BACKGROUND

As augmented reality (AR) and/or virtual reality (VR) devices that include eyewear, headsets enter the era of mass production, it imminently needs a standard hardware system that can be tweaked to perform general assembly for devices with different optical designs. A conventional assembly method of AR/VR imaging systems only relies on mechanical housings to fix optical components at their designed positions. Because near-eye imaging system is sensitive to the variations of individual optical components in production and the tolerance of mechanical housing, some resulting near-eye imaging systems may not reach the perfect condition as designed. Further, the variations of individual optical components may cause the inconsistency of optical performance among individual products. Both largely deteriorate the user experience of AR/VR products.

SUMMARY

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

One example aspect of the present disclosure provides an example method for active alignment for assembling optical imaging systems. The example method may include aligning an optical detector with an optical component. The optical component may be configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The example method may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine. Further still, the example method may include adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Another example aspect of the present disclosure provides an example system of active alignment for assembling optical imaging systems. The example system may include an optical engine configured to display an image; and an optical component configured to alter a direction of one or more light beams emitted from the image. Further, the example system may include an optical detector aligned with at least one component of the optical system. The optical detector may be configured to detect a virtual image generated by the one or more light beams emitted by the optical engine. Further still, the example system may include a multi-axis controller configured to adjust an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features herein after fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.

