photoorientation

English

Etymology

From photo- +‎ orientation.

Noun

photoorientation (uncountable)

1. (chemistry, biology) The process of aligning molecules or living organisms using light.
   • 1954 December, Harold F. Blum, “Photoorientation and the "Tropism Theory"”, in The Quarterly Review of Biology‎^[1], volume 29, number 4, page 307:

     The term photoorientation is used here to include all types of movement which tend to bring living organisms into geometrical relation with light fields in which they find themselves.

   • 1991 August, Z. Lechowski, J. Bialczyk, “The Action Spectrum of Far-Red Light in Interaction with Orange Light on Orientation of Chloroplasts in Mougeotia”, in The New Phytologist‎^[2], volume 118, number 4, page 521:

     Photoorientation of chloroplasts from profile to face position in Mougeotia can be controlled in two ways.

   • 2024 June, Ji Li, Zhifu Li, Jie Chen, Yongchao Zhao, Binbin He, Ting Zhao, Shuang Lu, Guozhong Wang, “P-187: Pretilt angle of liquid crystal molecules induced by photo-aligned films of Polymerized 2-(methacrylic acid) ethyl 3,5-diaminobenzoic acid reaction monomer polyimide for PSVA technology”, in SID Symposium Digest of Technical Papers‎^[3], volume 55, number 1:

     Orientation film is a key material in liquid crystal displays,and the technology of inducing liquid crystal molecularorientation through polyimide photoorientation film is widely studied.