Oblique-view endoscope objective
AssigneeSchölly Fiberoptic GmbH
InventorsJonas Tuscher, Florian Wirth
Life of this patent
Estimating the term…
Abstract
In the case of an objective arrangement (1) having a deflection unit (4) which guides an imaging beam path (9) from a light entrance (2) to a light exit (3) via a first reflection surface (6) and a second reflection surface (7), it is provided to embody a region (8) of total internal reflection at least in the second reflection surface (7), with this region being configured for total internal reflection in the imaging beam path (9) and this region forming part of a transmission region (5) that is disposed upstream of the first reflection surface (6), through which imaging rays from the light entrance (2) are incident on the first reflection surface (6).
Claims19
An objective arrangement (1) for an endoscope comprising:
- a light exit (3) that is angled in relation to a light entrance (2);
- a deflection unit (4) which guides an imaging beam path (9) proceeding from the light entrance (2) to the light exit (3), the deflection unit (4) includes a transmission region (5), a first reflection surface (6), and a second reflection surface (7) located along the imaging beam path (9) such that captured images are adapted to pass along the imaging beam path (9) through the transmission region (5) for reflection at the first reflection surface (6) and further reflection at the second reflection surface (7);
- the transmission region (5) extends through a portion of the second reflection surface (7), and the second reflection surface (7) has a region (8) of total internal reflection arranged at least in part in the transmission region (5) and which is configured for total internal reflection of imaging rays;
- and
- the first reflection surface (6) is at least partly reflectively coated.
An objective arrangement (1) for an endoscope comprising:
- a light exit (3) that is angled in relation to a light entrance (2);
- a deflection unit (4) which guides an imaging beam path (9) proceeding from the light entrance (2) to the light exit (3), the deflection unit (4) includes a transmission region (5), a first reflection surface (6), and a second reflection surface (7) located along the imaging beam path (9) such that captured images are adapted to pass along the imaging beam path (9) through the transmission region (5) for reflection at the first reflection surface (6) and further reflection at the second reflection surface (7);
- the transmission region (5) extends through a portion of the second reflection surface (7), and the second reflection surface (7) has a region (8) of total internal reflection arranged at least in part in the transmission region (5) and which is configured for total internal reflection of imaging rays;
- and
- the second reflection surface (7) is at least partly reflectively coated outside of the transmission region (5).
Dependencies are inferred from the claim text.