OPTICAL CONFIGURATIONS FOR HEAD WORN COMPUTING

1 . A head-worn computer, comprising:

a. an image light production facility including a platform including a plurality of multi-positional mirrors;

b. a lighting facility adapted to produce a narrow bandwidth of visible illumination light to substantially uniformly illuminate the platform;

c. wherein each of the multi-positional mirrors has a first state positioned to reflect a portion of the illumination light, forming image light, on an optical axis in-line with a holographic mirror;

d. the holographic mirror adapted to reflect a substantial portion of the narrow bandwidth of the image light directly, without further reflections, towards an eye of a person wearing the head-worn computer; and

e. the holographic mirror further adapted to transmit substantially all visible spectrum light other than the narrow bandwidths of the image light to provide high transmissivity of light from a surrounding environment.

2 . The head-worn computer of claim 1 , wherein the holographic mirror is positioned at an angle with respect to a front surface of the platform, wherein the angle is greater than 45 degrees.

3 . The head-worn computer of claim 1 , wherein the holographic mirror is adapted to reflect a plurality of visible bandwidths of light and transmit substantially all other visible bandwidths other than the plurality of reflected visible bandwidths of light.

4 . The head-worn computer of claim 3 , wherein the holographic mirror transmits a majority of surrounding environment light incident on the holographic mirror.

5 . The head-worn computer of claim 3 , wherein the lighting facility produces a narrow bandwidth of light with a quantum dot illumination facility.

6 . The head-worn computer of claim 3 , wherein the lighting facility produces a narrow bandwidth of light with a light emitting diode lighting facility.

7 . The head-worn computer of claim 3 , wherein the lighting facility produces a diffuse cone of light with a backlit illumination facility.

8 . The head-worn computer of claim 1 , wherein each of the multi-positional mirrors has a second state positioned to reflect portions of the illumination light on an optical axis off-line with the eye of the person wearing the head-worn computer, wherein the off-line optical axis terminates at a light absorption facility.

9 . The head-worn computer of claim 8 , further comprising a solid optic positioned to redirect the off-line optical axis to a position proximate a second side of the platform, creating a vertically compact head-worn computer.

10 . The head-worn computer of claim 1 , further comprising an eye imaging camera positioned to image the eye of the person wearing the head-worn computer by capturing light reflected off a subset of the plurality of mirrors wherein the subset of the plurality of mirrors are in a second state.