Abstract:
This specification describes various embodiments that relate to methods for providing a wideband colorimeter that can include more accurate outputs. In one embodiment, a narrowband instrument, such as a spectrometer or spectrograph, can be used for calibration of a wideband colorimeter, so that more accurate outputs can be provided. In one embodiment, an optical test equipment, which consists of both a wideband colorimeter and a narrowband spectrograph, can be used for providing a more accurately calibrated wideband colorimeter. As an example, a spectra-camera, which is a hybrid system consisting of both a wideband colorimeter and a narrowband spectrograph, can be used for simultaneous testing by both the wideband colorimeter and the narrowband spectrograph. By doing simultaneous testing, accurate calibration of the wideband colorimeter can be achieved. This specification further describes a mathematical model to characterize a wideband three channel colorimeter with a narrowband multiple channel spectrometer.
Abstract:
First, a box 5 molded from a resin is prepared such as to have a rectangular parallelepiped outer form with a pair of grooves on the bottom face and a semispherical recess 9. Subsequently, a photocurable resin agent 27 is applied to a bottom area 12 of the recess 10 in the box 5. Then, while a light transmitting mold 28 having a bottom face formed with a plurality of grating grooves arranged in a row along a predetermined direction is pressed against the applied resin agent 27, the resin agent 27 is cured by irradiation with light, so as to provide the area 12 in the recess 10 with the grating 29 formed with a plurality of grating grooves. Next, Al, Au, or the like is vapor-deposited so as to cover the grating 29, thereby forming a reflecting film 15. Then, a photodetector 4 is accommodated in a package 2. This can easily manufacture a highly reliable spectrometer.
Abstract:
A spectrometer 1, in which a spectroscopic unit 3 spectrally resolves and reflects light L1 having entered the inside of a package 2 while a photodetector 4 detects reflected light L2, comprises a package 2 accommodating the photodetector 4 therein. The package 2 has a semispherical recess 10, while the recess 10 has a bottom face formed with an area 12 having a plurality of grating grooves 14 arranged in a row along a predetermined direction and an area 13 surrounding the area 12. The areas 12 and 13 are continuous with each other and formed on the same curved surface. This can inhibit the grating grooves 14 from shifting their positions even when distortions are generated in the package 2.
Abstract:
The present invention provides a highly reliable spectral module. The spectral module (1) of the present invention comprises a substrate (2) for transmitting therethrough light incident on one surface (2a); a lens unit (3), having an entrance surface (3a) opposing the other surface (2b) of the substrate (2), for transmitting therethrough the light entering from the entrance surface (3a) after passing through the substrate (2); a spectroscopic unit (4), formed with the lens unit (3), for spectrally resolving and reflecting the light having entered the lens unit (3); a photodetector (4) for detecting the light reflected by the spectroscopic unit (4); and a support unit (8), disposed between the other surface (2b) and the entrance surface (3a), for supporting the lens unit (3) against the substrate (2). Since the support unit (8) forms a gap between the other surface (2b) and the entrance surface (3a) in the spectral module (1), the other surface (2b) and the entrance surface (3a) are prevented from coming into contact with each other and causing damages, whereby the spectral module (1) can improve its reliability.
Abstract:
In a spectral module 1, a photodetector 5 is mounted to an intermediate substrate 81, whereby an optical resin agent 63 interposed between a front face 2a of a substrate 2 and the intermediate substrate 81 is prevented from intruding into a light transmitting hole 50 of the photodetector 5. This can prevent refraction, scattering, and the like from occurring and make light L1 appropriately enter a spectroscopic unit 4. In addition, the intermediate substrate 81 has a volume smaller than that of the substrate 2, whereby the intermediate substrate 81 expands/shrinks in a state more similar to the photodetector 5 than the substrate 2 when the temperature in the surroundings of the spectral module 1 changes. Hence, bump connections of the photodetector 5 can more reliably be prevented from breaking upon changes in the temperature in the surroundings of the spectral module 1 than when the photodetector 5 is mounted to the substrate 2.
Abstract:
Ein 3DBildeszeugungssystem bei dem von einer Lichtquelle (45') ein gepulster Strahl ausgesendet wird, von einem Objekt (44) reflektiert, und anschliessend zeitlich getaktet in einem multispektralen Bildsensor (40) aufgenommen wird. Aus der kombinierten Antwort bei verschiedenen Wellenlängen kann aus der Zeit messung und den 2D Bild aufnahmen ein 3D-Bild des Objektes erzeugt werden. Der multispektrale Bildsensor ist einem zweidimensionalen Array aus Superpixel ausgestattet wobei jeder Superpixel wenigstens fünf Sensorelemente aufweist mit jeweils einem Pixelsensor, einer Filterstruktur mit wenigstens einer strukturierten Schicht aus Metall oder polykristallinem Halbleitermaterial, die ansprechend auf elektromagnetische Strahlung eines Wellenlängenbereichs eine höhere Transmission durch die Filterstruktur zu dem Pixelsensor ergibt als für den Wellenlängenbereich umgebende Wellenlängen, wobei die wenigstens fünf Sensorelemente gemeinsam auf einem Halbleitersubstrat integriert sind und paarweise auf unterschiedliche Wellenlängenbereiche ausgelegt sind.
Abstract:
Ein 3DBildeszeugungssystem bei dem von einer Lichtquelle (45') ein gepulster Strahl ausgesendet wird, von einem Objekt (44) reflektiert, und anschliessend zeitlich getaktet in einem multispektralen Bildsensor (40) aufgenommen wird. Aus der kombinierten Antwort bei verschiedenen Wellenlängen kann aus der Zeit messung und den 2D Bild aufnahmen ein 3D-Bild des Objektes erzeugt werden. Der multispektrale Bildsensor ist einem zweidimensionalen Array aus Superpixel ausgestattet wobei jeder Superpixel wenigstens fünf Sensorelemente aufweist mit jeweils einem Pixelsensor, einer Filterstruktur mit wenigstens einer strukturierten Schicht aus Metall oder polykristallinem Halbleitermaterial, die ansprechend auf elektromagnetische Strahlung eines Wellenlängenbereichs eine höhere Transmission durch die Filterstruktur zu dem Pixelsensor ergibt als für den Wellenlängenbereich umgebende Wellenlängen, wobei die wenigstens fünf Sensorelemente gemeinsam auf einem Halbleitersubstrat integriert sind und paarweise auf unterschiedliche Wellenlängenbereiche ausgelegt sind.