LumiScreen app for iPhone and iPad

LumiScreen 993311, the first of its kind in the App Store, helps you measure luminance distribution and color temperature when reading on-screen, guiding you to set a comfortable visual environment for work, study, game, and entertainment across screens like tablets, notebooks, monitors, TVs, projectors, and even mobile phones.

Try it for free for 7 days, and enjoy the freedom to stop at any moment!"

1. LumiScreen 993311 turns the iPhone camera into a luminance meter and color meter, enabling iPhone users to measure the luminance and color temperature of screens and environments.
2. LumiScreen 993311 collects recommendations for luminance distribution from around the world to provide guidelines for iPhone users to digitally and accurately set a comfortable visual environment.
3. LumiScreen 993311 saves users hundreds, if not thousands, of dollars by eliminating the need to purchase professional meters for the same purposes.
4. Annual calibration services are provided for every supported model to maintain accuracy at its best possible level. *993311 is just a number for easy remembering, one can select the best option from a range.
5. Do not consider it as lab equipment; it is for consumers to check and set the luminance distribution of their screens.
6. The number 993311 is just for giving a number for easy remembering, one could select from a range of options.




As heavy screen users, we have realized that luminance distribution of screens can make a huge difference to our eyes, and we have made all efforts to find recommendations on the internet. Unfortunately, there are no clear recommendations available anywhere. The only one that comes close is illuminance distribution for reading on paper in educational buildings. We have taken those recommendations and turned them into an equivalent visual luminance distribution, based on the assumption that the textbook reflective rate is an average of 77.5%, the reflective rate of surround and background is an average of 40%..

The SLL Code for Lighting by The Society of Light and Lighting (2.1.3, 2.1.4, 2.1.5)
Relationship of illuminances on immediate surroundings to the illuminance on the task area: 500Lux for >750Lux, 300 for 500Lux, 200lux for 300lux, 150lux for 200lux …
The background shall be illuminated with a maintained illuminance of 1⁄3 of the value of the immediate surrounding area.
Please refer to https://www.cibse.org/get-involved/societies/society-of-light-and-lighting-sll

Subscription
1. You can start your free 7-day trial by downloading the app from the App Store and then subscribing to our annual plan inside the app.
2. Subscription will give you quarterly accuracy calibration within the subscription duration
3. Payment will be charged to iTunes account at confirmation of purchase
4. Your subscription will automatically renew unless auto-renew is turned off at least 24-hour prior to the end of the current period
5. Your account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
6. Your subscriptions can be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
7. No cancellation of the current subscription is allowed during the active subscription period
8. Any unused portion of the free workouts will lapse once you purchase any subscription.
9. Privacy Policy link goes here: https://doc-hosting.flycricket.io/privacy-policy/10e05c5a-437b-41bb-acb0-d17e40343c04/privacy
10. Terms of Use link goes here: https://doc-hosting.flycricket.io/term-of-user/1dcdc237-9113-4952-acec-4e9e42eec604/terms

This app (“App”) provides only information for educational purposes. This App is not medical or treatment advice, professional diagnosis, opinion, or services – and may not be treated as such by the user. Please seek a doctor’s advice in addition to using this app and before making any medical decisions.