No Need for Your Mobile Device to Mess with Your Sleep: Custom-cut Filters Now Available

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Blue light blocking filters from Photonic Developments LLC remove the light that suppresses melatonin and lets people sleep well even when they use these devices in the evening.

Because of popular demand, the custom cut filters for all kinds of electronic devices have now been added to the website. The customer has only to accurately measure the active face of the device and provide the information to the staff. For iPhone and tablets, it is suggested the measurements should be to the closest 1/16 inch. Filters for large flat screen TVs are also available up to 59 inches diagonal measurement.

The filter material is vinyl and adheres well to any clean, smooth surface without the need for any adhesive. If it becomes dirty, it may be washed with soap and water. That returns it to its original condition. It blocks all light from the UV to about 500nm (blue-green). The filter does not interfere with the operation of the devices because it transmits all the other colors. It also is so thin that it doesn’t interfere with touch screen operation.

The prices of the filters depends on the size and varies from about $12 to about $130 plus shipping and handling. Some filters are not available overseas. Be sure to measure accurately since the filters are not refundable, if the error is on the part of the customer.

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Richard Hansler
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