lens material(s)PolycarbonateProtection from glare in varying light conditions INF-Scheibe-1-ProCoat-MIRROR-leicht-gold
StandardEN 166, EN 170, EN 172
UV protectionUV 385
Optical qualityclass 1
Transmission53%
Lens designation 5-1,7
ProCoat MIRROR red/brown
Available for lens material(s)PolycarbonateProtection from glare during sport and leisure activitiesINF-Scheibe-1-ProCoat-MIRROR-red-brown
StandardEN 166, EN 170, EN 172
UV protectionUV 400
Optical quality class 1
Transmission12%
Lens designation 2-3
ProCoat UV 400
Available for lens material(s)PolycarbonateProtection from high-level UV radiation and Blue-light stress, e. g. medical environments. INF-Scheibe-1-ProCoat-MIRROR-UV400
StandardEN 166, EN 170, EN 172
UV protection UV 400
Optical quality class 1
Transmission44%
Lens designation 2-1,7
INFRARED
Available for lens material(s)PolycarbonateProtection from Infrared radiation emitted from kilns and furnaces, for example.INF-Scheibe-1-ProCoat-Infrarot
StandardEN 166, EN 170, EN 171
UV protection UV 400
Optical quality class 1
Transmission55%
Lens designation 4-1,7
WELDING
Available for lens material(s)PolycarbonateA range of safety lenses for a variety of applications in welding operations. From welding to flame-cutting, 5 levels of welder protection are available.INF-Scheibe-1-ProCoat-WELDING
StandardEN 166, EN 169
UV protection UV 400
Optical quality class 1
Transmission1-43%
Lens designation 1,7/2/3/4/5/6
ProCoat PHOTOCHROMIC
Available for lens material(s)PolycarbonateSafety lenses with a self-activating filter, which quickly quickly Reduces glare from solar radiation. The variable auto-tint function makes safety spectacles with this coating suitable for frequent and rapidly changing light conditions.
StandardEN 166, EN 172
UV protectionUV 385
Optical quality class 1
Transmission12-82%
Lens designation 5-1,1

 

 

 

// select video element var vid = document.getElementById('v0'); //var vid = $('#v0')[0]; // jquery option // pause video on load vid.pause(); // alternative & optimized implementation thanks to http://codepen.io/daveroma/ window.onscroll = function(){ vid.currentTime = window.pageYOffset/400; };