摘要:
An illumination apparatus for illumination of light by emitting light from LED for each of RGB colors capable of optionally setting a color temperature and controlling the brightness after the setting while maintaining the color temperature as it is, in which a light control circuit supplies a light control voltage for variably controlling the light quantity of the illumination light equally to each color setting circuit connected with LED of each color which is lit by a light quantity in proportion with a driving current and a color temperature setter of the color temperature setting circuit adjusts the light control voltage by a predetermined ratio to a control voltage, and a constant current circuit outputs a driving current in accordance with the control voltage to each LED for each of RGB colors.
摘要:
A lighting apparatus in which plural light emitting devices for illuminating light to an object to be illuminated from the periphery thereof are put to light control, and a control device is provided for controlling light to the light emitting devices on every segment divided isogonally with respect to the lighting center at which the light is focused by a control device, wherein the control device 6 comprises an illuminance distribution setter 7 that sets the illuminance on every segments S1 to S4 individually in accordance with the start position of a vector that represents the lighting direction to the lighting center F on the XY coordinate plane D with the lighting center F being as an origin P0, and a light controller 9 that reads out the illuminance on every segment from the illuminance distribution setter 7 in accordance with the input data from a two dimensional data input device 8 that sets the start position and controls the light.
摘要:
An illumination apparatus used by connecting an illumination head to a power source device, capable of supplying a rated current to individual light emitting devices of the illumination head by using a power source device of an identical rating irrespective of the specification of the illumination head, wherein the illumination head has a current detection resistor for detecting current flowing through the power supply circuit, and the resistance value of the resistor is selected so as to cause a voltage drop equal with a predetermined reference potential when a rated current is supplied to each of the light emitting devices, and the power source device is provided with a current controller for controlling the supplied current such that the potential for the voltage drop caused by the current detection resistor is equal with the reference potential.
摘要:
An endoscope of the type having in its imaging system a solid state imaging device provided in its insertable section into a cavity of a living body for receiving an optical image and converting it into electrical signals which are processed and then transmitted to a monitor to be visualized thereon. The endoscope comprises an operating part having an insertable section into a cavity which includes therein a solid state imaging device for receiving an optical image and converting it into electrical signals, a control unit for providing driving signals for the solid state imaging device and processing the signals from the solid state imaging device to provide a video signal and a display for receiving the video signal from the control unit to be visualized as, for example, a television picture. The operating part further includes an adjusting means for modifying levels of the driving signals corresponding to the characteristics of the solid state imaging device. The provision of the adjusting means in the operating part permits a control unit to be commonly applied to endoscopes having different characteristics of solid state imaging devices.
摘要:
An endoscope used for observing the interior of a cavity and the like of a living human body. The endoscope according to the present invention is of such an arrangement that an image sensor is provided in the forward end of an insertion section and an object of interest can be displayed on a screen of a television set in response to a video signal obtained from the image sensor. According to the present invention, a control unit is provided therein with a circuit for producing an image standstill command and a shutter release command depending on a time or times of operation, or a step or steps in press-in value of a single push in switch provided a control section of the endoscope, so that the provision of a single control button makes it possible to make a monitored image stand still and to release a shutter of a camera.
摘要:
A current to light emitting devices when an application voltage is at or higher than the lower limit voltage for lighting determined by the arrangement of the light emitting devices, and an identification circuit that outputs a current identification signal in accordance with an appropriate current for the lighting circuit when the application voltage is lower than the lower limit value for lighting, and the power supply comprises a driving power supply that applies a lighting voltage at or higher than the lower limit voltage for lighting, an identification power supply that applies an identification voltage at or lower than the lower limit voltage for lighting, a current setter that sets an appropriate current to be supplied to the lighting circuit based on the current identification signal outputted from the identification circuit.
摘要:
A lighting method capable of lighting individual light emitting devices in a lighting head connected to a power supply each at a rated current irrespective of the specification of the lighting head by using a power supply of an identical specification, and a lighting apparatus used for the lighting method, the lighting apparatus comprises lighting heads each having one or more light emitting devices arranged in any optional pattern and comprising a lighting circuit that supplies a current to light emitting devices when an application voltage is at or higher than the lower limit voltage VLmin for lighting determined by the arrangement of the light emitting devices, and an identification circuit that outputs a current identification signal in accordance with an appropriate current for the lighting circuit when the application voltage is lower than the lower limit value for lighting, and the power supply comprises a driving power supply that applies a lighting voltage at or higher than the lower limit voltage for lighting, an identification power supply that applies an identification voltage at or lower than the lower limit voltage for lighting, a current setter that sets an appropriate current to be supplied to the lighting circuit based on the current identification signal outputted from the identification circuit, and a lighting current control circuit that keeps the current flowing in the light circuit to an appropriate current in a lighting-up state of the light emitting devices 2 during accordance with the current setting signal.
摘要:
Making a measurement device that measures the water content and oil content of the skin into a portable size such that a female beautician can put it in a bag and easily carry it. Because a freely detachable oil content sample cap can be mounted so that it fits onto a measurement probe on the tip of which has been arranged a water content sensor to detect the amount of water on the surface of the sample under examination, when measuring the amount of water content, the water content sensor on the tip of the measurement probe may be pressed onto the surface of the sample under examination as is, or, when measuring the amount of oil content, after sampling the oil content by mounting an oil content sample cap on the tip of the measurement probe, that oil content sample cap may be removed from the measurement probe and inserted into an oil content measurement hole, and therefore, a water content measurement device and an oil content measurement device may be jointly used with a single measurement probe, and consequently, it is not necessary to provide multiple probes, and the device can be made small-scale.
摘要:
An endoscope used for observing the interior of a cavity in a human body. In the endoscope according to the present invention, an image sensor is provided in the forward end of an insertion section and an object of interest is displayed on a screen of a television set in response to a video signal obtained from the image sensor. According to the present invention, image information from the image sensor is provisionally stored in a memory, and the read-out from the memory is performed by horizontal scanning in accordance with read-out information by reversing the steps in the case of the write-in. With this arrangement, an image of the object of interest, which is inverted in an optical system in the forward end of the insertion section of the endoscope, can be displayed on the screen of the television as a normal image.
摘要:
A color video endoscope system having a control unit compatible with various endoscopes. Each endoscope generates unique signals to the control unit to optimize the clocking out of data from the solid state image sensor, to optimize the processing of data received from the image sensor, and to identify the size and location of the image formed on the image sensor so as to control the image formed on the monitor. The control unit generates alternating fields of red, green and blue light through the endoscope light guide with blank fields between the color fields, during which time data is clocked out of the image sensor, thereby preventing image "smear" caused by immediately successive color fields.