COATING PROCESS GUIDECHOOSE THE OPTIONS AND PERFORMANCE YOU WANT

Optical Manufacturing Solutions.

Hard Coating - scratch resistance Lens

AR Coating Stackoptical properties (transmission, selective light filtering); scratch resistance

Top Coat repels oil; easy cleaning

WHAT DOES IT TAKE?

The performance and durability of an ophthal-mic lens is largely determined by the applied coating package. Satisloh offers a wide variety of durable hard coatings, innovative AR coating stacks, and state-of-the-art top coating solu-tions. This allows us to meet the needs of every production environment and every customer. The combination of these three components af-fects cost, process complexity and performance of the coating package and must match lab and customer requirements.

Beyond regular AR coating stacks, customers can select specialty coatings that protect from UV radiation and harmful Blue Light as well as multiple mirror and in-chamber tinting coatings.

No matter which processes are chosen, Satis-loh’s expansive knowledge regarding equip-ment, processes, and matching consumables ensures the ultimate in coating quality.

HARD COAT + AR STACK + TOP COAT = AR LENSES YOU WANT

DECISION #1: HARD COATING

Leading scratch resistance technology.Choosing the right hard coating is key for optimal AR coating performance. Satisloh provides perfectly matching hard coatings to achieve highest AR adhesion and scratch resistance.

THERMAL DIP COATING

Dip coating is the right choice for labs that need to coat both sides of uncoated lenses and expect maximum scratch resis-tance and uniform performance on front and back.

It is the most economical solution for high volumelabs that are able to coat in batches.

Spin Coating is the right choice for labs that want less complex production and a low investment with the highest process speed and the option to fully automate their hard coating process.

Using the new solvent based, non-tintable chemistry, labs can achieve extremely high scratch-resistance previously not possible with spin coating technology.

Spin CoatingAll Solids

Spin CoatingSolvent Based Dip Coating

Scratch Resistance ●●●○○ ●●●●○ ●●●●●

Tintability ●●●●○ ●●○○○ 1) ○○○○○1)

Index Match ●●○○○ ●●○○○ ●●●●○

Cycle Time 45-60 seconds 45-60 seconds 2-3 hours

Process Type Single piece flow Single piece flow Batch

Lacquer cost $$ $$$ $-$$$$ 2)

Investment (facility & equipment) $ $ $$$$

1) substrate can be tinted prior to hard coating2) volume dependent

HARD COATING PROCESSES

UV SPIN COATING

Hard CoatingLens

Adhesion Layer

AR Coating Stack

Antistatic LayerHydrophobic Topcoat

Legend of coating layers Example for all possible Coatings

Premium Performance Classic Multicote X

Lens material Organic Organic / Glass Organic Glass

Bayer value 1) 7-12 5-7 2-5 N/A

Anti-static layer Yes No No No

Cycle Time 25-45 min 23-43 min 27-29 min 51 min

Machines 1200-DLX-2MC-380-XMC-280-X

1200-DLX-2MC-380-XMC-280-X

1200-DLX-2MC-380-X

1200-DLX-2MC-380-XMC-280-X

1)AbrasionresistanceasdefinedbyBayerRatio.ValidONLYforfreshlyARcoatedlenseswithSatislohlacquerDT1500orDN1601(BayerRatio≥3)

* Satisloh‘s most advanced AR coating stack „Ultimate“ is available in the Ultimate coating package as described on page 7/8

STANDARD AR COATING PROCESSES*

Cutting-edge vacuum technology.Satisloh has 50 years of experience developing AR coating stack designs. With increasing sophistication and control-lability of vacuum chambers, it was possible to develop new and unique coatings with specific hardness, residual reflection, transmission, and other performance attributes.

DECISION #2: AR STACK

SPECIALIZED COATING STACKS

MIRROR COATING PROCESSES

Spectraflex X / -UV

• Dielectric mirror coating - Reflection colors: blue, red, orange, violet, green, silver, gold. - Solid mirrors, gradient mirrors, bi-color mirrors with sharp or gradient transitions. - Custom colors and custom color combinations possible.

• UV version: front side Spectraflex; back side Protect -UV. Highly recommended for sunglasses because of dilated pupils of the sunglass wearer.

Available for 1200-DLX-2, MC-380-X and MC-280-X

• Organic and mineral lenses - Brown solid - Brown gradient - Grey solid - Grey gradient

• Mineral lenses only - Green solid

Various absorption levels available

Available for 1200-DLX-2, MC-380-X and MC-280-X

Protect-Blue Protect-UV Protect-Complete

Lens type Organic lenses (clear)

Organic lenses (clear and photochromic)

Organic lenses (clear and photochromic)

Benefits Front side Blue Light protection. Reduces negative effects from tablets, smartphones, LED TVs, monitors, etc.

Back side UV protection Front side Blue Light protection. Back side UV protection.

Available for 1200-DLX-2, MC-380-X and MC-280-X.

IN CHAMBER TINTING PROCESSES

HydrophobicWhen the first easy-care top coatings were introduced, they were referred to as hydrophobic top coatings. Hydro-phobic literally means “water-repellent”. The quality of a hydrophobic top coating is measured by the contact angle of a water drop on a lens. A higher contact angle (round-ness of the drop of water) indicates better hydrophobicity. Traditionally, hydrophobic coatings have water contact angles between 97-104°.

Super HydrophobicSuper hydrophobic top coatings have water contact anglesover 106°.

Super Hydro/OleophobicThe newest generation of top coatings has water contactangles over 110°, but even more importantly, also repels oil for example from human skin / fingerprints. This pro-perty is referred to as oleophobicity and ismeasured by the Dynamic Oil Contact Angle.

Cleanvac/AulonTraditional hydrophobic material with a water contact angleof 100 - 110°

SatinSuper hydrophobic/oleophobic material with a water contactangle 110 - 118° for maximum ease of cleaning.

All Satisloh top coating materials can be applied directly inside the AR vacuum chamber or in a separate vacuum chamber.

In addition, Satisloh offers convenient and cost efficient hydrophobic wipe-on solutions.

Phased Hydrophobic System: Grip*A sacrificial overcoat is applied on top of Satin. It solves the slippage problem and provides unmatched yields for edging super-hydrophobic lenses. Grip can be wiped off after edging.

* Grip is not available in all countries

TOP COATING OPTIONS SATISLOH TOP COATINGS

Ease-of-cleaning is one of the most important features of AR coated lenses for consumers. An AR without top coat-ing is rough and hydrophilic: attracting dirt and water it is difficult to clean. There are a number of options available to make AR coating easier to clean than ever before. Spe-cial chemicals are applied on top of the AR coating inside a vacuum chamber.

DECISION #3: TOP COATINGS

Adhesion Layer

AR Coating Stack

Weak BondSatin

Grip

Hard CoatingLens

Surface under Test

Contact Angle

SATISLOH ULTIMATE - OUR BEST COATING PACKAGE Combines our highest performing hard, AR, and hydropho-bic coatings for the best of all worlds.

Best Satisloh Hard Coating• DT1500 or DN1601 dip coating or U900 back side spin

coating (with approved front side factory HC)*• Specially developed for Ultimate AR stack• Available for all other Satisloh AR coatings as well• Available for most lens materials (CR39, high index,

polycarbonate)

+ Revolutionary AR Coating Stack • Ultimate high performance AR Stack • Requires DT1500, DN1601 or U900 (with approved front

side factory HC)*

+ Completely new way of applying hydrophobic coating• Satin super-hydrophobic with special Extended Life (EL)

treatment

*Additional hard coatings can be evaluated and approved by Satisloh via field acceptance protocol.

Highest Possible Abrasion Resistance

Our best hard coating plus newest AR stack plus best super hydrophobic means unequaled Bayer >12. Abrasion resis-tance exceeds the market benchmark by more than 50%. This outstanding hardness does not affect other coating charac-teristics such as thermal shock stability and environmental durability.

Antistatic

Antistatic property repels particles and dust, reducing the need for cleaning.

Easiest lenses to clean with highest contact angle and extended life

Satin’s ease of cleaning significantly exceeds the market benchmark as evidenced by the dynamic contact angle mea-surement. Special Extended Life (EL) treatment means that the hydrophobic layer remains effective much longer than the market benchmark, i.e. after a significantly larger number of dry wipe cleaning cycles (see graph “Slipperiness”).

Abra

sion

resis

tanc

e (A

rb. u

nits

)

020406080

100120140160180200

SatislohBenchmark

ABRASION RESISTANCEANTISTATIC

0

20

40

60

80

100

120

Stat

ic C

harg

e (A

rb. U

nits

)

CR39 AR Process Ultimate Process2000 4000 6000 8000 10000

No. of Strokes

Cont

act A

ngle

SatislohBenchmark

SLIPPERINESS OVER TIME

Sales ServicePhone: +1 262 255 6001 +1 262 255 6001Email: info.usa@satisloh.com service.usa@satisloh.comPhone: +49 (0) 6441 912 0 +49 (0) 6441 912 222Email: info.de@satisloh.com service.de@satisloh.comPhone: +852 27 56 7711 +852 27 56 7654Email: info.asia@satisloh.com service.asia@satisloh.comPhone: +55 (24) 2233 8600 +55 (24) 2233 8686Email: info.latam@satisloh.com servicio.latam@satisloh.com

© Satisloh / KH / Septem

ber 2019Subject to technical changes

Satisloh AGNeuhofstrasse 12CH - 6340 BaarSwitzerlandPhone: +41 (0) 41766 16 16Mail: info@satisloh.com

www.satisloh.com

North America

Europe

Asia

Middle & South America

CONTACT

SATISLOH ULTIMATE - OUR BEST COATING PACKAGE

Satisloh or Approved Factory Hard CoatingLensSatisloh Hard Coating

Adhesion Layer

AR Coating Stack

Strong Bond Feature (EL)Antistatic Layer

Satin Topcoat