Abstract:
A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided.
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:
A measuring apparatus for an ear thermometer includes a battery, a mode switching circuit and a microcontroller, and the microcontroller, during a run mode or a normal operating state, does not pass battery current to the mode switching circuit in order that the insertion of the mode switching circuit causes no substantial change in power consumption so as to suppress a power consumption of the apparatus and extend the power of the battery.
Abstract:
A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associated color of a structure is also provided.
Abstract:
In the spectroscopy module 1, a light detecting element 4 is provided with a light passing opening 4b through which light made incident into a body portion 2 passes. Therefore, it is possible to prevent deviation of the relative positional relationship between the light passing opening 4b and a light detection portion 4a of the light detecting element 4. Further, an optical element 7, which guides light made incident into the body portion 2, is arranged at the light passing opening 4b. Therefore, light, which is to be made incident into the body portion 2, is not partially blocked at a light incident edge portion of the light passing opening 4b, but light, which is to be made incident into the body portion 2, can be guided securely. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
In the spectroscopy module 1, a light absorbing layer 6 having a light-passing hole 6a through which light L1 advancing into a spectroscopic portion 3 passes and a light-passing hole 6b through which light L2 advancing into a light detecting portion 4a of a light detecting element 4 passes is integrally formed by patterning. Therefore, it is possible to prevent deviation of the relative positional relationship between the light-passing hole 6a and the light-passing hole 6b. Further, since the occurrence of stray light is suppressed by the light absorbing layer 6 and the stray light is absorbed, the light detecting portion 4a of the light detecting element 4 can be suppressed from being made incident. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
The spectroscopy module 1 is provided with a body portion 2 for transmitting light L1, L2, a spectroscopic portion 3 for dispersing light L1 made incident from the front plane 2a of the body portion 2 into the body portion 2 to reflect the light on the front plane 2a, a light detecting element 4 having a light detecting portion 41 for detecting the light L2 dispersed and reflected by the spectroscopic portion 3 and electrically connected to a wiring 9 formed on the front plane 2a of the body portion 2 by face-down bonding, and an underfill material 12 filled in the body portion 2 side of to the light detecting element 4 to transmit the light L1, L2.
Abstract:
In a spectroscopy module 1, a light passing hole 50 through which a light L1 advancing to a spectroscopic portion 4 passes is formed in a light detecting element 5. Therefore, it is possible to prevent the relative positional relationship between the light passing hole 50 and a light detecting portion 5a of the light detecting element 5 from deviating. Moreover, the light detecting element 5 is bonded to a front plane 2a of a substrate 2 with an optical resin adhesive 63. Thus, it is possible to reduce a stress generated onto the light detecting element 5 due to a thermal expansion difference between the light detecting element 5 and the substrate 2. Additionally, the light transmissive plate 16 covers a part of a light incident opening 50a. Thus, a light incident side surface 63a of the optical resin adhesive 63 becomes a substantially flat plane in the light passing hole 50. Therefore, it is possible to make the light L1 appropriately incident into the substrate 2.
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.