Patent ID: 11874469
Assignee: ARM LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. An imaging system for a head-mounted display, HMD, device, the imaging system comprising:
a holographic image generator for generating a holographic image of a virtual object;
a display for showing the holographic image in an external scene, the display including a light attenuator;
a camera to capture the external scene; and
a controller configured to determine an amount of attenuation to be applied by the light attenuator, such that the amount of attenuation varies in accordance with difference between a luminance of the captured external scene and a luminance of the holographic image,
wherein the holographic image generator projects the generated holographic image onto the light attenuator such that the virtual object is shown in an attenuated area of the light attenuator.