CEATEC JAPAN 2017 ( Official Website )

UNIVERSITY OF FUKUI (Venture & University Area)

URL: http://www.u-fukui.ac.jp/eng/

Area

THEMED Area

Booth Location

S10-32C

Products

Navigation

Car AVC products (Car navigation systems, others)

Control technologies, Applied systems

VR/AR Related

Video equipment

Mobile phones, Electronic tablet devices, Wearable devices

VR/AR Related

Display Devices

Company Introduction

[Technical summary]
Optical key elements composing retinal scanning displays are displayed. The extremely small optical engine fabricated by us provides a unique eye wear display, which keeps almost the same appearance as the conventional eye glasses. Thus, these displays offer user-friendly wearable displays and eye wear displays for medical use, which potentially realize unique future ICT services.

[Expected applications]
- Visual terminals for ICT and IoT uses
- Route guidance and emergency route indication for
　　individual uses
- Eyewear displays for low vision aids
- Visual instruction manual uses

[Highlight]
A prototype of the optical engine for color image laser projection is exhibited, which is based on the extremely-compact waveguide-type RGB combiner. Its engine size is two orders of magnitude smaller than conventional engines. Thus, the new engine realizes eyewear displays with a user-friendly appearance, which can reproduce a realistic color image.

Exhibiting Products

Exhibiting Products 1

Fig. 1 Schematic optical engine

Fig. 2 Optical engine embedded in the temple of eye glasses

Extremely-compact laser projection optical engine

An optical engine embedded in the retinal scanning displays and laser projection displays has various components such as a laser source, a RGB combiner and a laser beam scanning system. Such complicated components inevitably lead to the large engine size.
Here, we have recently succeeded in fabricating an extremely-compact RGB combiner by introducing an optical waveguide concept. Its size is as small as one piece of the rice grain. The RGB combiner has been integrated with laser diode chips and a MEMS mirror, thus realizing an extremely-compact optical engine. The prototype engine already fabricated has a size of 13×4.5×4.5 mm. Further size reduction to 6×3×2 mm can be expected. The sizes of such optical engines are two orders of magnitude smaller than the conventional optical engines (Fig. 1).
The new optical engine can be embedded in the temple itself of eye glasses. It size is so small that the embedded eye glasses keep almost the same appearance as the conventional eye glasses (Fig.2). Thus, these eyewear displays offer user-friendly unique wearable displays.