大立光在今年完成第七度購地擴廠，累計投入資本高達 80.78 億元，並於 9 月正式建立光纖陣列（FAU）試產線，正式跨入AI資料中心光通訊領域。這項擴產動作標誌著全球手機鏡頭龍頭正全力開闢第二條成長曲線，試圖擺脫消費性電子產品的週期束縛。雖然第 3 季受惠於旗艦手機拉貨潮，預估單季營收達到 178.89 億元、季增 30.92%，稅後純益預期達 62.67 億元，但資本市場的關注焦點已迅速轉向其超精密光學技術在共同封裝光學（CPO）中的戰略定位，這將直接決定其未來估值能否跳脫純硬體代工框架。Largan Precision completed its seventh land acquisition for factory expansion this year, bringing its cumulative capital outlay to NT$8.078 billion, and officially set up a Fiber Array Unit (FAU) pilot line in September to enter the AI data center optical communications arena. The expansion marks a decisive push by the world's leading smartphone lens maker to build a secondary growth engine and extricate itself from the cyclical volatility of consumer electronics. While the third-quarter flagship smartphone build cycle lifted quarterly revenue to an estimated NT$17.889 billion—up 30.92% sequentially—with net profit projected at NT$6.267 billion, capital markets are now primarily focused on how its ultra-precision optical capabilities translate into Co-Packaged Optics (CPO), which will dictate whether its valuation multiple can decouple from a traditional hardware contract-manufacturing framework.

手機鏡頭旺季帶動獲利穩健修復Smartphone Peak Season Drives Solid Profit Recovery

第 3 季傳統手機鏡頭拉貨動能強勁，單季每股盈餘預估達到 47.91 元，帶動 2026 年全年營收展望攀升至 653.47 億元、年增 6.87%，稅後純益估達 238.33 億元，每股盈餘上看 179.64 元。然而，智慧型手機鏡頭的規格升級邊際效益正在遞減，單純依賴蘋果等旗艦客戶的訂單週期，難以支撐長期的估值擴張。大立光選擇將長年累積的超微精密加工技術，轉化為生產光纖陣列的核心能力，使精密光學零組件得以切入AI運算節點之間的資料傳輸通道。這項戰略布局顯示，成熟光學製程正在尋找高附加價值的替代出口。Strong seasonal momentum in handset lenses is driving an estimated third-quarter EPS of NT$47.91, lifting full-year 2026 revenue projections to NT$65.347 billion, up 6.87% year-over-year. Net profit is expected to reach NT$23.833 billion, yielding an EPS of NT$179.64. However, the marginal returns from smartphone lens upgrades are diminishing, and relying solely on the procurement cycles of marquee accounts like Apple cannot sustain multiple expansion over the long haul. In response, Largan is pivoting the micro-precision fabrication know-how it cultivated over decades into optical fiber arrays, deploying precision optical components directly into the data pipelines linking AI compute nodes. This strategic maneuver underscores mature optical engineering's search for higher-margin industrial outlets.

光纖陣列產線成形重構估值模型Fiber Array Pilot Lines Reshape Valuation Model

隨著 9 月FAU試產線就位，大立光規畫於 2027 年 1 月推進客戶訂單，並於上半年正式啟動商業化量產放量。共同封裝光學技術要求光纖與光電晶片在微米級精準度下完成耦合對準，這正是大立光過去在模具開發與微型元件裝配累積的核心護城河。市場過去給予大立光的本益比多受制於消費性硬體組裝格局，但一旦光通訊元件成功進入雲端服務商的AI資料中心供應鏈，營收組合將實質改善。這不僅開闢了高階鏡頭以外的新現金流，也讓市場對其 2026 年至 2027 年間的獲利成長品質產生重估動能。With its FAU pilot line operational as of September, Largan plans to advance customer engagements in January 2027 and ramp commercial mass production in the first half of that year. Co-Packaged Optics requires coupling and aligning optical fibers and photonic integrated circuits with micron-level tolerances—a direct match for Largan's historic moats in ultra-precision tooling and miniature component assembly. Historically, Largan's price-to-earnings multiple was capped by its identity as a consumer electronics hardware supplier; qualifying components for cloud hyperscalers' AI data centers would fundamentally upgrade its revenue quality. Such a transition would not only unlock fresh cash flow independent of mobile lenses, but also drive an institutional re-rating of its earnings trajectory across 2026 and 2027.

製程良率與認證週期成轉型考驗Yield Rates and Qualification Cycles Test Transformation

新舊業務的交替過程並非毫無阻礙。在傳統手機鏡頭端，旗艦機種若因零組件供應鏈問題導致出貨時程遞延，將削弱下半年的營運成長幅度；同時，可變光圈等高階複雜結構鏡頭的生產難度提升，一旦量產良率不如預期，將侵蝕原已承壓的毛利率水準。在光通訊端，FAU元件必須承受資料中心內部長期高溫運作環境，並維持微米等級的結構穩定度。面對美系雲端巨頭嚴苛的驗證標準，新產品的認證週期往往漫長且存在變數，若驗證進度不如預期，商業化量產的時間點恐將向後推遲。The operational handover between old and new business segments is not without risk. On the legacy handset side, any component supply bottleneck that postpones flagship launch cadences would blunt second-half operational upside; simultaneously, the rising manufacturing complexity of advanced mechanisms like variable apertures risks denting gross margins if production yields fall short. On the optical communications front, FAU modules must endure sustained high temperatures inside hyperscale facilities while maintaining structural stability at the micron scale. Subject to stringent validation standards from U.S. cloud titans, qualification cycles are notoriously protracted and volatile, meaning any developmental snag could push the commercial production timeline further out.

大立光的戰略重心已從手機鏡頭防守戰，轉向AI光傳輸的技術卡位戰。本刊判斷，其估值中樞的上移將不再取決於單一季度的手機拉貨數字，而是光學技術向CPO領域遷移的確定性。後續應密切觀察管理層在法說會中對光纖陣列送樣進度與雲端客戶認證動態的說明，這將是檢驗第 2 成長曲線是否如期兌現的關鍵指標。Largan's corporate focus has evolved from defending its smartphone lens turf to establishing a technical foothold in AI optical interconnects. We believe multiple expansion will no longer be dictated by quarterly handset shipping data, but by the execution milestones of porting its optical prowess over to CPO. Key items to track during upcoming earnings calls include management commentary on FAU sample evaluations and hyperscaler qualification progress, which will serve as the litmus test for whether this secondary growth engine materializes on schedule.