Provided is an endoscope that can connect proximal ends of the first signal lines and a signal relay part together without securing an extra length for the first signal lines. An airtight casing is disposed inside an outer tube of an insertion part, an imaging device and first signal lines are accommodated inside the airtight casing, a distal end of the airtight casing is airtightly sealed by a cover glass, and a proximal end of the airtight casing is airtightly sealed by a partition wall part. The airtight casing is constituted of a first tubular body and a second tubular body, and the second tubular body is disposed in a nested shape with respect to the first tubular body. During the connection between the proximal ends of the first signal lines and the terminal part, the second tubular body is advanced toward the first tubular body.

Infrared imaging devices are provided which are configured to implement side-scan infrared imaging for, e.g., medical applications. For example, an imaging device includes a ring-shaped detector element comprising a circular array of infrared detectors configured to detect thermal infrared radiation, and a focusing element configured to focus incident infrared radiation towards the circular array of infrared detectors. The imaging device can be an ingestible imaging device (e.g., swallowable camera) or the imaging device can be implemented as part of an endoscope device, for example.

An endoscope includes at least one lens having a circular exterior shape in a direction perpendicular to an optical axis, an image sensor that has a square exterior shape in the direction perpendicular to the optical axis, and has one side whose length is same as length of a diameter of the lens, a sensor cover that has a square exterior shape in the direction perpendicular to the optical axis, and has one side whose length is same as one side length of the image sensor, a bonding resin portion that fixes the sensor cover to the lens, the optical axis of the lens coinciding with a center of the imaging area.

The endoscope includes an imaging device that is provided in a tip portion of an insertion part capable of being inserted into a body cavity. The imaging device includes an image sensor that photoelectrically converts imaging light incident on an image receiving surface thereof through an imaging lens provided in a lens barrel, and a circuit substrate including a connecting surface facing a terminal face that is a surface opposite to the image receiving surface of the image sensor. A plurality of terminals are uniformly arranged longitudinally and laterally in a two-dimensional matrix form on the terminal face of the image sensor, and the connecting surface of the circuit substrate and the terminal face of the image sensor are connected to each other through the plurality of terminals. The total area of the plurality of terminals on the terminal face occupies 10% or more of the area of an imaging area of the image receiving surface.

An optical system for a stereo video endoscope, a stereo video endoscope and a method for operating an optical system. The optical system includes a distal optical assembly and a proximal optical assembly with a left lens system channel and a right lens system channel. The distal optical assembly couples light incident from an object space into the left lens system channel and into the right lens system channel of the proximal optical assembly. The distal optical assembly is an optical assembly with an adjustable focal length, wherein a change in the focal length causes a displacement of an axis intersection point in the object space.

In accordance with one embodiment, an automated probe system includes a probe configured to be reversibly inserted into a live body part, a robotic arm attached to the probe and configured to manipulate the probe, a first sensor configured to track movement of the probe during an insertion and a reinsertion of the probe in the live body part, a second sensor configured to track movement of the live body part, and a controller configured to calculate an insertion path of the probe in the live body part based on the tracked movement of the probe during the insertion, and calculate a reinsertion path of the probe based on the calculated insertion path while compensating for the tracked movement of the live body part, and send control commands to the robotic arm to reinsert the probe in the live body part according to the calculated reinsertion path.

A method for enhanced surgical navigation, and a system performing the method and displaying graphical user interfaces associated with the method. A 3D spatial map of a surgical site is generated using a 3D endoscope including a camera source and an IR scan source. The method includes detecting a needle tip protruding from an anatomy and determining a needle protrusion distance corresponding to a distance between the needle tip and a surface of the anatomy using the 3D spatial map. A position of a surgical tool in the 3D spatial map is detected and a determination is made by the system indicative of whether the needle protrusion distance is sufficient for grasping by the surgical tool. A warning is generated when it is determined that the needle protrusion distance is not sufficient for grasping by the surgical tool.

Improved fluoresced imaging (FI) endoscope devices and systems are provided to enhance use of endoscopes with FI and visible light capabilities. An endoscope device is provided for endoscopy imaging in a white light and a fluoresced light mode. A relay system includes an opposing pair of rod lens assemblies positioned symmetrically with respect to a central airspace. The rod lens assemblies include a meniscus lens positioned immediately adjacent to a central airspace and with the convex surface facing the airspace, a first lens having positive power with a convex face positioned adjacent to the inner face of the meniscus lens, a rod lens adjacent to the first lens having positive power and an outer optical manipulating structure selected from various designs providing chromatic aberration correction.

Provided is a light emitting device including a light source that emits primary light; and a wavelength converter that includes a first phosphor that absorbs the primary light and emits first wavelength-converted light, wherein the light emitting device emits output light including the first wavelength-converted light, the first wavelength-converted light is near-infrared light having a fluorescence intensity maximum value within a wavelength range of 700 nm or more and less than 800 nm, the first wavelength-converted light mainly contains a broad fluorescent component based on an electron energy transition of .sup.4T.sub.2.fwdarw..sup.4A.sub.2 of Cr.sup.3+, and the broad fluorescent component has a fluorescence spectrum half-width that is less than 100 nm.

A stacked lens includes: a first optical device; a second optical device disposed on an optical axis of the first optical device; and an adhesive layer bonding the first optical device and the second optical device and including a projection projecting outside a side surface of the first optical device and a side surface of the second optical device.