An objective system of a medical scope including an optical filter is disclosed. The optical filter includes a light incident side and a light exit side, a central region around an optical axis, and a peripheral region and is designed as an aperture with a single optical axis for white light and fluorescence light. The optical filter includes a first transmission zone for a transmittance of a first wavelength band and a second transmission zone for a transmittance of a second wavelength band at least partially different from the first wavelength band. At least one of the two transmission zones includes a filter coating. As a result, when both white light and fluorescence light pass the optical filter, a light beam cone of the fluorescence light has a larger diameter than a light beam cone of white light or vice versa. The invention also discloses a related endoscope.

[Object] To improve work efficiency with respect to work using a transparent object, such as a transparent operation tool, for example. [Solution] An image region where an object exists as a target region is detected on the basis of a second captured image, when a first captured image is a captured image obtained by selectively receiving a light of a first wavelength band, and the second captured image is a captured image obtained by selectively receiving a light of a second wavelength band, the captured images being obtained by capturing the object that is transparent for the light of the first wavelength band and is opaque for the light of the second wavelength band. Subsequently, an outline of the object is superimposed on the first captured image on the basis of information of the target region detected by the target detecting unit.

An image processing device includes: a separation unit configured to separate a plurality of wide-band image signals corresponding to wide-band light passing through each of a plurality of wide-band filters and a narrow-band image signal corresponding to narrow-band light passing through a narrow-band filter, from each other, based on an image signal input from an imaging device; a demosaicing unit configured to perform demosaic processing that interpolates one of the plurality of wide-band image signals based on edge information from the narrow-band image signal separated by the separation unit; and an image generation unit configured to generate a wide-band image by using the wide-band image signal interpolated by the demosaic processing performed by the demosaicing unit and generate a narrow-band image by using the narrow-band image signal.

A plurality of devices that provide examination/diagnosis and/or treatment benefits to a patient are presented. The device including a plurality of light sources that provide for the emission of light in a plurality of wavelength ranges, wherein the plurality of light sources are activated by a sensor, configured to determine a proximity of the device to a patient, to control an application of a voltage to selected one of the plurality of light sources for a predetermined time period.

A medical imaging device configured to spatially resolve recording of multispectral video data of an examination area of a patient including a light source having multiple optical emitters with different wavelengths in the visible and NIR spectral range. The light source has an emitter whose wavelength lies in the range of ±50% of its half-width around the intersection of the blue and green filter curves or the green and red filter curves, and the exposure control and the data processing means are arranged to separately detect the affected two of the red and green or the green and blue colour signals in an exposure pattern with activation of the emitter at the intersection point and to evaluate them in the multispectral analysis with mutually different wavelengths shifted by the two affected filter curves as two supporting point wavelengths.

In various embodiments, a scope-based imaging system is introduced. An optical sensor assembly located at the tip of the scope may include the CMOS sensors, filters, and lenses/mirrors, to perform fluorescence imaging using the scope.

An image sensor includes: unit pixels arranged in a two-dimensional matrix form, each unit pixel having photoelectric converters for converting received light into imaging signals; and filters having different transmission spectra and disposed on light receiving surfaces of the photoelectric converters. The image sensor is configured to: switch between signal processing units with respect to transfer destination of the imaging signals transferred from second transfer lines to a switching unit, based on types of the filters; and output the imaging signals from a single row of the unit pixels to the sample-and-hold units, in a predetermined number of times during one horizontal scanning period by dividing the unit pixels into pixel units each time the imaging signals are output so as to output the imaging signals from the photoelectric converters having the light receiving surfaces on which the filters of different types are disposed in each pixel unit.

A novel dual-path-endoscope where a multi-function light source produces a first-light and a second-light toward an object. The first-light exhibits first-light-characteristics. The second-light exhibits second-light-characteristics different from the first-light-characteristics. The endoscope includes two light-paths, the disparity there between is larger than zero. Each light-path includes a respective pupil and a respective light-separator coupled with the pupil, transmitting there through one of the first-light and the second-light, associating the first-light and the second-light with a respective light-path. The dual-channel-imager includes two imaging sensors, each associated with a respective light-path and optically coupled with a respective light-separator. Each imaging-sensor exhibits sensitivity to the characteristics of the respective one of the first-light and the second-light. A first imaging-sensor acquires a first-image of the first-light reflected of the object and a second imaging-sensor acquires a second-image of the second-light reflected of the object. The processor processes the acquired images.

A color image sensor captures a reflected image of narrowband light having a wavelength range in which an extinction coefficient varies with a change in an oxygen saturation level of hemoglobin in blood. Thereby a first blue signal, a first green signal, and a first red signal are obtained. The color image sensor captures a reflected image of white light. Thereby a second blue signal, a second green signal, and a second red signal are obtained. Only an oxygen saturation level, out of two or more types of biological functional information including a blood volume and the oxygen saturation level, is obtained based on the first blue signal, the second green signal, and the second red signal. The oxygen saturation level is visualized to produce an oxygen saturation image.

An ultra-small camera module with wide field of view includes (a) a wafer-level lens system for forming, on an image plane, an image of a wide field-of-view scene, wherein the wafer-level lens system includes (i) a distal planar surface positioned closest to the scene and no more than 2.5 millimeters away from the image plane in direction along optical axis of the wafer-level lens system, and (ii) a plurality of lens elements optically coupled in series along the optical axis, each of the lens elements having a curved surface, and (b) an image sensor mechanically coupled to the wafer-level lens system and including a rectangular array of photosensitive pixels, positioned at the image plane, for capturing the image, wherein cross section of the ultra-small camera module, orthogonal to the optical axis, is rectangular with side lengths no greater than 1.5 millimeters.