Head mountable display

A head-mountable display device, comprising:

• a housing defining an external surface;
• a frame secured to the housing;
• a button defining the external surface and depressible relative to the housing;
• an environmental sensor secured to the frame;
• an audio system secured to the frame;
• an optical module secured to the frame, the optical module comprising:
• a display configured to project light toward an eye of a user donning the head-mountable display device;
• and
• an inward facing sensor;
• and
• a processor electrically coupled to the button, the environmental sensor, the audio system, the display, and the inward facing sensor;
• wherein:
• the processor is configured to cause the display to project augmented reality content including an immersion level of virtual content superimposed over real-world content captured by the environmental sensor and cause the audio system to provide an immersion level of audio content combined with real-world content captured by the audio system,
• the immersion level of audio content includes spatial audio or volume associated with the augmented reality content;
• and
• a depression of the button changes the immersion level of virtual content and the immersion level of the audio content.

A wearable display device, comprising:

• a housing defining an external surface;
• a button manipulatable relative to the housing;
• a first sensor oriented in a first direction to detect an environment external to the housing;
• an optical module within the housing, the optical module comprising:
• a display configured to project light toward an eye of a user donning the wearable display device;
• and
• a second sensor oriented in a second direction opposite the first direction and configured to detect a facial feature;
• and
• a processor electrically coupled to the button, the first sensor, the second sensor, and the display, the processor is configured to gradually adjust a level of augmented reality immersion projected by the display based on a duration of manipulation of the button, wherein adjusting the level of augmented reality immersion includes adjusting a level of interaction available based on the facial feature.