Lightguide type Maxwellian near-eye display with enlarged horizontal field of view by optical reconfiguration of input image

다국어 초록 (Multilingual Abstract)

We present a novel design of the lightguide type optical see-through Maxwellian near-eye display.
The proposed display reconfigures vertically long input images to horizontally long output imagesfor wide horizontal viewing-angle. The reconfiguration of the input images is optically performedby using folding holographic optical elements and different numbers of total internal reflectionswithin the lightguide. The upper and lower parts of the in-coupled image undergo different numbersof total internal reflections, being separated into two images. After the separation, the upperpart is additionally diffracted by the folding holographic optical element to the side of the lower part.
Finally, the horizontally tiled upper and lower parts are out-coupled towards the eye by correspondingholographic optical elements. The optical power of the output couplers converges the outputimage to a focal spot on the eye pupil so that users experience all-in-focus images. In the opticalexperiment, the wavelength difference between the display and the holographic optical elementrecording system was pre-compensated by adjusting the recording angle. Our prototype successfullydemonstrates horizontal tiling of the upper and lower parts of the input images, showing atwo-times larger output horizontal field of view than the input.

참고문헌 (Reference)

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