We have been opticians for three generations
in our family, and our activity is targeted on three areas, optometry,
contact lenses and optical instruments.
The eye-care
innovation 2011 – PhotoFusion®, the new self-tinting lenses by
ZEISS, reacts up to 20% faster* than existing photochromic lenses by ZEISS.
PhotoFusion® by ZEISS is ideal for everyone who wears spectacles and
especially for eyes which are sensitive to changing light. On the following
pages you can learn all about the many benefits of self-tinting lenses by
ZEISS. PhotoFusion® represents a further milestone in the history of
the visionary firm of ZEISS, a history going all the way back to 1846.
High
adjustment speed to changes in light conditions is therefore at the top of the
wish list for users of self tinting lenses, as shown by an extensive market
study commissioned by Carl Zeiss Vision. In the survey, which was carried out
in 2010 during spring and summer, 5,896 glasses wearers from Germany, Italy,
Great Britain, the USA, Brazil, Australia and China gave an exact profile of
their needs, preferences and opinions.
The study
revealed a significant level of interest in self-tinting lenses: 53% of all
glasses wearers knew about self-tinting lenses, while 20% were already using
them. 94% of the users said they would buy self-tinting lenses again.
The
photoactive colour molecules are complex chemical compounds that alter their
structure and form when exposed to UV light. The lens forms the matrix through
which the colour molecules are evenly distributed. When exposed to sunlight,
the photoactive colour molecules depart from their normal structure, opening up
and forming new bonds between moieties. This enables the colour molecules to
absorb light and tint the lens so that it becomes darker. At times and in
places where there is no UV radiation, like at night or indoors, the colour
molecules return to their original structure and the lens becomes clear. The
key factor required for the tinting to work properly is that the molecules have
sufficient space in the matrix to alter their form and structure quickly.
During development, we managed to find a matrix that perfectly accommodates the
colour molecules. This is the only way to ensure that they have enough space to
enable the lenses to tint and clear again very quickly when the light
conditions change.
PhotoFusion® byZEISS. Reacts from dark to clear in seconds.
The new self-tinting lenses by ZEISS read in seconds to changing light.
Up to 20% faster* than existing photochromic lenses by ZEISS.
1.
Fast reaction - for more convenience PhotoFusion lenses adapt quickly to changing light conditions. They react
up to 2x faster from dark to clearand up to 20% faster from clear to dark than
existing photochromic lenses byZEISS.
Average Performance. Performance will vary according TO materel. temperature
and light conditions.
2. Very dark and very clear -for Optimum vision Indoors, PhotoFusion lenses are very clear, while outside in the
sunshine the lenses turn very dark.
Clear
State: 92% T
Dark
State: 11% T
Average Performance. Performance will vary according to material. temperature
and light conditions. T=Transmission.
With AR coating.
3. 100% solar UV protection -for best protection PhotoFusion lenses offer 100% protection against solar UV rays up to 400
nm.
Ave rage Performance. Performance will vary according to material. temperature
and light conditions.
4. Strong durability - for long-lasting satisfaction
PhotoFusion lenses retain their Performance - for long-lasting satisfaction.
5. Excellent color consistency -for natural sight
PhotoFusion lenses demonstrate excellent color consistency.
Even though self-tinting lenses have been on the market for many years there
still are many features which could be improved.
What do consumers expect from the next generation of self-tinting lenses?
• Fast reaction to changing light conditions - for more convenience
• To be very clear indoors and very dark outside in the sunshine - fo
• To provideyour eyes with 100% protection against solar UV rays - for
Optimum protection and optimum vision
By improving these features, not only 20%. but up to 40%* of consumers
worldwide would consider buying the self-tinting lenses by ZEISS and 97%" State
that PhotoFusion is better than or equal to their old photochrome lenses.
PhotoFusion® byZEISS. Technology with a green
footprint.
With PhotoFusion*, ZEISS has not only succeeded in crealing a technical
Innovation, but also In developing a state-of-the-art technological method for
the productlon process. This environmentally sound technique allows us to fully
meet our ecological aspirations and objectives.
Low air and no water contamination
Little material tesidue No highly toxic materials Low solvent exposure
New curing techniques Use of low temperatures
Low carbon footprint
Efficient logistics
There is little material residue with only minimal air pollution and no water
contamination. In addition, no highly toxic materials are used and there is
only low exposure to solvents, preventing unnecessary pollution of the
atmosphere.
Our investment in new curing techniques and Systems are based on the use of low
temperatures and short throughput tlmes. ensuring energy is used very sparingly
and consumption reduced to a very low level.
Efficiency is also a top priority for our logistics processes: we have invested
a lot of energy into making all processes involved even more efficient with the
aim of saving on time, energy and packaging.
