Post and pocket microstructures containing moveable particles having optical effects
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-026/00
G09G-003/34
출원번호
US-0805952
(2001-03-14)
발명자
/ 주소
Engler, David A.
Biernath, Rolf W.
출원인 / 주소
3M Innovative Properties Company
대리인 / 주소
Buckingham, Stephen W.
인용정보
피인용 횟수 :
12인용 특허 :
22
초록▼
A microfabricated structure to interact with electromagnetic waves, such as a visual display apparatus for positioning movable particles, the structure comprising a substrate containing a plurality of pockets and/or a plurality of posts, and a plurality of optically anisotropic particles placed in t
A microfabricated structure to interact with electromagnetic waves, such as a visual display apparatus for positioning movable particles, the structure comprising a substrate containing a plurality of pockets and/or a plurality of posts, and a plurality of optically anisotropic particles placed in the substrate. Pockets are sealable in relation to other pockets and to air, and each pocket being capable of positioning at least one particle.
대표청구항▼
A microfabricated structure to interact with electromagnetic waves, such as a visual display apparatus for positioning movable particles, the structure comprising a substrate containing a plurality of pockets and/or a plurality of posts, and a plurality of optically anisotropic particles placed in t
A microfabricated structure to interact with electromagnetic waves, such as a visual display apparatus for positioning movable particles, the structure comprising a substrate containing a plurality of pockets and/or a plurality of posts, and a plurality of optically anisotropic particles placed in the substrate. Pockets are sealable in relation to other pockets and to air, and each pocket being capable of positioning at least one particle. a substantially total internal reflection; and (iii) at least one output holographic optical element formed in said second side of said body, such that light arriving at any of said at least one output holographic optical elements exits said body in a direction substantially similar to said given direction of said incident light and reaches one of the eyes of the viewer; and (b) positioning said holographic plate with respect to said eye of the viewer, and said at least one input and output holographic optical elements with respect to said body, such that passive light radiation originating from both the first and second scenes is simultaneously directed into said eye of the viewer. 5. The method of claim 4, wherein said holographic plate further includes: (iv) a corrective optical lens for correcting a vision defect of the viewer, said corrective optical lens being positioned between said holographic plate and said eye of the viewer. 6. The method of claim 5, wherein said holographic plate is two holographic plates, each of said plates being positioned in front of a different eye of the viewer. 7. The method of claim 6, wherein the viewer is further provided with a headset for housing said holographic plates. 8. The method of claim 4, wherein said holographic plate is two holographic plates, each of said plates being positioned in front of a different eye of the viewer. 9. The method of claim 8, wherein the viewer is further provided with a headset for housing said holographic plates. 10. A bifocal optical arrangement for using as bifocal eyeglasses by a viewer, in order to view a close scene and a distant scene, the bifocal optical arrangement comprising: (a) a magnifying-collimating eyepiece lens having a short focal length, for magnifying the close scene and for collimating light passing through said magnifying-collimating lens; (b) an optical arrangement for directing incident light originating from the close scene and passing through said magnifying-collimating lens into an eye of the viewer, and at the same time, for directing incident light originating from the distant scene into said same eye of the viewer, and (c) a corrective eyepiece lens for compensating for a long distance visual defect, said corrective lens being positioned between said optical arrangement and said same eye of the viewer, wherein said optical arrangement includes a holographic plate, said holographic plate including a first input holographic optical element for passing incident light passing through said magnifying-collimating lens into said holographic plate. 11. The bifocal optical arrangement of claim 10, wherein said holographic plate further includes an output holographic optical element for passing light entering said holographic plate out of said holographic plate to reach said eye of the viewer. 12. A method for a viewer to view a close scene and a distant scene, using a bifocal eyeglass, the method comprising the steps of: (a) providing the viewer with the bifocal eyeglass including: (i) a magnifying-collimating eyepiece lens having a short focal length, for magnifying the close scene and for collimating light passing through said magnifying-collimating lens; (ii) an optical arrangement for directing incident light originating from the close scene and passing through said magnifying-collimating lens into an eye of the viewer, and at the same time, for directing incident light originating from the distant scene into said same eye of the viewer, and (iii) a corrective eyepiece lens for compensating for a long distance visual defect, said corrective lens being positioned between said optical arrangement and said same eye of the viewer, and (b) viewing, simultaneously, the close scene and the distant scene, by the viewer, wherein the bifocal eyeglass is a pair of eyeglasses. 13. The method of claim 12, further comprising the step of: (c) selecting the close scene, by the viewer, from a plurality of close sc enes. 14. The method of claim 13, wherein said selecting of said close scene is performed by a head movement of the viewer. 15. A method to be used by a viewer to view a close scene from a plurality of close scenes, and a distant scene, the method comprising the steps of: (a) providing the viewer with a magnifying-collimating eyepiece lens having a short focal length, for magnifying the close scene and for collimating light passing through said magnifying-collimating lens; (b) providing the viewer with an optical arrangement for directing incident light originating from the close scene and passing through said magnifying-collimating lens into an eye of the viewer, and at the same time, for directing incident light originating from the distant scene into said same eye of the viewer, said optical arrangement including a holographic plate; (c) providing the viewer with a corrective eyepiece lens for compensating for a long distance visual defect, said corrective lens being positioned between said optical arrangement and said same eye of the viewer; (d) selecting a close scene from the plurality of close scenes, and (e) passing incident light passing through said magnifying-collimating lens into said holographic plate via an input holographic optical element. 16. An optical system to be used by a viewer to view a close scene of a plurality of close scenes, and a distant scene, the system comprising: (a) a magnifying-collimating eyepiece lens having a short focal length, for magnifying the close scene and for collimating light passing through said magnifying-collimating lens; (b) an optical arrangement for directing incident light originating from the close scene and passing through said magnifying-collimating lens into an eye of the viewer, and at the same time, for directing incident light originating from the distant scene into said same eye of the viewer; and (c) a corrective eyepiece lens for compensating for a long distance visual defect, said corrective lens being positioned between said optical arrangement and said same eye of the viewer, wherein said optical arrangement is designed and configured such that the viewer selects the close scene from the plurality of close scenes, and wherein said optical arrangement includes a holographic plate, said holographic plate including: (i) a first input holographic optical element for passing incident light passing through said magnifying-collimating lens into said holographic plate. 17. The optical system of claim 16, wherein said holographic plate further includes: (i) an output holographic optical element for passing light entering said holographic plate out of said holographic plate and reach said eye of the viewer. 18. Eyeglasses to be used by a viewer to view a close scene of a plurality of close scenes, and a distant scene, the eyeglasses comprising: two optical systems, each of said optical systems including: (a) a magnifying-collimating eyepiece lens having a short focal length, for magnifying the close scene and for collimating light passing through said magnifying-collimating lens; (b) an optical arrangement for directing incident light originating from the close scene and passing through said magnifying-collimating lens into an eye of the viewer, and at the same time, for directing incident light originating from the distant scene into said same eye of the viewer; and (c) a corrective eyepiece lens for compensating for a long distance visual defect, said corrective lens being positioned between said optical arrangement and said same eye of the viewer, wherein said optical arrangement is designed and configured such that the viewer selects the close scene from the plurality of close scenes.
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