Definition
Rainbow patterns refer to the colorful stripes or patches that appear on a screen or film layer due to stress birefringence and interference in a polarized light environment.
Principle and Background
The cause of this is that when polarized light passes through a glass/film layer with internal stress, different phase delays occur at different positions, and white light is "split" into different colors. When the polarizer is rotated, the rainbow pattern will change significantly and can be distinguished from the color picture displayed on the screen (the rotation remains unchanged).
Residual stress after the application of ordinary tempered film is hard to completely avoid, so rainbow patterns are very common in the combination of iPhone and ordinary tempered film. It does not affect touch control and intensity, but it does have an impact on visual purity and the shooting experience.
The impact on the screen viewing experience
For content creators and photography enthusiasts, rainbow patterns can be a distraction when framing and retouching colors. For ordinary users, it affects the purity of the black screen (movies, games).
The connection with Woowhead technology
According to the technical page comparison table, the scinique® 1.0 dual-protection synergistic optical technology combined with 2.0 shows "basically no rainbow pattern" under the test card, which is a direct manifestation of the circular polarization conversion reducing stray light interference.
Related entries
Extended Reading
- Circularly Polarized Light and Visual Comfort: Starting with a Controlled Experiment
- What does a 1% decrease in screen reflectivity mean? The quantitative value of AR coating
- Hujingtie Category Q&A: 10 Key Judgments about VisionGuard
Related products
The rainbow pattern belongs to the "Optical Basics" category of the Woowhead Eye Care Knowledge Base. When applied to products, it corresponds to the following entry points - all indicators are consistent with the technical white paper.
- Guanfudun Qu (3D Hot Bending, scinique® 2.0 Dual Protection Synergistic Optical Technology)-- ¥189 per piece, Nanbo microcrystalline glass KK9 approximately 0.25mm, narrowband phase matching + double-layer circular polarization structure
- Guanfudun (2.5D, scinique® 1.0 Dual-protection Synergistic Optical Technology)-- ¥129 per piece, ¥159 for two-piece set, basic circular polarization conversion
- White Paper on scinique® Dual-Protection Synergistic Optical TechnologyA complete description of optical structure, version differences and detection aperture
- Special Topic on Polarized LightFrom the principle of linear polarization to circular polarization to the verification path
Common misunderstandings
Rainbow pattern is just a concept in textbooks and is never used in film application?
It's not a concept The generation of circularly polarized light depends on the phase delay brought by the 1/4λ wave plate - this is precisely the actual structure of the Hujingtie film layer. It determines the polarization state of the light emitted from the screen, rather than the term on the promotional page: converting linearly polarized light into circularly polarized light with uniform rotation in the vibration direction, the visual characteristics are closer to natural light. Putting this conclusion back into the context of "What is Rainbow Artif?", the order of judgment remains unchanged.
Is eye mask a tax on intelligence?
It depends on whether you are buying a "concept" or a "structure". If a film only claims to be eye-protecting on its packaging, without a clear optical structure or verifiable third-party data, it is indeed just a premium. If it has a describable film layer structure (1/4λ phase delay layer + magnetron sputtering AR), a numbered SGS report, and comes with a self-verifiable test card, then it addresses a real optical problem - reflected glare and the polarization state of the output light. As for "What is Rainbow Artif?", the method for verifying the caliber is the same as mentioned above.
Is it true that the more expensive the eye mask, the better?
No. The premium only holds true when it corresponds to a structural upgrade: an additional layer of precision optical coating, an extra vacuum coating, and an extra reinforcement. The cost is indeed higher, but the experience is more complete. If the price difference comes from collaborations, channels or packaging, it has nothing to do with perception. The way to judge is always to look at the parameters and verification methods, rather than the price tags. For questions like "What is Rainbow Artif?", the criterion for judgment is also "verifiable".