The standard EN ISO 9873 for mouth mirrors and handles indicates 4.3.3. regular magnification,
which is between 2,8 and 3,3. This value will be calculated as follows:
Regular magnification = 250: focal distance in millimeters
For our mouth mirrors, we determine a regular magnification of 3,23.
The magnification depends on the vault of the glass and the distance of the mirror from the object.
As bigger the distance as bigger is the magnification. The magnification stops if the mirror image
turns upside down.
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High reflection and best image quality
The SEplus reflection layer with its double pure silver coating, generated in a high vacuum, guarantees an extreme high reflection. As a result the mirror image is of a bright and brilliant image quality.
High resistance against disinfection solvents
The SE plus silver coating is protected by a layer combination made of Copper/Titanium developed by our company, that ensures the extreme long life of our mouth mirrors by its high resistance against all types of disinfection and sterilization.
SEflex with flexible and flat stem
The ergonomically correct angle can be self-adjusted.
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Details
Best stability against corrosion
Hahnenkratt mouth mirrors are produced according to the norm ISO 9873 / EN 29873. Concerning Stainless Steel this norm refers to ISO 7153-1 (Surgical Instruments - Metallic materials). But also from Hahnenkratt experiences of more than 40 years we know, that the selected Stainless Steel is resistant against corrosion.
High resistance against methods of sterilisation
High sterilization temperatures have absolutely no effects on the quality of our mouth mirrors SE plus, FS Rhodium and MEGA.
High reflection and best image quality
High resistance against disinfection solutions
Ecologically friendly production technologies
There are still competitors advertising for their double galvanic reflection layer! Already in 1986 those galvanical technologies with their extremely problematical and environment harmfully results through Cyanid and copper, still used by several companies, have been replaced in our company through absolute Hightech.
Hahnenkratt have developed a production technology coating the glass with Silver or with Rhodium, by evaporating the precious metal on a physical way. This production process takes place in a closed system, without pollution of water or air.
Hahnenkratt uses their technical Know-how also for the care of the environment!
In high vacuum equipments with 2 x 10-6 mbar electron-ray-evaporating a complex structure of layers is created, whose reflecting layer consists of pure Rhodium. Rhodium is a precious metal such as Gold, but 2-3 times more expensive (stock exchange for Rhodium € 25,60 each Gramm / 08.07.2004).