Prosecution Insights
Last updated: October 01, 2026
Application No. 18/730,412

WAVELENGTH AND DIFFRACTIVE MULTIPLEXED EXPANSION OF FIELD OF VIEW FOR DISPLAY DEVICES

Final Rejection §102§103
Filed
Jul 19, 2024
Priority
Jan 21, 2022 — provisional 63/301,577 +1 more
Examiner
GAGNON, GRANT A
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Arizona Board of Regents on Behalf of the University of Arizona
OA Round
2 (Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
395 granted / 477 resolved
+14.8% vs TC avg
Moderate +8% lift
Without
With
+7.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
32 currently pending
Career history
509
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
44.4%
+4.4% vs TC avg
§102
42.6%
+2.6% vs TC avg
§112
5.1%
-34.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 477 resolved cases

Office Action

§102 §103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Information Disclosure Statement The IDS filed to date have been considered. Response to Arguments Applicant's arguments filed 07/08/2026 have been fully considered but they are not persuasive. With regard to the applicant argument that the prior art does not teach: Breaking down an image into sub-images sending them over a data-channel and then reconstructing the sub-images into one whole image and then displaying the image to a user. The examiner respectfully disagrees: While the applicant might understandably argue the distinction between the instant inventions image and sub-images, and those of the prior arts high res foveal image and low res peripheral image, the fact of the matter is these are two images one with a high resolution focused FOV and one of a low resolution peripheral FOV, the two images while similar have different focuses, and could be construed as a high res sub-image of the overall low res image. As the limitations are silent with respect to how many sub-images, whether the images overlap and whether or not any of the images may be a full image, the rejection is believed to be proper with regards to the sub-images as well as transfer and reconstruction of the two images for display by the user. Therefore, at this time the rejection is believed to be proper and has been restated below. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-4, and 6-9 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Eash (US 20200310145) herein after referred to as D1. With regard to claim 1, D1 teaches a method for transferring an image over an angularly bandlimited optical data channel, in at least (fig. 5); comprising: defining a plurality of sub-images ([0055]; Foveal image and field image; [0090]; this sub-system has intermediate optical elements. In one embodiment, these intermediate optical elements include a micro-lens array) that together make up an original image (510, Foveal display panel) to be transferred over the angularly bandlimited optical data channel (waveguide 580), wherein each of the sub-images have a field-of-view (FOV) ([0090]; manipulate FOV, and micro-lens array) less than a FOV of the original image (Foveal display panel 510 and [0090]; manipulate the FOV or focus of the image. In one embodiment, this sub-system has intermediate optical elements. In one embodiment, these intermediate optical elements include a micro-lens array; the micro-lens array naturally having a smaller FOV than that of the original image) and is able to be transferred through the data channel (532 virtual image of foveal display); generating the sub-images ([0090]; microlenses; used to create multiple sub images from the original image) from the original image (510, Foveal display panel) such that the sub-images are able to be transferred (535; transferred through final optics) into the data channel (580) using (i) time multiplexing ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing.) and (ii) wavelength and/or polarization multiplexing ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing.) such that the sub-images ([0090]; microlenses; used to create multiple sub images from the original image) are spatially superimposed (532, virtual image) while traversing the optical data channel (580); transferring the spatially superimposed (532) sub-images into (incoupled at 540 and 560) the optical data channel (580); outcoupling (580; waveguide output coupler) the spatially superimposed (532) sub-images from the optical data channel (580); and spatially expanding the outcoupled spatially superimposed (532) sub-images ([0090; microlenses) to reconstruct the original image (510, Foveal display panel) using a wavelength and/or polarization demultiplexing device ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing; and by extension demultiplexing). With regard to claim 2, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); wherein the wavelength and/or polarization ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing; and by extension demultiplexing). demultiplexing device ([0044]) is configured to angularly direct each of the sub-images ([0090]; microlenses) to a designated FOV ([0080], and [0090]) of the original image (510, Foveal display panel) to thereby reconstruct the original image 510, Foveal display panel). With regard to claim 3, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 2, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); wherein the wavelength and/or polarization demultiplexing device ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing; and by extension demultiplexing) includes at least a plurality of volume holographic gratings (VHGs) ([0082]; diffractive element is a surface relief grating) arranged one over another (540, 560). With regard to claim 4, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 3, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); wherein the wavelength and/or polarization demultiplexing device ([0044]; One embodiment of using a single display per eye for both foveal and field displays utilizes polarization and time multiplexing; and by extension demultiplexing) further includes a polarization sensitive device ([0031]). With regard to claim 6, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); wherein the optical data channel (580) is an image guide device in which the spatially superimposed (532) sub-images undergo total internal reflection (580, waveguide reflects images from incouplers 540 and 560 internally to output coupler). With regard to claim 7, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 6, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); wherein the image guide device (580) is incorporated in an augmented reality near-eye device ([0078]). With regard to claim 8, D1 teaches an optical device, in at least (fig. 5) comprising: a first volume holographic grating (VHG) (element 540, and [0076], [0079], and [0082]) configured to angularly direct a first optical wavelength (510) in a first specified angular direction ([0070; one direction, other direction) without interacting with at least a second optical wavelength (550); and a second volume holographic grating (VHG) (560) arranged to receive the second optical wavelength (550) after traversing the first VHG (540) and being configured to angularly direct the second optical wavelength (550) in a second specified angular direction ([0070; one direction, other direction) without interacting with at least the first optical wavelength (510). With regard to claim 9, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 8, wherein D1 further teaches, a wavelength and diffractive multiplexed expansion of field of view for display devices, in at least (fig. 5); further comprising a polarization sensitive device ([0031]) configured to direct the first optical wavelength (510) having a first polarization state ([0044]) in a third specified angular direction ([0070; one direction, other direction) and direct the second optical wavelength (550) having a second polarization state ([0044]) orthogonal to the first polarization state ([0044]) in a fourth specified angular direction ([0070; one direction, other direction). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 5 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Eash (US 20200310145) herein after referred to as D1 as applied to claims 4 and 9 respectively, and further in view of Hudman (US20210247611) herein after referred to as D2. With regard to claim 5, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 4, wherein D1 does not expressly disclose wherein the polarization sensitive device is a wire grid polarizer. In a related endeavor, D2 teaches a polarization compensation device with wire grid polarizer for head mounted display systems, in at least (fig. 5); wherein the polarization sensitive device is a wire grid polarizer (522). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the invention of D1 with the wire grid polarizer of D2 for the purpose of providing a polarization optic with a smaller form factor. With regard to claim 10, D1 teaches all of the claimed limitations of the instant invention as have been outlined above with respect to claim 9, wherein D1 does not expressly disclose wherein the polarization sensitive device is a wire grid polarizer. In a related endeavor, D2 teaches a polarization compensation device with wire grid polarizer for head mounted display systems, in at least (fig. 5); wherein the polarization sensitive device is a wire grid polarizer (522). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the invention of D1 with the wire grid polarizer of D2 for the purpose of providing a polarization optic with a smaller form factor. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GRANT A GAGNON whose telephone number is (571)270-0642. The examiner can normally be reached M-F 7:30-5:30. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Bumsuk Won can be reached at (571) 272-2713. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /GRANT A GAGNON/ Examiner, Art Unit 2872 /BALRAM T PARBADIA/Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Jul 19, 2024
Application Filed
Apr 08, 2025
Response after Non-Final Action
Apr 22, 2026
Non-Final Rejection mailed — §102, §103
Jul 08, 2026
Response Filed
Sep 22, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12742955
DIGITAL PATHOLOGY APPARATUS HOUSING WITH RAIL SYSTEM, SPEAKERLESS AUDIO SYSTEM, AND ELECTROMAGNETIC RADIATION SHIELDING
4y 7m to grant Granted Sep 22, 2026
Patent 12704714
OPTICAL SYSTEM AND VIRTUAL REALITY DEVICE
3y 10m to grant Granted Aug 11, 2026
Patent 12687733
POLARIZATION SPLITTING DEVICE, POLARIZATION SPLITTING STRUCTURE AND PROJECTION DEVICE
4y 0m to grant Granted Jul 21, 2026
Patent 12681271
Lens Assembly
2y 0m to grant Granted Jul 14, 2026
Patent 12638743
Electrically-reconfigurable high quality factor metasurfaces for dynamic wavefront shaping
3y 2m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
83%
Grant Probability
91%
With Interview (+7.8%)
2y 7m (~4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 477 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month