Aus obigen Wiki-Links (bitte immer die wesentlichen Textstellen hier mit einstellen) :
https://en.wikipedia.org/wiki/Infinity_cove
In photography, an infinity cove or infinity cyclorama is an all-white space with no corners, designed to give the impression that the background of an object extends to infinity.
Infinity coves range from a simple roll of paper to whole studios (often used for photographing cars). The principle of design is that everything behind the object is curved so that no edges can be seen. ...
https://de.wikipedia.org/wiki/Hohlkehle#Fotografie
... In der Fotografie wird eine Hohlkehle verwendet, um Freisteller-Aufnahmen anzufertigen. Der Hintergrund wird dabei wie eine Hohlkehle geformt, wodurch ein nahtloser Übergang von Wand zum Boden möglich ist und störende Raumlinien vermieden werden. Hobbyfotografen verwenden eine Badewanne, einen Lichtwürfel oder ein Lichtzelt als Hohlkehle für Freisteller-Aufnahmen. In professionellen Fotostudios ist eine Hohlkehle meist über die gesamte Studiobreite fest verbaut, um auch für größere Sujets eine weiche, kantenfreie Ausleuchtung des Hintergrunds zu gewährleisten. ...
PS : die Definitionen müssen nicht immer aus einsprachigen WB stammen ... auch entsprechende (hier Foto-)Fachseiten könnten als Belege bzw. Anwendungsbeispiele dienen ...
... dazu, für die englischsprachige Seite :
https://www.picturecorrect.com/tips/how-to-bu...
... Celebrated photographer Karl Taylor takes us through the entire construction process of an infinity cove for his new studio. Now, if you’re wondering what an infinity cove is, take a look at the video below. It’s a white background which appears infinite in the image because of the perfect smooth surface of the wall and the floor that blends together, thus creating an illusion of infinity. It works amazingly well for professional portraits, fashion shoots, and anything else that you may come up with: ...
https://www.shootfactory.co.uk/what-is-an-inf...
... An infinity curve, also sometimes called an infinity cove, is used to create a stage with a plain, single-colour background. This approach serves several purposes. It’s popular with product photographers because it allows them to clearly define the subject of an image by remove the appearance of a background of any kind. It’s also a commonly used approach among photographers who want to be able to easily mask objects during post-production work in Photoshop, and special effects designers often prefer to use it, too. Portrait photographers also like to use this method to create the appearance of an ethereal, almost heavenly space around a subject. ...
http://www.oddboxstudios.com/cyc
Infinity Cyclorama
The infinity cyc provides a seamless background for studio photo shoots. It's perfect for fashion, music videos, dance, portraits, broadcasts, and business videos. ...
https://sydneypropsphotostudios.com.au/studio...
... Studio 2 White Cyc is situated on the ground floor and has easy street access and a large loading dock. The space 4.2m high to the rafters and 8m wide by 9m deep features a solid white infinity cyclorama. With a wide 4.5m high electric roller door, access for large sets or vehicles is made easy ...
https://www.collinsdictionary.com/dictionary/...
infinity curve in British English
noun
photography
a large, single-coloured surface against which a subject is photographed, the absence of shadows providing the illusion that the background extends to infinity
Also called: infinity cove ...