JPS6271549U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention and a schematic configuration diagram showing the entire system of an automatic capsule visual inspection device, Fig. 2 is a transverse sectional view of this embodiment, and Figs. 3 and 4 are respectively Perspective views showing two examples of the cylindrical transmission type light diffusion member which is the main part of this embodiment, and FIGS. 5 and 6 are two examples of the cylindrical partial light shielding member which is the main part of this embodiment, respectively. Fig. 7a is a side view of the capsule body, Fig. 7b is a side view of the capsule cap, Fig. 7c
7d is a side view showing the state in which the capsule body and capsule cap are temporarily joined together before filling with the drug; FIG. 7d is a side view showing the state in which the capsule body and capsule cap are joined together after the drug is filled; 9 is a longitudinal cross-sectional view and a plan view showing an example of a "hangnail" defect in a capsule, FIG. 9 is a longitudinal cross-sectional view and a plan view showing another example of a "hangnail" defect in a capsule, FIGS. 10 and 11
The figure is a longitudinal cross-sectional view, a plan view, and a schematic configuration diagram showing the entire system of a capsule automatic visual inspection device of a conventional example. Description of symbols, 1: Annular light source, 2: Reflective member, 2
A: Circular transmission type light diffusion member, 3: Cylindrical transmission type light diffusion member, 4: Reflection type light diffusion member, 5: Partial light shielding member, 20: Capsule, 20B: Capsule body, 20C: Capsule cap.

Claims (1)

[Claims for Utility Model Registration] (1) A device for illuminating the surface of a capsule in order to observe it from a direction substantially normal to the surface of the cylindrical portion of the capsule, (a) disposed between the capsule and the observation device; (b) an annular light source whose center line is approximately a line connecting the annular light sources; (c) a light-transmitting cylindrical member having a light diffusing property and having a hollow portion so that the main direction of direct light to the capsule is substantially included in a plane including the capsule axis and the central axis of the annular light source; (d) a reflective member arranged to close an opening on the observation device side of a light-transmitting cylindrical member having light-diffusing properties, and having a reflective surface having light-diffusing properties on the capsule side and a hollow portion in the center; It is placed between an annular light source and a translucent cylindrical member with light diffusing properties, and mainly blocks the light from the annular light source from the direction perpendicular to the capsule axis, and blocks the light from the annular light source from the direction of the capsule axis. 1. A lighting device for automatic visual inspection, comprising: a partial light-shielding member provided in a light-transmitting cylindrical member having diffusive properties, which blocks light from the hollow portion side to a lesser extent. (2) In the utility model registration claim described in claim 1, the annular light source includes: an annular light emitting body; a cylindrical reflecting member installed outside the light emitting body; and a cylindrical reflecting member disposed below the light emitting body. 1. A lighting device for automatic visual inspection, comprising: a light-transmitting portion having a light-diffusing property in the form of a plate-shaped ring;