WiMi Hologram Cloud Inc (WIMI)

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WiMi Hologram Cloud Develops Digital Holo Eye-Focus System.

Source
https://www.newstrail.com/wimi-hologram-cloud-develops-digital-holo-eye-focus-system/

February 7, 2023

In recent decades, the development of our display technology is efficient and rapid. People have experienced from black and white to color, from low resolution to ultra high definition 4K display, from 2D display to 3D display. At present, the field of display technology is generally recognized that holographic display is the only display technology that can provide all the required depth and contain all the visual information.WiMi Hologram Cloud (NASDAQ: WIMI) has been committed to the research and development of digital holographic technology and has accumulated profound technical accumulation and diversified application solutions.

In the last decade, head-mounted displays (HWD) have received great attention due to the increasing popularity of augmented reality and virtual reality applications, and head-mounted display technology has also been greatly developed. However, most HWD is currently fixed focal length stereo systems, which leads to a mismatch between the focus and dispersion, the response of the eye viewpoint, thus becoming one of the main causes of viewing discomfort in current HWD technology.

WiMi Hologram CLoud In its first generation of WiMi Holo AR Lens products, an independent intellectual property optical degree and pupil distance adjustable optical structure system, innovative structural design greatly improves the viewing and wearing comfort of HWD. Current holographic display devices (HD) are not comparable to the human visual field of view (FOV), so the earlier solution was based on fixation point display, generating only computer digital holographic content (CGH) of the eye gaze object, and using low-resolution micro-displays to display peripheral images. The mobile microdisplay can be combined with the peripheral display of a wide field, with natural focusing and field presentation using light field or multifocal and zoom methods, directing FOV from one area to another through the use of motorized optical components, but the solution has synchronization between brake size and multiple dynamic components because the inability to use individual dynamic components to control FOV can lead to system complexity and cost.

At present, the mainstream technology of HWD, processing focus, and aggregation is the wavefront digital image issued by simulated 3D objects, which sends the computer digital holographic content (CGH) to the left and right eyes. Therefore, the user can directly focus their attention on the fixated 3D object, thus eliminating the discomfort caused by the cluster-divergence adjustment conflict. In holographic HWD, CGH is usually displayed on a phase-space light modulator (SLM). Such a display does not require relay optics, since the SLM can be imaged at any distance from the eye. However, because the current SLM has a limited number of pixels, the current HWD is still limited by the field of view (FOV) and EyeBox. The total number of pixels of the SLM sets an upper limit on the spatial bandwidth product (SBP) of the system. Because HWD uses binoculars, matching the human visual ability and comfortable viewing experience. People may need a FOV of more than 80 degrees and ultra-high pixel requirements, which leads to SLM beyond the capabilities of the technical framework.

WiMi Hologram Cloud (NASDAQ: WIMI) based on the current technical bottleneck in the field of the HWD industry, puts forward a new technology architecture, a kind based on holographic headset display technology after focus (Eye Movement Focus) new optical system, applied in the next generation holographic headset display (H-HWD) to provide HWD technology to users with a better visual experience. WiMi Hologram CLoud This novel optical architecture, in which the SLM is imaged at the rotational center of the eye. In this system architecture, the FOV is transiently controlled without using any dynamic optical components.

In traditional head-mounted displays (HWD), the FOV cannot be controlled by computer digital holographic content (CGH) (i.e., keeping the image at the center of the eye focus image as the eye rotation changes focus). As shown, the eye rotation causes the displayed image to move toward the periphery. The SLM or lens is mechanically moved to bring the image to the center of tye-focused imaging. WiMi Hologram CLoud, Ha olographic head-mounted display (H-HWD) imaging in the rotating center of the eye, eye-centered design, is the core of the eye-moving chase focus system architecture. Since the SLM is imaged in the center of rotation of the eye, the gaze direction is changed by changing the light direction by CGH, as shown in the WiMi Hologram CLoud focus system architecture, changing the direction of the light by adding the diffraction lens items and grating items to the CGH without any moving components.

Compared with the traditional holographic HWD architecture, WiMi Hologram Cloud eye chase focus system architecture centered on eye design is a significant advantage, just needs to modify CGH to track the focus, can be digital instantaneous FOV control, can remove mechanical parts, on the one hand, reduce the instability of mechanical parts, reduce the weight of equipment mechanical control end, eliminate the fault of mechanical control. The key is to achieve real-time tracking and digital control of the instantaneous FOV, provide a natural fixation point display without mechanical moving parts, and greatly improve the comfort of wearing and viewing of the holographic head-mounted display (H-HWD).

The key to preventing HWD from becoming the next-generation computer platform is the cumbersome device and the discomfort of long use. With the application of WiMi Hologram Cloud (NASDAQ: WIMI) based on HWD develops eye focus system, the comfort improvement of future holographic display (H-HWD) will provide a broader application space for holographic display H-HWD.