camping, or doing other outdoor activities. With a flat lens, the beam of light is narrower, which can make it difficult to see obstacles and other hazards on the trail.
Another advantage of a convex lens is its ability to focus the light. A convex lens is able to focus the light into a more intense beam, which can increase the brightness and distance of the light. This is especially useful for activities such as caving, where you need a bright and powerful light to see into the depths of the cave.
A convex lens also offers better peripheral vision than a flat lens, which can be very useful in outdoor activities such as climbing, where you need to be able to see your surroundings from different angles.
A convex lens also provides better light distribution than a flat lens. It can spread light more evenly across a wider area, which can help you see more of your surroundings and avoid obstacles. A flat lens, on the other hand, tends to produce a more concentrated beam of light, which can make it difficult to see objects that are not directly in front of you.