An endoscope and lens cleaning device assembly includes a tubular body, a visualization device including a lens, and a lens cleaning device. The visualization device is supported on a distal portion of the tubular body. The lens cleaning device is supported on the distal portion of the tubular body and includes an iris mechanism having a plurality of vanes. The vanes are movable between a first position in which the vanes are positioned radially outwardly of the lens of the visualization device and a second position in which the vanes cover the lens of the visualization device. Each of the vanes has a cleaning surface that is positioned to contact the lens of the visualization device as the vanes move between the first and second positions to clean the lens of the visualization device.

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.

This disclosure relates to the minimally invasive medical technical field, and specifically, to a device of anti-fogging endoscope system including a beam of a near-infrared light for anti-fogging, which is coupled into an endoscope imaging optical channel in combination coaxially and is transmitted to the front optical window sheet, the visible light passes through the front optical window sheet, and the near-infrared light is absorbed by the absorption characteristics of the front optical window sheet to raise the temperature of the front optical window sheet. The device is also provided with a cut filter for eliminating the impact on image quality caused by the near-infrared stray light, so that the illumination light source of the prior-art endoscope is not necessary to be changed. It is suitable to integrate the coaxial coupling module with a camera handle or adapter and is more convenient to operate the device.

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 includes in order from an object side, a front unit having a positive refractive power and a rear unit. The front unit includes in order from the object side, a first lens having a negative refractive power, a second lens having a positive refractive power, and a third lens having a positive refractive power. The rear unit includes one lens or a plurality of lenses and the following conditional expression is satisfied:
|(FLag−FLaC)/FLad|<0.05  (1) where, FLad denotes a focal length for a d-line of the front unit, FLag denotes a focal length for a g-line of the front unit, and FLaC denotes a focal length for a C-line of the front unit.

An optical-scanning-type observation probe is provided with: an imaging optical system that illumination light scanned by an optical scanner enters and that focuses the illumination light in the form of a spot, multiple times; a projection optical system that emits illumination light coming from a focus position focused by the imaging optical system, toward a subject in the form of a spot; and a light-receiver that is provided independently of the imaging optical system and the projection optical system and that receives reflected light of the illumination light, the reflected light coming from the subject, via a light path different from that of the imaging optical system and the projection optical system.

Embodiments of video inspection systems with moveably dockable camera control units (CCUs) which may include a display are disclosed. In one embodiment, a video inspection system includes two frame elements which each have a handle. The frame elements may be moved into multiple positions and orientations relative to each other and provide a secure stand for a CCU. The CCU may be attached and detached from the frame elements. The handles may be used to carry the frame elements with or without the CCU attached. The handles may be slip resistant to provide a stable support for a CCU when the frame elements are positioned on a surface. Docking apparatus are provided to allow a CCU, tablet, pad, laptop, or smartphone to be attached to the frame elements and put in a variety of positions or orientations to make viewing convenient for a user.

Apparatus (38) for the optical manipulation of a pair of landscape stereoscopic images (L, R), which apparatus (38) comprises: (i) a camera (36) which has its own focus lens (40); (ii) an enclosed housing (4), three ports (6, 8, 10) in the housing (4) with one port being a photographic interface port which forms a photographic interface (12) to the camera (36), and the other two ports being human interface ports which form a human interface (18), said three ports (6, 8, 10) allowing the light to pass from the human interface to the photographic interface (12) for camera recording, or from the photographic interface (12) to the human interface (18) for each eye of the human, in a direction parallel to that of light entering the other said interface without left-right image inversion between the photographic interface (12) and the human interface (18); and (iii) at least four reflective surfaces (20, 22, 24,26) which direct light along three mutually perpendicular axes, each of said surfaces having an edge lying on a flat plane (28), said plane (28) also including a division line (30) between adjacent landscape stereoscopic images presented at said photographic interface (12), whereby the apparatus (38) causes landscape stereoscopic images which are side by side with a left eye image left of a right eye image and with shortest dimensions adjacent and which are at the human interface (18) to become stacked one image above the other at the photographic interface (12), and wherein: (iv) the apparatus (38) causes the left and right eye images which are stacked one image above the other at the photographic interface (12) to emerge as parallel light towards the camera (36); and (v) the focus lens of the camera (36) is on an optical axis passing through the centre of the photographic interface port and is focussed for infinity distance to receive the parallel light conveying the two stereoscopic images.

A relay optical system 20 for a rigid endoscope includes a lens fixing frame 21 and a plurality of lenses 22. The lens fixing frame 21 has a plurality of tubular bodies 26. The plurality of tubular bodies 26 are joined coaxially to each other. The plurality of lenses 22 are located at positions other than a joint position jp of the tubular bodies 26 in an axis direction of the lens fixing frame 21. The plurality of lenses 22 are located in the lens fixing frame 21 so as to have a coincident optical axis. The plurality of lenses 22 do not include a cemented lens.

An image pickup apparatus for endoscope includes: an optical unit having an incident surface and an emitting surface; an image pickup unit adhering to the emitting surface; an interposer where the image pickup unit is bonded to a first electrode of a first main surface; and an electric cable bonded to the interposer. The image pickup unit is smaller than the optical unit and the interposer in an outer size in a direction orthogonal to an optical axis. The image pickup apparatus for endoscope further includes a heat conductive resin with which a portion among the emitting surface, the first main surface, and a side surface of the image pickup unit is filled. The first electrode extends to a position where the first electrode is brought into contact with the heat conductive resin.