Abstract: An endoscope system includes: an illumination portion including an emitter and being configured to radiate illumination light beam onto an imaging subject, the beam having intensity distribution in which light and dark portions are spatially repeated; a controller configured to cause widths of the dark portions to change; an imager configured to acquire a plurality of illumination images of the subject being illuminated with beams in which the widths of the dark portions are different from each other; and at least one processor including hardware, the processor being configured to: create first and second images from each of the illumination images, the first images containing a greater quantity of information about a deep layer of the subject than the second images do; and calculate information about depths of a feature portion in the subject on the basis of changes among the first images and changes among the second images.

Abstract: An endoscope light source system includes a light source module, an insertion module and a light guide path. The light source system further includes a light connector which is provided on the light guide path and optically connects an auxiliary light guide path to the light guide path, such that auxiliary light is guided to the light guide path from the auxiliary light guide path which guides the auxiliary light; and an irradiation module which emits at least one of light-source light which is guided by the light guide path and the auxiliary light which is guided by the light guide path, to an outside of an endoscope as illumination light, and radiates the illumination light to a to-be-illuminated part.

Abstract: An endoscope device is disclosed which includes an image processing unit that generates a first image corresponding to light in a green wavelength band on the basis of an imaging signal generated by an imaging device when a light source unit emits first illumination light or second illumination light, and generates a second image corresponding to light in other one of wavelength bands. Resolution of the first image obtained when the light source unit emits the first illumination light is equal to or higher than resolution of the first image obtained when the light source unit emits the second illumination light, and resolution of the second image obtained when the light source unit emits the second illumination light is higher than resolution of the second image obtained when the light source unit emits the first illumination light.

Abstract: An imaging apparatus according to an embodiment includes a first light source which emits first light, a second light source which emits second light, an imaging sensor, and control circuitry. The image sensor includes a plurality of pixels to receive light from an object, reads an electric signal generated by the pixel with a rolling shutter method, and outputs the electric signal for each frame. The control circuitry causes the first light source to be turned on M (M is an integer equal to or less than N) times in N frames in synchronization with a first period based on a blanking period of the frame, and causes the second light source to be turned on by selectively using multiple lighting patterns in which lighting timing is set in synchronization with the first period and a total lighting period in the N frames is different.

Abstract: A light source system includes a normal light source apparatus provided with a light source controller and a light source apparatus for specific light provided with a specific light controller. In a state where communication is enabled, the light source controller adjusts an emission intensity of the normal light, generates a light amount control signal that makes the normal light and the specific light have a predetermined light amount ratio, and sends the light amount control signal to the light source apparatus for specific light. The specific light controller adjusts an emission intensity of the specific light based on the received light amount control signal.

Abstract: An endoscope apparatus includes: a first semiconductor light-emitting element; a light source drive section; a first detection section; a storage section configured to store a threshold value indicating whether or not the first detection section can correctly detect an intensity; and a control section configured to, if the intensity detected by the first detection section exceeds the threshold value stored in the storage section, control the current value of the drive signal based on the intensity detected by the first detection section, for the light source drive section, and if the intensity detected by the first detection section does not exceed the threshold value, perform control so as to make the current value of the drive signal constant to provide pulsed light emission and change a duty cycle or a number of pulses to perform light adjustment, for the light source drive section.

Abstract: A light source apparatus according to an embodiment of the present technology includes a plurality of light source portions, a plurality of temperature adjustment units, and a drive control unit. The plurality of temperature adjustment units are capable of respectively adjusting temperatures of the plurality of light source portions. The drive control unit is capable of controlling a drive timing of each of the plurality of temperature adjustment units.

Abstract: An imaging device includes: an imaging unit configured to output an imaging signal; an illumination unit configured to emit respective beams of light of a plurality of colors; a color separation unit configured to separate the imaging signal into a plurality of signals corresponding to the plurality of colors; an interest color setting unit configured to set a color corresponding to a wavelength band of interest as an interest color; a comparison unit configured to compute a ratio between a detection value of a signal corresponding to an interest color set by the interest color setting unit and a detection value of a signal of another color corresponding to a wavelength band different from the wavelength band corresponding to the interest color; and a changing unit configured to change a light emission ratio between light corresponding to the interest color and light of the other color.

Abstract: In a special observation mode, an oxygen saturation frame period, a normal frame period, and a vessel pattern frame period are repeatedly performed. A brightness detector detects the brightness of a latest frame image of an oxygen saturation video image, being a key video image. The intensity of light to be applied in the next oxygen saturation frame period is determined from the detected brightness. From the determined light intensity and a light intensity ratio among frames, the intensity of light to be applied in the next normal frame period and the next vessel pattern frame period is calculated. The exposure time of the next oxygen saturation frame period is determined from the detected brightness. From the determined exposure time and an exposure time ratio among frames, the exposure time of the next normal frame period and the next vessel pattern frame period is determined.

Abstract: An optical module includes a fixed reflection film, a movable reflection film, a first driver having a plurality of sub-drivers that can be driven independently of each other via voltage application in a plan view, a second driver that changes the dimension of a gap between the fixed reflection film and the movable reflection film, and a voltage controller that applies first drive voltages to the sub-drivers and applies a second drive voltage to the second driver, and the voltage controller applies a first drive voltage set for each of the sub-drivers in accordance with parallelism between the fixed reflection film and the movable reflection film at the time when the dimension of the gap is changed.

Abstract: A control apparatus includes a control unit configured to control a cycle from a first irradiation start timing to a second irradiation start timing to be shorter than a cycle of each of first and second picture periods. The first irradiation start timing is a timing at which a light source device starts radiating pulsed illumination light in the first picture period in which an image pickup device performs reading. The second irradiation start timing is a timing at which the light source device starts radiating the illumination light in the second picture period succeeding the first picture period and having the same cycle as the first picture period.

Abstract: A fluorescent type of green light source of a semiconductor in a light source apparatus for an endoscope includes a blue excitation light source device and green emitting phosphor. The blue excitation light source device emits blue excitation light. The green emitting phosphor is excited by the blue excitation light, and emits green fluorescence. A dichroic filter in a dichroic mirror cuts off the blue excitation light from an emission spectrum of mixed light of the blue excitation light and green fluorescence from the fluorescent type of green light source. Thus, illumination light with the emission spectrum of a target can be stably supplied without influence of the blue excitation light to a light amount of blue light from a blue light source of a semiconductor.

Abstract: An endoscope includes an insert section to be inserted into the body cavity, an illumination window for directing illumination light therethrough and an observation window for observing an illuminated internal portion of the body cavity, arranged at a distal end portion of the insert section, and a blood flow changing section for changing a blood flow of blood flowing through a vessel in a near-surface region of a living organ inside the body cavity by providing one of a temperature change and vibration energy.

Abstract: A light source apparatus for endoscopic imaging includes a light source for emitting at least narrow band blue light and narrow band green light, to illuminate an object in a body cavity. The light source is changeable over between field sequential lighting and simultaneous lighting. The light source, upon setting of the field sequential lighting, emits the narrow band blue light and narrow band green light in a discrete manner, and upon setting of the simultaneous lighting, simultaneously emits the narrow band blue light and narrow band green light. A connector is connectable with an endoscope having a complementary color image sensor of yellow, magenta and cyan, for imaging the object. A controller sets the field sequential lighting assuming that the endoscope is connected to the light source and assuming that the light source is used for emitting the narrow band blue light and narrow band green light.

Abstract: A light source apparatus outputs light for an endoscope apparatus. A blue LED emits blue light with a peak wavelength equal to or longer than 450 nm. A wavelength cut-off filter is disposed downstream of the blue LED, for cutting off a component in the blue light having a wavelength equal to or longer than the peak wavelength. Preferably, the wavelength cut-off filter cuts off a component of a wavelength equal to or longer than a reference wavelength in a wavelength range equal to or longer than the peak wavelength. A mode changer changes over an enhancement mode and a normal mode, the enhancement mode is set for enhancing and imaging a surface blood vessel of the object by use of the wavelength cut-off filter, the normal mode is set for imaging the object by disabling a function of the wavelength cut-off filter.

Abstract: An endoscope 100 includes a first light source 45 that emits white illumination light, a second light source 47 that emits narrow-band light and an imaging section that has an imaging device 21 having plural detection pixels and images a region to be observed. The imaging section is caused to output a captured image signal including both a return light component of the white illumination light from the region to be observed by and a return light component of the narrow-band light the white illumination light. From the captured image signal, the return light component of the narrow-band light is selectively extracted, and a brightness level of the extracted return light component of the narrow-band light is changed by changing a light amount of light emitted from the second light source 47.

Abstract: An endoscopic apparatus having an image pickup system operating as follows. Before picking up a still image in a body cavity that almost no light can reach, the system extinguishes LED and resets charges accumulated in respective pixels in a CMOS image sensor. In this reset state, the system illuminates LED and allows the CMOS image sensor to pick up a still image. While the charges are being read from the pixels, the system extinguishes LED and prevents further charges from being accumulated in the pixels from which the charges have not been read yet.

Abstract: The endoscope diagnostic apparatus includes a light source emitting white light and two or more kinds of excited light with different center wavelengths for emitting two or more kinds of self-fluorescence from a self-fluorescent material, an imaging unit which receives reflected light of white light to image a normal light image, and receives self-fluorescence emitted from the self-fluorescent material to image self-fluorescent images, and a light source control unit which has compensation coefficients for preventing emission intensity from being lowered depending on the volume of blood when the two or more kinds of excited light are absorbed by blood, and compensates the ratios of emission intensity of the two or more kinds of excited light using the calculated compensation coefficients so as to exclude the influence of absorption of light by blood in each of the two or more kinds of excited light.

Abstract: A light source apparatus for an endoscope, which has a lamp, a power source, a light adjustment control module that controls power to be supplied to the lamp within a range not more than an upper limit power based on a brightness instruction signal, and a continuous lighting sensing module that measures a continuous lighting time period from time when the lamp shifts from being extinguished to being lighted, compares the continuous lighting time period with a predetermined upper limit time period, and initializes the continuous lighting time period while the lamp is extinguished, wherein the upper limit power is set to a first upper limit power when the continuous lighting time period has not reached the upper limit time period, and changed to a second upper limit power lower than the first upper limit power in a stepwise manner when the upper limit time period has not been reached.

Abstract: A system and method for detection of colorimetric abnormalities within a body lumen includes an image receiver for receiving images from within the body lumen. Also included are a transmitter for transmitting the images to a receiver, and a processor for generating a probability indication of presence of colorimetric abnormalities on comparison of color content of the images and at least one reference value.

Abstract: According to an aspect of the invention, an endoscopic apparatus outputs illuminating light from a tip of an endoscope inserting module to a subject and detects a reflected light from the subject to obtain an image signal of the subject. The endoscopic apparatus includes a first light source, a second light source, a target light intensity setting module, a light intensity ratio setting module, an information storing module, an amplitude value setting module, a driving signal generating module, a signal supplying module.

Abstract: A lighting device includes first and second light sources, a wavelength converting member and a light quantity ratio changing unit. A first light source uses a semiconductor light emitting device as an emission source. A second light source uses, as an emission source, a semiconductor light emitting device of a different emission wavelength from the first light source. A wavelength converting member is excited for light emission by light emitted from at least one of the first light source and the second light source. The light quantity ratio changing unit changing a light quantity ratio between the light emitted from the first light source and the light emitted from the second light source.

Abstract: An endoscope 100 includes a first light source 45 that emits white illumination light, a second light source 47 that emits narrow-band light and an imaging section that has an imaging device 21 having plural detection pixels and images a region to be observed. The imaging section is caused to output a captured image signal including both a return light component of the white illumination light from the region to be observed by and a return light component of the narrow-band light the white illumination light. From the captured image signal, the return light component of the narrow-band light is selectively extracted, and a brightness level of the extracted return light component of the narrow-band light is changed by changing a light amount of light emitted from the second light source 47.

Abstract: An imaging apparatus includes: a first and second optical systems that focus and emit incident light, a transparent wavelength, and a focal length of them being different from each other; an imaging unit that includes a first region on which the light emitted from the first optical system is incident and a second region on which the light emitted from the second optical system is incident, can output, as pixel information, an electric signal after photoelectric conversion from pixels arbitrarily set as read targets; a setting unit that can arbitrarily set the read targets in at least one of the first region and the second region; a reading unit that reads the pixel information from the read targets; a control unit that changes the read targets according to an acquisition target image; and an image processing unit that generates the acquisition target image.

Abstract: A patient monitoring/defibrillation instrument displays patient vital signs in numeric form or as graphical waveform traces. Under normal room lighting conditions the numeric and waveform information is displayed in color against a black or gray background. When the patient monitor is operated outside or in bright light, the user has the option to select a color map for display of the patient vital signs information in a highly contrasting manner such as black numeric or waveform information against a bright background such as yellow. The high contrast display, while being objectionable in most indoor settings, has been found to comfortably and effectively display the monitored information in sunlight without the need to increase power to the display.

Abstract: A lighting device includes first and second light sources, a wavelength converting member and a light quantity ratio changing unit. A first light source uses a semiconductor light emitting device as an emission source. A second light source uses, as an emission source, a semiconductor light emitting device of a different emission wavelength from the first light source. A wavelength converting member is excited for light emission by light emitted from at least one of the first light source and the second light source. The light quantity ratio changing unit changing a light quantity ratio between the light emitted from the first light source and the light emitted from the second light source.

Abstract: An endoscopic apparatus is disclosed. The endoscopic apparatus includes a light source which has a plurality of light source components which output light beams which cross one another; an estimator which estimates a geometry of an internal surface of a body; and a controller which controls so that an intensity of a light beam output by any one of the plurality of light source components is variably adjusted based on the estimated geometry of the internal surface of the body.

Abstract: A light source device includes a first light source, a second light source having an emission wavelength that is different from the first light source, and a phosphor that is disposed to be distant from the first light source and the second light source and absorbs light in a predetermined excitation wavelength band to emit fluorescence. The phosphor is disposed on an emission light optical path that is shared by the first light source and the second light source. The emission wavelength of the first light source is in the predetermined excitation wavelength band. The emission wavelength of the second light source is outside of the predetermined excitation wavelength band.

Abstract: An image pickup system that performs image pickup control of a rolling shutter type such that an all line exposure period and a non-all line exposure period are generated and controls a light source of illumination light to increase or decrease, in a first light adjustment mode, while maintaining a light amount of the illumination light in a first period during the all line exposure period at a predetermined level, a light amount of the illumination light during a second period including the all line exposure period other than the first period and the non-all line exposure period compared with an immediately preceding second period.

Abstract: An endoscope apparatus includes: a laser light source that generates laser light; an optical fiber that guides laser light inputted to a proximal end and applies the laser light to a subject from a distal end; an actuator swinging a distal end portion of the optical fiber; the conductive wire provided in close contact with the optical fiber, and connected to the actuator; a signal generator that generates a drive signal for driving the actuator, the drive signal being conducted by the conductive wire; a detection circuit that detects a current flowing in the conductive wire when the signal generator generates the drive signal, and detects that the conductive wire is broken, based on the detected current value; and a controller that controls an amount of illuminating light based on a result of determination of whether or not the conductive wire is broken in the detection circuit.

Abstract: An endoscope 100 includes a first light source 45 that emits white illumination light, a second light source 47 that emits narrow-band light and an imaging section that has an imaging device 21 having plural detection pixels and images a region to be observed. The imaging section is caused to output a captured image signal including both a return light component of the white illumination light from the region to be observed by and a return light component of the narrow-band light the white illumination light. From the captured image signal, the return light component of the narrow-band light is selectively extracted, and a brightness level of the extracted return light component of the narrow-band light is changed by changing a light amount of light emitted from the second light source 47.

Abstract: An image processing apparatus includes a motion vector calculator and an alignment processing unit. The motion vector calculator calculates motion vector information between a fluorescence image of an observed region based on fluorescence generated from the observed region irradiated with excitation light, and a reflected-light image of the observed region based on reflected light from the observed region. The alignment processing unit corrects misalignment of an object between the fluorescence image and the reflected-light image of the observed region based on the motion vector information.

Abstract: An endoscope system includes: a light transmitting section for transmitting illuminating light and emit the light from a light exit surface; a light receiving section for receiving return light of the light emitted from the light exit surface; a light guiding section for allowing the light to be incident on the light receiving section by totally reflecting return light from a subject or the emitted light at least one or more times; a driving section for allowing an end portion having the light exit surface of the light transmitting section to be swung; a light detecting section for detecting the light received through the light guiding section, as a signal; and a control section for, if the pattern of fluctuations in the signal level by the light detected by the light detected section does not correspond to the predetermined pattern of fluctuations, performing control for lowering a quantity of the illuminating light.

Abstract: An electronic endoscope includes a white light source, an excitation light source, an imaging device, and a light amount controller. The white light source emits white light for illuminating a subject. The excitation light source emits excitation light for generating fluorescent light on the subject. The imaging device generates first image signals by receiving reflected light of the white light, and generates second image signals by receiving the fluorescent light. The light amount controller controls the amount of the white light to lower the difference between a reflected light luminance and a fluorescent light luminance, so that a normal image corresponding to the first image signals and a fluorescent image corresponding to the second image signals that are both real-time images representing the same subject at the time of receiving the reflected light and the fluorescent light can be generated.

Abstract: An endoscope apparatus includes: a light source portion that irradiates an excitation light and a reference light alternately; an image pickup portion that picks up images of the fluorescence from the living tissue and the reflected light; a signal processing portion that generates image signals from picked up signals; an addition processing portion that generates, from image signals of fluorescence, addition processed signals of fluorescence in which pixels are added; a light quantity control portion that controls the quantity of light so as to maintain a predetermined light quantity ratio between the quantities of the excitation light and the reference light from the addition processed signals of fluorescence and image signals of the reflected light; and a superimposition processing portion that superimposes the addition processed signals and the image signals of the reflected light, with the predetermined light quantity ratio being maintained.

Abstract: An actuator has a magnet moved together with a moving lens frame, an SMA wire capable of extending and contracting in a moving direction I of the moving lens frame with execution or non-execution of energization thereof, a fixing member made of a magnetic material attached to a distal end of the SMA wire, a pressing spring which urges the fixing member toward the magnet along the moving direction I, and a stopper member and a stopper portion which limits the movement of the magnet along the moving direction I at a first position or a second position.

Abstract: A power supply apparatus for a light source of an endoscope includes a light source unit including an input portion that a control signal is input from an output control unit, the light source unit switching a brightness of the illumination light by the control signal and a control signal cable connected to the output control unit and the input portion, and including a current control signal line to transmit the control signal, and a GND line. The power supply apparatus for a light source of an endoscope further includes a common-mode rejecting portion provided in the input portion, connected to the control signal cable, and rejects noise superimposed on the control signal cable.

Abstract: A light source device includes a light source, a diaphragm blade for adjusting light quantity of illumination light supplied from the light source, a diaphragm driving part for driving the diaphragm blade to perform opening/closing operation, and a diaphragm control circuit part for setting diaphragm drive instruction voltage to be supplied to the diaphragm driving part and control an opening/closing amount of the diaphragm blade. In the diaphragm control circuit part, a fully-opened voltage and a fully-closed voltage at the time the diaphragm blade is fixed at a fully-opened position and a fully-closed position are read, based on the voltages, adjustment data for adjusting the diaphragm drive instruction voltage and the opening/closing positions of the diaphragm blade is set, and based on the adjustment data, a control range of the diaphragm drive instruction voltage is regulated.

Abstract: A fluorescent endoscope apparatus includes an excitation light irradiation system for irradiating a living body with excitation light, a wavelength-selective transmission member which transmits light from the living body in a wavelength-selective manner, a photodetector which photoelectrically converts the selected and transmitted light, a wavelength selection control section which controls the wavelength-selective transmission member, to make it select and transmit light in a plurality of fluorescence detection wavelength regions and light in spectrum acquisition wavelength regions in a predetermined wavelength range that includes at least one of the fluorescence detection wavelength regions, a fluorescence image synthesizer for synthesizing images in the fluorescence detection wavelength regions, a display device for displaying the synthesized image, and an intensity distribution acquisition section which acquires the intensity distribution of light in the predetermined wavelength range.

Abstract: Illumination light projected into a body cavity includes first to third narrowband rays of different wavelength ranges, at least one of these narrowband rays has a central wavelength of not more than 450 nm. Under these narrowband rays, first to third narrowband image signals are respectively obtained through an endoscope. Based on the first to third narrowband image signals, vascular areas containing blood vessels are determined, and a first luminance ratio between the first and third narrowband signals and a second luminance ratio between the second and third narrowband signals are calculated at every pixel of the vascular areas. From the calculated first and second luminance ratios, information about both the depth and oxygen saturation of the blood vessels is acquired with reference to correlation data that correlates the first and second luminance ratios to the vessel depth and the oxygen saturation.

Abstract: In an image-obtainment-apparatus that obtains an image of an observation-region by imaging, by an imaging-device, light output from the observation-region illuminated with illumination-light, when the light-amount of the illumination-light illuminated the observation-region is less than or equal to first-threshold-value, the electronic-shutter-speed is controlled at first-constant-speed, and the light-amount of the illumination-light is controlled based on the light-amount of the illumination-light illuminated the observation-region. When the light-amount of the illumination-light illuminated the observation-region is greater than first-threshold-value and less than or equal to second-threshold-value, the electronic-shutter-speed is controlled at a speed based on the light-amount of the illumination-light illuminated the observation-region, and the light-amount of the illumination-light is controlled at a predetermined constant light-amount.

Abstract: An endoscope system includes an illumination unit which includes a modulation section configured to control a visible light source so that visible light from the visible light source is subjected to intensity modulation in a predetermined pattern, and emits modulated visible light as illumination light, a detection section configured to detect the modulated visible light, and a determination section configured to determine whether an insertion portion of an endoscope is present in an object based on a detection result of the detection section. The illumination unit is arranged outside the object, and the detection section is arranged at the insertion portion.

Abstract: An endoscope image is obtained by imaging a subject with a scope. Then, an edge portion of the endoscope image is extracted and a complexity degree of the edge portion is detected. Thereafter, a determination is made as to whether the endoscope image is an image obtained through near view imaging or distant view imaging according to the complexity degree and an imaging condition is changed according to the determined near view imaging or distant view imaging.

Abstract: The endoscope system includes an endoscope, a control unit, a beam source control unit and a type check unit. The endoscope has a radiation optical system for radiating a beam from a beam source onto a subject and an imaging optical system including an imaging device. The endoscope is removably connected to the control unit. The beam source control unit controls the emission beam intensity of the beam source according to a beam quantity specified value input from the control unit. The type check unit checks a type of the imaging device mounted on the endoscope. The beam source control unit has a plurality of control patterns representing a relationship between the beam quantity specified value and a control output value, switches to any one of the control patterns according to the check results, and controls the emission beam intensity according to the switched control pattern.

Abstract: The endoscope beam source apparatus includes a beam source for emitting a radiation beam to be supplied to the endoscope, and a beam source control unit for controlling the emission beam intensity of the beam source according to a beam quantity specified value input therein. The beam source control unit specifies the emission beam intensity corresponding to the beam quantity specified value based on at least three of control amounts. The control amounts include a control amount corresponding to pulse number modulation (PNM) control for changing lighting time of the beam source, a control amount corresponding to pulse width modulation (PWM) control for changing a plus width which indicates the lighting or lighting-out time within a control cycle, a control amount corresponding to pulse amplitude modulation (PAM) control for changing the lighting intensity, and a control amount corresponding to pulse density modulation (PDM) control for changing a lighting interval.

Abstract: First to third lights are applied to a body cavity from a light source. The first and second lights have different wavelength ranges. Each of the first and second lights varies in absorbance in accordance with oxygen saturation of hemoglobin. The third light is a reference light used for comparison with the first and second lights. A monitoring section monitors a first light quantity ratio between the first and third lights and a second light quantity ratio between the second and third lights. A controller controls the light source such that first and second light quantity ratios reach their respective standard values. First to third data are obtained from images captured with illumination of the three lights, respectively. Vessel depth information and oxygen saturation information are obtained simultaneously from a first brightness ratio between the first and third data and a second brightness ratio between the second and third data.

Abstract: An inspection apparatus can comprise at least one light source for illuminating a target. The at least one light source can be disposed and/or controlled in such manner as to reduce a heat generation by the at least one light source and in such manner as to reduce a power consumption of the at least one light source.

Abstract: An endoscopic device of the present invention comprises: an endoscope having an image pickup unit that outputs a picked up an image of a subject as an image pickup signal; an image pickup signal amplification unit; a light source unit; a light intensity control unit that controls an amount of light; a spectral unit that penetrates light in a band based on predetermined characteristics; a brightness control unit that controls a brightness of an image displayed on a display unit; and a mode switching unit that switches a first mode for emitting first illumination light and a second mode for emitting second illumination light having a band narrower than the first illumination light, wherein the brightness control unit controls the light intensity control unit and then controls the image pickup signal amplification unit in the second mode.

Abstract: An endoscope system of the invention includes: a first endoscope capable of picking up an image of a subject; a first illuminating section capable of emitting first illuminating light; a second endoscope capable of picking up an image of the subject illuminated by the first light from a direction different from the first endoscope; a second illuminating section capable of emitting second illuminating light; a video signal processing section for generating a video signal based on a signal picked-up by the second endoscope; a display section for displaying an image of the subject obtained by the video signal processing section; an emphasis instructing section for instructing an emphasis on an image obtained based on the first light; and an emphasis control section for controlling to emphasize the subject image obtained based on the first light according to an operation of the emphasis instructing section.

Abstract: An endoscope system of the present invention has a video processor and a light source device, and an endoscope can be connected thereto. And a control portion of the light source device detects connection with the endoscope and the video processor, detects connection with the video processor and the light source device and detects the type of the endoscope by an endoscope detection portion. And when non-connection of the endoscope and the video processor is detected, or non-connection of the video processor and the light source device is detected, the control portion controls so that the light amount of illumination light supplied from the light source device to the endoscope becomes a predetermined light amount according the detected type of the endoscope.