Abstract:
The present invention relates to a coffee colorimeter. More particularly, according to the present invention, the chromaticity of coffee which reflects grain sizes of crushed coffee grains can be precisely measured by receiving a color signal obtained by detecting light reflected on surfaces of the coffee grains with a color sensor, and a grain size signal obtained by measuring grain sizes of the coffee grains with a grain size analyzer and calculating the colors of the coffee grains into values with a grain size processor. In addition, a user can easily recognize a chromatic state of the coffee grains by displaying the color measurement values of the coffee grains which reflect the grain sizes of the coffee grains, received from the color and grain size processor, on a value display unit with numbers.
Abstract:
PURPOSE: A optical system for simultaneous detecting calibration system and test signal in optical spectrum analyzer are provided to supply a concurrent calibration signal and detect a test signal in an optical spectrum analyzer that is useful in analyzing optical telecommunications transmission lines. CONSTITUTION: The optical system(10) has a collimating optic(12), an optical axis(14), and a focal plane(16). A fiber array(18) has first and second pairs of optical fibers(22,24) with each optical fiber pair having an input optical fiber(26,28) and an output optical fiber(30,32). The input optical fiber(26) of the first pair of fibers(22) is coupled to receive the optical signal under test(34). The output optical fiber(30) of the pair is coupled to test signal detector(36). The input optical fiber(28) of the second pair of fibers(24) is connected to an optical calibration source(38) that produces a spectral output in response to shifts in emission or absorption energy levels in atomic or molecular species. The output optic fiber(32) of the pair is coupled to a calibration source detector(40). An optical tuning element drive motor(44) is connected to the optical tuning element(42) to tune the optical system(10) through the spectral range.
Abstract:
The present invention relates to an apparatus and a method for analyzing a mixed solution in real time in semiconductor and LCD processes using a multi-channel spectrometer. The apparatus according to the present invention comprises: a solution tank for providing a mixed process solution containing various chemicals which are melted in a process solution; a halogen lamp for injecting a light source into a flow cell using one optical fiber and injecting a light source into a photodiode using another optical fiber; an optical path unit of the light source for guiding the light to the flow cell through a first lens in order to convey the light, which is injected by the halogen lamp through the optical fiber, to the flow cell; an optical path unit of a multi-channel spectrometer for collecting the light, which has passed through the flow cell, by a second lens in order to input the light into the multi-channel spectrometer and inputting the light into the multi-channel spectrometer; a calibration curve which is created by using the absorbance of a standard substance and a given density for each wavelength band after measuring, by the multi-channel spectrometer, the absorbance of the standard substance which is melted in a process solution and whose density is known; and a computer in which designated software for analyzing the mixed process solution is installed which manages a density of each substance by measuring a sample whose chemical density is unknown using the multi-channel spectrometer and analyzing the density of the chemical in the sample using the calibration curve which is previously created. [Reference numerals] (20) Halogen lamp;(AA) Semiconductor, LCD process
Abstract:
A method for estimating the optical thickness and effective particle radius of cloud is provided to obtain broad information about the atmosphere and weather by merely using 0.6 microchannel and 3.7 microchannel in a satellite capable of measuring cloud radiation luminance. A method for estimating the optical thickness and effective particle radius of cloud comprises the steps of: estimating the ground surface reflective radiances in 0.6 micrometer channel and that in 3.7 micrometer channel by calculating the ground surface reflective radiance in an i channel according to the following formula 3, after obtaining an angle parameter and ground surface albedo by using a reference table including angle parameters for various tau_c(0-64) and gamma_e(0-32 micrometers) and radiances corresponding thereto and prepared based on Ag=0 and 1 where any thermal effect is excluded; estimating the cloud and ground surface heat radiance in 3.7 micrometer channel by using the following formula 4; estimating decoupled radiances for a wavelength of 0.6 and 3.7 micrometer by using the following formulae 1 and 2; and carrying out dependent estimation for the optical thickness and effective particle radius of cloud from the interrelation between the decoupled radiance for 0.6 micrometer and the decoupled radiance for 3.7 micrometers.
Abstract:
An apparatus (300') and method capable of providing spatially multiplexed IR spectral information simultaneously in real-time for multiple samples or multiple spatial areas of one sample using IR absorption phenomena requires no moving parts or Fourier Transform during operation, and self-compensates for background spectra and degradation of component performance over time. IR spectral information and chemical analysis of the samples is determined by using one or more IR sources (310, 311), one or more sampling accessories (330, 331) for positioning the sample volumes, one or more optically dispersive elements (350), a focal plane array (FPA) (370) arranged to detect the dispersed light beams, and a processor (380) and display (390) to control the FPA (370), and display(390) to control the FPA (370) and display IR spectrograph.
Abstract in simplified Chinese:一种光学设备包括:一影像形成光学系统,其形成来自一对象之光之一影像;一成像单元,其接收借由该影像形成光学系统形成之该影像之光;一反射分光设备,其覆盖该成像单元之一成像区域中之一给定区域;及一光谱侦测单元,其侦测借由该反射分光设备反射之光的一分光光谱。
Abstract in simplified Chinese:相关于本发明的测色计(21),具备:复数之探针部(P)、控制复数探针部(P)的测定动作同时复数之探针部(P)系被构成为可装拆的本体部(22),这些复数探针部(P)包含分光型的探针部(Pn)及刺激値直接读取型的探针部(P1-Pn-1)。亦即,如此般构成的测色计(21),可以根据分光型探针部(Pn)的测定结果而容易校正刺激値直接读取型的探针部(P1-Pn-1),借由本体部(22)的控制,可以因应于测定对象物,而使刺激値直接读取型的探针部(P1-Pn-1)与分光型的探针部(Pn)选择性地或是同时进行测定的运行。