SEE-THROUGH COMPUTER DISPLAY SYSTEMS

• US 20150205035A1
• Filed: 12/05/2014
• Published: 07/23/2015
• Est. Priority Date: 01/21/2014
• Status: Abandoned Application

• Current Assignee: Osterhout Design Group
• Original Assignee: Osterhout Design Group
• Inventors: Border, John N., Haddick, John D.
• Application Number:
  US14/561,949
• Publication Number:
  US 20150205035A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/015 involving arrangement aiming to get less bulky devices
• CPC Class Codes: G02B 2027/0152 involving arrangement aiming to get lighter or better balanced devices
• CPC Class Codes: G02B 2027/0174 holographic
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 2027/0194 with combiner of laminated type, for optical or mechanical aspects
• CPC Class Codes: G02B 26/0833 the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD G02B26/0825 takes precedence; micromechanical devices in general B81B
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 27/10 Beam splitting or combining systems polarising systems G02B27/28; mixing and splitting light signals using optical waveguides G02B6/28; beam shaping, e.g. changing the cross-sectional area, by dividing or superposing multiple light beams G02B27/0905
• CPC Class Codes: G02B 27/1033 having a single light modulator for all colour channels
• CPC Class Codes: G02B 27/144 using partially transparent surfaces without spectral selectivity G02B27/147 takes precedence
• CPC Class Codes: G02B 27/283 used for beam splitting or combining
• CPC Class Codes: H04N 23/51 Housings
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

Abstract

Aspects of the present invention relate to providing see-through computer display optics.

Claims

1. A compact light source for a head mounted display that includes an angled reflector, comprising:

a. a reflective image source;

b. a planar light source positioned behind the angled reflector that provides illumination light,

c. wherein illumination light reflected by the reflective image source provides image light;

d. a lens element;

e. wherein the angled reflector redirects the image light toward the lens element;

f. a combiner that reflects image light and transmits more than 50% of incident light from the environment toward a user'"'"'s eye; and

g. a turning film positioned between the planar light source and the angled reflector that redirects the illumination light toward the reflective image source.

2. The compact light source of claim 1, further comprising an absorbing polarizer adjacent to the lens element that is oriented to absorb incident illumination light and transmit incident image light.

3. The compact light source of claim 1, further comprising a diffuser between the planar light source and the angled reflector.

4. The compact light source of claim 1, further comprising a polarizer between the planar light source and the angled reflector.

5. The compact light source of claim 1, further comprising a light guide and a reflector.

6. The compact light source of claim 1, further comprising one or more edge lit LEDs.