Blocking element of short wavelengths in LED-type light sources
Method, product and blocking element of short wavelengths in LED-type light sources consisting of a substrate with a pigment distributed on its surface and, in that said pigment has an optical density such that it allows the selective absorption of short wavelengths between 380 nm and 500 nm in a range between 1 and 99 %.
1. An electronic device comprising:
a light-emitting diode (“LED”) display;
a memory;
a processor coupled to the memory and configured to:
determine, by detection or a user input, a plurality of factors comprising:
one condition of lowest ambient lighting during use of the electronic device selected from photopic, mesopic, or scotopic;
total time a user is exposed to the LED display during said use of the electronic device; and
obtain, for each of the determined plurality of factors, a maximum percent of reduction and a minimum percent of reduction for light emission of the LED display within a light spectrum between 380 and 500 nm, by extracting the maximum percent of reduction and the minimum percent of reduction corresponding to each of the determined plurality of factors from a predetermined look-up table,
reduce, based upon the obtained values, an intensity of the light emission of the LED display within the light spectrum between 380 nm and 500 nm, wherein
the percent reduction is between the sum of each determined maximum percent of reduction and the sum of each determined minimum percent of reduction.
2. The device of claim 1 , wherein the reduction of the intensity of light emission of the LED display between the maximum and minimum percent of reduction only within the light spectrum between 380 nm and 500 nm is performed by reducing at least a percentage of the light spectrum emitted from the LED display.
3. The device of claim 1 , wherein the reduction of the intensity of light emission of the LED display between the maximum and minimum percent of reduction only within the light spectrum between 380 nm and 500 nm is variable.
4. The device of claim 1 , wherein the reduction of the intensity of light emission is progressive between the minimum and maximum percent of reduction.
5. The device of claim 1 , wherein the reduction of the intensity of light emission is within discrete portions of the LED display.
6. The device of claim 1 , wherein the reduction of the intensity of light emission of the LED display is further based upon the LED display producing less light emission within the light spectrum emitted from the LED display.
7. The device of claim 1 wherein the reduction of the intensity of the LED display is temporarily progressive depending on the exposure time of the user and the time of the day.
8. The device of claim 1 wherein the processor is further configured to:
detect a background of an electronic document viewed by the user of the electronic device, and
switch the background of the electronic document viewed by the user to a background with a reduced emission in the light spectrum between 380 and 500 nm.
9. The device of claim 1 wherein
determine, by detection or a user input, a plurality of factors further comprises: input an age of the user of the electronic device.
10. The device of claim 1 wherein
determine, by detection or a user input, a plurality of factors further comprises: determine a working distance between the user and the LED display.
11. The device of claim 1 wherein
determine, by detection or a user input, a plurality of factors further comprises: determine a size of the LED display.
12. A method of reducing a determined light spectrum emitted by an electronic device, comprising the steps of:
determining, by detection or a user input, a plurality of factors comprising:
one condition of lowest ambient lighting during use of the electronic device selected from photopic, mesopic, or scotopic;
total time a user is exposed to an LED display during use of said electronic device; and
obtain, for each of the determined plurality of factors, a maximum percent of reduction and a minimum percent of reduction for light emission of the LED display within a light spectrum between 380 and 500 nm, by extracting the maximum percent of reduction and the minimum percent of reduction corresponding to each of the determined plurality of factors from a predetermined look-up table,
reduce, based upon the obtained values, an intensity of the light emission of the LED display within the light spectrum between 380 nm and 500 nm, wherein
the percent reduction is performed between the sum of each determined maximum percent of reduction and the sum of each determined minimum percent of reduction.
13. The method of claim 12 , wherein the reduction between the maximum and minimum percent of reduction only within the light spectrum between 380 nm and 500 nm is performed by reducing at least a percentage of the light spectrum emitted from the LED display.
14. The method of claim 12 , wherein the reduction of the intensity of light emission of the LED display between the maximum and minimum percent of reduction only within the light spectrum between 380 nm and 500 nm is variable.
15. The method of claim 12 , wherein the reduction of the intensity of light emission is progressive between the minimum and maximum percent of reduction.
16. The method of claim 12 , wherein the reduction of the intensity of light emission is within discrete portions of the LED display.
17. The method of claim 12 , wherein the reduction of the intensity of light emission of the LED display is further based upon the LED display producing less of light emission within the light spectrum between 380 and 500 nm.
18. The method of claim 12 wherein
the reduction of the intensity of the LED display is temporarily progressive depending on the exposure time of the user.
19. The method of claim 12 further comprising:
detecting a background of an electronic document viewed by the user of the electronic device, and
switching the background of the electronic document viewed by the user to a background with a reduced emission in the light spectrum between 380 and 500 nm.
20. The method of claim 12 wherein
a plurality of factors further comprises an age of the user of the electronic device.
21. The method of claim 12 wherein
determining a plurality of factors further comprises: determining a working distance between the user and the LED display.
22. The method of claim 12 wherein determining a plurality of factors further comprises: determining a size of the LED display.