Near-eye displays (NEDs) are becoming increasingly important for augmented reality (AR), virtual reality (VR), and mixed reality (MR) applications. They typically consist of a small display unit, such as a microdisplay or lasers, combined with an optical imaging system. This generates a virtual image for the user. Despite their growing relevance, NEDs face challenges related to user comfort and image quality, including fatigue, dizziness, field of view, luminance, contrast, and resolution. Additional key parameters include eye box characteristics and the transmission properties of AR devices, both in monocular and binocular viewing conditions. The photometric characterization of these properties is particularly challenging, as measurement devices, such as luminance cameras, must closely mimic the geometric position of the human eye within the NED system.
> OUR SOLUTION:
TechnoTeams NED lenses are designed with the entrance pupil on the outside, i.e. in front of the lens. This allows alignment in the eye box without the lens colliding with the NED system. The lenses have either a small entrance pupil by design or can be equipped with exchangeable customizable individually calibrated apertures to mimic several different adaptation and focus states of the human eye. The NED lenses have various calibrated focus options to cover different focus states.
The NED lenses are available in different focal lengths to choose between wide field of view applications (e,g, uniformity evaluation for VR) and high-resolution applications (screen door effect of VR, or MTF evaluation of NEDs in general).
> RELEVANT PRODUCTS:
- NED (AR/VR/MR) lenses: Lenses with liquid lens focus
- Conoscope lenses: Hypercentric optics for Angular Imaging
- LMK 6 Color: Image resolved luminance and color measuring camera
