WO2005047833A1 - マルチスペクトル撮像装置、マルチスペクトル照明装置 - Google Patents
マルチスペクトル撮像装置、マルチスペクトル照明装置 Download PDFInfo
- Publication number
- WO2005047833A1 WO2005047833A1 PCT/JP2004/016662 JP2004016662W WO2005047833A1 WO 2005047833 A1 WO2005047833 A1 WO 2005047833A1 JP 2004016662 W JP2004016662 W JP 2004016662W WO 2005047833 A1 WO2005047833 A1 WO 2005047833A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- optical
- multispectral
- imaging device
- optical path
- Prior art date
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 40
- 238000001228 spectrum Methods 0.000 title abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 170
- 238000009792 diffusion process Methods 0.000 claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 238000000701 chemical imaging Methods 0.000 claims description 74
- 238000005286 illumination Methods 0.000 claims description 70
- 239000000835 fiber Substances 0.000 claims description 39
- 239000013307 optical fiber Substances 0.000 claims description 17
- 230000001678 irradiating effect Effects 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000004737 colorimetric analysis Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0216—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using light concentrators or collectors or condensers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
- G01N2021/4742—Details of optical heads therefor, e.g. using optical fibres comprising optical fibres
Definitions
- Multi-spectral imaging device multi-spectral lighting device
- the present invention relates to a multispectral imaging device and a multispectral lighting device configured to irradiate light of different wavelengths to measure a color component.
- Japanese Patent Application Laid-Open No. 9-218356 discloses that, in order to observe the surface of an object close to a mirror surface, illumination light guided by the first light guide means is transmitted to a second light source having a plurality of reflection surfaces.
- An optical device and an illumination head are described that enable the target to be observed with bright light due to specular reflection by irradiating the target with the position force close to the imaging optical axis by the light guide means (2). .
- Japanese Patent Application Laid-Open No. 9-270885 discloses that, in an illumination optical system incorporated in a colorimeter or the like, a ring-shaped light source is used, and the light emitted from the ring-shaped light source also emits a conical first light. There is described a technique of irradiating a target object by being reflected by a second mirror surface and further reflected by a second concave mirror surface.
- LEDs light emitting diodes
- LED light of three primary colors is sequentially emitted, and each color is directly radiated to an irradiation surface so as to be overlapped at the center, and the irradiation surface power is reflected respectively.
- Light is received by a photodiode or the like, and a colorimetric value is determined based on the reflected light intensity.
- a colorimetric value is determined based on the reflected light intensity.
- Japanese Patent Application Laid-Open No. Hei 10-134621 discloses a lighting fixture that illuminates a semiconductor wafer or the like for inspection, in which a plurality of LEDs emit illumination light, and the illumination light is emitted.
- a technique is described in which, when transmitting using a fiber bundle, uniform illumination is performed by randomly arranging the fibers constituting the bundle.
- Japanese Patent Application Laid-Open No. H11-305141 discloses that specular reflected light is shielded between a light guide means for irradiating illumination light and an object to be illuminated. There is described an enlarged image pickup apparatus and an optical apparatus provided with an annular light-shielding portion for performing the operation.
- the colorimeter described in the specification of the above-mentioned Patent No. 3218601 directly irradiates the light of the three primary colors to the irradiation surface. Is determined optically by the light distribution characteristics and the irradiation distance. In order to obtain an optically uniform irradiation light amount, it is difficult to achieve such a light distribution characteristic only with a power LED that needs to form a light beam having high directivity regardless of the irradiation distance. Therefore, the irradiation area where the emission light of the LED corresponding to each of the three primary colors overlaps can be obtained only in a narrow area, so that the measurement can be performed only in this narrow area. Further, in the configuration as described in the specification, it is not always possible to accurately measure the color because there is a possibility that specularly reflected light having an irradiation surface force is incident on the photodiode.
- the lighting apparatus described in the above-mentioned Japanese Patent Application Laid-Open No. H10-134621 is designed to perform uniform illumination via a fiber bundle. Due to the illumination, it is impossible to prevent the specular reflection light of the irradiation surface force from being incident on the CCD camera via the microscope, and accurate color measurement is impossible. Further, since the lighting fixture of the publication is for inspecting a pattern of a semiconductor wafer or the like, It goes without saying that there is no particular configuration for performing colorimetry, and there is no structure that uses a plurality of illumination lights with different wavelengths.
- JP-A-9-218356, JP-A-9-270885, and JP-A-11-305141 disclose a plurality of light sources because they do not assume LEDs as light sources. No attempt has been made to eliminate illumination unevenness that may occur when using the LED.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a multispectral illuminating device and a multispectral imaging device capable of performing illumination without causing unevenness in the amount of light on an irradiated surface.
- a multispectral imaging device includes a multispectral illuminating device that irradiates light of different wavelengths to a surface to be illuminated, and an illumination by the multispectral illuminating device. And an imaging optical system that forms an image of the reflected light having the irradiation surface force that has been obtained, and measures a color component of the irradiation surface by analyzing a component of the reflected light obtained through the imaging optical system.
- a multi-spectral imaging device wherein the multi-spectral illuminating device includes a plurality of light sources that emit light of different wavelengths, an optical rod for relaying light from the light source, and light with the optical rod force. And a light diffusion element for irradiating the surface to be irradiated with the light diffused by the reflection surface and reflecting the light while diffusing the light.
- the light diffusion element further includes an optical sheet for diffusing transmitted light in an optical path. It is arranged and configured.
- the multispectral imaging device is the multispectral imaging device according to the first aspect, wherein the light diffusing element is configured to reduce non-uniformity of illumination on a surface to be illuminated.
- An optical sheet having a gradation is further arranged in the optical path.
- a multispectral imaging device is the multispectral imaging device according to the first invention, wherein the light diffusing element has a plurality of reflection surfaces. At least one of the plurality of reflecting surfaces is a reflecting surface subjected to aluminum coating.
- a multispectral imaging device is the multispectral imaging device according to the first aspect, wherein the light diffusing element has a plurality of reflection surfaces. At least one of the reflective surfaces is a white painted reflective surface.
- a multispectral imaging device is the multispectral imaging device according to the first aspect, wherein the light diffusion element has a cross section substantially perpendicular to an optical path for transmitting light from the optical rod. Is formed in the shape of a stop so that the area of the light path becomes smaller in the middle of the optical path than on the entrance side and the exit side of the optical path.
- the multispectral imaging device is the multispectral imaging device according to the first aspect, wherein the light diffusion element is configured such that a center axis of a light beam radiated toward a surface to be illuminated has the center axis. It is configured to make an angle in the range of 45 to 75 degrees with respect to the optical axis of the optical system.
- the light diffusion element further includes an optical sheet for diffusing transmitted light in an optical path. It is arranged and configured.
- the light diffusing element performs gradation for reducing non-uniformity of illumination on a surface to be irradiated.
- the optical sheet is further arranged in the optical path.
- a multispectral imaging device is the multispectral imaging device according to the seventh aspect, wherein the light diffusion element is configured to have a plurality of reflection surfaces. At least one of the reflective surfaces is an aluminum-coated reflective surface
- a multispectral imaging device is the multispectral imaging device according to the seventh aspect, wherein the light diffusing element is configured to have a plurality of reflection surfaces. At least one of the reflective surfaces is a white painted reflective surface.
- the light diffusing element transmits light from the optical rod.
- the diaphragm is formed in such a shape that the area of a cross section substantially perpendicular to the path is smaller in the middle of the optical path than on the entrance side and the exit side of the optical path.
- a multispectral imaging device connects a multispectral illuminator that irradiates light of different wavelengths to a surface to be illuminated, and reflected light from the surface to be illuminated illuminated by the multispectral illuminator.
- a multi-spectral imaging apparatus for measuring a color component of the surface to be illuminated by analyzing a component of reflected light acquired through the imaging optical system.
- Spectral illuminator power Composed of a plurality of light sources that emit light of different wavelengths and a bundle of a plurality of optical fibers. On the light output side, the optical fibers constituting these light input bundles are bundled together in a randomly mixed state to form a light output bundle. And an inverter unit.
- a multispectral imaging apparatus is the multispectral imaging apparatus according to the thirteenth aspect, wherein the fiber unit further includes an optical sheet for diffusing transmitted light in an optical path. It was done.
- a multispectral imaging device is the multispectral imaging device according to the thirteenth aspect, wherein the fiber unit has a gradation for reducing non-uniformity of illumination on a surface to be irradiated. Are further arranged in the optical path.
- a multispectral imaging device is the multispectral imaging device according to the thirteenth aspect, wherein the number is set according to the luminous efficiency of the corresponding light source. ing.
- the fiber unit irradiates the illuminating surface toward the surface to be illuminated with the central axis of the light of the imaging optical system. It is designed to make an angle between 45 and 75 degrees with respect to the axis.
- the fiber unit diffuses light to be transmitted. Are further arranged in the optical path.
- the multispectral imaging apparatus is the multispectral imaging apparatus according to the seventeenth aspect, wherein the fiber unit has a gradation for reducing non-uniformity of illumination on a surface to be irradiated. Are further arranged in the optical path.
- a multispectral illuminating device provides a plurality of light sources that emit light of different wavelengths, an optical rod for relaying the light having the light source power, and a light diffusing light having the optical rod power. And a light diffusing element for irradiating the surface to be illuminated with light diffused by the reflecting surface.
- the light diffusing element further includes an optical sheet for diffusing transmitted light in an optical path. It is composed.
- the light diffusion element has a gradation having a gradation for reducing non-uniformity of illumination on a surface to be illuminated.
- the sheet is further arranged in the optical path.
- the light diffusing element has a plurality of reflecting surfaces, and the plurality of reflecting surfaces is provided. At least one of them is a reflective surface that has been subjected to aluminum coating.
- a multispectral illuminator according to a twenty-fourth aspect is the multispectral illuminator according to the twentieth aspect, wherein the light diffusing element has a plurality of reflecting surfaces, and the plurality of reflecting surfaces is provided. At least one of them is a reflective surface painted white.
- the light diffusing element has a cross-sectional area substantially perpendicular to an optical path for transmitting light from the optical rod. It is formed in a stop shape in the middle of the optical path so as to be smaller than on the entrance side and the exit side of the optical path.
- the multispectral lighting device emits light of different wavelengths from each other.
- a plurality of light sources and a plurality of optical fibers are bundled.
- the light incident side is divided into a plurality of light incident bundles corresponding to the plurality of light sources, and these light incident bundles are formed on the light exit side.
- a multispectral illuminator according to a twenty-seventh aspect is the multispectral illuminator according to the twenty-sixth aspect, wherein the fiber unit further includes an optical sheet for diffusing transmitted light in an optical path. It was done.
- the fiber unit has a gradation for reducing non-uniformity of illumination on a surface to be illuminated. Are further arranged in the optical path.
- a multispectral illuminating device is the multispectral illuminating device according to the twenty-sixth aspect, wherein the number is set according to the luminous efficiency of the corresponding light source. ing.
- a multispectral illuminator according to a thirtieth aspect is the multispectral illuminator according to the twenty-sixth aspect, wherein the fiber unit irradiates the illuminating surface toward the surface to be illuminated with the central axis of the light of the imaging optical system. It is designed to make an angle between 45 and 75 degrees with respect to the axis.
- a multispectral illuminator according to a thirty-first aspect is the multispectral illuminator according to the thirtieth aspect, wherein the fiber unit further includes an optical sheet for diffusing transmitted light in an optical path. It was done.
- the multispectral illuminating device is the multispectral illuminating device according to the thirtieth aspect, wherein the fiber unit has a gradation for reducing non-uniformity of illumination on a surface to be illuminated. Are further arranged in the optical path.
- FIG. 1 is a diagram showing a use form of a multispectral imaging device according to a first embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a configuration of a multispectral imaging device according to the first embodiment.
- FIG. 3 is a diagram showing a side view of a configuration of an image capturing apparatus centered on a multi-plane illumination device and a front view showing a configuration of an LED board in the first embodiment.
- FIG. 4 is a perspective view showing a configuration of the multispectral illuminating device according to the first embodiment and a side view showing an operation of the optical sheet.
- FIG. 5 is a diagram showing a top view of the configuration of the multispectral lighting device according to the first embodiment.
- FIG. 6 is a diagram showing an illumination spectrum by an LED and a spectral sensitivity of a CCD in Example 1 above.
- FIG. 7 is a diagram showing a correlation between the irradiation angle and the amounts of reflected light of specularly reflected light and color component reflected light in Example 1 above.
- FIG. 8 is a perspective view showing a multi-story illuminating device having a light diffusing element provided with a stop structure in Example 2 of the present invention, and a side view showing how light is reflected by the light diffusing element.
- FIG. 9 is a perspective view showing a multispectral illuminating device having a stop structure and a light diffusing element in which an optical sheet is disposed in the stop structure portion in the second embodiment, and a side view of how light is reflected by the light diffusing element.
- FIG. 10 is a diagram showing a configuration of a multispectral illuminating device in which light diffusion is performed using a fiber bundle from the top side and the side surface in Embodiment 3 of the present invention, and the exit side of a bundle of fibers. The figure which shows an end surface.
- FIG. 11 is a view for explaining correction of illumination unevenness caused by irradiating light obliquely by an optical sheet in the third embodiment.
- FIGS. 1 to 7 show Embodiment 1 of the present invention.
- FIG. 1 is a diagram showing a use form of a multispectral imaging device
- FIG. 2 is a block diagram showing a configuration of the multispectral imaging device
- Fig. 3 is a diagram showing the configuration of the photographing device centered on the multi-square illumination device, also showing the lateral force.
- Fig. 4 is a front view showing the configuration of the LED substrate.
- FIG. 5 is a perspective view showing the operation of the optical sheet
- FIG. 5 is a diagram showing the top view of the configuration of the multispectral lighting device
- FIG. 6 is a diagram showing the illumination spectrum of the LED and the spectral sensitivity of the CCD
- FIG. FIG. 4 is a diagram showing a correlation between an irradiation angle and the amounts of reflected regular light and color component reflected light.
- the multispectral imaging device using the multispectral illumination device of the present embodiment is used, for example, for the purpose of accurately measuring the color of an automobile as an object.
- the system of the multispectral imaging device includes an imaging device 1 for imaging an object 4 such as an automobile, and the imaging device 1 by mounting the imaging device 1 after imaging.
- a cradle 2 that is electrically connected to receive the photographing data and also has a function of charging the photographing device 1 and the like, and that the cradle 2 is connected to the photographing data received through the cradle 2
- a personal computer hereinafter, appropriately referred to as a PC 3 for receiving and analyzing the data.
- the photographing device 1 of such a multispectral imaging device for example, by photographing the surface of an automobile, and connecting the photographing device 1 after photographing to the cradle 2, the photographing data is taken into the PC 3. Then, by performing an analysis in the PC 3, it is possible to discriminate, for example, a force in which the color of the automobile is a color painted with a regular paint or a color painted with another paint. This makes it possible to judge the condition of the vehicle without the need for specialized knowledge of painting the vehicle.
- the photographing device 1 is configured by extending a hood 6 from a main body 5.
- a power switch 7 for turning on the photographing device 1 is provided on an outer surface of the main body 5, and a photographing operation is performed.
- Button 8 for inputting a command, a contact 9 for electrically connecting to the cradle 2, and for confirming a photographed image and displaying various information relating to the photographing apparatus 1.
- An LCD unit 10 and a focus ring 11 for manually adjusting a focal position of an imaging optical system 21 described later are provided.
- LEDs 23 a to 23 h serving as a light source for illuminating the object 4, and an LED board 22 to which these LEDs 23 a to 23 h are attached!
- LED23a Illuminated surface of object 4 as uniform illumination using illumination light emitted from 23h
- the multispectral illuminating device includes the LED substrate 22, the LEDs 23a to 23h, and the illumination optical unit 24.
- the imaging optical system 21 is an optical system that can perform photographing at a close distance.
- the hood 6 is formed of only the reflected light from the object 4 illuminated by the illumination power of the LEDs 23a to 23h and the illumination optical unit 24, and This is to block light so that it is not affected by light.
- the focus ring 11 is for adjusting the position of the optical image of the object 4 formed by the imaging optical system 21 to coincide with the imaging surface of the CCD 13. Although the focus is adjusted using the focus ring 11 here, it is needless to say that the automatic focus adjustment may be performed using a mechanism such as an auto focus.
- a CCD 13 for converting an optical subject image formed by the imaging optical system 21 into an electric image signal and having an RGB color filter is further provided.
- a signal processing circuit 14 for performing various kinds of signal processing on the image signal output from the CCD 13, an LED controller 15 for controlling the LEDs 23a to 23h to emit light, and a signal processing circuit 14
- a memory 16 for storing the image data processed by the CPU and for storing a processing program executed by the control circuit 18 described later, data, and the like, and a power supply supplied from the cradle 2 through the contact 9.
- a power supply circuit 17 for supplying power supplied from the battery 19 to each circuit in the photographing apparatus 1, the CCD 13, the signal processing circuit 14, the LED controller 15, and the Mori 16,
- the power supply circuit 17 and the electric circuit board 12 on which the control circuit 18 described later are mounted, and the LCD unit 10, the signal processing circuit 14, the LED controller 15, the memory 16, the power supply circuit 17 and the power supply circuit 17 are bidirectionally connected via a bus or the like.
- a control circuit 18 for controlling the entire photographing apparatus 1 including these components.
- the cradle 2 includes a contact 39 for connecting to the contact 9 of the photographing apparatus 1 and an AC adapter 35 for converting a predetermined voltage supplied from an AC power supply into an appropriate DC voltage. And a power supply circuit 36 for supplying power supplied from the AC adapter 35 to each of the internal circuits, and performs conversion into digital data when the image data transmitted from the photographing device 1 is analog data.
- USB2IZF37 which is an interface for communicating with the PC3 by, for example, USB2, and bidirectionally connected to the FPGA32, SRAM33, AZD conversion circuit 34, power supply circuit 36, USB2I / F37 via a bus, etc.
- a CPU 31 that controls the entire saucer 2 including these, and controls communication with the photographing apparatus 1 and the PC 3.
- the PC 3 analyzes the image data received from the photographing device 1 via the cradle 2 connected by, for example, the USB 2 to determine the color of the object 4.
- Analysis software 41 is installed, and a color database 42 that is referred to when the color analysis software 41 performs color analysis is stored.
- the LEDs 23a to 23h provided on the LED board 22 are collectively stored in a plurality of light emitting units as shown in FIG. 3 (B).
- the first light-emitting unit 22a has the power of LED23c, 23f
- the second light-emitting unit 22b has the power of LED23b, 23e, 23g
- the third light-emitting unit 22c has the power of LED23a, 23d, 23h.
- one LED is provided for emitting light in eight different wavelength ranges, and a plurality of LEDs are provided corresponding to light in one wavelength range as shown in the example. No problem.
- the emission spectra of these LEDs 23a to 23h are as shown in Fig. 6; 450nm as shown in LED2 3a power S curve Sa, 505nm as shown in ED23b power S curve Sb, LED 23c power S 525 nm as shown by curve Sc, 560 nm as shown by ED23d force S curve Sd, 575 nm as shown by LE D23e force curve Se, 609 nm by LED23f as shown by curve Sf, 635 nm by LED23g as shown by curve Sg
- the LED23h is 670nm as shown by the curve Sh Each has a central emission wavelength.
- the spectral sensitivity of the CCD 13 via the RGB color filter is as shown in FIG. 6 for each filter color, and is not completely separated.
- the partially overlapping forces are almost as follows. That is, the spectral sensitivity through the B color filter substantially includes the emission band of the LED 23a and partially includes the emission band of the LED 23b as shown by the curve B. Further, the spectral sensitivity via the G color filter substantially includes the emission band of the LEDs 23b, 23c, 23d, and 23e as shown by the curve G. Further, the spectral sensitivity via the R color filter substantially includes the emission band of the LED 23f, the LED 23g, and the LED 23h as shown by the curve R.
- the illumination optical unit 24 includes a plurality of optical rods 25 for transmitting illumination light emitted from the LEDs 23a to 23h, and the optical rods 25 via the optical rods 25. And a light diffusion element 26 for diffusing the transmitted illumination light into uniform illumination light.
- the light diffusion element 26 emits light as shown in FIG. 4 and FIG.
- An optical sheet 27 for diffusing light is further provided on the end face side.
- the optical rod 25 can be of various configurations.
- a typical example is a single rod made of an optical material or a fiber bundle. One.
- the light diffusing element 26 has a substantially rectangular force as shown in FIG. 3 (A) when viewed from the side, as shown in FIG. 5 when viewed from the top (or FIG. 4 when viewed also as an oblique force).
- the light rod 25 is formed so as to have a curved shape, and is configured to reflect and diffuse the light transmitted from the optical rod 25 a plurality of times on the inner surface thereof.
- the light diffusing element 26 has a white light diffusing surface 26a on the incident side where light from the optical rod 25 is incident, and an aluminum coated reflecting surface 26b on the light emitting side where the light is emitted. It is configured. As a result, the illumination light is transmitted uniformly to the emission end without reducing the amount of light!
- the light diffusing element 26 makes an angle of about 60 degrees with respect to the optical axis of the imaging optical system 21 as shown in FIG. It is arranged as follows. This effectively captures the reflected light of the color components while suppressing the effects of specularly reflected light. This is an arrangement based on a design that can be used.
- the angle force between the central axis of the irradiation light beam and the imaging optical axis is SO degree
- the amount of the specularly reflected light becomes the largest.
- the amount of specularly reflected light decreases, and from around 45 degrees, there is almost no practical effect.
- the light quantity of the color component reflected light also decreases as the largest angle increases when the angle is 0 degrees.
- the amount of color component reflected light is attenuated more slowly than the amount of specular reflected light, the difference in the amount of reflected light increases, that is, the SN ratio improves.
- the color component reflected light still maintains a practical light amount. Thereafter, when the angle further increases to about 75 degrees, the decrease in the amount of the color component reflected light becomes so large that it cannot be ignored, and is out of the practical range. Therefore, as a practical range in which the SN ratio is high and the required amount of color component reflected light can be obtained, a range where the angle is 45 ° to 75 ° is mentioned. Even in such a practical range, the angle at which the most efficient color measurement can be performed with the highest accuracy is set to approximately 60 degrees in this embodiment.
- the optical sheet 27 has a plane of incidence 27 a and a plane of emission 27 b, and diffuses illumination light uniformized by the light diffusing element 26. Then, the light is further diffused and homogenized to irradiate the object 4 with the force.
- the user turns on the power of the imaging device 1 by operating the power switch 7 with the hood 6 side of the imaging device 1 facing the imaging target portion of the object 4.
- the power is supplied from each of the circuit power S batteries 19 on the electric circuit board 12 to start driving.
- the control circuit 18 When starting the operation according to the control program, the control circuit 18 performs a predetermined initialization or the like, and then controls the current supply to the LED board 22 via the LED controller 15. As a result, the LEDs 23a to 23h arranged on the LED board 22 are lit, for example, all at the same time. The LEDs 23a-23h can thus all be turned on at the same time. On the other hand, it is also possible to turn on any one or any two or more. all The lighting of all the LEDs 23a to 23h is used, for example, when observing the object 4 via the LCD unit 10, and the individual lighting of the LEDs 23a to 23h is used, for example, when measuring the color of the object 4.
- the current value supplied to the LEDs 23a to 23h is configured to be changeable.
- the observation is performed by the LCD unit 10, by changing the current value and controlling the light amount, It is desirable to reduce the power consumption while observing the object 4 with an appropriate illuminance.
- the LEDs 23a to 23h When power is supplied to the LEDs 23a to 23h in this manner, the LEDs 23a to 23h emit light of respective wavelengths at a predetermined emission angle. This light is applied as illumination light to the object 4 via the illumination optical unit 24.
- the user adjusts the focus by operating the focus ring 11 while observing the portion to be photographed of the object 4 through the screen of the LCD unit 10, thereby focusing on the portion to be photographed. Match. Then, by pressing the shirt button 8 when the subject is in focus, an image capturing operation for colorimetry of the photographing target portion is started.
- the control circuit 18 instructs the LED controller 15 to perform a light emitting operation in the measurement mode.
- the LED controller 15 operates the eight LEDs 23a to 23h on the LED board 22 to which the current is supplied, so that the LEDs 23a to 23h are repeatedly turned on and off at intervals of 1Z30 seconds. Since the LEDs 23a to 23h have different luminous efficiencies for the respective wavelengths as shown in FIG. 6, the LED controller 15 controls a current value to emit a light amount necessary for photographing.
- the light emitted from the LEDs 23 a-23 h at a predetermined angle enters the optical rod 25 and is transmitted to the light diffusing element 26.
- the light diffusing element 26 is formed, for example, in a box shape having a hollow inside, and the white diffusing surface 26a diffusely reflects light of all wavelengths at a reflectance without depending on the wavelength. This is the surface coated with fine white paint particles on the inner surface. Due to the reflection effect of the white diffusion surface 26a, diffusion of the transmitted light is surely promoted.
- Such a diffusion promoting action is repeated a plurality of times by the white diffusion surface 26a.
- the reflection is performed by the aluminum-coated reflecting surface 26b with almost no decrease in the amount of light.
- the state becomes close to integrated light.
- This light is further diffused by the first optical sheet 27, and is radiated to the object 4 as illumination light having improved uniformity on the irradiation surface. At this time, since the external light is blocked by the hood 6, the object 4 is almost illuminated only by the illumination light from the LED.
- the irradiated light is reflected by the object 4, enters the imaging optical system 21, and forms an image on the imaging surface of the CCD 13.
- the light incident on the imaging optical system 21 is substantially only the color component reflected light and hardly includes the specular reflected light for the above-described reason.
- the image data generated by the photoelectric conversion by the CCD 13 is signal-processed by the signal processing circuit 14 and then stored in the memory 16.
- Such an operation is performed in accordance with the sequential lighting and extinction of the LEDs 23a to 23h, and is sequentially stored in the image data memory 16 corresponding to each of the eight wavelengths.
- the capture of the eight types of image data may be performed only once, but may be repeated a plurality of times in order to improve data reliability.
- the user places the imaging device 1 on the saucer 2 and electrically connects the contact points 9 and 39.
- control circuit 18 of the photographing apparatus 1 and the CPU 31 of the cradle 2 communicate with each other,
- the image data stored in 16 is transferred from the photographing device 1 to the cradle 2.
- the cradle 2 stores the received image data in the SRAM 33 and then stores the received image data in the FPG.
- the PC 3 analyzes the received image data by using the installed color analysis software 41.
- the PC 3 refers to the color database 42 stored in the PC 3 and outputs the data. Analysis will be performed. As a result, the accurate color of the subject is clearly analyzed on the PC 3, and the result is displayed on a monitor or the like of the PC 3.
- the not- erage of the photographing device 1 can be improved.
- the light diffusing element is provided in the multispectral illuminating device, it is possible to irradiate the light that has also emitted the LED light as uniform illuminating light. Furthermore, since the LED light transmits the emitted light to the light diffusing element using the optical rod, the light can be effectively transmitted without losing the light. Since the white light diffusing surface is provided in the light diffusing element, illumination light can be efficiently uniformized. Since the optical sheet having the function of diffusing light is provided on the exit surface of the light diffusing element, the illumination light can be made more uniform.
- the central axis of the luminous flux of the illumination light forms an angle of approximately 60 degrees with respect to the imaging optical axis in a range of 45 degrees to 75 degrees, it is almost unaffected by specular reflection light. In addition, it is possible to efficiently capture the light of the color component reflected light. Thereby, accurate color measurement can be performed.
- FIGS. 8 and 9 show Embodiment 2 of the present invention.
- FIG. 8 is a perspective view showing a multispectral illuminating device having a light diffusing element provided with a diaphragm structure
- FIG. 9 is a side view showing the state of reflection.
- FIG. 9 is a perspective view showing a multi-spectral illuminating device having a stop structure and a light diffusing element in which an optical sheet is arranged in the stop structure
- FIG. It is a figure showing a situation from the side.
- the shape of the light diffusing element 26 is changed. That is, the shape of the light diffusing element 26 of the second embodiment when viewed from the top is almost the same as that shown in FIG. 5 of the first embodiment, but the shape when the side force is also viewed is shown in FIG. As shown in (B) (or as seen from the oblique shape as shown in Fig. 8 (A)), the center is narrowed.
- the light diffusing element 26 is located in the middle of an optical path for transmitting light between the incident white diffusion surface 26a on which light is incident and the aluminum coating reflection surface 26b on the exit side for emitting light.
- a narrowing portion 26c is provided.
- the aperture section 26c has an area of a cross section substantially perpendicular to the optical path for transmitting light, which is smaller than an area of an incident side end face on which the light from the optical rod 25 is incident, and transmits the light toward the optical sheet 27. Smaller than the area of the exit end face to be irradiated , In the form of a diaphragm.
- the light from the LEDs 23a to 23h enters the light diffusing element 26 via the optical rod 25
- the light from the LEDs 23a to 23h is reflected a plurality of times on the incident-side white diffusing surface 26a toward the aperture section 26c.
- the luminous flux converges.
- the diffusion of light is promoted in the process of converging this light flux.
- the luminous flux spreads while being reflected by the aluminum-coated reflecting surface 26b, starting from the aperture portion 26c.
- the aluminum-coated reflecting surface 26b is formed, for example, in a shape similar to a paraboloid as shown in FIG.
- the light irradiated from the focal point of the paraboloid is Similarly to the light reflected as the light parallel to the axis of symmetry, the light rays reflected on the aluminum-coated reflecting surface 26b become light rays substantially parallel to each other. In this way, a light beam that has become uniform and substantially parallel is emitted from the light diffusion element 26.
- the light emitted from the light diffusion element 26 is further diffused by the optical sheet 27 and then radiated to the object 4, as in the first embodiment.
- FIG. 9 shows a configuration example in which an optical sheet 28 having a light diffusion function is provided inside a light diffusion element 26 having the shape shown in FIG.
- the optical sheet 27 is provided on the emission surface side of the light diffusion element 26, but in the configuration examples shown in FIGS. 9 (A) and 9 (B), The optical sheet 28 is provided inside the light diffusion element 26. That is, the optical sheet 28 is disposed at the stop 26c where the light beam converges most in the light diffusing element 26.
- the same effects as in the first embodiment described above are obtained, and moreover, since the light beam is converged and expanded afterward due to the provision of the aperture section, more light is emitted. Times more times, more uniform illumination light can be obtained.
- the illumination light having the same degree of uniformity as in the first embodiment is sufficient, it is possible to further reduce the size of the light diffusion element, such as shortening the entire length. As a result, a smaller multi-spectral illuminating device and eventually a smaller multi-spectral imaging device can be configured.
- the optical sheet is provided in the diaphragm, the light illuminating the object is not prevented from becoming substantially parallel light.
- FIG. 10 and FIG. 11 show Embodiment 3 of the present invention.
- FIG. 10 shows a configuration of a multispectral illuminating device in which light is diffused by using a fiber bundle on the upper surface side and the side surface side.
- FIG. 11 is a diagram illustrating force and an end surface on the emission side of the fiber bundle, and
- FIG. 11 is a diagram for explaining correction of illumination unevenness by an optical sheet caused by irradiating light obliquely.
- the multispectral lighting device of the third embodiment equalizes the LED substrate 22, the LEDs 23a to 23h disposed on the LED substrate 22, and the light emitted from the LEDs 23a to 23h. And a fiber bundle 52 that constitutes a fiber unit. The fiber bundle 52 is used to correct illumination unevenness due to oblique light irradiation from the fiber bundle 52 toward the object 4. And a second optical sheet 54 to be constituted.
- the fiber bundle 52 is configured as a bundle of a plurality of ultrafine single fibers (optical fibers) of, for example, about 50 ⁇ m.
- One end of the fiber bundle 52 emits light with a predetermined emission angle from the LEDs 23a to 23h.
- the incoming light bundles 51a to 51h for receiving the respective lights to be incident, and the other end side serve as the outgoing light bundle 53 for irradiating the object 4 with light.
- Each of the optical fibers bundled by being divided into eight bundles in the light incident bundles 51a to 51h is randomly mixed with each other in the optical path for transmitting the light, and The bundle is again bundled as shown in the arrow A view of FIG.
- the number of optical fibers bundled in the light incident bundles 51a to 51h depends on the luminous efficiency of each of the LEDs 23a to 23h. Numbers have been assigned. For example, assuming that the ratio of the respective luminous efficiencies of the LEDs 23a, 23h, and 23d shown in FIG. 10B is 1: 1.5: 2, the optical fibers of the corresponding light incident bundles 51a, 51h, and 51d are They are bundled in a ratio of 1: 0.67: 0.5.
- the illumination light is emitted from a light emission bundle 53 as shown in FIG. 10C as illumination light uniformly dispersed by being randomly mixed.
- the light output bundle 53 has the central axis of the light beam radiated toward the illuminated surface.
- the optical system 21 is disposed so as to form an angle of about 60 degrees with the optical axis. The reason is that, as described in the first embodiment, the reflected light of the color component is efficiently captured while suppressing the influence of the specularly reflected light.
- Light emitted from the light bundle 53 at such an angle may cause illumination unevenness on the irradiated surface of the object 4, for example, as shown in FIG. 11C.
- the force provided to correct such illumination unevenness is the second optical sheet 54 described above.
- the optical sheet 54 has gradation characteristics as shown in FIG. 11 (D), and its characteristic curve has a shape in which the luminance distribution of illumination unevenness is reversed.
- Illumination light power from the light exit bundle 53 When passing through such an optical sheet 54, the illuminated surface as shown in FIG. In addition, it is possible to perform illumination without uneven illumination.
- An optical sheet for diffusing transmitted light such as that used in Examples 1 and 2, may be further arranged in the optical path of the fiber bundle. In this case, it is possible to irradiate the light more uniformly diffused.
- the optical fibers are randomly mixed between the incident side and the output side using the fiber bundle. Almost the same effects can be achieved.
- the second optical sheet on the light exit side surface of the light exit bundle, illumination unevenness caused by irradiating light obliquely can be satisfactorily corrected, and uniformity can be achieved on the irradiated surface of the object. Uniform illuminance can be obtained.
- the second optical sheet 54 used in the third embodiment is the same as the first optical sheet 54 in the first embodiment.
- 2 can be used on the exit surface side of the light diffusion element 26, and in this case, the same effect can be obtained.
- the light diffusing elements 26 of the above-described first to third embodiments are not limited to being configured by applying white paint particles to the inner surface of the white diffusing surface 26a.
- a high-performance (light-diffusing element) is mixed with a material and formed by injection molding or the like, so that a light-diffusing element having high performance can be formed by painting or the like. It is possible to easily and inexpensively obtain the secondary power, without the need for the secondary power.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005515432A JP4091079B2 (ja) | 2003-11-14 | 2004-11-10 | マルチスペクトル撮像装置、マルチスペクトル照明装置 |
US11/418,348 US7446299B2 (en) | 2003-11-14 | 2006-05-04 | Multi-spectrum image capturing device and multi-spectrum illuminating device |
US11/669,779 US7411177B2 (en) | 2003-11-14 | 2007-01-31 | Multi-spectrum image capturing device and multi-spectrum illuminating device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003385540 | 2003-11-14 | ||
JP2003-385540 | 2003-11-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/418,348 Continuation US7446299B2 (en) | 2003-11-14 | 2006-05-04 | Multi-spectrum image capturing device and multi-spectrum illuminating device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005047833A1 true WO2005047833A1 (ja) | 2005-05-26 |
Family
ID=34587368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/016662 WO2005047833A1 (ja) | 2003-11-14 | 2004-11-10 | マルチスペクトル撮像装置、マルチスペクトル照明装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7446299B2 (ja) |
JP (1) | JP4091079B2 (ja) |
WO (1) | WO2005047833A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1762240A1 (en) | 2005-09-09 | 2007-03-14 | Johnson & Johnson Consumer Companies, Inc. | Compositions for inhibiting or reducing inflammation of skin |
WO2007147493A1 (de) * | 2006-06-22 | 2007-12-27 | Berthold Detection Systems Gmbh | Test-lichtquelle |
JP2009520991A (ja) * | 2005-12-20 | 2009-05-28 | サイテック コーポレイション | Led照明源を有する顕微鏡 |
JP2015007659A (ja) * | 2014-10-16 | 2015-01-15 | セイコーエプソン株式会社 | 分光測定装置及び波長可変干渉フィルター |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10330003B4 (de) * | 2003-07-03 | 2007-03-08 | Leica Microsystems Semiconductor Gmbh | Vorrichtung, Verfahren und Computerprogramm zur Wafer-Inspektion |
WO2005047833A1 (ja) * | 2003-11-14 | 2005-05-26 | Olympus Corporation | マルチスペクトル撮像装置、マルチスペクトル照明装置 |
JP4360399B2 (ja) * | 2006-11-30 | 2009-11-11 | ソニー株式会社 | 撮像装置 |
WO2009024978A2 (en) * | 2007-08-21 | 2009-02-26 | Camtek Ltd. | Method and system for low cost inspection |
JP5348881B2 (ja) * | 2007-12-25 | 2013-11-20 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 振動補償制御回路 |
US8845162B2 (en) * | 2011-05-04 | 2014-09-30 | Honeywell International Inc. | Collimated illumination using light pipes |
US20130148107A1 (en) * | 2011-12-07 | 2013-06-13 | Honeywell Asca Inc. | Multi-source sensor for online characterization of web products and related system and method |
KR101383805B1 (ko) | 2012-04-02 | 2014-04-10 | 주식회사 에스피바이오 | 레이저빔을 이용한 젤 이미징 장치 |
CN105026903A (zh) * | 2012-11-02 | 2015-11-04 | 变量公司 | 用于色彩感测、储存和比较的计算机实施的系统和方法 |
WO2015195746A1 (en) | 2014-06-18 | 2015-12-23 | Innopix, Inc. | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter arrays and image capture arrays |
US9894257B2 (en) * | 2015-05-13 | 2018-02-13 | Apple Inc. | Light source module with adjustable diffusion |
WO2019082311A1 (ja) * | 2017-10-25 | 2019-05-02 | 株式会社ニコン | 加工装置、及び、移動体の製造方法 |
US10972643B2 (en) | 2018-03-29 | 2021-04-06 | Microsoft Technology Licensing, Llc | Camera comprising an infrared illuminator and a liquid crystal optical filter switchable between a reflection state and a transmission state for infrared imaging and spectral imaging, and method thereof |
US10924692B2 (en) | 2018-05-08 | 2021-02-16 | Microsoft Technology Licensing, Llc | Depth and multi-spectral camera |
US10477173B1 (en) * | 2018-05-23 | 2019-11-12 | Microsoft Technology Licensing, Llc | Camera with tunable filter and active illumination |
US10931894B2 (en) | 2018-10-31 | 2021-02-23 | Microsoft Technology Licensing, Llc | Tunable spectral illuminator for camera |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05187919A (ja) * | 1991-07-10 | 1993-07-27 | Eaton Corp | 直径を異にする光ファイバーを用いた色感知装置 |
JPH08247929A (ja) * | 1995-03-14 | 1996-09-27 | Nippon Steel Corp | 照明装置 |
JPH10132663A (ja) * | 1996-10-25 | 1998-05-22 | Omron Corp | 光学式センサ装置 |
JP2002345760A (ja) * | 2001-03-21 | 2002-12-03 | Shiseido Co Ltd | 分光反射率測定装置 |
JP2003153041A (ja) * | 2001-11-14 | 2003-05-23 | Olympus Optical Co Ltd | 資料提示装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4033698A (en) | 1975-10-10 | 1977-07-05 | International Business Machines Corporation | Apparatus for textile color analysis |
US4995727A (en) * | 1987-05-22 | 1991-02-26 | Minolta Camera Kabushiki Kaisha | Compact diffusion light mixing box and colorimeter |
JPH07296615A (ja) | 1994-04-26 | 1995-11-10 | Omron Corp | 拡散光照射装置 |
JP2917866B2 (ja) * | 1995-07-17 | 1999-07-12 | 日亜化学工業株式会社 | Led面光源 |
JPH09218356A (ja) | 1995-12-04 | 1997-08-19 | Keyence Corp | 光学装置および照明ヘッド |
JPH09270885A (ja) | 1996-03-29 | 1997-10-14 | Dainippon Screen Mfg Co Ltd | 照明光学系 |
US5963333A (en) * | 1996-09-12 | 1999-10-05 | Color Savvy Systems Limited | Color sensor |
JPH10134621A (ja) | 1996-11-05 | 1998-05-22 | Disco Abrasive Syst Ltd | 照明器具 |
JP3218601B2 (ja) | 1997-11-12 | 2001-10-15 | 花王株式会社 | 測色装置 |
JPH11305141A (ja) | 1998-04-16 | 1999-11-05 | Keyence Corp | 拡大撮像装置および光学装置 |
JP3297737B2 (ja) | 2000-02-16 | 2002-07-02 | 埼玉大学長 | 分光画像撮像装置 |
US6512577B1 (en) * | 2000-03-13 | 2003-01-28 | Richard M. Ozanich | Apparatus and method for measuring and correlating characteristics of fruit with visible/near infra-red spectrum |
JP3618090B2 (ja) | 2001-10-23 | 2005-02-09 | 株式会社ニレコ | コリメータ及び分光測光装置 |
EP1314972B1 (de) * | 2001-11-26 | 2010-07-14 | X-Rite Europe GmbH | Spektralphotometer und Verwendung desselben |
WO2005047833A1 (ja) | 2003-11-14 | 2005-05-26 | Olympus Corporation | マルチスペクトル撮像装置、マルチスペクトル照明装置 |
-
2004
- 2004-11-10 WO PCT/JP2004/016662 patent/WO2005047833A1/ja active Application Filing
- 2004-11-10 JP JP2005515432A patent/JP4091079B2/ja active Active
-
2006
- 2006-05-04 US US11/418,348 patent/US7446299B2/en not_active Expired - Fee Related
-
2007
- 2007-01-31 US US11/669,779 patent/US7411177B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05187919A (ja) * | 1991-07-10 | 1993-07-27 | Eaton Corp | 直径を異にする光ファイバーを用いた色感知装置 |
JPH08247929A (ja) * | 1995-03-14 | 1996-09-27 | Nippon Steel Corp | 照明装置 |
JPH10132663A (ja) * | 1996-10-25 | 1998-05-22 | Omron Corp | 光学式センサ装置 |
JP2002345760A (ja) * | 2001-03-21 | 2002-12-03 | Shiseido Co Ltd | 分光反射率測定装置 |
JP2003153041A (ja) * | 2001-11-14 | 2003-05-23 | Olympus Optical Co Ltd | 資料提示装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1762240A1 (en) | 2005-09-09 | 2007-03-14 | Johnson & Johnson Consumer Companies, Inc. | Compositions for inhibiting or reducing inflammation of skin |
JP2009520991A (ja) * | 2005-12-20 | 2009-05-28 | サイテック コーポレイション | Led照明源を有する顕微鏡 |
WO2007147493A1 (de) * | 2006-06-22 | 2007-12-27 | Berthold Detection Systems Gmbh | Test-lichtquelle |
JP2015007659A (ja) * | 2014-10-16 | 2015-01-15 | セイコーエプソン株式会社 | 分光測定装置及び波長可変干渉フィルター |
Also Published As
Publication number | Publication date |
---|---|
JP4091079B2 (ja) | 2008-05-28 |
JPWO2005047833A1 (ja) | 2007-11-29 |
US7411177B2 (en) | 2008-08-12 |
US7446299B2 (en) | 2008-11-04 |
US20060203213A1 (en) | 2006-09-14 |
US20070120046A1 (en) | 2007-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4091079B2 (ja) | マルチスペクトル撮像装置、マルチスペクトル照明装置 | |
US20080024868A1 (en) | Illuminating Unit and Imaging Apparatus | |
US7697838B2 (en) | Illumination apparatus and image-taking apparatus | |
US7878688B2 (en) | Lamp assembly | |
CN101208594B (zh) | 光源的平面阵列所发射的收敛光线的获得 | |
KR101350214B1 (ko) | 비접촉식 발광다이오드 검사장치와 이를 이용한 검사방법 | |
JP2003107390A (ja) | 画像装置の視野内の照明濃度を増加するための方法及び装置 | |
WO2017160236A1 (en) | Lighting device and inspection apparatus | |
JP2008089599A (ja) | マルチスペクトル撮像装置、マルチスペクトル照明装置 | |
JP2006003103A (ja) | 照明ユニット及び撮像装置 | |
CN110018127A (zh) | 分光反射测定器 | |
CN109310311A (zh) | 内窥镜用光源装置、内窥镜以及内窥镜系统 | |
US7965917B2 (en) | Illuminating apparatus and surface inspection system using illuminating apparatus | |
JP2005148020A (ja) | マルチスペクトル撮像装置、マルチスペクトル照明装置 | |
TW202037889A (zh) | 用於包含匹配光譜濾波器之光學成像之系統 | |
JP4312208B2 (ja) | 照明ユニット及び撮像装置 | |
JP7046511B2 (ja) | 同軸落射照明装置 | |
JP2005339879A (ja) | 照明素子、照明ユニット及び撮像装置 | |
US20200083417A1 (en) | Semiconductor light source | |
FR2894667A1 (fr) | Systeme de mesure optique de la colorimetrie d'un objet | |
JP2006029790A (ja) | 照明ユニット及び撮像装置 | |
JPH1012011A (ja) | 照明装置 | |
WO2022091312A1 (ja) | 外観検査装置、照明装置及び外観検査方法 | |
JP2017003360A (ja) | 光源装置 | |
CN115087387A (zh) | 配光检查装置、配光检查方法、内窥镜系统以及存储介质 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005515432 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11418348 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 11418348 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |