Display device having a holding device that can be placed on the head of a user
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United States of America Patent
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Sep 15, 2015
Grant Date -
Aug 22, 2013
app pub date -
Jul 21, 2011
filing date -
Sep 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A display device includes a holding device that can be placed on the head of a user. An image-generating module and an imaging lens system can be secured on the holding device. The latter includes a spectacle lens with a curved front and a curved back. It projects the image generated when the holding device is placed on the head such that the user can perceive it superimposed on the surroundings. Light from the image-generating module is coupled into an optical channel in the spectacle lens. It is conducted in the optical channel to an exit section and coupled via the exit section out of the spectacle lens. The optical channel includes in the region of the front and back a Fresnel structure with a plurality of facets on which the light conducted in the optical channel is reflected, and which are aligned parallel to one another.
First Claim
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International Classification(s)
- G09G:ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- G03B:APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS O....
- B60Q:ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE....
- G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
- G03H:HOLOGRAPHIC PROCESSES OR APPARATUS
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