A 3D Head Up Display with Simulated Collimation

Coni, Philippe; Hourlier, Sylvain; Servantie, Xavier; Laluque, Laurent; Gueguen, Aude

doi:10.4271/2016-01-1978

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…In our system, the effective transition duration between the two states is limited at 2 ms, thanks to the high acceleration rate delivered by the piezoelectric actuator, and the low inertia of the filter. In addition, the two goggles notches present a wide spectral overlap (10 nm) around 532 nm (also providing a laser strike protection, as explained in document), midway between the two operational positions. This overlap helps to reduce the need of image blanking and to remove transition crosstalk.…”

Section: Spectral Modulator With Tunable Filtermentioning

confidence: 91%

“…An innovative solution, using spectral multiplexing on green‐only image, was presented in document, achieving a transmission rate of 75%.…”

Section: Introductionmentioning

confidence: 99%

“…Legacy 3D stereoscopic systems, using active shutter goggles or polarized goggles, cannot achieve the transmission rate of 70% required by the HUD standard. 1 An innovative solution, using spectral multiplexing on green-only image, was presented in document, 2 achieving a transmission rate of 75%.…”

Section: Introductionmentioning

confidence: 99%

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Development of a 3D HUD using a tunable bandpass filter for wavelength multiplexing

et al. 2017

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A 3D stereoscopic head‐up display using a tunable bandpass filter to perform left and right image spectral separation is presented. Using a single filter reduces the size and the cost of the head‐up display optical engine and enables each spectral band to be accurately tuned. Experiments performed on the first prototype demonstrate the ability to continuously tune the bandpass frequency on 30‐nm range while keeping a 20‐nm bandwidth. Such a system avoids the use of a bulky and costly rotating wheel and enables the use of holographic optical elements known to be wavelength selective.

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Section: Spectral Modulator With Tunable Filtermentioning

confidence: 91%

“…An innovative solution, using spectral multiplexing on green‐only image, was presented in document, achieving a transmission rate of 75%.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a 3D HUD using a tunable bandpass filter for wavelength multiplexing

et al. 2017

Self Cite

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“…[7][8][9][10][11][12] The choice of relay optics in the system can locate the projected symbology in the observer's far field. 13,14 This display system presents relevant control information to the vehicle's operator, while still allowing light from beyond the combiner to propagate to the observer.…”

Section: Introductionmentioning

confidence: 99%

Improving head-up display with waveguides and holographic optical elements

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Mann

Draper

et al. 2019

Practical Holography XXXIII: Displays, Materials, and Applications

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“…By overlaying relevant flight data on the real-world scene outside the plane, pilots are saved from having to redirect their gaze from the exterior of their vehicle to see the information on the HDDs [3][4][5]. HUDs designed for aviation locate their projected flight symbols in the far field [6,7]. This means that observers need not change their focus away from their environment to see the information presented by the HUD.…”

Section: Introductionmentioning

confidence: 99%

Holographic waveguide heads-up display for longitudinal image magnification and pupil expansion

2018

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The field of view of traditional heads-up display systems is limited by the size of the projection optics. Our research is focused on overcoming this limitation by coupling image-bearing light into a waveguide using holographic elements, propagating the light through that waveguide, and extracting the light several times with additional holographic optical elements. With this configuration, we demonstrated both longitudinal magnification and pupil expansion of the heads-up display. We created a ray-trace model of the optical system to optimize the component parameters and implemented the solution in a prototype that demonstrates the merit of our approach. Longitudinal magnification is achieved by encoding optical power into the hologram injecting the light into the waveguide, while pupil expansion is obtained by expanding the size of the hologram extracting the light from the waveguide element. To ensure uniform intensity of the image, the diffraction efficiency of the extracting hologram is modulated according to the position. Our design has a 12°×8° field of view at a viewing distance of 10 in. (250 mm), with infinite longitudinal magnification and a 1.7× lateral pupil expansion.

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A 3D Head Up Display with Simulated Collimation

Cited by 8 publications

References 8 publications

Development of a 3D HUD using a tunable bandpass filter for wavelength multiplexing

Development of a 3D HUD using a tunable bandpass filter for wavelength multiplexing

Improving head-up display with waveguides and holographic optical elements

Holographic waveguide heads-up display for longitudinal image magnification and pupil expansion

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