Patent ID: 11865043
Assignee: CARL ZEISS MEDITEC AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 2:
3. The optical system as claimed in claim 1, wherein the objective comprises at least one lens or lens group and is configurable to direct the focus separately to a first region in a first configuration, to a second region in a second configuration and to a third region in a third configuration and in which for switching between the first configuration, second configuration and third configuration of the objective includes at least one of following:
(i) air gaps between single or several lenses of the objective that are changeable,
(ii) lens radii of one or several lenses of the objective that are changeable,
(iii) refractive indices of one or several lenses of the objective that are changeable,
(iv) single lenses or lens groups of the objective that are exchangeable with other single lenses or lens groups, and
(v) further lenses or lens groups that are insertable into the objective.