Lentes para óculos feitas para qualquer condição

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Lentes para óculos feitas para qualquer condição

Mensagem por amandio » 28 jul 2016 07:36

Não querendo fazer aqui qualquer tipo de publicidade sobre esta ou aquela marca, há no mercado um tipo de lentes feito para quem conduz.

Chama-se ZEISS DriveSafe Lenses, e o que faz essencialmente é reduzir a o brilho (especialmente à noite) para que os nossos olhos melhor se adaptem às condições de luz natural ou artificial.

Aqui fica o artigo da página oficial:

New – ZEISS DriveSafe Lenses.
One pair of glasses for everyday use and safer driving.

Many people feel insecure, uncomfortable and stressed when driving, especially in difficult light and weather conditions such as rain and mist, or at dusk or night. On average 83% of spectacle lens wearers* also drive. Driving can be a real challenge for everybody – no matter how long the distance, and good vision is vital for safety.
With ZEISS DriveSafe Lenses, ZEISS is introducing a new lens product category for everyday use. It is specifically designed to meet the vision needs of people who want to feel safer and more comfortable when driving with their everyday lenses.
ZEISS DriveSafe Lenses are available in both single vision and progressive lens types.
* Source: Market research study with 36 ECPs and 480 consumers in the US and Germany/August 2013

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1// Better vision in low light conditions.
Luminance Design® Technology by ZEISS.
The challenge
The pupil reacts to light intensity from its surroundings, specifically the light that directly strikes the eye. In daylight conditions, the pupil diameter is small, whereas it is large at night. In low light, so-called mesopic conditions, i.e. twilight, rainfall, dark days or night driving, the pupil diameter is in-between small and large. Space perception, as well as distance assessment, becomes more difficult for the driver.

After intensive research in the field of mesopic vision, the rationale for the development of ZEISS Luminance Design™ Technology was identified and verified during wearer trials. In a nutshell: there is bright light (photopic vision), no light (scotopic vision) and in-between low light (mesopic vision). In mesopic conditions, the light intensity, and thus the pupil size changes: a challenge for visual performance.

2// Reduced glare at night.
DuraVision® DriveSafe Coating by ZEISS.
The challenge
Glare describes the difficulty of seeing in bright light, such as direct sunlight or artificial light. Market research and scientific evidence both indicate that perceived glare in traffic is linked in particular to LED and Xenon HID light sources as used in modern car lighting technology. Intense glare can be a risk, as it reduces the visibility of objects and sensitivity of the eye to contrast. Glare also can be subjectively perceived as discomfort and irritation.

ZEISS vision science researchers carried out glare experiments. These formed the basis of internal studies using different coating simulations. Scientific evidence shows that the blueish, high-energy part of the visible spectrum (in particular in the 440–470 nm range) using LED or Xenon H.I.D. (High Intensity Discharge) technology is linked to a glare effect perceived by drivers.

3// Accurate vision of road, dashboard and mirrors.
ZEISS DriveSafe Lens Design.
The challenge
Driving demands a high level of concentration from drivers. Most of the time they need a broad view of the road in order to evaluate traffic conditions. The situation becomes challenging, especially for progressive lens wearers, when they need to switch their focus between the road, dashboard and mirrors. That is when dynamic vision becomes essential.

Fonte: Zeiss
Amândio de Aveiro
(da Madeira, que já esteve em Oeiras e agora em Oslo)
R1150 GS [2002-2013]


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