Dear Reader,
Greetings from 3M Occupational Health and Environmental Safety Division, India!
As always, we thank you for the tremendous response to the earlier editions of the eWorkplace Challenge. This initiative has been well received
across all stakeholders of the occupational health and safety community, which inspires us to take this further and introduce you to the latest
technologies and practices in the field of occupational health and safety.
This issue features an article on “Eyewear Colour Reference Guide”. It is not just enough to wear a safety eyewear – but to wear the correct
safety eyewear as is required for the particular application. One of the parameters in choosing the correct safety eyewear is the lens colour of
the eyewear. Employees work in various work environments and exposed to different kinds of light. Thus it is imperative to wear an eyewear with
the correct lens colour.
Please read on to know more about the above subject. We hope you find this article interesting and informative.
We once again thank you for your interest and valuable feedback.
We look forward to your continued feedback / suggestions on the newsletter.
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Once again, we wish you and your family a safe and prosperous festive season ahead!
Regards,
From the Technical Desk
Vinay Pathak
3M Occupation Health and
Environmental Safety (OH&ES) Division
Work Safe
Work Better
EYEWEAR LENS COLOR REFERENCE GUIDE
For Industrial application purposes, this Lens Color Reference Guide will help you understand the functionality of “task-specific” lenses and how
to determine what type of lens is best for your application and environment. It is important to understand why there are more lens color options,
often necessary, than a Clear, Gray or Mirror lens. The basic rule of thumb for choosing a lens is to consider color opposites. Blue is opposite of
Yellow and Red is opposite of Green. Therefore, Red lenses will absorb Green light and Yellow Lenses will absorb Blue/Ultraviolet light, and vice
versa. Try on the different AOSafety lenses and learn for yourself the differences, functions and benefits of the different lens colors.
Y ellow/Contrast Amber Lens – absorbs Blue and Ultraviolet light
Use a Contrast Amber lens when sharpness, acuity and contrast are needed and to block high intensity blue lighting such as UV and
in Curing Operations. #1 Use is UV absorption.
• Filters out hazy light that is hard on the eyes (everything seems brighter)
• Good for working outside at Dawn and Dusk
• Good for hazy, overcast or foggy days (because of the blue/gray light, similar to the function of a fog light)
• Should not be used where protection from infrared radiation is required or for night time driving
Red/Vermilion Lens – absorbs some Green light
Sharpens visual acuity and provides a contrast similar to the Contrast Amber lens. Some people prefer the Vermilion to the Amber lens when
choosing a lens to sharpen visual acuity.
• Good for inspections because you can see defects better – circuit boards, miniature components, assembly items, etc.
• Filters out light that is hard on the eyes
• Not as good for outside at Dawn or Dusk as a Contrast Amber lens
Green/I.R. Shade Lens – blocks Red/Infrared (I.R.) light
Use any place where there is heat.
• Good for metal making, furnace work, trash incineration and open flames
• Protects against glare, ultraviolet and infrared radiations
• Available in Shade 3.0 or 5.0
Gray/Silver Mirror/Blue Mirror Lenses – reduce glare and bright light
Use to reduce glare and/or to decrease visible brightness
• Good for outdoor applications where a task specific lens is not required
• Can still recognize traffic and warning signals
Work Safe
Work Better
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