Coupling between two optical devices

摘要

The coupling has a body (1) with a rotatable, spring-biassed grip (3) and a rotatable, spring-biassed shutting ring (7). The ring has an eccentric (9) which guides the grip, and a recess (10) for the grip. The grip is turned in by the ring, whence the grip spring is relaxed and the ring one tensed. The body couples to another piece (2), which is held by the grips. There are preferably three grips.