Apparatus, system, and method for displaying an image using a plate

• US 10,409,079 B2
• Filed: 05/19/2015
• Issued: 09/10/2019
• Est. Priority Date: 01/06/2014
• Status: Active Grant

• Current Assignee: Avegant Corp
• Original Assignee: Avegant Corp
• Inventors: Dewald, D. Scott, Evans, Allan Thomas, Westra, Chris, Welch, III, Warren Cornelius, Gross, Andrew
• Primary Examiner(s): Thomas, Brandi N
• Application Number:
  US14/716,873
• Publication Number:
  US 20150331246A1
• Time in Patent Office: 1,575 Days
• Field of Search: 359237, 359242, 359265-267, 359270-273, 359290-292, 359295, 359298
• CPC Class Codes: G02B 2027/0174 holographic
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• 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 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 27/14 operating by reflection only
• CPC Class Codes: G02B 3/0006 Arrays G02B3/02, G02B5/188 take precedence
• CPC Class Codes: G02B 5/1842 Gratings for image generation G02B5/1847 takes precedence
• CPC Class Codes: G02B 5/3033 in the form of a thin sheet or foil, e.g. Polaroid
• CPC Class Codes: G03B 21/008 using micromirror devices
• CPC Class Codes: G03B 21/2066 Reflectors in illumination beam in projection beam G03B21/28
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066
• CPC Class Codes: H04N 9/3102 using two-dimensional electronic spatial light modulators micromechanical modulators as such G02B26/0833; liquid crystal modulators as such G02F1/13

Abstract

An apparatus (110), system (100), and method (900) for displaying an image (880). Instead of using an expensive configuration of prisms (310) such as TIR prisms (311) or RTIR prisms (312) to direct light (800) to and from a DMD (324), a plate (340) with transmissive (374), reflective (372), and/or polarization (373) characteristics is used. The plate (340) can be implemented in a wide variety of different embodiments using a wide variety of different components and configurations.

Claims

1. A system for displaying an image comprised of a plurality of light to a viewer, said system comprising:

an illumination assembly that provides for generating a plurality of light; and

an imaging assembly that provides for creating said image from said plurality of light, said imaging assembly including;

a digital micro mirror device (DMD) that provides for modulating said light into said image; and

a plate that provides for reflecting a first portion of said light from said illumination assembly to said DMD and a second portion of said light transmitted through the plate and becoming lost light, and the plate further for directing said light from said DMD towards a display.

2. The system of claim 1, wherein said plate includes an aperture.

3. The system of claim 1, wherein said plate includes a plastic film.

4. The system of claim 3, wherein said plastic film is a modulated film that modifies said light in forming said image, and wherein said modulated film generates a desired optical effect.

5. The system of claim 1, wherein said plate is comprised of a plurality of films and wherein said plate is not comprised of a glass.

6. The system of claim 1, wherein said plate includes a plurality of modulated films that provide for a dynamic aperture.

7. The system of claim 1, wherein said system is a visor apparatus that includes an eyepiece, and wherein said eyepiece includes said display.

8. The system of claim 1, wherein said plate includes a plastic film with an adjustable diffractive gradient.

9. The system of claim 1, wherein said plate includes a glass and a plastic film.

10. The system of claim 1, wherein said plate has a reflectiveness that pertains to one of a full spectrum or a partial spectrum.

11. The system of claim 1, wherein said plate has a reflectiveness between 40% and 60%, such that between 60% and 40% of light incident upon the plate becomes the lost light.

12. The system of claim 1, wherein said plate provides for the polarization of said light.

13. The system of claim 1, wherein said plate is a micro lens array.

14. The system of claim 1, wherein said plate is a collapsible plate that collapses into a smaller volume of space.

20. The system of claim 1, wherein the plate is a dynamic plate for which optical characteristics of transmissiveness, reflectiveness, and/or polarization are modified while the system is generating the images.

22. The system of claim 1, wherein said plate has a reflectiveness between 95% and 5%, such that between 95% and 5% of light incident upon the plate becomes the lost light.

15. A system for displaying an image comprised of a plurality of light to a viewer, said system comprising:

an illumination assembly that provides for supplying said plurality of light to an imaging assembly , wherein said illumination assembly includes a light source;

said imaging assembly that provides for modulating said light into at an interim image, said imaging assembly including;

a digital micro mirror device (DMD) that provides for modulating said light into said interim image; and

a plate that provides for reflecting a first portion of said light from said illumination assembly to said DMD and a second portion of said light transmitted through the plate and becoming lost light, and the plate further for directing said light from said DMD towards a projection assembly; and

said projection assembly providing for the display of said image on a display from said interim image.

16. The system of claim 15, wherein said system is a VRD visor apparatus, and wherein said display is part of an eyepiece for said VRD visor apparatus.

17. The system of claim 15, wherein said plate includes a glass and a plurality of plastic films including a first plastic film on a first side of said glass and a second plastic film on a second side of said glass.

18. The system of claim 15, wherein said plate is includes an aperture and a plastic film, wherein said plastic film is a modulated film that modifies said light, and wherein said modulated film generates a desired optical effect.

19. The system of claim 15, wherein said plate includes a plurality of modulated films that provide for a dynamic aperture, and wherein said plate includes a plastic film with an adjustable diffractive gradient.

21. The system of claim 15, wherein said plate has a reflectiveness between 40% and 60%, such that between 60% and 40% of light incident upon the plate becomes the lost light.