Meanings
nounλ/4 film (plural λ/4 films)
plural λ/4 films
- engineeringFilm having a retardation of a quarter of a specified wavelength, used with a polarizer film to lower the reflectance of a display significantly.
Synonyms: quarter-wavelength film, quarter-wave plate, λ/4 plate
Synonyms & antonyms
nounFilm having a retardation of a quarter of a specified wavelength, used with a polarizer film to lower the reflectance of a display significantly.
Also see
Origin
λ (“wavelength”).
Full word history & related roots →Translations
French lame λ/4, lame quart d'onde
- lame λ/4film with a retardation of quarter wavelength
- lame quart d'ondefilm with a retardation of quarter wavelength
Japanese λ, 4板
- λfilm with a retardation of quarter wavelength
- 4板film with a retardation of quarter wavelength
Korean λ, 4판
- λfilm with a retardation of quarter wavelength
- 4판film with a retardation of quarter wavelength
Cite this entry
APA
λ/4 film. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/%CE%BB%2F4%20film
MLA
“λ/4 film.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/%CE%BB%2F4%20film. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “λ/4 film,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/%CE%BB%2F4%20film.
Source: λ/4 film on Wiktionary, CC BY-SA 4.0.