Optical system for measurements, and luminance colorimeter and colorimeter using same
An optical system and color measurement technology, applied in spectrometry/spectrophotometry/monochromator, using electric radiation detectors for color measurement, optical radiation measurement, etc., can solve the problem of high error sensitivity and reduce the transmittance The effect of the deviation of the rate characteristic
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Embodiment approach 1
[0062] Next, one embodiment will be described below. figure 1 It is a diagram showing the internal configuration (optical system for measurement) of the measurement probe 40 according to the first embodiment. Use the assay probe 40 as the Figure 21 The measuring detector of the color luminance meter shown in 4, Figure 22 Determination detector 4 of the colorimeter is shown. As an example of the measurement method, the same Figure 20 Similarly, the color luminance meter is disposed opposite to the display screen 3 of the liquid crystal display 2, and is configured to include a measurement probe 40 for measuring light from the display screen 3, and a measuring instrument main body for obtaining color luminance based on the output of the measurement probe 40. 5. In addition, as another example of a measurement method, a colorimeter is configured to include a measurement light irradiation unit that irradiates measurement light to an object to be measured, a measurement pro...
Embodiment approach 2
[0082] Figure 14 It is a diagram of the internal configuration (optical system for measurement) of the measurement probe 42 according to the second embodiment. In the assay detector 42, with the figure 1 The assay probe 40 shown is similar, and the same reference numerals are assigned to corresponding parts, and description thereof is omitted. In the measurement probe 42 of the present embodiment, as the second diffusion member, the colorimetric optical systems 132 , 142 , 152 are provided with single-filament fibers 13F, 14F, 15F instead of the second diffusion plates 13C, 14C of the first embodiment. , 15C.
[0083] Here, preferably, the optical fiber utilizes the refractive index difference between the core wire and the cladding to form an image Figure 15 As shown, the incident light is totally reflected to guide the light. However, in reality, it is caused by local differences in the refractive index (pulsation), local differences in fiber diameter (thickness, thinn...
Embodiment approach 3
[0090] Figure 19 It is a diagram showing the internal configuration (optical system for measurement) of the measurement probe 43 according to the third embodiment. For the assay detector 43, with the figure 1 The measurement probe 40 shown is similar, and corresponding parts are assigned the same reference numerals and descriptions thereof are omitted. In the measurement probe 43 of the present embodiment, the first diffusion plate 191 is formed in a dome shape covering the side of the second diffusion plates 13C, 14C, and 15C. As such, other structures may also be used in the first diffusion member.
[0091] Although this specification discloses the techniques of the above-mentioned various forms, the main techniques among them are mainly organized below.
[0092] An optical system for measurement according to one aspect is configured to include: a first diffusion member on which a light beam from an object to be measured is incident; A plurality of sets are arranged on...
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