Abstract:
L'invention concerne un procédé de fabrication de surfaces optiques [12'], chacune supportée par une pièce élémentaire [12], et destinées à entrer dans la fabrication de plusieurs assemblages [22] de surfaces optiques [12'] par repositionnement des pièces élémentaires [12] après polissage, ces assemblages [22] étant chacun apte à réarranger un ou des faisceaux optiques. Le procédé de fabrication selon l'invention comprend au moins une étape de positionnement des pièces élémentaires [12] les unes par rapport aux autres et une étape de polissage d'une surface spatialement continue [10] sur l'ensemble des pièces élémentaires [12] positionnées, l'étape de polissage étant commune pour l'ensemble des pièces élémentaires [12] positionnées. Le procédé inclut en outre une étape préalable de préparation des pièces élémentaires [12] dans laquelle les pièces élémentaires [12] sont rendues telles qu'elles possèdent des propriétés géométriques destinées à leur positionnement pour l'étape de polissage et à leur repositionnement lors de la fabrication des assemblages [22].
Abstract:
Eine Vorrichtung (10) zur Messung einer Spektralverteilung eines mit einer Druckeinrichtung hergestellten Druckerzeugnisses (12) mit einem Leuchtmittel (20) zum Beleuchten des Druckerzeugnisses (12), einem optoelektronischen Messmittel (32) zum Messen des Remissionswertes eines Abschnitts des Spektrums des vom Druckerzeugnis (12) remittierten Lichtes (26), einem optischen Dispersionsmittel (28) zum Dispergieren der Wellenlängen des remittierten Lichtes (26) und einer für das Dispersionsmittel (28) maßgeblichen Lichteintrittsspaltebene, ist erfindungsgemäß dadurch gekennzeichnet, dass die für das Dispersionsmittel (28) maßgebliche Lichteintrittsspaltebene durch die Oberfläche des zu untersuchenden Druckerzeugnisses (12) geschaffen ist.
Abstract:
A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.
Abstract:
A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.
Abstract:
An instrument (10) including a scannable mirror (100, 110) employs multimode optical fibers (24, 32, 36, 42, 46, 52) and an optical coupler (40). Modal dispersion, e.g., from the multimode optical fiber (24, 32, 36, 42, 46, 52), is reduced by a method (200) employing deconvolution. The scannable mirror (100, 110, 44, 144) may employ a mirror (110) movable in an optical waveguide (104) or an optical fiber (42, 46) wound on an expandable core (124, 124a, 124b).
Abstract:
A spectroscopic system according to the present invention 10 comprises: an optical fiber bundle 12 whose emitting end 12a is arranged in a vertical direction; a slit 16 which is arranged so as to oppose the emitting end 12a of the optical fiber bundle 12; spectroscopic element arrangement means 20 which can switchably arrange either a first diffraction grating 23 in which grooves extending along the vertical direction are arranged in a horizontal direction at a predetermined groove density, or a second diffraction grating 24 in which grooves extending along the vertical direction are arranged in the horizontal direction at a groove density larger than that of the first diffraction grating 23, on an optical path of light which is emitted from the emitting end 12a of the optical fiber bundle 12 and passes through the slit 16; and a photomultiplier tube 30 in which a plurality of anodes 53 extending along the vertical direction are arranged in the horizontal direction.
Abstract:
The present invention concerns an LED spectrometer operating without moving parts, according to the sweep principle, and appropriate to serve as a structural component in many kinds of spectroscopic concentration analysers. The design of the invention affords the advantage that, even at its minimum, the optical power of the LED spectrometer of the invention is about fivefold compared with designs of prior art. Furthermore, improvement of the efficiency of the LED radiation source and of that of the optics has brought a multiple augmentation in power to the wavelength spectrum sent out by the radiation source. In the design of the invention, concentrators (6) of non-imaging type are used to collimate the wavelength spectrum emitted by the LEDs (3).
Abstract in simplified Chinese:本发明揭露一种光学量测系统,系用于对一待测物之光学特性进行量测,光学量测系统包含一待测物、一光检测模块、一导光模块以及一分析模块。本发明在光学量测系统中利用了该导光模块来从该待测物发出的光线中,接收轴向光线进行光学特性分析。故此,除可准确地量测待测物所发出光线的光强度以外,亦可同时取得待测物的轴向光线之光学特性。
Abstract in simplified Chinese:在本发明之测定探针(40)中,测定光,系借由分歧光学系(12)而被分歧为复数,各分歧光,系在透过作为滤色器之各干涉膜滤波器(13A、14A、15A)并借由各受光传感器(13B、14B、15B)而被受光时,透过成为略两侧远心系之各集光透镜群(13C、14C、15C)来射入至各干涉膜滤波器(13A、14A、15A)处。而,干涉膜滤波器(13A、14A、15A),系以因应相对于朝向该干涉膜滤波器(13A、14A、15A)之射入光的射入角度之强度分布的条件,来得到与测定参数相对应之透过率特性的方式,而被形成。故而,本发明之测定探针(40),系能够一面使用干涉膜滤波器(13A、14A、15A),一面将由于其之射入角度所导致的透过率特性之偏差的影响降低。