- The “Blue Cut Prime” may not be available in some regions and or countries.
Please refer to your local provider for availabilities.
Screen light to
ease your eyes.
Blue light is blocked
by a light absorbing film.
Advanced blue light blocking coating that helps users look at things
naturally and look to be natural to others at the same time
Are you satisfied with conventional reflecting type blue light blocking coatings?
- I feel bothered when other people look at my eye areas
because the surface of the lens dazzles blue. - I feel bothered with flicker when the light
reflected on the back surface of the lens enters my eyes. - I feel bothered with unpleasant ghost,
which causes double vision by the double reflection of light coming from an oblique direction.
Resolve your troubles with the absorbing type!
Blue light is absorbed
and blocked.
Blue light is blocked by the light
absorbing layer newly developed
through the latest technology,
and light is made easy on the eyes.
Method of bocking bluelight
by turning the surface of the lens
into blue reflected light and thereby allowing only the wavelength of blue light to reflect
that looks natural
Reflected light is also green on the blue light blocking coating as is the case with general lenses.
absorbing type
Blue light blocking coating that absorbs and blocks blue light
Three advantages obtained from the change to the absorbing type
1Reduced glare by suppressing reflection on the surface
(reflecting type)
The lens surface dazzles blue by illumination, and I am bothered with the look of the lens.
(absorbing type)
The absorbing type, which suppresses reflection, causes less glare even when illumination is reflected on the lens surface, and maintains a natural look.
- *Reflectance on the front surface (spectral luminous efficacy) of a 1.6 plane plate (t= 2 mm), D65 light source, 2-degree field of view
Natural look with less glare
2Blue light reflected on the back surface is reduced, and so is flicker.
(reflecting type)
I am bothered by blue light reflected on the back surface of the lens.
(absorbing type)
Flicker is reduced by reducing blue light reflected on the back surface of the lens.
- *Reflectance at an incidence angle of 45° on a 1.60 plane plate (t = 2 mm): Average reflectance at 380 to 500 nm
- *The reflectance at an incidence angle of 45° was measured on the concave side using a plane plate sample and with the convex side sand-blasted and black-painted.
Comfortable field of vision with less flicker
3Unpleasant ghost, which cause double-reflected vision, is reduced.
On the conventional blue cut coating with strong reflection, particularly strong ghost occurs and causes double vision.
Reflection on both surfaces and ghost are reduced, there is no excessive light, and objects are clearly visible.
- *Reflectance on both surfaces (spectral luminous efficacy) of a 1.6 plane plate (t= 2 mm), D65 light source, 2-degree field of view
Objects look clear with less ghost.
Ghost on lens
Light double-reflected on the back and front surfaces of the lens reaches the eye and causes flicker or double vision.
Ghost is the phenomenon of flicker or double vision caused by light that passes through the lens and is reflected on the back surface and then on the front surface.
It is likely to occur outdoors during the nighttime, and occurs also on general lenses. Particularly strong ghost occurs on the conventional blue cut coating that causes strong reflection.
Dazzle and flicker are reduced by a blue light blocking effect.
Properties of blue light
Blue light is a type of light with a short wavelength of 380 to 500 nm. Among the types of visible light, blue light is the closest to ultraviolet rays and has strong energy. Thus, it gives rise to concerns about adverse effects on the eyes.
Since blue light is apt to collide with dust and moisture in the air and scatter, it induces dazzle and flicker and causes the contours of images to look blurring.
Blue light type
Much blue light is contained in light from LED displays for smartphones and personal computers among other digital devices.
Sunlight also radiates blue light with stronger energy. In addition, light reflected on the road surface contains much blue light.
Performance of Blue Cut Prime
Blue Cut Prime can effectively cut off not only ultraviolet rays but also blue light.
By blocking blue light, which is apt to reflect diffusely and has strong energy, objects will clearly look with accentuated contrast.
LUTINA will cut out light (HEV), and help protect the essential Lutein within the eyes by reducing the production of oxidative stress.
Blue Cut Prime, if combined with a LUTINA material, is effective in maintaining eye health and reducing dazzle at the same time. It can also block more blue light of sunlight by increasing the blue light cutoff rate.
- ※2 HEV・・・High Energy Violet light:400〜420nm(HEV does not indicate the entire wavelength range of blue light.)
Blue Cut Prime is provided with P-UV as a standard specification.
Ultraviolet rays from 360° are blocked.
- *The reflectance at an incidence angle of 45° on a 1.60 plane plate (t = 4 mm) is the value calculated by subtracting the average reflectance value at an incidence angle of 45° at a wavelength of 280 to 380 nm from 100.
Blue Cut Prime is recommended to:
- People who are bothered with glare on the surface of the lens, which occurred on the conventional blue cut coating
- People who are bothered with flicker on the back surface of the lens, which occurred on the conventional blue cut coating
- People who are bothered with double vision due to ghost, which occurred on the conventional blue cut coating
- People who use their smartphones or personal computers for a long time every day
- People who feel illumination light glaring in rooms etc.
- People who are sensitive not only to ultraviolet rays but also to the blue light of sunlight
- People who desire to maintain eye health and reduce dazzle at the same time
- *Tint orders can not be made.
Notes on use
- You may be bothered with light reflection or ghost images on the back surface of the lens.
- The lens looks slightly colored because a blue light blocking function is provided. In addition, the color may look different depending on the light source.
- Although this coating is designed to reduce dazzle and flicker by blue light, the effect is different among individuals.
- This product is a plastic lens but may break if it is exposed to an excessive impact.
- *All photos and illustrations are images. The reflection colors of lenses etc. are different from actual colors.
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