WO2005079244B1 - Three-dimensional display using variable focusing lens - Google Patents

Three-dimensional display using variable focusing lens

Info

Publication number
WO2005079244B1
WO2005079244B1 PCT/US2005/003927 US2005003927W WO2005079244B1 WO 2005079244 B1 WO2005079244 B1 WO 2005079244B1 US 2005003927 W US2005003927 W US 2005003927W WO 2005079244 B1 WO2005079244 B1 WO 2005079244B1
Authority
WO
WIPO (PCT)
Prior art keywords
dimensional display
image
display device
depthwise
lens
Prior art date
Application number
PCT/US2005/003927
Other languages
French (fr)
Other versions
WO2005079244A2 (en
WO2005079244A3 (en
Filing date
Publication date
Priority claimed from US10/778,281 external-priority patent/US7077523B2/en
Priority to BRPI0507639-0A priority Critical patent/BRPI0507639A/en
Priority to CA002556363A priority patent/CA2556363A1/en
Priority to AU2005213989A priority patent/AU2005213989A1/en
Priority to EA200601499A priority patent/EA010399B1/en
Priority to MXPA06009227A priority patent/MXPA06009227A/en
Application filed filed Critical
Priority to AP2006003740A priority patent/AP2006003740A0/en
Priority to JP2006553184A priority patent/JP2007522526A/en
Priority to EP05713093A priority patent/EP1723468A4/en
Publication of WO2005079244A2 publication Critical patent/WO2005079244A2/en
Publication of WO2005079244A3 publication Critical patent/WO2005079244A3/en
Publication of WO2005079244B1 publication Critical patent/WO2005079244B1/en
Priority to IL177426A priority patent/IL177426A0/en
Priority to NO20064140A priority patent/NO20064140L/en

Links

Abstract

A three-dimensional display device includes a two-dimensional display displaying a first image, and a variable focusing lens receiving light from the two-dimensional display and forming a second image. The variable focusing lens reflects light from the two-dimensional display. The first image includes a predetermined number of first depthwise images that are displayed within a unit time, and the second image includes corresponding second depthwise images. Each depthwise image represents the portion of the first image having the same image depth, and the two-dimensional display displays one depthwise image at a time. The focal length of the variable focusing lens changes according to the depth of the depthwise image being displayed. A micromirror array lens is used as the variable focusing lens. The micromirror array lens has enough speed and focusing depth range for realistic three-dimensional display.

Claims

AMENDED CLAIMS[received by the International Bureau on 09 November 2005 (09.11.2005); original claims 1-21 replaced by amended claims 1-22 (4 pages)]CLAIMS AS AMENDED
1. (Currently amended) A volumetric three-dimensional display device comprising: a) a two-dimensional display displaying a first image, wherein the two-dimensional first depthwise image is the image representative of the cross section of the object at different positions along the third dimension, wherein one dimension would be the height of the object(y-axis), another its width(x-axis) and a third its depth(z- axis); and b) a micromirror array lens receiving light from the two-dimensional display and forming a three-dimensional image comprising two-dimensional second depthwise image; wherein the Micromirror Array Lens is a Diffractive-Reflective Hybrid Variable Focusing Lens, wherein the changing rate of the focal length is at least equal to the product of a depth number times persistence rate(afterimage speed) of average human eye so that the two-dimensional second depthwise images appear to fuse into a three- dimensional image of an object to a viewer, wherein the focal length of the Micromirror Array Lens is changed according to the depth.
2. (Cancelled)
3. (Cancelled)
4. (Currently amended) The three-dimensional display device of claim 1, wherein the micromirror array lens comprises a plurality of micromirrors, and wherein each micromirror is controlled to change the focal length of the variable focusing lens.
5. (Currently amended) The three-dimensional display device of claim 4, wherein the micromirrors are arranged in a flat plane, wherein the micromirrors are arranged to form one or more concentric circles.
6. (Cancelled)
AMENDED SHEET (ARTICLE 19)
22
7. (Original) The three-dimensional display device of claim 4, wherein the translational motion of each of the micromirrors is controlled.
8. (Original) The three-dimensional display device of claim 4, wherein the rotational motion of each of the micromirrors is controlled.
9. (Original) The three-dimensional display device of claim 4, wherein the rotational motion and the translational motion of each of the micromirrors are controlled.
10. (Original) The three-dimensional display device of claim 1 , further comprising a beam splitter positioned in the path of light between the two-dimensional display and the variable focusing lens.
11. (Original) The three-dimensional display device of claim 1 , wherein the variable focusing lens is positioned so that the path of the light reflected by the variable focusing lens is not blocked by the two-dimensional display.
12. (Original) The three-dimensional display device of claim 1, further comprising an auxiliary lens having a predetermined focal length, and wherein the second image is formed by the variable focusing lens and the auxiliary lens together.
13. (Original) The three-dimensional display device of claim 12, further comprising a screen for displaying the second image, and wherein the auxiliary lens increases the size of the screen.
14. (Original) The three-dimensional display device of claim 1, wherein the focal length of the variable focusing lens is controlled to be fixed.
15. (Currently Amended) A volumetric three-dimensional display device, wherein an image of an object is divided into sectional images along the depth of the object, and each sectional image is focused at the depth of the sectional image so that image focused from the sectional images looks three-dimensional to a viewer, the three-dimensional
AMENDED SHEET (ARTICLE 19) device comprising: a) a two-dimensional display displaying a predetermined depth number of first images; and b) a micromirror array lens receiving light from the two-dimensional display and forming a second image; wherein the focusing speed of the micromirror array lens is at least equal to the product of the persistence rate(afterimage speed) of average human eye and the number of depths, and wherein the micromirror array lens reflects light from the two-dimensional display.
16. (Cancelled)
17. (Currently Amended) The three-dimensional display device of claim 15, wherein the variable focusing lens is a Diffractive-Reflective Hybrid Fresnel lens.
18. (Currently amended) The three-dimensional display device of claim 1 , wherein a three-dimensional display method comprising the steps of: a) displaying the first depthwise image in two-dimension; b) displaying the second depthwise image in space by focusing light from the displayed first depthwise image according to the depth of the first depthwise image; and c) repeating steps a) and b) for a predetermined depth number of the first depthwise images within a unit time; wherein, each of the first depthwise images represents the cross section of the object, wherein the displaying speed in the step of displaying the first depthwise images is at least equal to the product of the persistence rate(afterimage speed) of average human eye and the number of depths, and wherein in the step of displaying the second depthwise images, the light received from the displayed first depthwise image is reflected.
19. (Original) The three-dimensional display method of claim 18, wherein the step of displaying the second depthwise images is performed with a micromirror array lens.
AMENDED SHEET (ARTICLE 19)
24
20. (Currently Amended) A volumetric three-dimensional display device comprising: a) a two-dimensional display comprising a plurality of pixels; and b) a plurality of micromirror array lenses, wherein each of the micromirror array lenses corresponds to each of the pixels; wherein the focusing speed of the micromirror array lens is at least equal to the persistence rate(afterimage speed) of average human eye, and each of the micromirror array lenses reflect light from the two-dimensional display, and wherein the focal length of each of the micromirror array lenses changes according to the image depth of an image displayed by each of the pixels.
21. (Original) The three-dimensional display device of claim 20, wherein each of the variable focusing lenses is made of a micromirror array lens.
22. (New) The three-dimensional display device of claim 1, the micromirror array lens is synchronized with the two-dimensional display to display the two-dimensional first depthwise images according to its depth.
AMENDED SHEET (ARTICLE 19)
25
PCT/US2005/003927 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens WO2005079244A2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP05713093A EP1723468A4 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens
JP2006553184A JP2007522526A (en) 2004-02-13 2005-02-08 3D display device using variable focus lens
AU2005213989A AU2005213989A1 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens
EA200601499A EA010399B1 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens
MXPA06009227A MXPA06009227A (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens.
BRPI0507639-0A BRPI0507639A (en) 2004-02-13 2005-02-08 volumetric three-dimensional display device
AP2006003740A AP2006003740A0 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens
CA002556363A CA2556363A1 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens
IL177426A IL177426A0 (en) 2004-02-13 2006-08-10 Three-dimensional display using variable focusing lens
NO20064140A NO20064140L (en) 2004-02-13 2006-09-13 Three-dimensional display using variable focus lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/778,281 2004-02-13
US10/778,281 US7077523B2 (en) 2004-02-13 2004-02-13 Three-dimensional display using variable focusing lens

Publications (3)

Publication Number Publication Date
WO2005079244A2 WO2005079244A2 (en) 2005-09-01
WO2005079244A3 WO2005079244A3 (en) 2005-12-08
WO2005079244B1 true WO2005079244B1 (en) 2006-01-26

Family

ID=34838146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/003927 WO2005079244A2 (en) 2004-02-13 2005-02-08 Three-dimensional display using variable focusing lens

Country Status (15)

Country Link
US (1) US7077523B2 (en)
EP (1) EP1723468A4 (en)
JP (1) JP2007522526A (en)
CN (1) CN1918511A (en)
AP (1) AP2006003740A0 (en)
AU (1) AU2005213989A1 (en)
BR (1) BRPI0507639A (en)
CA (1) CA2556363A1 (en)
EA (1) EA010399B1 (en)
IL (1) IL177426A0 (en)
MA (1) MA28455B1 (en)
MX (1) MXPA06009227A (en)
NO (1) NO20064140L (en)
TW (1) TW200537126A (en)
WO (1) WO2005079244A2 (en)

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