A modular viewing device for observation through a wall of a protected space is provided. The device includes a distal module with an objective lens, a proximal module having a movable light guide, a connection unit having with a first coupling device, and a rotatable bearing. The first coupling device releasably couples, optically and mechanically, the proximal module to the connection unit so that an image captured by the objective lens is directed to and transmitted by the image guide. The rotatable bearing rotatably mounts the distal module on a side of the connection unit opposite to the proximal module so that the distal module is rotatable relative to the proximal module and the connection unit is mountable on the wall. The rotatable bearing has an articulation device configured to allow articulation of the rotatable bearing by an observer looking at the exit end.

An example imaging apparatus that can operate at shortwave infrared (SWIR) wavelengths are provided. An example imaging apparatus may include a fiber optic bundle, a distal lens, an illumination assembly, and an imaging detector. The fiber optic bundle may comprise a plurality of fibers and may be configured to guide light energy at a SWIR wavelength. The distal lens may be disposed on a distal end of the fiber optic bundle and the distal lens configured to focus light energy at the SWIR wavelength. The illumination assembly may be configured to output illumination at the SWIR wavelength adjacent to the distal end of the fiber optic bundle toward an object. The imaging detector may be operably coupled to a proximal end of the fiber optic bundle and configured to receive imaging light energy at the SWIR wavelength reflected from the object and guided through the fiber optic bundle.

An example imaging apparatus that can operate at shortwave infrared (SWIR) wavelengths are provided. An example imaging apparatus may include a fiber optic bundle, a distal lens, an illumination assembly, and an imaging detector. The fiber optic bundle may comprise a plurality of fibers and may be configured to guide light energy at a SWIR wavelength. The distal lens may be disposed on a distal end of the fiber optic bundle and the distal lens configured to focus light energy at the SWIR wavelength. The illumination assembly may be configured to output illumination at the SWIR wavelength adjacent to the distal end of the fiber optic bundle toward an object. The imaging detector may be operably coupled to a proximal end of the fiber optic bundle and configured to receive imaging light energy at the SWIR wavelength reflected from the object and guided through the fiber optic bundle.

An objective optical system for endoscope includes a first lens having a negative refractive power, a second lens having a positive refractive power, an aperture stop, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power. The second lens is a meniscus lens having a convex surface directed toward an image side and the third lens is a meniscus lens having a convex surface directed toward the image side. A cemented lens having a positive refractive power is formed by the fourth lens and the fifth lens. The sixth lens is cemented to an image sensor, and the following conditional expression (1′″) is satisfied:
1≤(r3f+r3r)/(r3f−r3r)≤5  (1′″).

An objective optical system for endoscope includes a first lens having a negative refractive power, a second lens having a positive refractive power, an aperture stop, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power. The second lens is a meniscus lens having a convex surface directed toward an image side and the third lens is a meniscus lens having a convex surface directed toward the image side. A cemented lens having a positive refractive power is formed by the fourth lens and the fifth lens. The sixth lens is cemented to an image sensor, and the following conditional expression (1′″) is satisfied:
1≤(r3f+r3r)/(r3f−r3r)≤5  (1′″).

An endoscopy system having a low-profile multi-imager endoscope. The system is capable of using computational photography to provide enhanced output images using techniques such as super-resolution, foveation, magnification, and two-dimensional to three-dimensional conversion. The enhanced output images can improve clinical decision making and patient treatment. Signals from multiple imagers may be used to affect/adjust handing characteristics of the endoscope or direct semi-robotic guidance thereof.

Provided are a fiber bundle image processing method (200) and an apparatus. The method (200) includes: determining pixel information corresponding to a center position of a fiber in a sample image; correcting the determined pixel information; and reconstructing the sample image based on the corrected pixel information to obtain a reconstructed image. The method (200) and apparatus can not only obtain a more ideal fiber-bundle processed image, but also have a smaller calculation amount, and the entire calculation process takes less time.

A plurality of kinds of illumination light are emitted while being switched according to a specific light emission pattern. A plurality of observation images, which are obtained from image pickup of an object to be observed illuminated with each illumination light, are acquired. Control to display the plurality of observation images on a display unit while switching the plurality of observation images according to a specific display pattern is performed. The specific light emission pattern is fixed and the specific display pattern is changeable.

A screen (70) of a display (7) includes a main screen (71), sub-screens (72) and (73), and an input list screen (74). During an examination using an endoscope (1), a control device (4) displays a plurality of types of information on the examination on the main screen (71) and the sub-screens (72) and (73), respectively. In addition, the control device (4) displays, on the input list screen (74), an option of the information to be displayed in a switching target information region included in the main screen (71) and the sub-screens (72) and (73). Moreover, the control device (4) switches the information to be displayed in the switching target information region based on a user operation of selecting the option.

The disclosure relates to diagnostic, surgical, and/or therapeutic devices for being introduced into the human or animal body or for in vitro examination of human or animal blood samples or other body cells, in particular to an endoscope or a disposable endoscope that includes at least one illumination light guide and/or image guide for transmitting electromagnetic radiation, the illumination light guide or image guide having a proximal end face for incoupling or outcoupling of electromagnetic radiation and a distal end face for incoupling or outcoupling of electromagnetic radiation. The proximal and/or distal end faces consist of plastic elements that are transparent at least partially or in sections thereof, the transparent plastic being biocompatible and/or having non-toxic properties to human or animal cell cultures for exposure durations of less than one day. This allows for the production of assemblies for disposable endoscopes, inter alia.