Finding good polarized fishing sunglasses is not as simple as reading advertisements and looking for bargains. The technology behind these specialized lenses is fairly involved, being based on light and how it works. Understanding the subject involves basic physics and misleading marketing. For instance, taking on faith the claim that lenses work on both water and snow glare may lead you into error.
However, a basic understanding can help you select the right protective lenses for your purpose. Although many advertisements claim that fisherman lenses are also good for skiing and other snow sports, as well as for cycling, driving, and golfing, this may not be true. The old adage: 'buyer beware' holds true in this case.
There are great sites online that discuss the subject of natural light versus reflected beams, as well as the action of polarized glasses. Natural sunlight is 'scattered', or coming from many different directions. When it's reflected off a surface, it travels to your eyes in a much more direct way; this is referred to as glare. This direct light is more harmful to your eyes than natural, diffused sunlight.
The issue is complicated by the angle of light, so lenses that work great at ten o'clock AM and 4 o'clock PM may not do the same at dawn or high noon. The motion of the wearer's head can affect them, as well. For instance, sight might be improved by looking into the water at an angle rather than straight down, and it might be distorted when looking over the water at certain angles.
Water reflects light differently than snow does, but it bounces off a car hood in a similar manner to it's action on the water's surface. This is one reason why skiers might not want to use this sort of eye protection. Things far away may appear clearer and light will be blocked in general, but icy patches may not show up, causing a dangerous situation. Drivers may also find vision impaired under certain conditions, as might those trying to read digital instruments.
This whole topic might make an award-winning science fair project, being neither too easy or too hard to understand. If you'd rather just buy a good pair of fishing glasses, you might not need all this information. The fact that the right glasses filter out glare and make underwater objects easier to see may be all the knowledge you want.
In that case, you need to find a reputable manufacturer or depend on the advice of experienced fishermen. Magazines and online sites devoted to the sport may help. Your eye doctor might be able to give you sound counsel; perhaps he or she even fishes for fun. A good retailer will have customer reps who can answer questions when it's time to make a purchase.
However, if you really want to know, the internet has some fascinating articles. There's even a way to make sure that the lenses you have are really polarized - it involves looking at reflections in a certain way and then cocking your head and seeing if the image changes. Check it out; after all, knowledge is power, right?
However, a basic understanding can help you select the right protective lenses for your purpose. Although many advertisements claim that fisherman lenses are also good for skiing and other snow sports, as well as for cycling, driving, and golfing, this may not be true. The old adage: 'buyer beware' holds true in this case.
There are great sites online that discuss the subject of natural light versus reflected beams, as well as the action of polarized glasses. Natural sunlight is 'scattered', or coming from many different directions. When it's reflected off a surface, it travels to your eyes in a much more direct way; this is referred to as glare. This direct light is more harmful to your eyes than natural, diffused sunlight.
The issue is complicated by the angle of light, so lenses that work great at ten o'clock AM and 4 o'clock PM may not do the same at dawn or high noon. The motion of the wearer's head can affect them, as well. For instance, sight might be improved by looking into the water at an angle rather than straight down, and it might be distorted when looking over the water at certain angles.
Water reflects light differently than snow does, but it bounces off a car hood in a similar manner to it's action on the water's surface. This is one reason why skiers might not want to use this sort of eye protection. Things far away may appear clearer and light will be blocked in general, but icy patches may not show up, causing a dangerous situation. Drivers may also find vision impaired under certain conditions, as might those trying to read digital instruments.
This whole topic might make an award-winning science fair project, being neither too easy or too hard to understand. If you'd rather just buy a good pair of fishing glasses, you might not need all this information. The fact that the right glasses filter out glare and make underwater objects easier to see may be all the knowledge you want.
In that case, you need to find a reputable manufacturer or depend on the advice of experienced fishermen. Magazines and online sites devoted to the sport may help. Your eye doctor might be able to give you sound counsel; perhaps he or she even fishes for fun. A good retailer will have customer reps who can answer questions when it's time to make a purchase.
However, if you really want to know, the internet has some fascinating articles. There's even a way to make sure that the lenses you have are really polarized - it involves looking at reflections in a certain way and then cocking your head and seeing if the image changes. Check it out; after all, knowledge is power, right?
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