JPH026407Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a telescope as a teaching material.The purpose of this invention is to switch the connection direction of the eyepiece lens tube and objective lens tube to the mirror housing between series connection and right angle connection, so that the object to be observed can be moved up and down. To provide a telescope with a novel configuration that does not exist in the past and has a high optical learning effect, which can be used like an astronomical telescope that can see an object as an inverted image, and can be used as a telescope that can see an object as an erect image that is left and right reversed. There is a particular thing.

Below, an embodiment of this invention will be described with reference to the drawings. This telescope consists of an eyepiece tube 3 incorporating a convex lens 1 and a concave lens 2, an objective lens tube 5 incorporating a convex lens 4, and an eyepiece tube 3 at the center of both ends. Series connection ports 6 and 7 are provided to connect the objective lens barrel 5 and the objective lens barrel 5 so that the lens optical axes are linearly aligned, and the lens barrel 3 and 5 are connected to the lens by being located between the series connection ports 6 and 7 on the outer periphery. A mirror housing 10 provided with right-angled connection ports 8 and 9 that connect the series connection ports 6 and 7 so that their optical axes are perpendicular to each other at positions below and beside the axes, and a right-angle connection port 8 within the mirror housing 10. .
are a pair of left and right halves 10a having a circular bowl shape,
10b are fitted together as shown in FIG.

1 and 2 show a usage state in which the eyepiece lens barrel 3 and objective lens barrel 5 are inserted and connected in series to the connection ports 6 and 7 at both ends of the mirror housing 10, and in this usage state, they are lined up in a straight line. The combination of the convex eyepiece lens 1, the concave lens 2, and the convex objective lens 4 allows it to be used like an astronomical telescope in which the object to be observed is viewed as an inverted image upside down.

FIG. 3 shows the eyepiece lens tube 3 and the objective lens tube 5.
is inserted and connected at right angles to the outer peripheral connection ports 8 and 9 of the mirror housing 10. In this usage state, the combination of the eyepiece convex lens 1, concave lens 2, reflector 11, and objective convex lens 4 arranged on the perpendicular axis , it can be used as a telescope that allows the object to be observed to be seen as an erect image with the right and left sides reversed.

Since the telescope of this invention has the above-mentioned configuration, by switching the connection direction of the eyepiece lens barrel 3 and objective lens barrel 5 to the mirror housing 10 between series connection and right-angled connection, the object to be observed can be turned upside down. It has the effect of being able to be used like an astronomical telescope that can be seen as an inverted image, and as a telescope that can see the object being observed as an erect image with the left and right sides reversed.It provides a telescope that has a novel configuration that has not existed before and has a high optical learning effect. can do.

[Brief explanation of drawings]

Figure 1 is a central vertical cross-sectional view showing the telescope of this invention with lens barrels connected in series, Figure 2 is a front view of the telescope in use, and Figure 3 is a cross-sectional view of the telescope with lens barrels connected at right angles. It is a diagram. 1... Convex lens, 2... Concave lens, 3... Eyepiece tube, 4... Convex lens, 5... Objective lens tube, 6, 7... Lens tube series connection port, 8, 9...
Lens tube right angle connection port, 10...Mirror housing, 11...
Reflector.

Claims (1)

[Scope of utility model registration request] An eyepiece tube 3 incorporating a convex lens 1 and a concave lens 2, and an objective lens tube 5 incorporating a convex lens 4.
In addition, series connection ports 6 and 7 are provided at the center of both ends to connect the eyepiece lens barrel 3 and objective lens barrel 5 so that the lens optical axes are linearly aligned, and between the series connection ports 6 and 7 is provided on the outer periphery. Right-angled connection ports 8 and 9 are located and connect the lens barrels 3 and 5 so that the lens optical axes are orthogonal to each other at positions below and lateral to the axes of the series connection ports 6 and 7.
A mirror housing 10 provided with
It is equipped with a reflecting mirror 11 fixed at an inclination angle θ of 45 degrees, and the eyepiece lens barrel 3 and objective lens barrel 5 are fitted into the series connection ports 6 and 7 of the mirror housing 10, and the eyepiece A telescope characterized in that the lens barrel 3 and the objective lens barrel 5 can be switched between a usage mode in which the lens barrel 3 and the objective lens barrel 5 are fitted into right-angled connection ports 8 and 9 of a mirror housing 10.