Suppression of stray light in head worn computing

1. A method, comprising:

receiving image light;

reflecting a first portion of the image light via an angled partially reflective surface toward an eye of a user of a wearable head device;

receiving environmental light via a combiner;

transmitting, via the combiner, the environmental light toward the angled partially reflective surface;

receiving, at a polarizer, a second portion of the image light, via the angled partially reflective surface and further via the combiner; and

absorbing, via the polarizer, the second portion of the image light.

2. The method of claim 1 , further comprising transmitting the environmental light toward the eye via the angled partially reflective surface.

3. The method of claim 1 , wherein the polarizer is oriented vertically with respect to the eye when the wearable head device is worn by the user.

4. The method of claim 1 , wherein:

the first portion of the image light comprises image light of a first wavelength;

the second portion of the image light comprises image light of a second wavelength different from the first wavelength; and

absorbing the second portion of the image light comprises filtering the second wavelength.

5. A wearable head device comprising:

an image source configured to produce image light;

an angled partially reflective surface configured to receive the image light and reflect a first portion of the image light toward an eye of a user of the wearable head device; and

a combiner configured to receive environmental light and transmit the environmental light toward the angled partially reflective surface; and

a polarizer configured to absorb a second portion of the image light, wherein the second portion of the image light is received via the angled partially reflective surface and further via the combiner.

6. The wearable head device of claim 5 , wherein the angled partially reflective surface is further configured to receive the environmental light and transmit the environmental light toward the eye.

7. The wearable device of claim 5 , wherein the polarizer is oriented vertically with respect to the eye when the wearable head device is worn by the user.

8. The wearable device of claim 5 , wherein:

the first portion of the image light comprises image light of a first wavelength;

the second portion of the image light comprises image light of a second wavelength different from the first wavelength; and

absorbing the second portion of the image light comprises filtering the second wavelength.

9. The method of claim 1 , further comprising:

transmitting, via an optical element, the first portion of the image light and the second portion of the image light in a first direction toward the angled partially reflective surface;

transmitting, via the optical element, a third portion of the image light in a second direction toward a light trap; and

absorbing, via the light trap, the third portion of the image light.

10. The wearable device of claim 5 , further comprising:

a light trap;

an optical element, the optical element configured to transmit a first portion of the image light and the second portion of the image light in a first direction toward the angled partially reflective surface and further transmit a third portion of the image light in a second direction toward the light trap.