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Lens Tinting Equipment and Supplies
UV & Blue Light Analyzer
Recently, the blue/violet wavelengths between 400nm and 500nm have been implicated in the development of macular degeneration. BPI® has developed a simple meter that is designed to check the transmittance of lenses for these wavelengths and provide a figure of merit to use in comparing and producing lenses that protect patients from radiations in this wavelength range.
The BPI® UV & Blue Light Analyzer uses LED light sources centered at 400nm, 430nm, 470nm, 505nm and 525nm to evaluate lens transmission in these regions. The transmission percentage at each range is displayed along with the Wertheim Factor (patent pending), a figure of merit based on a comparison of the lens’ photopic transmission with its blocking ability for high-energy (blue/violet) wavelengths.
The meter also has caution indicating LEDs which indicate if the lens transmission is higher than that which would be provided by a linear drop in transmission with wavelength from its tV value down to zero in the UVA.
Air (no lens) lights all caution LEDs and has a Wertheim factor of “0”. A lens with high luminous transmission but minimal high energy blue/violet transmission such as BPI® Total Day has a Wertheim factor of “43”.
PC: 119518 (110v) • 219522 (220v)
The BPI® RGB Spectrometer is an invaluable aid for
matching the colors of tinted lenses or filters. It may also be used to check CIE or (L*,a*,b*) color coordinates. It also checks the upper UVA (350nm-400nm) transmission and provides filter level information. More precision is available from the BPI® Spectrometer. For color matching the RGB Spectrometer should be used with a personal computer running the Companion Program. The system power pack requires 115 Volts 50/60 Hz and is fuse protected by a 1 Amp, 250 V glass fuse. Components are UL and CSA recognized.
PC: 19508 (110v) • 219523 (220v)
Blue Light Filter Vision Tester™
Recently there has been increased interest in protecting the eye from harmful violet and blue light. Anti reflective coatings formulas have been altered to be less effective in this spectral region, reflecting back about 20 percent of the light there rather than allowing its full passage.
BPI® has recognized the need to protect the eye from short wavelength light for many years. Our Blue Barrier / Filter-Vision / Designed Spectrum 450, 500 and 540 absorptive tints were available in the last century. These tints absorb all (not just reflecting back 20%) of the harmful light of wavelengths shorter than 450nm, 500nm and 540nm, respectively, including UV light.
Blue/Violet light in general is a problem for the eye since it scatters more than other wavelengths, causing unwanted light “noise” within the eye. Reducing the spectral range of light entering the eye lens also cuts down on lens chromatic aberration. Age-related macular degeneration problems, which may be exacerbated by blue/violet light, have been mentioned more recently by Dr. Janet Sparrow, et al. in Optom Vis Sci. Jun 2011; 88(6): 759–765.
The BPI® Blue Light Filter Vision Tester is a blue/violet light source that demonstrates the effectiveness of a blue/violet light blocking lens. The intense blue light beams produced by the source are greatly attenuated by some lenses and the effect is readily observed when the lenses are placed between the source and your eye.
BPI® has introduced a new computer program,
the BPI® Lens Color Selector. This program enables
the user to alter the color of images to see how
they would appear if seen through tinted lenses.
The user may change that color until the image is
rendered as the user desires. The program will
then determine which standard tint colors most
closely approximate that which they selected.
are nature scenes, special purpose (skeet against
various backgrounds, for example), Ishihara color
blindness test images, other therapeutic related
images and much more. The user may upload images
of interest to them, to see what tinted lens color
would be beneficial in that situation.
The program will
also assist you in color matching of tinted lenses
to find standard colors which are similar to them.
Black High Index Lens Holder™
The BPI® High Index lens
holder comes from themakers of the
original and most popular BPI® lens
holders used in more than 40,000 labs
around the world.
It has sometimes been
observed that when tinting High Index
lenses a dark blotch is left on the lens
near the location of the lens holder’s
metal rods. This blotch is not present
when the metal rods are replaced with
This lens holder
tolerates the same tinting conditions as
the standard metal rod lens holder. Choose
from 23 other BPI® lens holder models.
The new black color high
index lens holder avoids discoloration
BPI® Mini ID
BPI® Mini ID Tech For
lens inspection and progressive lens mark
lightweight and uses battery power. It has a very
small footprint. The majority of progressive lens
manufacturers employ laser-etched molds to help
opticians identify the manufacturer, lens style
and add power of the lens . The BPI® Mini ID
Tech uses a multi-LED light source with a multiply
crossed Foucault knife edge pattern for improved
viewing of those marks.
Auto-Fill™ The BPI® Auto-Fill™ automatically adds water to
compensate for evaporation in your tinting
tanks. It is designed to top off the fluid
levels in the BPI® Turbo Tinter™ tanks.
The BPI® Auto-Fill holds a half gallon of water
which can be connected to up to four different
tanks. The fill nozzle includes a level sensor
to detect the fluid level in the tank. Fluid is
automatically added in small quantities to keep
the tank fluid level constant and at the same
Call for pricing and availability.
We have noticed
that the PLA plastic resin used in many 3D
printers is easily tintable using BPI Molecular
Catalytic Tints (available in 180 different
colors). This makes it easy to create plastic
parts in your 3D printer using only white or clear
plastic and then tint them to your favorite
colors, saving the trouble of changing plastic
source in the printer. ABS plastic may be less
suitable for tinting.
Note that BPI® tints are not FDA approved for food
and beverage use, although they do not contain
heavy metals or phthalates. These tints belong to
the same family as textile dyes used in clothing.
MSDS information available on this website.
We are often asked how to tint or color clear
plastic parts. BPI® tints have been used to color
many clear plastics, such as Acrylic (Plexiglas®),
Polycarbonate (Lexan®), CR-39® (plastic eyeglass
lens material), Nylon, Fiberglass, Mylar,
Cellulose Acetate Butyrate, Vinyl, some Silicones,
Epoxy, PET, PETE and many others. We have made
special tints for some of these materials, but
many of them can be colored using any of our
nearly 200 standard BPI® Molecular Catalytic™
Tints. Usually, these tints must be heated before
the color will enter the plastic part and the
color obtained depends on the type of plastic (or
the coating on the plastic!) and the temperature
of tinting. The results you would get for your
plastic parts can best be determined by testing
them with a heated multicomponent tint such as
BPI® Molecular Catalytic™ Black. Let us know what
plastics you have tried and what results you got!
BPI® is the
world’s largest manufacturer of optical tints that
are used by opticians, optometrists and
ophthalmologists in tinting, dying, or otherwise
coloring clear plastic – especially optical
sunglass lenses. BPI® also produces lines of
therapeutic tints providing UV protection and
aiding with problems such as blepharospasms,
headaches, retinitis pigmentosa, color blindness,
corneal dystrophys, macular degeneration, retinal
damage and dyslexia. BPI® has specialty tints such
as EVA for viewing computer monitors and Solar
Dyes for the finest sunglasses. BPI® also
manufactures laboratory equipment such as tinting
instruments, photometers, ultrasonic cleaners,
edgers (for edging lenses), gradient lensors (for
producing gradation of tint on lenses) and ovens
for heat and chemical tempering of glass lenses
for safety glasses and eyewear. BPI® supports all
optical lens and sunglass manufacturers and