Abstract:
An optical measuring system has a first optical measuring instrument and a second optical measuring instrument. The optical measuring system includes a first optical path to guide a first beam from a measuring region to the first optical measuring instrument, a second optical path to guide a second beam from the measuring region to the second optical measuring instrument, an optical system through which the first and second optical paths extend and in which the first and second optical paths are paraxial, a reflection area to change the direction of the first optical path, the second optical path crossing the reflection area, and a light transmission area arranged at a position where the reflection area and second optical path cross each other, the light transmission area having a higher light transmittance than the reflection area.
Abstract:
In a confocal laser scanning microscope with an illuminating configuration (2), which provides an illuminating beam for illuminating a specimen region (23), with a scanning configuration (3, 4), which guides the illuminating beam over the specimen while scanning, and with a detector configuration (5), which via the scanning configuration (3, 4) images the illuminated specimen region (23) by means of a confocal aperture (26) on to at least one detector unit (28), it is provided that the illuminating configuration (2) of the scanning configuration (3, 4) provides a line-shaped illuminating beam, that the scanning configuration (3, 4) guides the line-shaped illuminating beam over the specimen f while scanning and that the confocal aperture is designed as a slit aperture (26) or as a slit-shaped region (28, 48) of the detector unit (28) acting as a confocal aperture.
Abstract:
A dental color measurement tool disposed opposite an opening portion for capturing light from an artificial tooth to undergo color measurement with a color measurement device includes at least one pair of guide posts having an engaging portion corresponding to an engaging portion on the color measurement device side, and an abutment post disposed between the pair of guide posts and having a pointed convex shape to which the artificial tooth can be mounted. The abutment post has a color measurement reference surface in a color measurement light axis direction as the vicinity of a focus position of the color measurement device in a photographing state. When performing color measurement photographing, the artificial tooth is mounted to the abutment post to position the front thereof at the color measurement reference surface. Thus, the artificial tooth can be stably retained at a suitable position with respect to the color measurement device.
Abstract:
A remote sensor for detection of the initiation of combustion includes a broad-band sensor, associated signal processing and an interface to the user. The sensor uses the signature formed by the temporal evolution of the spectral emission intrinsic to combustion as a fingerprint for detecting the combustion. The sensor can autonomously monitor a scene and issue an alert as warranted.
Abstract:
A dispersive filter includes two dispersion systems with an intermediate slit between them. The two dispersion systems have similar but mirror image dispersion characteristics at the plane of the intermediate slit and are configured so that the entrance port of the dispersive filter is polychromatically imaged on the exit port. The intermediate slit passes blocks selected wavelengths and transmits the remaining dispersed wavelengths from the first dispersion system to the second dispersion system. The second dispersion system combines the dispersed beam that passes through the intermediate slit to form an output beam, which is focused on the exit port. In this manner, the radiance of the input radiation is preserved ignoring losses caused by the optical elements and the blocked wavelengths.
Abstract:
An optical spectroscopy tool is provided. In one embodiment a highly efficient means by which moderate resolution spectroscopy may be performed in the vacuum ultraviolet (VUV) is described. In one embodiment the techniques can be used as a high throughput spectrometer to spatially disperse wavelengths in and around the VUV in such a manner as to generate a substantially flat field focal plane, suitable for use in combination with an array detector. Some embodiments utilize prism based spectrometers. Some embodiments utilize detector elements that may be movable and/or located within the spectrometer. In some embodiments, collimated light may be provided as an input to the spectrometer.
Abstract:
A light receiving optical system includes: a relay optical system for converging light to be measured which has been converged on an image plane of an objective optical system on a view angle defining aperture for incidence through the view angle defining aperture. The light receiving optical system has the relay optical system with a relay lens operable to be selectively switched between a first and a second conjugated positions, and a first and a second light flux limiting aperture members disposed in proximity to the relay lens in the case where the relay lens is selectively switched between the first and the second conjugated positions. The relay optical system selectively forms, on the image plane of the objective optical system, an enlarged image and a reduced image of the view angle defining aperture in the case where the relay lens is selectively switched between the first and the second conjugated positions to define an incident light flux through the view angle defining aperture by a first and a second light flux limiting apertures, respectively, in the case where the relay lens is selectively switched between the first and the second conjugated positions. A spectrophotometer has the light receiving optical system.
Abstract:
In a spectrometer, preferably in a spectrometric microscope, light from a specimen is collected at a collector objective element and delivered to a camera element, which in turn provides the light to a photosensitive detector. A focal plane is provided between the collector objective element and the camera element, and one or more aperture arrays may be situated in the focal plane to restrict the detector's field of view of the specimen to the areas within the apertures. By utilizing aperture arrays with apertures of different sizes and shapes, the spatial resolution of the spectrometer readings may be varied without the need to vary the optics of the spectrometer. As a result, if the optics are optimized to minimize vignetting, spatial resolution may be varied without adverse increases in vignetting.