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Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2016/062896 G15018-PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
18 November 2016 25 November 2015
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.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     2    
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 27/01 (2006.01)i; G06F 3/01 (2006.01)i; G02B 27/00 (2006.01)i; G02B 27/14 (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):
     G02B; G06F
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):
EPO-Internal, WPI Data


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2001009478 A1 (YAMAZAKI SHOICHI [JP] ET AL) 26 July 2001 (2001-07-26)
paragraph [0091]; figure 14
paragraph [0094]
US 2015049013 A1 (RAHMAN MD SAZZADUR [US] ET AL) 19 February 2015 (2015-02-19)
paragraph [0038]; figure 7
WO 2015143073 A1 (INTUITIVE SURGICAL OPERATIONS [US]) 24 September 2015 (2015-09-24)
figures 2A, 4B
figures 3a, 3b
US 2013128364 A1 (WHEELER AARON JOSEPH [US] ET AL) 23 May 2013 (2013-05-23)
figure 3B
figures 7A, 7B
JANNICK ROLLAND AND OZAN CAKMAKCI, "The Past, Present, and Future of Head Mounted Display Designs", SPIE, PO BOX 10 BELLINGHAM WA 98227-0010 USA,Vol. 5638, 10 February 2005 (2005-02-10), page 368-377,
figure 3
US 2001005185 A1 (ENDO TAKESHI [JP] ET AL) 28 June 2001 (2001-06-28)
figure 2
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
US 2001009478 A1
26 July 2001
US 7262919 B1
US 7345822 B1
US 7355795 B1
US 2001009478 A1
US 2007247730 A1
US 2008055735 A1
US 2008094719 A1
US 2008094720 A1
28 August 2007
18 March 2008
08 April 2008
26 July 2001
25 October 2007
06 March 2008
24 April 2008
24 April 2008
US 2015049013 A1
19 February 2015
US 2015049013 A1
WO 2015026842 A1
19 February 2015
26 February 2015
WO 2015143073 A1
24 September 2015
EP 3119343 A1
WO 2015143073 A1
25 January 2017
24 September 2015
US 2013128364 A1
23 May 2013
CN 104067160 A
EP 2783252 A2
US 2013128364 A1
US 2014055846 A1
WO 2013077978 A2
24 September 2014
01 October 2014
23 May 2013
27 February 2014
30 May 2013
US 2001005185 A1
28 June 2001
JP 2001186442 A
US 2001005185 A1
06 July 2001
28 June 2001
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:
27 January 2017
Date of mailing of the international search report:
10 February 2017
Authorized officer:
Linke, Felix
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