14-5L:Late-News Paper: Retinal Imaging Laser Eyewear with Focus-Free and Augmented Reality

Abstract

Retinal Imaging Laser Eyewear has a miniature laser projector inside the frame which provides the wearer with digital image information through the pupil using the retina as a screen. This compact universal‐design eyewear features focus‐free and augmented‐reality image independent of the wearers' visual acuity and point of focus. This paper describes the background of this technology, the principle of focus‐free imaging, the device with a trademark of RETISSA®, and its laser safety analyses based on international guidelines and standards.

Implementation and characterization of the optical-see-through Maxwellian near-eye display prototype using three-dimensional printing

“…A single-mode optical fiber is used to transmit the laser light to the NED prototype. For the eye safety, the laser intensity was kept low during the operation [17]. One of the lenses located in front of an optical fiber is for collimating the light from the light source.…”

<p>First Evaluation of a Retinal Imaging Laser Eyewear System Based Low Vision Aid</p>

“…Full color is realized by using a Red (640µm wavelength), Green (515µm) and Blue (465µm) laser diode. 12 To be used as a LVA a laser eyewear system must satisfy two conditions: First, it is of extreme importance that the device inflicts no harm to the eye. Secondly, it should still be able to project clear images to be useful as a LVA.…”

“…11 This could be achieved by the principle of “Maxwellian view,” in which the thin parallel laser beam projects images through the center of the ocular lens directly onto the retina. 12 This laser projection technique allowed also passing through corneal opacities. The image was projected in a raster pattern, pixel by pixel onto the retina by means of a red laser diode and a mechanical resonance scanner (MRS).…”

“…13 As a result of advances in recent years, technology has been further developed to project full color images of a camera, integrated into a spectacle, directly onto the retina. 12 , 14 , 15 For this Retinal Imaging Laser Eye Wear (RILEW), a RGB (Red, Green and Blue)-Laser was used instead of the red laser diode by Furness et al, and the MRS-mirror was replaced by a microelectromechanical (MEMS) system, which allows even higher scan speeds (about 20ns) and thus higher-resolution (see Figure 1 ). Due to an autofocus and automated contrast settings the device can be operated in various circumstances and lighting conditions.…”

“…Full color is realized by using a Red (640µm wavelength), Green (515µm) and Blue (465µm) laser diode. 12

Figure 1 The retinal imaging laser eyewear projects the images of the integrated camera directly onto the retina of one eye via a RGB-Laser and a MEMS mirror and reflector system. Copyright by QD Laser Inc.

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