$66 STNGR Alpine Unbreakable Tactical Ballistic Outdoor Shooting S Sports Outdoors Sports Fitness Accessories STNGR Alpine New Free Shipping Unbreakable Tactical Shooting S Outdoor Ballistic Shooting,Unbreakable,Outdoor,www.coloradospacenews.com,Ballistic,Alpine,S,Sports Outdoors , Sports Fitness , Accessories,Tactical,$66,STNGR,/megalith664416.html Shooting,Unbreakable,Outdoor,www.coloradospacenews.com,Ballistic,Alpine,S,Sports Outdoors , Sports Fitness , Accessories,Tactical,$66,STNGR,/megalith664416.html STNGR Alpine New Free Shipping Unbreakable Tactical Shooting S Outdoor Ballistic $66 STNGR Alpine Unbreakable Tactical Ballistic Outdoor Shooting S Sports Outdoors Sports Fitness Accessories

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STNGR Alpine Unbreakable Tactical Ballistic Outdoor Shooting S


STNGR Alpine Unbreakable Tactical Ballistic Outdoor Shooting S


Product Description

Ultra durable outdoorsman sunglassesUltra durable outdoorsman sunglasses

Breaking The Rules...

We set out to create the ALPINE because like you, we were frustrated by the level of compromise in the eyewear industry. As outdoorsmen who regularly use and abuse gear in our pursuits, we were unable to find durable honestly priced sunglasses built to last, so we created our own. We cut out the artificial retail markups through our direct to consumer model to offer world class sunglasses at a radically fair cost.

Inspired by the rugged Himalayan Alpine region and purpose built to be uncompromising on all fronts, the ALPINE stealthily packs high impact eye protection, unmatched durability, razor sharp optics and its craftsmanship is backed for Life.

Alpine Sunglasses Ultra DurableAlpine Sunglasses Ultra Durable

Built For The Adventurer

The ALPINE's unique memory nylon construction and 110° hinge system provide unrivaled durability while the anti-slip adjustable nose pad allows you to achieve a fit so perfect, you'll forget you're wearing them. Our RAZR lens technology will change the way you see the world with vivid color amplification, enhanced color contrast and improved depth perception.

The high-impact shatterproof lenses provide crystal clear optical clarity with anti-scratch and anti-reflective coatings for a difference you can see.

Alpine Sunglasses Ultra DurableAlpine Sunglasses Ultra Durable

Live Without Compromise

The ALPINE makes no compromises with razor sharp optical clarity, extreme protection and durability with an exceptionally comfortable adjustable fit making it the best pair of sunglasses for your next adventure.

STNGR Sunglasses STNGR Sunglasses


STNGR Join the swarm ballistic sunglassesSTNGR Join the swarm ballistic sunglasses
"tbody" "th" Alpine Ballistic Sunglasses "th" Ridge Ballistic Sunglasses "th" Horizon Everyday Carry Lifestyle Sunglasses
STNGR Alpine Ballistic ANSI Z87.1+ Sunglasses STNGR Ridge Ballistic ANSI Z87.1+ Sunglasses STNGR Horizon EDC Everyday Carry Sunglasses with Next Gen Nose Pad
Key Feature The same rugged features as the Ridge with a smaller M/L fit. Comfortable under a hat, headset or earpro. The Ridge provides wrap-around ballistic protection in an extremely durable Memory Nylon frame. Super comfortable with razor sharp polarization. Made to solve the common problem with traditional Aviator sunglasses - the nose piece breaking. With its Next-Gen nose pad, the Horizon is extremely comfortable, durable and perfect for Everyday Carry use.
Polarized ✓ ✓ ✓
Shatterproof Lenses ✓ ✓ ✓
Ballistic ANSI Z87.1+ ✓ ✓
Frame Fit M/L L/XL M/L
100% UVA/UVB Protection ✓ ✓ ✓
Backed Lifetime Lifetime Lifetime

STNGR Alpine Unbreakable Tactical Ballistic Outdoor Shooting S


Featured Post


What Is Wavelength Standard? Advantages Of Wavelength Standards and Disadvantages of Material Standards

In the line and end standard , the working standard is derived by successive comparison of a physical standard. This may lead to an unaccept...

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In the line and end standard, the working standard is derived by successive comparison of a physical standard. This may lead to an unacceptable error of the standard itself. The dependency of working standard on physical standard is eliminated by using wavelength of monochromatic radiation as a natural and invariable unit of length. By doing so, the definition of standard length relative to the meter is expressed in terms of the accurately known wavelength of light.

Difference Between Line Standard and End Standard in Metrology

Read: Line Standard and End Standard of Measurement - Characteristics, Pros and Cons

Comparison between line standard and end standard is given below.

Line Standard

End Standard

Distance between two engraved lines is used for measurement.

Distance between two flat parallel surfaces is used for measurement.


Scale graduations marking are not subjected to wear.


End surfaces subjected to wear.

Quick and easy measurement.

Only one measurement at time. So, it is time consuming.


Limited accuracy of 0.2mm. It can’t use for close tolerance measurement.

High accuracy. Dimensional tolerance as close as 0.0005mm.


It does not has built in datum, so alignment with measurement axis difficult.

It has built in datum, so it is easy to align with measurement axis.


Parallax error can be occurred in measurement.

Not subjected to parallax error.


Its manufacture is simple and cost low.

Complex manufacturing process required. Cost is high.


Example: Meter scale, Yard, etc.

Example: Slip gauges, End bars, Gap gauges etc.



🔗Difference between material standard and wavelength standard

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Line Standard and End Standard of Measurement - Characteristics, Advantages and Disadvantages

What is line standard and end standard?

For accurate measurement, it is crucial to choose a suitable measuring device that suits the particular situation. There are mainly two methods for the measurement of distance. When the distance between two engraved lines is used for the measurement of length then it is called line standard or line measurement. They are used for direct length comparison, and they have no auxiliary devices. The most common line standard is the division marked meter rule.

Comparison Between Systematic Error and Random Error

🔗Systematic Error and Random Error in Metrology

The following table shows the difference between systematic error and random error

Systematic Error

Random Error

A replicable error that are consistently in same magnitude and direction.

Random in nature, magnitude and direction is unpredictable. It can be positive and negative.

Not easy to detect.

Easy to detect.

It can be assessed easily; statistical analysis not required.

Statistical analysis is required.

It cannot be eliminated by repeated measurement.

Can be eliminated by repeated measurement.

Characterization is not necessary.

Characterized by mean, standard deviation, and variance.

Routinely calibration of measuring instrument help to minimize the systematic error.

Calibration of measuring instruments does not affect random error.

Minimization of systematic error increase accuracy of measurement.

Minimization of random error increase repeatability.

Systematic Error and Random Error in Metrology and What Are the Reason for It

No matter how careful you are, there will always be an error in physical quantity measurement. This “error” is a part of measuring process. They are mainly classified into Systematic error and random error.

What is the systematic error in metrology?

The systematic error is defined as the type of error that deviates by a fixed amount from the true measurement. Systematic error is reproducible inaccuracy and that are consistently in the same direction. So, it cannot be eliminated by taking a large number of readings and then averaging them. But This type of error is controllable in both magnitude and direction, can be assessed and minimized by good analysis.