The present application is based on, and claims priority from JP Application Serial Number 2019-156442, filed Aug. 29, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.

BACKGROUND

1. Technical Field

The present disclosure relates to an optical device that can be applied to a wearable display device that presents a virtual image to an observer, and a wearable display device using the same.

2. Related Art

For example, a device has been known that can constitute a head-mounted display (HMD), an aspect of a wearable display device, in which a front imaging camera is provided within a housing provided associated with a light-guiding member for guiding imaging light, and relationships of position, angle, and the like between the camera and the light-guiding member is adjusted by an adjustment mechanism provided at a frame (JP-A-2017-212475).

In the device of JP-A-2017-212475, the camera is fixed to the housing disposed on an upper side of the light-guiding member, and the housing is a separate member from the light-guiding member. Furthermore, the housing constitutes an image display unit that is supported by an eyeglass-shaped frame. In this case, depending on a configuration of the housing and other components, there is a possibility that, by influence of manufacturing tolerances, assembly tolerances, and the like, shifting occurs between a display image range and an imaging range by the camera, and, for example, in a case of a so-called see-through type, accuracy lowers when a display image is superimposed on an external space image viewed by a wearer.

SUMMARY

An optical device in one aspect according to the present disclosure includes a light-guiding member configured to guide imaging light, a positioning portion provided at the light-guiding member, a space detection sensor configured to perform space detection of an external space, and a sensor fixing member attached to the light-guiding member in contact with the positioning portion and configured to hold the space detection sensor.

