JPS581793Y2 - Light catadioptric experiment equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a light catadioptric experiment device that uses a reflecting mirror and a prism to perform light reflection and refraction experiments inside a mirror box. An arbitrary optical system is created by combining the reflecting mirror surface of the box with a prism and a reflecting mirror that are inserted into arbitrary fitting holes in the bottom wall of the box, and this optical system allows the light beam incident from the slit hole of the light entrance part of the box to be detected. To provide an experimental tool for teaching materials, which allows observing the state of reflection and refraction of light by refracting it and reflecting it in various directions.

An embodiment of this invention will be described below with reference to the drawings. In the drawing, 1 is a mirror box with an open top, and a light entrance part 3 is provided at one end with a slit hole 2 through which illumination light S enters the box. In addition, a reflective mirror surface 4a is provided on the inner surface of the side end plate 4 facing the light incident portion and on the inner surface of the both side plates 5 and 6 perpendicular to the side end plate 4, respectively.

5a and 6a are formed by pasting reflective sheets, and two fitting holes 8 into which the prism 10 is inserted into the top-shaped bottom wall 7, and a large number of fitting holes into which the reflecting mirror 11 is inserted. 9 are arranged vertically and horizontally and bored as shown in FIGS. 1 and 2.

Note that the slit hole 2 of the box light entrance section 3 is the light entrance window 3a.
Although it is provided in the light shielding plate 12 inserted from above into the rail grooves 3b, 3b on both sides of the box, it can also be provided directly in the rising plate part of the box light receiving part 3 by making a vertical slit.

Further, the prism fitting hole 8 is made to have a larger diameter than the reflecting mirror fitting hole 9, so that the incident band light S from the slit hole 2 is
Although there are two holes spaced apart from each other in the rectilinear direction of the reflector, they may be formed to have the same size as the fitting hole 9 for the reflecting mirror so that they can be used as a common fitting hole for both.

Furthermore, in the case of this embodiment, the side end plate 4 and both side plates 5 and 6 are composed of three lens frames that are combined into a U-shape in plan and are fitted into the bottom surrounding groove of the box. It can also be formed integrally as a circumferential side wall.

The prism 10 is a right-angled triangular member that refracts the incident beam S' within the plane of the box bottom wall 7 as shown in FIG. An insertion protrusion 10a to be inserted is provided.

The reflecting mirror 11 is made up of a mirror frame 11a with a knob formed at approximately the same height as the box side plates 4 to 6, and a reflective sheet 11b attached to the front surface of the mirror frame.
A cut-shaped insertion protrusion 11c is provided at the lower end of a to be rotatably and removably inserted into the fitting hole 9.

Although two reflecting mirrors 11 are prepared in this embodiment, the number is not limited.

Then, by inserting the prism 10 and the reflecting mirror 11 into arbitrary fitting holes 8 and 9 in the bottom wall T of the box, and setting their orientation in an appropriate direction so that the incident beam S' is refracted and reflected. ,
By combining the prism 10, the reflecting mirror 11, and the reflecting mirror surfaces 4a to 6a in the mirror box 1, it is possible to create an arbitrary optical system, such as the optical system shown in FIG. By refracting the incident band ray S' or reflecting it in various directions, it is possible to observe the state and conduct various experiments on light incidence, refraction, etc.

Furthermore, if you use the experiment card A shown in Figure 3 by placing it on the bottom wall 7 of the box, you can easily carry out the experiment illustrated on this card. 7 and use it to play the various games listed on this card.

Note that the symbols al, a2. in FIGS. 3 and 4 are bl.

bl indicates a projection insertion hole of the reflecting mirrors 11, 11.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a light catadioptric experiment device according to an embodiment of this invention, Fig. 2 is a cross-sectional plan view thereof, and Figs. 3 and 4 are optical experiment cards attached to this device. FIG. 3 is a plan view showing a game card. 1...Mirror box, 2...Slit hole, 3...
・Light entrance part, 4... Side end plate, 5, 6... Both side plates, 4a
t5a. 6a... Reflective mirror surface, 7... Box bottom wall, 8, 9...
... Fitting hole, 10... Prism, 10a... Insert projection, 11... Reflector, 11c... Insert projection, S...
- Illumination light, S'...incident band ray.

Claims (1)

[Scope of utility model registration request] A light entrance part with a slit hole through which illumination light enters the box is provided at one end, and a light entrance part is provided on the inner surface of the side end plate facing the light entrance part and on the inner surface of both sides plates perpendicular to the side end plate. A mirror box with an open top surface that forms a reflective mirror surface and has a large number of fitting holes in the bottom wall aligned vertically and horizontally; A light catadioptric experiment device comprising a prism and a reflecting mirror having an insertion protrusion that can be removably fitted.