CPC G02B 5/30 (2013.01) [A01G 7/045 (2013.01); A01G 9/249 (2019.05); F21V 9/14 (2013.01); F21V 17/002 (2013.01)] | 8 Claims |
1. A plant growth lighting fixture comprising:
a lighting fixture main body having a light exit surface;
a light source held on the lighting fixture main body; and
a reflective-type circularly polarizing film that selectively reflects circularly polarized light having a particular rotational direction in a particular wavelength range,
wherein the reflective-type circularly polarizing film is releasably affixed to the light exit surface of the lighting fixture main body,
wherein the reflective-type circularly polarizing film has a circularly polarized light reflecting layer that selectively reflects circularly polarized light having a particular rotational direction in a particular wavelength range, an adhesive layer for releasable affixation to the light exit surface of the lighting fixture main body, and a support, and
wherein the circularly polarized light reflecting layer is disposed on one surface of the support, and the adhesive layer is disposed on a surface of the circularly polarized light reflecting layer.
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