JPH01126552U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a plan view of another embodiment of the present invention, and FIG. 3 is a plan view of a conventional example. I... Integrating sphere, S... Sample, M1, M2, M3... Mirror, R... Reflectance measuring device, 1... Light source spectrometer, 2,
3... Integrating sphere mounting seat, 4, 5... Mirror mounting seat, 6... Sample mounting seat, 10... Optical fiber.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) First and second photometric means mounting seats on which photometric means are attached, one photometric means that is detachably attached to these mounting seats, and a photometric means that corresponds to each of the above two photometric means mounting seats. It has first and second mirror mounting seats provided as a mirror mounting seat, one mirror that can be attached to and detached from these mirror mounting seats, one fixed mirror, and a sample mounting seat, and a sample mounted on the sample mounting seat. The two photometer mounting seats and the mirror mounting seat are in a symmetrical positional relationship with respect to the surface of The light is incident on the photometric means attached to the seat, and the light is sequentially reflected by the fixed mirror, the sample, and the mirror attached to the second mirror mounting seat, and is incident on the photometric means attached to the second photometer mounting seat. This is an absolute reflectance measuring device that can take two states. (2) An optical fiber that guides light from a light source, first and second optical fiber light emitting end positioning means that fix the light emitting end of this optical fiber, and a sample provided between these two positioning means. It has a mounting seat and a photometric means installed at a position to receive the reflected light from the surface of the sample attached to the sample mounting seat, and the optical fiber light emitting end is fixed by the first positioning means without installing the sample. In this case, the light emitted from the optical fiber directly enters the photometric means, and when the light emitting end of the optical fiber is fixed to the second positioning means and the sample is set, the light emitted from the optical fiber is reflected by the sample surface. An absolute reflectance measuring device adapted to be incident on the photometric means.