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Lucent 隐私政策 / Lucent Privacy Policy

最后更新：2026 年 10 月 24 日 · 生效：2026 年 8 月 13 日 Last updated: October 24, 2026 · Effective: August 13, 2026

一句话版本：Lucent 的测光、计时和记录在设备本地处理，不会自动上传相机画面或个人记录。反馈邮件与外部网页仅由你主动打开。 In short: Lucent processes measurements, timers, and records on your device. It does not automatically upload camera frames or personal records. You choose whether to open feedback email or external webpages.

一、我们收集的信息 / 1. Information We Collect

1.1 相机 / 1.1 Camera

Lucent needs camera access to estimate ambient light and compare the screen with its surroundings.

Lucent needs camera access to estimate ambient light and compare the screen with its surroundings.

关于相机使用，请明确以下几点： A few important things to know about camera use:

  • Lucent 不拍摄照片，不录制视频，不保存任何图像 Lucent does not take photos, record video, or save images.
  • 相机画面仅在设备本地实时处理，环境照度根据相机曝光数据估计，不是经校准的专业照度测量 Camera frames are processed in real time on your device. Ambient illuminance is estimated from camera exposure data, not measured with a professionally calibrated light meter.
  • 屏幕检测功能会短暂显示相机预览画面，该画面不被存储，不离开设备 The screen check briefly displays a camera preview. That preview is not stored and never leaves your device.
  • 新的环境光读数只在前台实时页可见或主动记录当前环境时采集；屏幕对比另有前台相机采集。计时页、锁屏实时活动和后台不持续测光 New ambient-light readings are captured only when foreground Live is visible or you request a fresh environment entry. Screen comparison has separate foreground camera capture. The Timer page, Lock Screen Live Activity, and background operation do not continuously meter light.

1.2 你在 App 内产生的数据 / 1.2 Data You Create in the App

  • 光照采样片段：起止时间、该片段的代表照度（中位数）、所属档位 Light samples: start and end times, representative illuminance (the median), and the assigned light band.
  • 手动打点：时刻、当时的照度、你选择的场景标签（书桌 / 床头 / 窗边 / 教室 / 户外） Manual entries: the time, the light reading at that time, and the scene label you choose (desk, bedside, window, classroom, or outdoors).
  • 设置偏好：建议模型档位、基线间隔、专注模式联动开关、休息提醒穿透开关 Preferences: the suggestion model, baseline interval, Focus mode integration, and whether break reminders can interrupt Focus.

All of this data is stored locally on your device (in the app’s Application Support directory and system preferences). It is never sent to a server.

All of this data is stored locally on your device (in the app's Application Support directory and system preferences). It is not sent to a server.

1.3 我们不收集的信息 / 1.3 Information We Do Not Collect

  • App 不自动采集姓名、邮箱、电话号码等身份信息；主动发送的支持邮件见下文 The app does not automatically collect identifying information such as your name, email address, or phone number. Voluntary support email is described below.
  • 不收集广告标识符（IDFA），不做任何形式的追踪 We do not collect your advertising identifier (IDFA) or track you.
  • 不收集位置信息 We do not collect location data.
  • 不生成、不上传设备标识符 We do not create or upload device identifiers.
  • 不含第三方分析 SDK、广告 SDK 或崩溃收集 SDK Lucent contains no third-party analytics, advertising, or crash-reporting SDKs.
  • 没有账号体系，不需要注册或登录 Lucent has no account system; you do not need to register or sign in.

1.4 主动反馈与外部链接 / 1.4 Voluntary Feedback and External Links

点击反馈只会打开预填支持邮箱和主题的邮件草稿，不会自动发送，也不自动附加日志、诊断文件或个人记录。只有你决定发送时，邮件服务才会将发件地址、正文及你主动提供的内容传送至支持邮箱。我们使用这些邮件处理你的支持问题。

Tapping Feedback opens a draft with the support recipient and subject. It does not send automatically or attach logs, diagnostics, or personal records. Only if you choose to send will your mail service deliver your sender address, message, and any content you choose to provide to the support inbox. We use these emails to handle your support request.

你主动打开支持、隐私或其他外部链接时，由系统浏览器连接对应网站。邮件及浏览器服务按各自的规则处理数据；这不代表 Lucent 在后台上传相机画面或记录。

When you choose to open support, privacy, or other external links, the system browser connects to the selected website. Mail and browser services handle data under their own rules. This does not mean Lucent uploads camera frames or records in the background.

二、信息的使用 / 2. How Information Is Used

Data created on your device is used only to:

Data created on your device is used only to:

  • 在 App 内展示你的用眼环境记录 Show your visual-environment history in the app.
  • 计算建议的休息间隔 Calculate suggested break intervals.
  • 生成你主动发起的 CSV 导出文件 Create a CSV file when you choose to export one.

三、信息的共享 / 3. Sharing

Lucent 的核心测光、计时和历史记录在本机处理，不依赖 Lucent 服务器，也不自动上传这些内容。

Lucent processes core measurements, timers, and history on your device without a Lucent server or automatic upload of that content.

核心功能可离线使用；你主动发送反馈邮件、打开外部网页或分享导出文件时，会由相应的系统服务处理，并需要该服务所需的网络连接。

Core functionality works offline. If you choose to send feedback email, open external webpages, or share exported files, the relevant system service handles the operation and requires any network access that service needs.

CSV 导出文件由 iOS 系统分享面板处理。是否分享、分享给谁以及分享内容由你决定；Lucent 不会自动发送该文件。

The iOS share sheet handles CSV exports. You choose whether to share, the recipient, and the content. Lucent does not send the file automatically.

四、通知 / 4. Notifications

Lucent’s break reminders are local iOS notifications scheduled by your device. There are no remote push notifications, and the app has no push certificate.

Lucent's break reminders are local notifications scheduled by your device. There are no push notifications, and the app has no push certificate.

If you do not grant notification permission, Lucent’s timer still works from its fixed baseline; it simply will not send reminders.

If you do not grant notification permission, the timer still works with its fixed baseline; Lucent simply will not send reminders.

五、数据的存储与删除 / 5. Storage and Deletion

  • 所有数据保存在你的设备上，随 App 的沙盒受 iOS 系统级数据保护 All data is stored on your device and protected by iOS data protection within the app sandbox.
  • 删除 App 即删除全部数据，包括采样记录、打点和所有设置 Deleting the app deletes all data, including samples, manual entries, and preferences.
  • 当前版本的 App 内没有「一键清除全部记录」的入口。要彻底清除，请删除 App The current app does not have a “delete all records” button. Delete the app to remove everything.

六、儿童隐私 / 6. Children's Privacy

Lucent 不面向 13 岁以下儿童，不会有意通过 App 收集儿童的个人信息。

Lucent is not directed to children under 13 and does not knowingly collect children's personal information through the app.

The app’s “Child” setting is a suggested-model option that shortens break intervals. It is not an account type and does not involve collecting or processing children’s data.

The “Children” option in the app is a suggestion-model setting that makes break intervals more frequent. It is not an account type and does not involve collecting or processing children's data.

七、健康与测量免责声明 / 7. Health and Measurement Disclaimer

  • Lucent 提供的休息间隔建议是 Lucent 自有的模型，参考 20-20-20 原则并按环境照度调整。它不是医学标准，不构成诊断、治疗或医疗建议。如有视力或眼部健康问题，请咨询专业眼科医生。 Lucent's break intervals are suggestions from Lucent's own model, inspired by the 20-20-20 rule and adjusted for ambient light. They are not a medical standard and are not medical advice, diagnosis, or treatment. Consult an eye-care professional about vision or eye-health concerns.
  • 照度读数是根据相机曝光数据计算的估计值，不是经校准的照度计测量结果，不适用于任何需要精确照度测量的场合。 Light readings are estimates calculated from camera exposure data, not measurements from a calibrated light meter. Do not use them where precise illuminance measurements are required.
  • 屏幕检测输出的是屏幕与环境的对比比值，不是屏幕的绝对亮度（nit）。自发光屏幕的绝对亮度无法通过本方法诚实得出。 The screen check reports a screen-to-ambient contrast ratio, not the screen's absolute brightness in nits. This method cannot reliably determine the absolute brightness of an emissive display.

八、政策变更 / 8. Changes to This Policy

If this policy changes, we will update this page and the “Last updated” date at the top.

If this policy changes, we will update this page and revise the “Last updated” date at the top.

九、联系我们 / 9. Contact

十、适用法律 / 10. Governing Law

This Privacy Policy is governed by the laws of the People’s Republic of China.

This Privacy Policy is governed by the laws of the People's Republic of China.