Prosecution Insights
Last updated: August 17, 2026
Application No. 18/931,193

OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS

Non-Final OA §102§103§112
Filed
Oct 30, 2024
Priority
Nov 09, 2023 — JP 2023-191325
Examiner
COLLINS, DARRYL J
Art Unit
Tech Center
Assignee
Canon Inc.
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
1259 granted / 1414 resolved
+29.0% vs TC avg
Minimal +5% lift
Without
With
+4.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
30 currently pending
Career history
1430
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
34.7%
-5.3% vs TC avg
§102
41.3%
+1.3% vs TC avg
§112
11.1%
-28.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1414 resolved cases

Office Action

§102 §103 §112
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on October 30, 2024 has been considered by the examiner. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 2 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 2 recites the limitation “the tapered portions” in lies 1-2. There is insufficient antecedent basis for this limitation in the claim. In an effort to promote compact prosecution, the examiner has interpreted “the tapered portions” as “tapered portions provided on edge portions of adjacent lenses”. 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. Claims 1, 5-7, 9-11 and 13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Huang (U.S. Patent Publication 2023/0244060). With regard to independent claim 1, Huang teaches an optical system (page 1, paragraph [0002] and Figure 3A) comprising: a plurality of lenses including a first lens (Figure 3A, element 310), a second lens (Figure 3A, element 320), a third lens (Figure 3A, element 330), a fourth lens (Figure 3A, element 340), a fifth lens (Figure 3A, element 350), and a sixth lens (Figure 3A, element 360) arranged in order from an object side to an image side; and an aperture stop disposed between the first lens and the second lens (Figure 3A, element STO), wherein the following inequalities are satisfied: -0.59 ≤ S23 < 0.00 1.50 ≤ f2 / f ≤ 3.00 where R2i is a radius of curvature of a surface on the image side of the second lens, R3o is a radius of curvature of a surface on the object side of the third lens, S23 = (R2i+R3o)/(R2i-R3o), f is a focal length of the optical system, and f2 is a focal length of the second lens (page 9, Table 9, Focal length data and Radius of curvature data wherein: R2i = -2.638; R3o = 5.171; S23 = -0.32; f2 = 2.97; f = 1.96; and f2/f = 1.52). With regard to dependent claim 5, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the following inequality is satisfied: 1.31 ≤ TTL/ImgH ≤ 2.20 where ImgH is a maximum image height of the optical system, and TTL is an overall length on an optical axis from a surface of the optical system closest to an object to an image plane (page 10, paragraph [0110], wherein: TTL/ImgH = 1.93). With regard to dependent claim 6, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the following inequality is satisfied: 35.0 ≤ νP_2 ≤ 65.0 where νP_2 is an Abbe number based on d-line of a positive lens closest to an object among lenses disposed on the image side of the aperture stop in the plurality of lenses (page 9, Table 5, Abbe number data, wherein the second lens is the closest positive lens to an object among lenses disposed on the image side of the aperture stop in the plurality of lenses and ν2 = 56.00). With regard to dependent claim 7, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to dependent claim 6, and further teaches such an optical system wherein the second lens is the positive lens (page 8, paragraph [0102], line 1). With regard to dependent claim 9, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein at least one of the plurality of lenses is a resin lens (page 8, paragraphs [0101], lines 1-2; [0102], lines 1-2; [0103], lines 1-2; [0104], lines 1-2; and [0105], lines 1-2 and page 9, paragraph [0106], lines 1-2, wherein the lenses are made of plastic, i.e., resin) and at least one of a surface on the object side of the resin lens and a surface on the image side of the resin lens has an aspheric shape (page 8, paragraphs [0101], lines 7-8; [0102], lines 7-8; [0103], lines 7-8; [0104], lines 7-8; and [0105], lines 6-8 and page 9, paragraph [0106], lines 7-8). With regard to dependent claim 10, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein a surface on the object side of a final lens disposed closest to an image plane among the plurality of lenses has a central portion that is convex toward the object side and a peripheral portion that is concave toward the object side, and wherein a surface on the image side of the final lens has a central portion that is concave toward the image side and a peripheral portion that is convex toward the image side (Figure 3A, elements 361 and 362). With regard to dependent claim 11, Huang teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the optical system consists of, in order from the object side to the image side, the first lens (Figure 3A, element 310), the aperture stop (Figure 3A, element STO), the second lens (Figure 3A, element 320), the third lens (Figure 3A, element 330), the fourth lens (Figure 3A, element 340), the fifth lens (Figure 3A, element 350), and a sixth lens as a final lens (Figure 3A, element 360). With regard to independent claim 13, Huang teaches an image pickup apparatus (page 1, paragraph [0002]) comprising an optical system (Figure 3A), and an image sensor configured to image an object through the optical system (page 2, paragraph [0024] and Figure 7, element 2000), wherein the optical system includes: a plurality of lenses including a first lens (Figure 3A, element 310), a second lens (Figure 3A, element 320), a third lens (Figure 3A, element 330), a fourth lens (Figure 3A, element 340), a fifth lens (Figure 3A, element 350), and a sixth lens (Figure 3A, element 360) arranged in order from an object side to an image side; and an aperture stop disposed between the first lens and the second lens (Figure 3A, element STO), wherein the following inequalities are satisfied: -0.59 ≤ S23 < 0.00 1.50 ≤ f2 / f ≤ 3.00 where R2i is a radius of curvature of a surface on the image side of the second lens, R3o is a radius of curvature of a surface on the object side of the third lens, S23 = (R2i+R3o)/(R2i-R3o), f is a focal length of the optical system, and f2 is a focal length of the second lens (page 9, Table 9, Focal length data and Radius of curvature data wherein: R2i = -2.638; R3o = 5.171; S23 = -0.32; f2 = 2.97; f = 1.96; and f2/f = 1.52). Claims 1, 5-7, 10, 12 and 13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Song et al (U.S. Patent Publication 2021/0396970). With regard to independent claim 1, Song et al teaches an optical system (page 1, paragraph [0002] and Figure 3) comprising: a plurality of lenses including a first lens (Figure 3, element E1), a second lens (Figure 3, element E2), a third lens (Figure 3, element E3), a fourth lens (Figure 3, element E4), a fifth lens (Figure 3, element E5), and a sixth lens (Figure 3, element E6) arranged in order from an object side to an image side; and an aperture stop disposed between the first lens and the second lens (Figure 3, element STO), wherein the following inequalities are satisfied: -0.59 ≤ S23 < 0.00 1.50 ≤ f2 / f ≤ 3.00 where R2i is a radius of curvature of a surface on the image side of the second lens, R3o is a radius of curvature of a surface on the object side of the third lens, S23 = (R2i+R3o)/(R2i-R3o), f is a focal length of the optical system, and f2 is a focal length of the second lens (page 7, paragraph [0091], lines 1-2 and Table 3, Focal length data and Curvature radius data wherein: R2i = -3.9116; R3o = 8.0682; S23 = -0.35; f2 = 3.27; f = 1.68; and f2/f = 1.95). With regard to dependent claim 5, Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the following inequality is satisfied: 1.31 ≤ TTL/ImgH ≤ 2.20 where ImgH is a maximum image height of the optical system, and TTL is an overall length on an optical axis from a surface of the optical system closest to an object to an image plane (page 7, paragraph [0091], wherein: TTL = 4.19; ImgH = 1.92; and TTL/ImgH = 2.18). With regard to dependent claim 6, Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the following inequality is satisfied: 35.0 ≤ νP_2 ≤ 65.0 where νP_2 is an Abbe number based on d-line of a positive lens closest to an object among lenses disposed on the image side of the aperture stop in the plurality of lenses (page 7, Table 3, Abbe number data, wherein the second lens is the closest positive lens to an object among lenses disposed on the image side of the aperture stop in the plurality of lenses and νP_2 = 56.1). With regard to dependent claim 7, Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to dependent claim 6, and further teaches such an optical system wherein the second lens is the positive lens (page 7, paragraph [0090], lines 3-4). With regard to dependent claim 10, Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein a surface on the object side of a final lens disposed closest to an image plane among the plurality of lenses has a central portion that is convex toward the object side and a peripheral portion that is concave toward the object side, and wherein a surface on the image side of the final lens has a central portion that is concave toward the image side and a peripheral portion that is convex toward the image side (Figure 3, element E7). With regard to dependent claim 12, Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein the optical system consists of, in order from the object side to the image side, the first lens (Figure 3, element E1), the aperture stop (Figure 3, element STO), the second lens (Figure 3, element E2), the third lens (Figure 3, element E3), the fourth lens (Figure 3, element E4), the fifth lens (Figure 3, element E5), a sixth lens (Figure 3, element E6), and a seventh lens as a final lens (Figure 3, element E7). With regard to independent claim 13, Song et al teaches an image pickup apparatus (page 1, paragraph [0002]) comprising an optical system (Figure 3), and an image sensor configured to image an object through the optical system (page 13, paragraph [0119]), wherein the optical system includes: a plurality of lenses including a first lens (Figure 3, element E1), a second lens (Figure 3, element E2), a third lens (Figure 3, element E3), a fourth lens (Figure 3, element E4), a fifth lens (Figure 3, element E5), and a sixth lens (Figure 3, element E6) arranged in order from an object side to an image side; and an aperture stop disposed between the first lens and the second lens (Figure 3, element STO), wherein the following inequalities are satisfied: -0.59 ≤ S23 < 0.00 1.50 ≤ f2 / f ≤ 3.00 where R2i is a radius of curvature of a surface on the image side of the second lens, R3o is a radius of curvature of a surface on the object side of the third lens, S23 = (R2i+R3o)/(R2i-R3o), f is a focal length of the optical system, and f2 is a focal length of the second lens (page 7, paragraph [0091], lines 1-2 and Table 3, Focal length data and Curvature radius data wherein: R2i = -3.9116; R3o = 8.0682; S23 = -0.35; f2 = 3.27; f = 1.68; and f2/f = 1.95). Claim Rejections - 35 USC § 103 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 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 9 is rejected under 35 U.S.C. 103 as being unpatentable over Song et al (U.S. Patent Publication 2021/0396970), in view of Yao et al (U.S. Patent Publication 2019/0331900). With regard to dependent claim 9, although Song et al teaches all of the claimed limitations of the instant invention as outlined above with respect to independent claim 1, and further teaches such an optical system wherein at least one of a surface on the object side of the a lens and a surface on the image side of a lens has an aspheric shape (page 7, Table 3, Surface type data, wherein all surfaces are aspheric), Song et al fails to teach such an optical system wherein at least one of the plurality of lenses is a resin lens. In a related endeavor, Yao et al teaches an optical system comprising at least six lenses (page 1, paragraph [0001] and Figure 1), wherein the lenses may be constructed of resin (page 5, paragraph [0084]), such that it would have been obvious to one of ordinary skill in the art before the effective filing date of the instant invention to modify the optical system, as taught by Song et al, with the resin lens, as taught by Yao et al, to provide a material having good light transmission. It should also be noted that it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as known alternative (In re Leshin, 125 USPQ 416). Allowable Subject Matter Claim 2 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. Claims 3, 4 and 8 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: The prior art taken either singularly or in combination fails to anticipate or fairly suggest the limitations of the independent claims, in such a manner that a rejection under 35 U.S.C. §102 or §103 would be proper. Although Huang teaches an optical system (page 1, paragraph [0002] and Figure 3A) comprising: a plurality of lenses including a first lens (Figure 3A, element 310), a second lens (Figure 3A, element 320), a third lens (Figure 3A, element 330), a fourth lens (Figure 3A, element 340), a fifth lens (Figure 3A, element 350), and a sixth lens (Figure 3A, element 360) arranged in order from an object side to an image side; and an aperture stop disposed between the first lens and the second lens (Figure 3A, element STO), wherein the following inequalities are satisfied: -0.59 ≤ S23 < 0.00 1.50 ≤ f2 / f ≤ 3.00 where R2i is a radius of curvature of a surface on the image side of the second lens, R3o is a radius of curvature of a surface on the object side of the third lens, S23 = (R2i+R3o)/(R2i-R3o), f is a focal length of the optical system, and f2 is a focal length of the second lens (page 9, Table 9, Focal length data and Radius of curvature data wherein: R2i = -2.638; R3o = 5.171; S23 = -0.32; f2 = 2.97; f = 1.96; and f2/f = 1.52), as claimed in independent claim 1, Huang fails to teach such an optical system: wherein tapered portions provided on edge portions of adjacent lenses in the plurality of lenses contact each other, the following inequality is satisfied: 0.00 < cosθ ≤ 0.77, as defined dn claimed in dependent claim 2; simultaneously satisfying the conditional expression: 1.66 ≤ dE23/d23 ≤ 4.56, s claimed and defined in dependent claim 3; simultaneously satisfying the conditional expression: 0.40 ≤ dE34/d34 ≤ 2.00, as claimed and defined in dependent claim 4; or simultaneously satisfying the conditional expression: -0.20 ≤ Sag2/Ea2 < 0.00, as claimed and defined in dependent claim 8. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Shim (U.S. Patent Publication 2025/0189761), Chae (U.S. Patent Publication 2024/0345369), Wang (U.S. Patent Publication 2023/0020801), Shi (U.S. Patent Publication 2022/0137350), Dou (U.S. Patent Publication 2022/0091382), Tang et al (U.S. Patent Publication 2019/0346663) and Hsu et al (U.S. Patent Publication 2014/0043695) all teach optical systems comprising at least six lenses. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DARRYL J COLLINS whose telephone number is (571) 272-2325. The examiner can normally be reached M-Th 5:30 a.m. - 4:00 p.m. 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, Ricky L Mack can be reached at 571-272-2333. 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. /DARRYL J COLLINS/Primary Examiner, Art Unit 2872 30 July 2026
Read full office action

Prosecution Timeline

Oct 30, 2024
Application Filed
Aug 03, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
89%
Grant Probability
94%
With Interview (+4.9%)
2y 0m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1414 resolved cases by this examiner. Grant probability derived from career allowance rate.

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