Quality and solutions
Quality
ORAFOL Fresnel Optics is certified according to DIN ISO 9001 since 1996 and therefore has a clear structure and organization of internal processes. The quality insurance covers the whole manufacturing process, is permanently monitored and optimized. Various measurement devices, both standard systems and customer specific set ups are used for defect detection and functional tests. Every product is inspected either manually or automatically.
Service
The ORAFOL Optic Solutions Division offers various different microstructured polymer optics for a wide range of applications. These microstructures allow for optical effects that are hardly possible with conventional curved optics and would require more space. Additionally, the volume-reducing characteristics of ORAFOL’s Fresnel products also lead to cost- and ressource-saving production.
Further benefits of microstructured polymer optics include:
- Savings in weight and constructional support
- Almost unlimited freedom in designing lenses even with very large apertures or multiple focal lengths
- Cost-effective production in all quantities
- High degree of flexibility in shaping, trimming and combining structures in arrays
Products
Fresnel lenses
Positive Fresnel lenses are converging lenses that can focus or collimate light. Typically, these lenses are corrected for spherical aberration.
A negative Fresnel lens is a diverging lens and is therefore the opposite of a positive Fresnel lens with diverging light rays.
Positive Fresnel Lenses
Fresnel Cylindrical lenses
Beam path Cylindrical lenses
A Fresnel cylindrical lens has a linear Fresnel structure. It collects light in one direction and the result is a line image instead of a point image.
Fresnel Prism
Beam path Fresnel Prisms
A Fresnel Prism has a linear structure with a constant prism angle. It deflects collimated light with a constant deflection angle.
Fresnel beamsplitter
Beam path Fresnel beamsplitter
A Fresnel Beamsplitter has a linear structure with two facets of opposite slope angles. The light is split into two beams and the included angle between the two beams is referred to as the separation angle.
Diffusers
Diffusoren
Surface relief diffusive microstructures (SRDM) are used for specifically distributing light in a defined angle range. They homogenize irregular light distributions as well as local intensity peaks.
It is also possible to apply those diffusive microstructures directly into the plano side of all our plastic optics components.
Microlens arrays
Microlens arrays are one- or two-dimensional periodic patterns of small lens structures (lens dimensions up to a few millimeters). We offer custom designs without limitations regarding the pattern in a wide range of microlens sizes and overall array dimensions.
It is possible to apply a microlens array directly into the plano side of all our polymer optical components.
Beam path Microlens arrays
Lenticulars
Beam path Lenticulars
Lenticulars have linear structures where every groove has a small radius creating multiple line images. They are primarily used for projection screens and three-dimensional images.
Retroreflectors
Beam path Retroreflectors
Corner cube retro-reflectors are very small, efficient prism corner reflectors that send back light in nearly the same direction from which it came.
Other Products
The versatility and expertise of ORAFOL allow for a whole range of additional products, including lightguides, pericentric lenses, optical windows and more.
Even custom solutions for optical elements made of plastics not belonging to any afore-mentioned microstructure can be realized.
ORAFOL Fresnel Optics Broschüre
PDF, 3312 Kb., 15 Pages