If you take one apart, you'll see that the reverse side of the plastic lens (the clear or red part) has been molded with hundreds of tiny pyramidal shapes. When light enters the reflector through the plastic, the angled sides of the pyramids act as tiny mirrors to reflect the light back out in different directions.
Actually the question asks how it is MADE. They are injection molded, you can tell this from the ejection pin marks found on the inside (or outside) surface. They are usually made from PMMA (acrylic).
There can be plenty of screws on a bicycle. Some to attach fenders and racks, some to attach light and reflectors, bicycle bells etc etc.
Car drivers can easily see bicycle reflectors in the beam from their headlights because reflectors are designed to bounce light back towards the source. When a car's headlights shine on bicycle reflectors, the light reflects directly back to the driver, making the reflectors highly visible. Additionally, the contrast between the bright reflection and the darker surroundings enhances visibility, allowing drivers to spot cyclists even in low-light conditions. This reflective property is crucial for cyclist safety on the road.
The exact laws may differ from place to place, but usually a bicycle only require lights and reflectors if it's being used on roads/in public after dark.
If the bicycle is road legal(has brakes, lights, reflectors) - sure.
wheels, spokes, chain, gears, handle bar, frame, pedals, seat, reflectors, brakes
A reflector basically is something that causes incoming energy to bounce back in the same but opposite direction that it came from. Bicycle reflectors are fairly small plastic, flat things located on the front, back, side and sometimes on the pedals of the bicycle. The reflectors have small mirror-like surfaces that become very bright when something like the light from a car hits them, making the bicycle easier to spot.
In the UK, pedal reflectors (and also on both wheels) must be on new bicycles when are sold. There is (as far as I understand) no law that prevents a cyclist from removing the reflectors, or cycling without them. Most cyclists tend to leave them in place as they are considered a safety feature.
In daylight, nothing more than working brakes. After sunset, also reflectors and working lights.
When choosing child bicycle pedals, consider safety features like non-slip surfaces, adjustable straps, and reflectors for visibility.
because of the reflection off of the material used to reflect light
When choosing a bicycle with a child carrier, consider safety features like a sturdy frame, secure harness system, adjustable footrests, and reflectors for visibility.
If you want to ride after dark in a legal manner you need: - a white reflector facing front - yellow/orange reflectors facing sideways - and a red reflector facing rear Depending on location, you may also be required to use lights, usually white forward and red backwards. Reflectors on a bicycle are used to provide for rider safety. People who ride bicycles near automobiles use reflectors in a similar manner to headlights on a passenger vehicle. Different jurisdictions have differing requirements for reflectors on bicycles.