Abstract:
Provided is a device for determining the surface topology and associated color of a structure, such as a teeth segment, including 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 a spectroscopy module 1, a light passing hole 5b 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 5b and a light detecting portion 5a of the light detecting element 5 from deviating. Moreover, the light to be measured L1 advancing to the spectroscopic portion 4 via the light passing hole 5b and the diffracted lights L2 advancing to the light detecting portion 5a from the spectroscopic portion 4 pass through a void formed between the light detecting element 5 and the substrate 2 by an opening portion 10a of a wiring substrate 10. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
The spectroscopy module is provided with a body portion for transmitting light, a spectroscopic portion for dispersing light made incident from the front plane of the body portion into the body portion to reflect the light on the front plane, a light detecting element having a light detecting portion for detecting the light dispersed and reflected by the spectroscopic portion and electrically connected to a wiring formed on the front plane of the body portion by face-down bonding, and an underfill material filled in the body portion side of the light detecting element to transmit the light. The light detecting element is provided with a light-passing hole through which the light advancing into the spectroscopic portion passes, and a reservoir portion is formed on a rear plane of the body portion side in the light detecting element so as to enclose a light outgoing opening of the light-passing hole.
Abstract:
In the spectrometer 1, a lens portion 3 having a spherical surface 35 on which a spectroscopic portion 4 is provided and a bottom plane 31 in which a light detecting element 5 is disposed, has a side plane 32 substantially perpendicular to the bottom plane 31 and a side plane 34 substantially perpendicular to the bottom plane 31 and the side plane 32. Then, a package 11 that houses a spectroscopy module 10 has side planes 16 and 18 respectively coming into planar-contact with the side planes 32 and 34, and contact portions 22 coming into contact with the spherical surface 35. Therefore, the side planes 32 and 34 of the lens portion 3 are respectively brought into planar-contact with the side planes 16 and 18 of the package 11 while bringing the spherical surface 35 of the lens portion 3 into contact with the contact portions 22 of the package 11, that positions the spectroscopic portion 4 and the light detecting element 5 with respect to a light incident window plate 25 of the package 11.
Abstract:
A fibre optic transmission application, in particular, an optical device that can be incorporated into telecommunications equipment as well as into test and measurement equipment with reduced insertion loss, reduced crosstalk effects and reduced height, with increased versatility in the implementation of optical functions other than multiplexers and demultiplexers. Relates to components, modules, equipments and instruments such as multiplexers, demultiplexers, routers, channel monitors, and tunable filters that encompass such optical devices.
Abstract:
Provided is a device for determining the surface topology and associated color of a structure, such as a teeth segment, including 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:
To provide a highly-reliable spectroscopy module. In a spectroscopy module 1, a light passing hole 5b 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 5b and a light detecting portion 5a of the light detecting element 5 from deviating. Moreover, the light to be measured L1 advancing to the spectroscopic portion 4 via the light passing hole 5b and the diffracted lights L2 advancing to the light detecting portion 5a from the spectroscopic portion 4 pass through a void formed between the light detecting element 5 and the substrate 2 by an opening portion 10a of a wiring substrate 10. Thereby, it is possible to prevent a situation in which the light to be measured L1 and the diffracted lights L2 are scattered or the like due to a resin adhesive 16 or the like interposed between the light detecting element 5 and the substrate 2. Therefore, it is possible to prevent generation of stray light. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
A fibre optic transmission application, in particular, an optical device that can be incorporated into telecommunications equipment as well as into test and measurement equipment with reduced insertion loss, reduced crosstalk effects and reduced height, with increased versatility in the implementation of optical functions other than multiplexers and demultiplexers. Relates to components, modules, equipments and instruments such as multiplexers, demultiplexers, routers, channel monitors, and tunable filters that encompass such optical devices.
Abstract:
A photodiode array, having a plurality of photodiodes 12 (n-type channel regions 121), and a light entrance portion 13, formed of an opening that is used to make light to be detected by photodiodes 12 enter, are provided in a substrate 10 of a photodetector 1A having an n-type substrate 101 and a p-type epitaxial layer 102. Furthermore, a carrier capturing portion 60, for capturing carriers generated at a substrate portion near the light entrance portion 13 and removes the captured carriers to the exterior via an electrode 61, is arranged from a layer portion of the epitaxial layer 102 that is positioned between the photodiode array 11 and the light entrance portion 13. A photodetector of a simple arrangement, which, when applied to a spectrometer, enables the positioning precision of components of the spectrometer to be improved, and a spectrometer using this photodetector are thus realized.
Abstract:
A microscope including an optical unit and a collimator. The collimator is arranged preceding or following the optical unit in a beam path of the optical system. The optical unit imposes a predetermined longitudinal chromatic aberration on a beam supplied to a beam path and the beam impinges on the collimator as a diverging beam or a parallel beam and is converted by the collimator into a parallel beam or a converging beam. The collimator includes at least one lens as well as a curved mirror which folds the beam path such that the supplied beam passes twice through the lens.