Coatings

Coatings

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Coatings

Perfect Lenses for a Better Life!

Table of Contents

COATINGS | GENERAL INFORMATION.......................................................4

C OATING P ACKAGES ........................................................................................... 4 E ASY C LEANING ................................................................................................. 4

COATINGS | LENS CARE ............................................................................5

C ARE R ECOMMENDATIONS ................................................................................... 5 T EMPERATURE RESILIENCE ................................................................................... 5

COATINGS | OPTIPLAS® O+ .......................................................................6

1. R EST - REFLEX OF 0.2% ............................................................................... 6 2. C OLOR AND CONTRAST RECOGNITION - S ENSITIVITY OF E YE ............................. 7 A DVANTAGES ..................................................................................................... 8

COATINGS | OPTIPLAS® DUAL+UV® ...........................................................9

A DVANTAGES ................................................................................................... 11

COATINGS | OPTIPLAS® BLUE CXUV® .......................................................12

A DVANTAGES ................................................................................................... 13

COATINGS | DIVERSE OPTIPLAS .......................................................... ® 14 O PTIPLAS ® M AX +............................................................................................. 14 O PTIPLAS ® I .M AX +........................................................................................... 14 O PTIPLAS ®SHA ............................................................................................... 15

COATINGS | DIVERSES............................................................................16

E DGING O PTIPLAS ® C OATINGS ........................................................................... 16 O VERVIEW F EATURES ........................................................................................ 17

COATINGS | ANTI-SLIPPAGE ...................................................................18

L ENS G RIP – THE BEST SOLUTION TO AVOID SLIPPAGE ........................................... 18 U SAGE RECOMMENDATIONS ............................................................................... 18 S TANDARD SOLUTIONS ...................................................................................... 18 Anti-torsion pad........................................................................................ 18 Protective layer ......................................................................................... 18

COATINGS | General information

Coating Packages

Lens coatings must combine sometimes contradicting features. They must protect lenses against:

• •

mechanical impact chemical impact

• •

thermal impact

dust & dirt

Optiswiss developed its own propietary special coating layer systems to meet those requirements. The design and interaction of these multiple layers ensure a long lifetime and brilliant performance.

Hard Coating - scratch resistance and

protection against abrasion

AR Coatings - minimize reflection

Anti-Static Coating

Hydrophobic Coating (Cleancoat)

Easy Cleaning Hydrophobic and oleophobic coatings guarantee easy cleaning. Key is the contact angle. Multiple coating layers with a higher contact angle show better results rejecting oil and water (lotus effect)

Advantages

• Significant reduction of glare • Contrast-enhancing • High transparency • Scrtach resistance and resilience • Concentration enhancing • More efficiency and precison while working or during leisure activities

COATINGS | Lens Care

Care Recommendations

• Use special lens cleaner and additionally with cold water

• Dry using a microfiber cleaning cloth

• Always store in a hard glass case to avoid scratches • Do not put glasses in your pocket, lenses could easily scratch • Avoid exposing lenses to extreme temperatures

Temperature resilience · Avoid exposing organic lenses to extreme temperatures or temperature differences. the durability of coatings could be negatively impacted.

· Average temperatures under 60°C should not impact lenses. Temperature impact differs

with different coatings, humidity, exposure time or possible surface damage.

· As a rule of thumb: Do not expose lenses to more than 80°C. It increases possible damage

to coatings. For example: These extreme temperatures can be reached in a sauna or on the

dashboard of a car.

· Because of different structures of lens and coating strong temperature swings can lead to

stress fractures of coatings. Due to these stress fractures coatings could peel off at a later

stage.

· No negative impact is known due to exposure to extreme cold temperatures.

COATINGS | Optiplas® O+

The first multiple coating package for brilliant and natural vision without a noticeable rest-reflex, Optiplas O+ features 2 innovations:

1. Rest-reflex of 0.2% for maximum brillance and transmission Optiswiss uses High Graduation Systems (HGS) for extremely high precision of the multilayer set-up. Result: Rest-reflex is reduced to a fantastic 0.2% - maximum brilliance and most natural vision.

Rest-reflex of

c OptiplasO+

0.2%

20

18

Rest-reflex

16

14

550

12

10

8

6

4

2

0 wavelength [nm]

COATINGS | Optiplas® O+

2. Color and contrast recognition - Sensitivity of Eye Our eyes react differently to colors and light intensity. Both parameters, color and brightness, trigger different reactions. This is caused by the different receptors.

The chart shows the pattern of light and color reception (Sensitivity of Eye). The eye is most sensitive at 560 nm during the daytime and at 530 nm at nightime.

Relative sensitivity go the eye during daylight.

100

75

l50

25

0

300

350

400

450

500

550

600

650

700

750

Wavelength [nm]

Optiplas O+ uses an especially developed technology: Sensitivity of Eye. Maximum attention optimizing layers was put on reflex-reducing results between 450 nm – 650 nm.

Advantages

Maximum Brillance rest-reflex of only 0.2%

Color and contrast perception using Sensitivity of Eye

Hydrophobic liquid repellent (Lotus effect)

Super-AR esthetic and comfort

Antistatic dust repellent

Oleophobic o il repellent

Scratch resistance l ong lifetime

COATINGS | Optiplas® Dual+UV®

The unique coating package, manufactured with the latest Dual+ UV® nano technology Optiplas® Dual+UV® is the perfect combination of durability and abrasion resistance - highest customer benefits.

Coating layer design frontside

Hyper hydrophobic protective layer

Latest generation of nano technology

Anti-static coating

7 reflex reducing layers per side

Permadur (hard coating), excelllent

protection against scratches and abrasion

Coating layer design backside

Permadur (hard coating), excelllent protection against scratches and abrasion

7 reflex reducing layers per side

Anti-static coating UV protective coating Hyper-oleophobic coating latest generation nano technology

COATINGS | Optiplas® Dual+UV®

UV - reflex reduction

Optiplas® Dual+UV® has an additional UV protection coating on the backside of the lens

• UV light is reflected from the backside of the lens • Optiplas® Dual+UV® reduces this reflection significantly

Reflexion on backside of lens with Optiplas Dual +UV

20

18

16

14

12

Visible light

UV

10

8

6

4

2

0

380

300

350

400

450

500

550

600

650

700

750

Wavelength [nm]

COATINGS | Optiplas® Dual+UV®

Easy to clean lenses

Advantages

UV - protection reflex reduction

Scratch resistance long lifetime

Super-AR E sthetic and comfort

Hydrophobic liquid repellent

Anti-static dirt and dust repellent

Oleophobic oil and grease repellent

COATINGS | Optiplas® Blue CXUV®

Ideal combination of blue-light and UV reduction Optiplas® Blue - CX UV® protects against harmful blue light and increases contrast vision. Especially recommended for working with digital devices.

Optiplas® Blue - CX UV® relaxes the eyes avoiding eye strain and fatique.

• Blue-violett light reaches the front side of the lens • Optip las® Blue - CX UV® deflects this light significantly

COATINGS | Optiplas® Blue CXUV®

Reflexion on front of lens with Optiplas Blue-CX UV

20

18

16

14

12

10

8

6

4

2

0

300

350

400

450

500

550

600

650

700

750

Wavelength [nm]

Advantages

Scratch resistance long lifetime

Blue light protection light reduction

Super-AR esthetic and comfort

UV - protection light reduction

Oleophobic oil and grease repellent

Hydrophobic li quid repellent

Anti- static dust and dirt repellent

COATINGS | Diverse Optiplas

®

Optiplas® Max+

Optiplas® Max+ includes our Permadur hard coating, super broadband AR coating, anti- static and clean coat layers. Ist clean coat features hydrophobic and oleophobic caracteristics. Easy and gentle cleaning is guaranteed.

Wavelength with green rest-reflex

6

5

4

3

2

1

0

400

500

600

700

Wavelength [nm]

Optiplas® i.Max+

Optiplas® i.Max+ the first color neutral (achromatic) hydrophobic AR coating "Made in Switzerland". Optiplas® i.Max+ is based on Optiplas® Max+ coating system. The difference: color neutral rest- reflex [±1%].

Wavelength with no rest-reflex (achromatic)

6

5

4

3

2

1

0

400

500

600

700

Wellenlänge [nm]

COATINGS | Diverse Optiplas

Optiplas ®SHA Optiplas® SHA was developed together with the Institue of Physics of the University of Basel and Research and Development laboratory SATIS, the world leading manufacturer of coating equipment. Optiplas® SHA consists of 4 coatings: hard coating, multilayer super AR coating and a top coating for easy cleaning. It also includes a backside UV protective layer.

COATINGS | Diverses

Edging Optiplas® Coatings

Due to the hydrophobic andf oleophobic featutres lenses msut be edged using the following precautions:

Use of additional protective adhesive pads is necessary. Use additional pads on front and backside of lens. Lenses must be edged within a few hours after applying the pads. Otherwise residue of pads might stick to lenses. Do not use sharp or pointed objects to remove pads. Damage of lenses might occur. We recommend edging lenses with reduced feed rate. Best precaution to avoid axis slippage: use our contact spray Lens Grip.

COATINGS | Diverses

Overview Features

Optiplas

Features

Optiplas i.Max+

Optiplas SHA UV

Optiplas Dual+ UV

Optiplas Max+

Optiplas Blue-CX UV

O+

✓ ✓ ✓ ✓ ✓ ✓

Scratch resistance

High transmission

ü

ü

ü

ü

ü

Best layer adhesiveness

ü

ü

ü

ü

Long lifetime

–

Easy Clean coat

–

–

–

–

Hyper hydrophobic frontside

ü

ü

–

–

–

Hyper oleophobic backside

–

–

–

Anti-static coating

ü

ü

ü

ü

–

UV-protection on backside

–

–

–

*

G r e e n rest-reflex

ü

ü

ü

–

–

–

Color neutral rest-reflex

–

–

–

–

–

Blue rest-reflex

ü

–

–

–

–

–

COATINGS | Anti-Slippage

Lens Grip – the best solution to avoid slippage

Test result: 96 % of all lenses dir not show a single degree of slippage

25 cm

Usage recommendations Keep a distance of exactly 25 cm! Spray the lenses once with a fine mist. Create small droplets, not a solid coverage. Let dry for a minimum of 2 minutes. Now block and edge the lens. After de-blocking use water or denatured alcohol to clean the lens.

Standard solutions

Protective layer Lenses with a sealed surface were sometimes hard to measure the exact power.

Anti-torsion pad Test result: 41 % of lenses showed slippage between 1° and 4°.

Advantage

• Minimize slippage • Best adhesion and protection of surfaces • Easy re-edging • Lenses are treated after measuring - easy determination of exact power • Worry-free edging