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International application No. Applicant's or agent's file reference
PCT/US2018/020311 P33683WO1
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
28 February 2018 07 March 2017
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

An electronic device such as a head-mounted display may have a display system that produces images. The display system may have one or more pixel arrays (26-1, 26-2) such as liquid-crystal-on-silicon pixel arrays. Images from the display system may be coupled into a waveguide (116) by an input coupler system (114X, 114Y) and may be coupled out of the waveguide in multiple image planes using an output coupler system (120X, 120Y). The input and output coupler systems may include single couplers, stacks of couplers, and tiled arrays of couplers. Multiplexing techniques such as wavelength multiplexing, polarization multiplexing, time-division multiplexing, multiplexing with image light having different ranges of angular orientations, and/or tunable lens techniques may be used to present images to a user in multiple image planes.

6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     8    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     G02B 6/34 (2006.01)i; G02B 27/01 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
WO 2013188464 A1 (MAGIC LEAP INC [US]) 19 December 2013 (2013-12-19)
paragraphs [0036], [0038], [0047], [0049], [0057]
EP 2196729 A1 (BAE SYSTEMS PLC [GB]) 16 June 2010 (2010-06-16)
column 9, line 55 - column 10, line 2; figure 9
paragraphs [0018], [0022], [0036]
column 10, line 7 - line 13
WO 03027569 A1 (KONINKL PHILIPS ELECTRONICS NV [NL]) 03 April 2003 (2003-04-03)
page 27, line 1 - line 4
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
WO 2013188464 A1
19 December 2013
AU 2013274359 A1
AU 2017202843 A1
CA 2876335 A1
CN 104737061 A
CN 107817555 A
CN 107817556 A
EP 2859403 A1
JP 6238974 B2
JP 2015528919 A
JP 2017223998 A
KR 20150018879 A
NZ 702897 A
US 2014003762 A1
WO 2013188464 A1
22 January 2015
25 May 2017
16 December 2013
24 June 2015
20 March 2018
20 March 2018
15 April 2015
29 November 2017
01 October 2015
21 December 2017
24 February 2015
31 March 2017
02 January 2014
19 December 2013
EP 2196729 A1
16 June 2010
WO 03027569 A1
03 April 2003
CN 1559000 A
EP 1432949 A1
JP 2005504413 A
KR 20040039400 A
US 2003067760 A1
WO 03027569 A1
29 December 2004
30 June 2004
10 February 2005
10 May 2004
10 April 2003
03 April 2003
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
28 August 2018
Date of mailing of the international search report:
04 September 2018
Authorized officer:
Soulaire, Denis
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