| 摘要 |
The present invention relates to a method of virtual 3D image presentation and an apparatus for virtual 3D image presentation, intended especially for applications in virtual reality systems. The method consist in that the optical power of the spectator's eye (3) is continuously measured with the eye optical power measurement system (1), and, based on the measured optical power, the sharp vision plane of the spectator's eye (3) is determined, and then the sharp vision plane of the spectator's eye (3) is superimposed onto the surface of the screen (7, 8) presenting the virtual 3D contents, and simultaneously, the depth of focus for the virtual 3D contents is determined, such that objects, laid in the virtual scene at their apparent distance from the spectator equal to the current unmodified sharp vision distance of his/her eye, are presented as sharp, while the objects laid closer or further away are presented with blur, where the amount of blur is a non-decreasing function of the absolute difference of the spectator's eye sharp vision distance and the apparent distance to the object in the virtual scene. The apparatus comprising of a microprocessor device (4) connected to at least one eye optical power measuring system (1), which is connected to at least one screen positioning mechanism (9) that dynamically positions the miniature screen (8), and the miniature screen (8), connected to the microprocessor device (4), is always positioned at the modified sharp vision distance, irrespective of the spectator's eye (3) accommodation, and furthermore, the static focusing system (10) placed between the miniature screen (8) and the spectator's eye (3).
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