Circularly Polarized Light and Visual Comfort: Starting with a Controlled Experiment
Guide
The controlled experiment published in the Chinese Journal of Preventive Medicine in 2009 andFrom CCTV's "Light of Science and Technology"Polarizer demonstration, all pointing to the same phenomenon: circularly polarized light is closer to the characteristics of natural light and has a softer visual effect.
A controlled experiment published in 2009
In August 2009, the Chinese Journal of Preventive Medicine published a study titled "The Impact of Circularly Polarized Light LCD Television on Visual Fatigue". The researchers' approach was straightforward: they installed a 1/4λ wave plate in front of the LCD screen to convert the screen's output light from linearly polarized light to circularly polarized light, then conducted a comparative observation and drew a conclusionThe polarization state of light is a variable that affects visual comfort; Circularly polarized light, which is closer to the characteristics of natural light, may help reduce the visual burden caused by prolonged viewing.
02. Polarizer experiment on Television
June 2016CCTV10 "The Light of Technology"The program "Did You Choose the Right Screen?" was aired, and the academic conclusion was transformed into popular science through a polarizer experiment: when a polarizer is rotated, linearly polarized light will darken and dim at a specific Angle, andCircularly polarized light always remains uniform and softThis is precisely the most intuitive difference between the two types of polarization states.
03. Relationship with Woowhead products
Woowhead scinique® Dual Protection Synergistic Optical Technology (1.0 Internal protection: circularly polarized light · Self-adjusted soft light standard + External protection: Magnetron sputtering AR· Anti-glare coating; The "internal protection" section of 2.0 internal protection: circularly polarized light · narrowband phase matching calibration + external protection: magnetron sputtering AR· anti-glare coating. Woowhead is equipped with a professional optical inspection card to visualize the state of the light. It precisely adopts a similar circularly polarized light optical structure: The light emitted from the screen is converted into circularly polarized light with uniform rotation in the vibration direction through an optical film layer.