ASU Cast® is a projection technology patented by ASU.
Based on three-colour light synthesis, uniformed polarisation modulation,
and laser speckle reduction, it has a display size of 2 to 150 inches,
as well as a luminous flux value of 15 to 2000 lumens.
ASU Touch® Smart Interaction, another one of ASU’s patented inventions, is a human machine interface, operating by obtaining external signals (including voice, gesture, facial recognition, and object features), extracting input signals through smart algorithms, and feedbacking output instructions for the device.
Using infrared emitter and receivers that emit and receive changes in infrared signals, the location and specifics of stylus can be determined, the corresponding feedback made, and the projector touch control can be achieved.
Based on the ToF laser radar distance measurement principles, target face information can be acquired by emitting laser dot matrices and analysing the laser pulse return strength and interval. Smart interactions including auto-focus and auto-keystoning can be achieved this way.
By utilising mono or stereo cameras,
projection information and external environment information can be obtained through analysing information such as human gestures and projected images using AI algorithms. Devices can then complete corresponding interactive tasks including auto-focus, auto-keystoning, automatic screen adjustment and obstacle detection.
The LFP (Light Field Projection) display technology is a 4D display technology based on micro-lens arrays.
The LCoS (Liquid Crystal on Silicon) panel is a display technology using a liquid crystal layer on top of a silicon backplane. Imaging is achieved through controlling the angles of rotation of crystals by changing the voltage applied. The ASU DLC® LCoS Display is another one of ASU’s patented inventions.
The monocrystalline silicon backplane has high electron mobility, slim circuitry and thus a high ‘fill factor’. The reflective nature of LCoS also negates the significant loss caused when light is required to pass through the panel. Therefore, LCoS devices possess high efficacy, and can achieve high brightness with less power usage.
LCoS directly uses RGB laser, therefore achieving a comparatively wide colour gamut.
Looking at the size of the chips themselves, a LCoS panel of 0.37 inches in size is sufficient for a 1080p display. From an optical system point of view, only simple additional components are required for imaging.
The low cost of LCoS comes from the simple construction of components, and from using the widely adopted and economical CMOS (Complementary Metal Oxide Semiconductor) manufacture technique, and without any further investment. The resolution can also improve alongside the rapid miniaturisation of semiconductor processes.
LCoS is highly customisable thanks to its high localisation level and independence from foreign technologies.
Consumer-level image engines
Automotive-standard LCoS image engine (H10)
As modern technologies develop, optical systems are becoming increasingly miniaturised, sophisticated, and multifunctional. The design element of optical systems has also moved on from pure traditional geometrical optics to include light field technologies and refractive optics, to enhance design precision as well as to diversify functionality. The ways to raise design efficiency and reduce the cost of iterative processes, meanwhile, is another area of interest for pioneering optical system designs.
The ASU AIOPD™ Platform is an integrated AI software platform combining geometrical optics, light field technologies, and refractive optics. In addition to the greatly improved design precision and diversified functionality, the use of AI can virtually optimise and process the system designs, significantly reducing the time scale of the iterative design processes.
AI design and validation algorithm model of DOE components
AI validation algorithm of geometrical optics with manufacturing tolerances included
AI validation algorithm of MLA components with manufacturing tolerances included