A tip part (2) for forming a tip of a disposable insertion endoscope (1) the tip part comprising: a camera insertion sleeve (28) provided within the interior spacing, the camera insertion sleeve being formed by a circumferential camera sleeve wall that extends from the distal front wall of the housing to a proximal end of the camera insertion sleeve so that the camera insertion sleeve comprises an open proximal end; a tube insertion sleeve (38) provided within the interior spacing and fixed in relation to the distal front wall, the tube insertion sleeve being formed by a circumferential tube sleeve wall that extends a total tube sleeve length S from the distal front wall of the housing to a proximal end of the tube insertion sleeve so that the tube insertion sleeve comprises an open proximal end; the circumferential housing wall comprises at least one cut-out (41) extending from the proximal end towards the distal front wall, the at least one cut-out leaving space for constructive elements within the at least one cut-out, such constructive elements comprising e.g. fixation, such as crimps, of steering wires and/or alignment elements for alignment of the tip part during manufacture. Furthermore, methods of manufacture thereof are disclosed.

A medical lighting device according to the present invention includes a light source unit that emits light, an optical fiber that guides and emits the light having emitted from the light source unit and having entered inside the optical fiber, first and second detection units that are provided in the vicinity of an emission end including an emission end for the light of the optical fiber and detect the light in the optical fiber, and a control unit that determines, based on detection values of the light detected by the first and second detection units, normality/abnormality in the detection values of the respective detection units and outputs determined results.

A light source apparatus includes a light source optically connectable to a scope including a light guide configured to guide light, and first and second illumination light emission units configured to radiate illumination light based on the guided light on a subject, and a light quantity distribution changing device disposed on an optical path of the light emitted from the light source. The light quantity distribution changing device is configured to control a light quantity of the light brought into each of the first illumination light emission unit and the second illumination light emission unit, so as to change a light quantity distribution of the illumination light radiated on the subject.

An endoscope illumination system is provided in an insert part and includes an exit surface from which illumination light is emitted, an entrance side optical surface on which the illumination light is incident, and an exit side optical surface from which the illumination light goes out. The entrance side optical surface includes an inner light distribution surface and an outer light distribution surface. The outer light distribution surface is located farther from the center axis of the insert part than the inner light distribution surface. The inner light distribution surface includes a first inner surface. The first inner surface is a curved surface that is convex to the exit surface. The outer light distribution surface is a flat surface or a curved surface that is concave to the exit surface.

The disclosure relates to an endoscopic light source that includes a first emitter. The first emitter may emit light of a first wavelength at a dichroic mirror which reflects the light of the first wavelength to a plurality of optical fibers. The endoscopic light source further comprises a second emitter. The second emitter may emit light of a second wavelength at a second dichroic mirror which reflects the light of the second wavelength to the plurality of optical fibers. In one embodiment, the first dichroic mirror may be transparent to the light of the second wavelength, allowing the light of the second wavelength to pass through the first dichroic mirror.

An endoscope includes an insertion unit, an operation unit, an emission end, a first light guide and a second light guide that guide illumination light emitted from a light source unit to the emission end, a lens member that suppresses a variation in a relative intensity of each color light of the illumination light, and a connection unit that optically connects the first light guide, the second light guide, and the lens member; and the lens member is disposed between the first light guide and the second light guide, and the connection unit and the lens member are provided in the operation unit.

The disclosure extends to methods, devices, and systems for removing speckle from a coherent light source, such as laser light. The methods, devices, and systems help eliminate or reduce speckle introduced from a coherent light source, such as laser light, by utilizing the teachings and principles of the disclosure.

A light-guiding structure according to the invention is used in an endoscope for guiding light along a lengthwise direction and includes a first portion and a second portion. The first portion extends in a single cross section along the lengthwise direction. The second portion extends in a varying cross section along the lengthwise direction and is connected to an end of the first portion in the lengthwise direction. An endoscope tip includes a circuit board, an image-capturing component, a light-emitting component, and the light-guiding structure. The light-guiding structure can fit the contours of the circuit board and the image-capturing component to increase space usage for obtaining more cross-sectional area. For the production of the light-guiding structure, the second portion is formed by shaping a portion directly extending form the end of the first portion or by an additional material directly bonded to the end of the first portion by molding.

In one aspect, a light module is disclosed, which includes a housing providing a hollow chamber extending from a proximal end to a distal end, and a lens positioned in the hollow chamber, where the lens has a lens body comprising an input surface for receiving light from a light source and an output surface through which light exits the lens body, said lens further comprising a collar at least partially encircling said lens body. The light module further includes at least one shoulder on which the lens collar can be seated for positioning the lens within the housing. A light source, e.g., an LED, is coupled to the hollow chamber, e.g., at its proximal end, for providing light to the lens. In some embodiments, an optical window is disposed in the hollow chamber and is optically coupled to the output surface of the lens such that the light exiting the lens passes through the optical window before exiting the light module. In some embodiments, the shoulder can be formed as part of the housing. In other embodiments, the shoulder can be provided by a sleeve disposed in the module's housing.

A focus control device includes a processor. The processor analyzes detection results of a target object in time sequence to determine whether the target object is in a lost state in which the target object is not temporarily captured into an image, sets a focus drive mode to an autofocus mode when the target object is detected, sets a first positional mode in which the focus lens is arranged at a position that is within a set range of an in-focus object plane position and is on the far point side of a central position when the target object is not detected and is not in the lost state, and sets the focus drive mode such that a lens position is nearer to a near point than in the first positional mode or sets the focus drive mode to the autofocus mode in a when the lost state is determined.