Abstract:
A spectral imaging system for collecting spectral information of a two dimensional heterogeneous objects while in motion relative to the imaging system without the use of a spectrograph, filters or any dispersive optics. The system includes a pulsed light source tunable in wavelength for producing short pulses of wavelength tuned light at a plurality of selected narrow band wavelengths within a spectral range and one or more optical components for conveying or directing the short pulses of light to a two dimensional region that is substantially stationary with respect to the imaging system and through which the two dimensional target is moving. The system also includes a many pixel camera synchronized with the tunable pulsed light source. The camera is adapted to detect light in the selected narrow band wavelengths produced by the tunable pulsed light source and reflected from or transmitted through the two dimensional target in motion relative to the imaging system and to provide image frame information with each frame at a defined wavelength band. A processor processes information from said tunable light source and said camera and to produce multi-spectral images of the target.
Abstract:
Disclosed herein is a spectroscopic probe comprising at least one whispering gallery mode optical resonator disposed on a support, the whispering gallery mode optical resonator comprising a continuous outer surface having a cross section comprising a first diameter and a second diameter, wherein the first diameter is greater than the second diameter. A method of measuring a Raman spectrum and an Infra-red spectrum of an analyte using the spectroscopic probe is also disclosed.
Abstract:
A distance detection induction device 100 comprises a housing 1, a condensing lens 2, a circuit board 3 having multiple electronic components, an infrared light emitting means 4, a light receiving means 5 for receiving and sensing the reflected infrared light. The housing 1 comprises a main body 10 and two round openings 11 and 12 on the top of the main body 10. The condensing lens 2 has an emitting lens 21 and a receiving lens 22 respectively located at the two round openings 11 and 12. The circuit board 3 bearing multiple electronic components for processing signal is mounted inside the main body 10. The infrared light emitting means 4 is to be infrared light-emitting diodes, emitting the infrared light to the emitting lens 21. The infrared light receiving means 5 is to be distance detecting sensing module, sensing the reflected light focused by the receiving lens 22. A connection part 23 having at least a bending part is set between the emitting lens 21 and the receiving lens 22. The distance detection induction device of the present invention has higher positioning precision and can enhance the induction performance of the whole device.
Abstract:
A spectrometer measuring head has a pivotally mounted mirror (1) and at least one source of optical radiation (2) or a device for uncoupling optical radiation are arranged in a housing (6) in such a manner that the optical radiation is incident, by orientating the mirror either on a reference body (3) in the housing or on the substance (14) that is to be analyzed via a window (7) of the housing. The mirror is mechanically coupled to a drive (4) or to a flexing resonator in the housing.
Abstract:
A multi-wavelength band imaging system including a beam splitter is provided, allowing image capturing means adapted to specific wavelength bands to be used such as from visible to near infrared, intermediate infrared and far infrared. The system may have a field of view of substantially (360) degrees about an optical axis of the system and may fit into a golf ball sized housing. The imaging system includes a first convex mirror and a second concave mirror. Some embodiments for imaging single or close wavelength bands and not requiring a beam splitter are equally provided. Also provided is a self-righting housing for an imaging system, for example as described above, which self-rights under the action of gravity, thereby disposing the imaging system in an appropriate orientation.
Abstract:
The present invention relates to a method of identifying types of body fluids in a sample. This method involves providing a sample potentially containing one or more types of body fluids. The sample is subjected to Raman spectroscopy to produce a Raman spectroscopic signature for the sample. The Raman spectroscopy signature is identified to ascertain the types of body fluids in the sample. A method of establishing a reference Raman spectroscopic signature for specific types of body fluids is also disclosed as is a library of such reference signatures is also disclosed.
Abstract:
Provided are atomic force microscope probes, methods for making probes for use in atomic force microscopes and systems using such probes. The probes include at least a body portion and a cantilever portion. The cantilever portion may include a first surface and a second surface opposite the first surface. The cantilever portion further includes a first material arranged on the first surface, such that the cantilever portion twists about a center axis of the cantilever portion when the cantilever portion is heated. The first material may be arranged symmetrically or non-symmetrically on a portion of the first surface, or it may be arranged non-uniformly over the first surface. The cantilever portion of the probe may also include a second material arranged on the second surface of the cantilever portion. The first and second materials have a different thermal expansion than the material forming the cantilever portion.
Abstract:
An optical detection apparatus used for detecting a tissue includes a light-emitting unit, a spectroscopic unit and a light-sensing array. The light-emitting unit emits light entering into the tissue. The spectroscopic unit receives the light outputted from the tissue and divides the received light into a plurality of rays with different wavelengths. The light-sensing array senses the rays outputted from the spectroscopic unit so as to generate an array spectrum. By the spectroscopic unit, the detection of the rays of multiple wavelengths can be performed without using plural light-emitting diodes for emitting light of different wavelengths. Besides, the user can perceive the detection result (e.g. the location of the abnormal tissue) intuitively by integrating the light-sensing array and the spectroscopic unit.
Abstract:
A proximity sensor for use in a portable computing device is described. In particular various embodiments of a proximity sensor which fit in an extremely small portion of a cellular phone, and accurately determine the presence of a user's head in close proximity to a surface of the cellular phone.
Abstract:
The multi-micro hollow cathode light source has a cathode plate, an insulation plate, an anode plate, and metal pieces. The insulation plate is sandwiched by the cathode plate and the anode plate. The cathode plate is made of copper. The centers of the cathode plate, insulation plate, and anode plate, are provided with holes, respectively. The holes form a penetrating though-hole. Linear slots are disposed in the cathode plate continuously extending from the hole in a cross shape. Each slot penetrates the cathode plate. Four metal pieces made of materials different from one another are inserted and buried in the four slots.