1.74 High Index Lenses Price in India

What are High Alphabetize Lenses?

High index lenses are made from a different course of plastic (know as the index). This allows lenses to exist fabricated thinner than ordinary standard plastic materials of a lower alphabetize.

Types Of High Index lenses:

In that location are three main loftier alphabetize lenses chosen:

1.60 High Alphabetize Lens
1.67 High Index Lens
1.74 High Index Lens

High index lenses are made of a plastic material which bends light more standard CR39 lenses. Information technology can therefore exist made thinner and lighter, assuasive for more cosmetically appealing and comfortable to wear glasses.

It'south worth noting that the numbers are but the names of the plastic and does not refer to the thickness of the lens as is often mistakenly causeless.

Standard lenses:

Standard or 'regular' lenses are made from a plastic known equally CR39 and accept a ane.five alphabetize. This is the type in which all inclusive frames are made with.

(This image shows the difference in thickness of a standard 1.v index lens & a 1.74 index lens - typically l% thinner)

High Index Lenses Comparison 2 - Online Opticians UK

How Much Practice High Index Lenses Cost?

High alphabetize lens prices:

Pick i: Thin = 1.60 High Index Lens Price - £35.00
Pick 2: Ultra Sparse = 1.67 Loftier Index Lens Price - £55.00
Option 3: Ultra, Ultra Thin = i.74 High Index Lens Price - £135.00

Generally speaking, the higher the index, the higher the price of the lenses; even so, the more you pay does mean your lenses will exist thinner and lighter.

Equally with most purchases in life, you get what you pay for and not all lenses are the same.

We offer many types of branded high alphabetize lenses from Essilor and Hoya to Zeiss and Kodak. All these brands are leaders in the optical industry and well-known for producing high-quality high index lenses and lens coatings.

Quite but, you will not detect better quality lenses.

Nosotros also include a free triple 'Anti Reflection, UV400 and Anti Scratch' Lens Coating worth £25.00 every bit standard making these lenses outstanding value:

And for peace for mind, we offer our double no hazard guarantees on all purchases:

"No Quibble 30 Day, 100% Money Dorsum Guarantee" and "2-Year Frame & Lens Warranty".

High Alphabetize Lenses Thickness Comparison:

i.60 Loftier Index Lenses are on average 20% thinner than ordinary CR39 plastic.
1.67 Loftier Alphabetize Lenses are on average 35% thinner than ordinary CR39 plastic.
1.74 High Index Lenses are on average fifty% thinner than ordinary CR39 plastic.

This example shows the difference in thickness for high index lenses.

High Index Lenses Thickness Comparisons

Different High Alphabetize Lens Options:

High Index lenses are available in nearly all lens types, materials, coatings and designs, such equally varifocal lenses , photochromic lenses and polarised lenses .

High Index Lens Benefits:

High Index Lenses Are Thinner:

High index lenses are much thinner due to their power to bend light.

As they bend calorie-free more than an ordinary lens they can be made much thinner just offer the same prescription power.

High Index Lenses Are Lighter:

As they can be fabricated thinner, they contain less lens material and are therefore much lighter than ordinary lenses.

These benefits will increment the higher the alphabetize lens option selected.

The more the lens bends light, the thinner and lighter information technology will be.

Our High Index Lenses Include Costless Coatings:

Anti Reflection Coating Glasses Features

With fewer reflections, more light passes through the lens to the eye for good vision and the lenses await more transparent and attractive.

Anti reflection blanket is especially benign when used on loftier-index lenses, which reflect more than calorie-free than regular plastic lenses.

Anti-reflective coatings permit 99.5 per cent of bachelor light to pass through the lenses and enter the centre for skillful vision.

By eliminating reflections, A/R coating also makes your eyeglass lenses look nearly invisible so people can encounter your eyes and facial expressions more clearly. Anti-reflective glasses also are more attractive, and then y'all can look your all-time in all lighting weather condition.

The visual benefits of lenses with anti-reflective blanket include sharper vision with less glare when driving at night and greater comfort during prolonged computer use (compared with wearing eyeglass lenses without AR coating).

How to buy loftier index lenses:

Buying high index lenses online is every bit simple as adding information technology to your lens options when choosing your lenses and is the quick, efficient and cheaper alternative to the high st

Delight don't hesitate to contact us should you crave any further information and one of our advisers will be happy to assist you in selecting the correct high index lens option for your prescription, lifestyle and budget.

Freephone:0800 690 6220

sales@onlineopticiansuk.com

Understanding Index of Refraction:

The index of refraction is the speed of lite in a vacuum divided by the speed of light in a textile.

The refractive index is the extent to which lite is refracted when it enters a medium. The greater the index the more refraction occurs. Air has an alphabetize of one.0, h2o is 1.3 and many type of drinking glass are around one.five.

College index lenses curve low-cal at a steeper angle than bottom alphabetize versions.

The 'index' is the upshot given as a number: ane.5,ane.half-dozen,1.67 or 1.74 and the higher the number, the more calorie-free is aptitude or 'slowed down'. Therefore, these lenses have less curvature for the aforementioned focal ability requiring less lens substance/material.

The result existence loftier index lenses are thinner than bottom versions but achieve the same focal power.

Further Information -

https://world wide web.zeiss.co.britain/vision-care/meliorate-vision/lifestyle-fashion/fashionably-sleek-highindex-lenses.html
https://www.nikon-lenswear.com.sg/products/details/nikon-low-cal-das
https://www.essilor.co.za/products/high-index-lenses
https://www.hoyavision.com/uk/discover-products/eye-intendance-professionals/lens-materials/ultra-high-index/