Abstract: An illumination optical system, which irradiates a target object with light from a light source unit includes: an integrator optical system that is disposed on an optical path of the light emitted from the light source unit and uniformizes an illuminance distribution of the light with which the target object is to be irradiated; an input lens that is disposed on a light incident side of the integrator optical system; a bandpass filter that is disposed between the input lens and the integrator optical system; an aperture that is disposed on a light emission side of the integrator optical system; and a condenser lens that irradiates the target object with light emitted from the aperture, the aperture having a size larger than a size of an irradiation region of the light with which the target object is to be irradiated.

Abstract: Disclosed herein is a lighting optical system comprising: a light source having a plurality of light-emitting elements configured to emit light from light-emitting surfaces, respectively; a relay optical system configured to convert a luminous intensity distribution of light emitted from each of the light-emitting elements into an irradiance distribution and to superimpose a plurality of the irradiance distributions corresponding to the plurality of light-emitting elements on each other on a superimposed surface; an optical integrator having a plurality of wavefront splitting elements arranged in parallel to each other, the plurality of wavefront splitting elements being configured to wavefront split irradiated light through the relay optical system and to transmit the wavefront split light as a plurality of pencils of light rays; and a condenser optical system configured to superimpose the plurality of pencils of light rays on each other on a surface to be irradiated.

Abstract: An illumination optical system that irradiates a target object with light from a light source unit includes an integrator optical system, a condenser lens, and a bandpass filter. The integrator optical system is disposed on an optical path of the light emitted from the light source unit and uniformizes an illuminance distribution of the light with which the target object is to be irradiated. The condenser lens includes a plurality of lenses and irradiates the target object with the light emitted from the integrator optical system. The bandpass filter is disposed between any two of the plurality of lenses included in the condenser lens.

Abstract: A method and a system for monitoring a condition of an elastic element used in a downhole tool are provided. The method comprises acquiring an output signal from a flexible-type sensor installed in the elastic element, the sensor sensing at least one of strain and stress of the elastic element, and estimating a condition of the elastic element based on the output signal from the sensor. The system comprises a flexible-type sensor installed in the elastic element, the sensor sensing at least one of strain and stress of the elastic element and a processor to acquire an output signal from the sensor and estimate a condition of the elastic element based on the output signal from the sensor.

Abstract: An illumination device includes a plurality of excitation light sources; a fluorescent plate for receiving the excitation light and emitting fluorescent light; and an optical system for causing excitation light from each of the plurality of excitation light sources to be incident on the fluorescent plate, the optical system includes a plurality of reflection surfaces for redirecting the output from the respective excitation light sources into a divergent light pattern.

Abstract: A method and a system for monitoring a condition of an elastic element used in a downhole tool are provided. The method comprises acquiring an output signal from a flexible-type sensor installed in the elastic element, the sensor sensing at least one of strain and stress of the elastic element, and estimating a condition of the elastic element based on the output signal from the sensor. The system comprises a flexible-type sensor installed in the elastic element, the sensor sensing at least one of strain and stress of the elastic element and a processor to acquire an output signal from the sensor and estimate a condition of the elastic element based on the output signal from the sensor.

Abstract: Disclosed is the provision of a fluorescent light source device that can highly efficiently emit fluorescent light and can be configured as a compact device with a simple structure. Further disclosed is the provision of a fluorescent light source device that can achieve high utilization efficiency of fluorescent light when it is utilized in a projector apparatus.

Abstract: A control system for subsea, subsurface fluid operations that includes a controller; a subsea oil-water separator device that is in fluid communication with a water production flowline; and a subsea, subsurface fluid analyzer that analyzes fluid in the water production flowline, where the subsea, subsurface fluid analyzer includes a light source, an optical diverter that diverts a first portion of light emitted by the light source to fluid of the water production flowline and that passes a second portion of light emitted by the light source to fluid of the water production flowline, and one or more image sensors that generate images based on at least one of the first portion of light and the second portion of light, where the controller issues signals that control flow of the fluid in the water production flowline based at least in part on one or more of the generated images.

Abstract: A light source device includes a light emitting element adapted to emit exciting light; a fluorescent element having a phosphor and adapted to convert at least a portion of the exciting light emitted from the light emitting element into fluorescence and to reflect the fluorescence; and a common cooling member adapted to cool the light emitting element and the fluorescent element. The cooling member includes a first cooling surface coupled to the light emitting element for cooling the light emitting element, and a second cooling surface coupled to the fluorescent element for cooling the fluorescent element. The first cooling surface and the second cooling surface are placed in parallel with each other and are placed in such a way as to be oriented in the same direction.

Abstract: A light source device includes a light emitting element adapted to emit exciting light; a fluorescent element having a phosphor and adapted to convert at least a portion of the exciting light emitted from the light emitting element into fluorescence and to reflect the fluorescence; and a common cooling member adapted to cool the light emitting element and the fluorescent element. The cooling member includes a first cooling surface coupled to the light emitting element for cooling the light emitting element, and a second cooling surface coupled to the fluorescent element for cooling the fluorescent element. The first cooling surface and the second cooling surface are placed in parallel with each other and are placed in such a way as to be oriented in the same direction.

Abstract: A fluid separator separates a fluid flow into a plurality of fluid portions, and delivers at least a first fluid portion of the plurality of fluids to a flow conduit. An imaging-based measurement device includes a light source and an image sensor. The imaging-based measurement device measures the first fluid portion in the flow conduit. An imaging processor in the imaging-based measurement device processes the measurement data to determine a characteristic of the first fluid portion.

Abstract: An example system described herein to perform downhole fluid analysis includes an imaging processor to be positioned downhole in a geological formation, the imaging processor including a plurality of photo detectors to sense light that has contacted a formation fluid in the geological formation, each photo detector to determine respective image data for a respective portion of an image region supported by the imaging processor, and a plurality of processing elements, each processing element being associated with a respective photo detector and to process first image data obtained from the respective photo detector and second image data obtained from at least one neighbor photo detector, and a controller to report measurement data via a telemetry communication link to a receiver to be located outside the geological formation, the measurement data being based on processed data obtained from the plurality of processing elements.

Abstract: An example system described herein to perform downhole fluid analysis includes an imaging processor to be positioned downhole in a geological formation, the imaging processor including a plurality of photo detectors to sense light that has contacted a formation fluid in the geological formation, each photo detector to determine respective image data for a respective portion of an image region supported by the imaging processor, and a plurality of processing elements, each processing element being associated with a respective photo detector and to process first image data obtained from the respective photo detector and second image data obtained from at least one neighbor photo detector, and a controller to report measurement data via a telemetry communication link to a receiver to be located outside the geological formation, the measurement data being based on processed data obtained from the plurality of processing elements.

Abstract: In a polarized light exposure apparatus, light including ultraviolet rays emitted from a lamp 1a is condensed by an elliptic condensing mirror, is made parallel by a lens 5 whose position in an optical axis direction is adjustable by a lens moving mechanism, and enters a polarizing element 6. The light incident to the polarizing element 6 is separated and enters the integrator 7 for making irradiance distributions uniform, so that the light is irradiated on a work piece placed on the light irradiation area. Since the position in the optical axis direction is adjustable, the parallelism (Telecen Degree) to the optical axis of principal rays which are incident to the polarizing element 6 or the integrator 7, can be changed. Thus, it is possible to adjust the position of the lens 5 so as to uniform the polarization direction.

Abstract: A light emitting device according to the present invention comprises a light source, a condensing mirror for condensing light from the light source, a light intensity controlling unit for controlling light intensity of the condensed light, a collimator lens provided from the light intensity controlling unit at a focal distance of the collimator lens, and an integrator lens, wherein light emitted from the collimator lens is overlaid on an entire incident surface of the integrator lens.

Abstract: A light emitting device according to the present invention comprises a light source, a condensing mirror for condensing light from the light source, a light intensity controlling unit for controlling light intensity of the condensed light, a collimator lens provided from the light intensity controlling unit at a focal distance of the collimator lens, and an integrator lens, wherein light emitted from the collimator lens is overlaid on an entire incident surface of the integrator lens.