peegeldavad

Peegeldavad is Estonian for reflective, used to describe surfaces, coatings, or materials that return light toward the source and thereby improve visibility in low‑light conditions. The term is commonly applied to safety-related materials and signage.

There are different ways light can be reflected. Specular reflection mirrors light in a single direction, while diffuse reflection scatters light in many directions. In safety applications, retroreflection is especially important: light is returned toward the source (for example a driver) even when the surface is not directly facing it. Most peegeldavad safety materials rely on retroreflection, often achieved with microprisms or glass beads embedded in a film or coating.

Materials and technologies used to achieve peegeldavad properties include retroreflective sheeting, reflective tapes, and coatings applied to fabrics or hard surfaces. These materials may use layers of tiny glass beads or a prism-like microstructure to maximize light return. Brightness is specified under standardized test geometries and depends on color, material, and angle of incidence.

Applications of peegeldavad materials are widespread. They are used in high‑visibility clothing and personal protective equipment, road signs, traffic markings, vehicle reflectors, and safety gear for outdoor workers and cyclists. Standards and regulations govern their performance, color, and visibility in different regions. In Europe, examples include EN ISO 20471 for high‑visibility clothing and related signage standards; in North America, ANSI/ISEA standards address reflective performance for safety apparel.

Overall, peegeldavad materials play a crucial role in improving nighttime and low‑light safety by ensuring that objects and people stand out to observers and drivers.