White Papers

Evaluating the Impact of Wide-Angle Lens Distortion on Learning-based Depth Estimation

Most computer vision research focuses on narrow angle lenses and is not adapted to super-wide-angle (aka spherical) lenses.

Enhancing learning-based computer vision algorithms accuracy in sUAS using navigation wide-angle cameras

The new generation of sUAS (small Unmanned Aircraft Systems) aims to extend the range of scenarios in which sense-and-avoid functionality and autonomous operation can be used.

Freeform wide-angle camera lens enabling mitigable distortion

Allowing natural scenes as well as maximizing field of view (FoV) can benefit from the minimization of distortion for the wide-angle camera.

Methodology to design mobile-based camera lenses using freeform surfaces

Freeform technology is one of the most promising solutions to enhance the performance of optical systems.

Learning-based depth estimation on wide angle images with non linear distortion

We developed a Convolutional Neural Network to estimate depth on wide-angle images using panomorph lens with controlled distortion. We simulated three different lens model and compared their performances based on their zone of augmented resolution.

On the modelling of the optical properties of a metasurface composed of nanofins

The phase shift imparted by a dielectric nanofin metasurface can be modelled following a semi-analytical assessment of the guiding properties. The model can be seen as a correction to the typically used Pancharatnam-Berry model.

Wide-angle lens with improved relative illumination characteristics

Consumers nowadays have a higher expectation on cameras beyond the function of taking photos or videos.

Geometrical-based quasi-aspheric surface description and design method for miniature, low-distortion, wide-angle camera lens

In addition to utilizing traditional aspheric surfaces, complicated geometric curves for meeting stringent design requirements can also be adopted in optical systems.

Panomorph for smartphones & tablets

In today’s business world, mobility is king and video is the new way of communicating. Video Conferencing is booming and estimated to be a $34B industry. Learn more

Enhanced optical design by distortion control

The paper presents examples of how the distortion control can improve optical systems performances. Learn more (PDF)

Consumer electronic optics: how small can a lens be?

In 2014, miniature camera modules are applied to a variety of applications such as webcam, mobile phone, automotive, endoscope, tablets, portable computers and many other products. Learn more (PDF)

Design, fabrication and test of miniature plastic panomorph lenses with 180° field of view

We present two miniature all plastic megapixel panomorph lenses for consumer electronics (TTL of 6.56 mm) and mobile devices (TTL of 3.80 mm) showing the unique challenges from specification, design, manufacturing and testing phases of these new generation of...