Optical arrangement for an endoscope and endoscope having such an optical arrangement
AssigneeHenke-Sass, Wolf GmbH
InventorOliver Rehe
Life of this patent
Estimating the term…
Abstract
An optics arrangement for an endoscope is provided. The optics arrangement images an object situated in front of its distal end to the proximal end of the optics arrangement along a principal beam path having an optical axis. The optics arrangement is designed both for light from the visible spectrum and for light from the near infrared. The optics arrangement includes an aperture stop with a reflection layer in the principal beam path. The reflection layer reflects light from the visible spectrum and transmits light from the near infrared. The reflection layer is inclined in relation to the optical axis.
Claims20
An optics arrangement for an endoscope, wherein the optics arrangement images an object situated in front of a distal end of the optics arrangement to a proximal end of the optics arrangement along a principal beam path, the principal beam path having an optical axis, wherein the optics arrangement is configured both for a visible spectrum of light and a near infrared spectrum of light, the optics arrangement comprising:
- an aperture stop with a reflection layer in the principal beam path, said reflection layer reflecting light from the visible spectrum of light and transmitting light from the near infrared spectrum of light,
- wherein the reflection layer is inclined in relation to the optical axis,
- wherein the aperture stop comprises two transparent bodies that are interconnected such that the two transparent bodies do not move relative to one another, and
- wherein each of the two transparent bodies include a respective side that faces the other and an opposing side facing away from the other.
An optics arrangement for an endoscope, wherein the optics arrangement images an object situated in front of a distal end of the optics arrangement to a proximal end of the optics arrangement along a principal beam path, the principal beam path having an optical axis, wherein the optics arrangement is configured both for a visible spectrum of light and a near infrared spectrum of light, the optics arrangement comprising:
- an aperture stop with a reflection layer in the principal beam path, said reflection layer reflecting light from the visible spectrum of light and transmitting light from the near infrared spectrum of light,
- wherein the reflection layer is inclined in relation to the optical axis,
- wherein the aperture stop comprises two transparent bodies that each have a respective side that faces the other one of the two transparent bodies,
- wherein the reflection layer is disposed between the respective sides that face one another such that the reflection layer contacts each of the respective sides that faces the other.
Dependencies are inferred from the claim text.