A retinal scanning display system that produces multiple focal planes with a deformable membrane mirror

McQuaide, Sarah C.; Seibel, Eric J.; Kelly, John P.; Schowengerdt, Brian T.; Furness, Thomas A.

doi:10.1016/s0141-9382(03)00016-7

Cited by 45 publications

(21 citation statements)

References 19 publications

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“…McQuaide et al [24] used a method that is very similar to ours. They combined a laser projector that shows the user an image that is always in focus with deformable micro-electromechanical system (MEMS) mirrors.…”

Section: Displays For Refocusable Ar Contentmentioning

confidence: 99%

“…The autorefractometer adjusts the position of various focusing lenses until the image appears in focus to determine the focus distance of the eye. An autorefractometer can estimate the focus distance, with an average error of only 0.25 D. It is often used in medical examinations and was also used to verify the focus distance in refocusable HMDs [21,23,24]. Due to the required optical elements, even the smallest commercially available autorefractometers are too bulky to fit into an OST-HMD and have a low refresh rate of only 5 Hz.…”

Section: Measuring the Eyementioning

confidence: 99%

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EyeAR: Refocusable Augmented Reality Content through Eye Measurements

Rompapas

Rovira

Plopski

et al. 2017

MTI

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Augmented Reality (AR) superimposes computer graphics (CG) onto a user's view of the real world. A key quality problem in this field is to achieve coherence between reality and CG when the user's eyes refocus or change pupil size. We designed and evaluated a display that improves coherence by measuring the user's eye state and continuously adapting CG accordingly. Our tabletop prototype emulates an Optical See-Through Head-Mounted Display, a common AR display device. In our evaluation, participants observed three pillars at different depths. We then challenged them to identify a virtual pillar among the three while freely refocusing their eyes. Results show that our design significantly improved realism. Compared to Light Field Displays, our design aims to simplify display-optics while providing similar quality. We could only partially achieve this goal. We discuss the lessons we learned and how we plan to overcome the remaining challenges. The experimental protocol from our evaluation is useful for display developers as it can be used to measure the coherence of a display.

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Section: Displays For Refocusable Ar Contentmentioning

confidence: 99%

Section: Measuring the Eyementioning

confidence: 99%

EyeAR: Refocusable Augmented Reality Content through Eye Measurements

Rompapas

Rovira

Plopski

et al. 2017

MTI

View full text Add to dashboard Cite

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“…There are many approaches such as using prisms [3][4][5], projection systems [6][7][8], deformable membrane mirrors [9][10][11], retinal scanning [12][13][14][15], hybrid diffractive-refractive lenses [16,17], and optical waveguides [18][19][20][21][22][23][24] to realize a seethrough display and the most promising approach is an optical waveguide.…”

Section: Introductionmentioning

confidence: 99%

Portable waveguide display system with a large field of view by integrating freeform elements and volume holograms

et al. 2015

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A compact waveguide display system integrating freeform elements and volume holograms is presented here for the first time. The use of freeform elements can broaden the field of view, which limits the applications of a holographic waveguide. An optimized system can achieve a diagonal field of view of 45° when the thickness of the waveguide planar is 3mm. Freeform-elements in-coupler and the volume holograms outcoupler were designed in detail in our study, and the influence of grating configurations on diffraction efficiency was analyzed thoroughly. The offaxis aberrations were well compensated by the in-coupler and the diffraction efficiency of the optimized waveguide display system could reach 87.57%. With integrated design, stability and reliability of this monochromatic display system were achieved and the alignment of the system was easily controlled by the record of the volume holograms, which makes mass production possible.

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“…developed a new display technology called the virtual retinal display (VRD) that scans modulated low-energy laser light directly onto the viewer's retina to create a perception of a virtual image [5] [6]. Edgar el al.…”

Section: Introductionmentioning

confidence: 99%