Polarized Lenses in the Data
The polarized field answers one narrow question: did the maker say, on the page for this exact variant, that the lens is polarized?
The three values
| Value | Meaning |
|---|---|
true |
The source states the lens is polarized for this variant |
false |
The source states the lens is not polarized for this variant |
null |
No source states it either way (unknown) |
Unknown is not false
A missing "Polarized" label doesn't mean the lens isn't polarized. For many Ray-Ban variants, the page text available to this catalog had no statement either way, so the field is null. The catalog records this: "polarized omitted: page does not explicitly state non-polarized" (Ray-Ban US).
If you want only polarized results, filter for true. If you exclude only false, the results still include frames whose status is unknown.
Exact variant, not the whole model
Polarization belongs to a specific lens, so the catalog records it per variant. On Maui Jim's US site, the Red Sands Asian Fit Matte Black / Neutral Grey variant is recorded as polarized (Maui Jim). The Grey Tortoise / HCL Bronze variant of the same style is left null. On that page, "PolarizedPlus2" appeared only in general site text, not in that variant's details (Maui Jim). General marketing text about a collection isn't taken as a statement about one variant.
Within one Oakley style, colors also differ. Holbrook OO9102 Matte Black / Prizm Black Polarized is true (Oakley). Matte brown tortoise / Prizm black has no "Polarized" in its lens name and is left unstated (Oakley).
Polarization and UV are separate
Polarization and UV filtering are different properties, and the catalog stores them in different fields. polarized says nothing about UV. The uv_claim field holds the maker's own UV wording, quoted, and it is null when the page makes no UV statement. A polarized variant can have no recorded UV claim, and a non-polarized one can have one. This site doesn't test either property.