The MFVTM Glasses of Briter VisionTM are not on yet the market.
Prototypes of these designs are in development.
Values and figures, found in this website, are for purpose of description only.
For technical data and specifications contact Briter Vision.
The MFV TM methodology, with its variations in numbers, profiles and light transmission coefficients of its filters, allows a vast combination of solutions. It is so flexible that a custom MFV TM pattern can be designed to improve vision and productivity in a specific activity.
For example, a life-guard doing his/her critical work on a sunny location, would benefit from sunglasses that would use the contour of the pool for a weak and brightening filter, and stronger filters for the rest of the scene. The result: the pool gets brighter and the surroundings, sometimes bright, disturbing and vision limiting, are de-emphasized by the higher density and darker filters.
Next described, are three MFV sunglasses designs: two for specific activities and one for general purposes.
A description of this MFV TM filter pattern is in the patent US 10,120,205.
You are on a boat. You are on an excursion to watch the wales migration. Suddenly a scream “Two whales west!”. You look in that direction. The sky is bright. The sea reflects the bright light. Vision is not optimal. You quickly wear your sunglasses. Everything gets darker and it’s more relaxing, bit vision is not better. Your frustration is noticed. Somebody speaks to you: “Want to see better? Try these sunglasses”. You thank the stranger and wear them.
The water near the boat gets dark, like with your sunglasses. The sky gets somewhat darker. But the water surface under the horizon line, where the wales are, is now brighter and the great animals emerge from the glare.
The filter pattern of “Briter Horizon TM” emphasizes and brightens the wide and central visual layer of the scene over the low and the high parts. It is designed for activities involving large features of interest like a body of water for a sailor or a sport field for a coach.
The three light transmissions coefficients (LTC) of the filters that control the brightness of the central, lower and higher sections of the landscape can go, for example, from a gentle (*1) to an aggressive (*1).
Very high differences in LTC values like (*1) highly brighten the central vision layer and darken the others, and are recommended only when the glasses are used for a task in a stationary mode, like a guard monitoring a body of water or a broadcaster of a game.
A description of this MFV TM filter pattern is in the patent US 10,120,205.
Sometimes one needs to minimize distractions and focus maximum attention on a small zone of the field of vision, like a target for a sportsman, or a prey for a hunter. On a sunny or bright day, “Briter Spot TM” reduces disturbances coming from all directions and especially if one is looking in the shade, it brightens the center of your vision.
A central oval-shaped filter lets through more light than the filter covering the lower grounds and much more than the one covering the upper visual field. The resulting effect feels like a flash light has been turned on and pointed to the center of one’s vision.
In our estimation, on a sunny day and looking into a shady place, a “Briter Spot TM “, with light transmissions coefficients of about (*1) and an oval central filter covering about (*1) of the scene, will brighten the center more than (*1) compared to common sunglasses. An aggressive (*1) filters set will go above (*1).
A description of this MFV TM filter pattern is in the patent US 10,120,205.
Your son just gave you a new pair of sunglasses. They feel different, as he said they would. When worn on a bright day, the sky and the sides of your vision get a little darker than with the old ones, but the view in the center gets a nice boost in brightness.
Nothing exceptional about these new glasses really, but now your old sunglasses feel inferior with that dark center.
And if you really need to watch something clearly, that bright center is a big help.
The central filter lets about (*1) more light through, thus brightening the main visual area. A lower trapezoidal filter allows a proper vision of the grounds. The rest of the lens is a light reducing (*1) transmission..