In the industry of consumer electronics, the continously increasing use of optical sensors is driving innovation and production of smaller sensor modules with higher performance and lower cost. The key enabler to this development is the continuous innovation within advanced optical components.
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What are optical sensors?
Optical sensors are electronic detectors that have the ability to either convert or change light into an electric signal. In many sensors, the performance is directly linked to the optical parts. Classical refractive optics are bulky, and many lenses placed in a stack are needed to correct for aberrations. Diffractive optical elements (DOEs) and metalenses are typically thin, flat optical parts that can focus light like a classical curved lens. They can also manipulate incoming light in many other ways. It is possible to correct chromatic aberrations and maintain a good efficiency.
With multi-level DOEs it is possible to modify incoming light to an almost arbitrary output illumination. Some of these transformations are so popular that they have dedicated names such as beam splitters, beam shapers, diffusers and kinoforms.
An alternative way of designing these optics is to scale down classical optics into a Microlens Array (MLA).
Optical Applications and what we can do
NIL Technology is your partner throughout the whole journey, from design to production of the optical part. We supply design, prototyping and manufacturing services of DOEs, such as beam splitters, beam shapers, diffusers and MLAs, serving both large corporations and academic researchers.
The optics can either be made by production of a master that is replicated into an optical material or it can be directly etched into a hard material e.g. fused silica, silicon, germanium etc.
For the last decade, we have developed several different proprietary processes, each process adapted for a specific type of structure with the purpose of maximizing quality, efficiency and flexibility in the manufacturing of DOEs.
We look forward to hearing about your specific demands in this field.
Compact nanoscale optical components appear in an increasing amount of applications. A few key applications are LiDAR systems for robotic vision or self-driving cars, displays, virtual/augmented reality (waveguides and proximity sensors), depth cameras for face recognition and lighting (e.g. LEDs).
We are working with customers within these areas and support with design, prototyping and manufacturing of the optical components.