JPH026406Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is related to a telescope for observing the moon.
Its purpose is to be used as an astronomical object for lunar observation, allowing you to see the lunar surface using microfilm, and by rotating the lunar disk to see the phases of the moon, as well as allowing you to observe the actual moon through a telescope. The purpose is to donate a telescope.

Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings. In the figure, 1 is a telescope body consisting of a long objective lens barrel 2 and an eyepiece lens barrel 3 in which a sliding barrel portion 3a is fitted into the objective lens barrel. The objective lens barrel 2 into which the objective lens 4 is fitted is provided with a finder 5 and a standard protrusion 6 at the end of the barrel that fits into the hole 5a of the finder 5.

In addition, the eyepiece tube 3 into which the eyepiece lens 7 is fitted is divided into upper and lower half tubes 3a and 3b as shown in FIGS. 1 and 3.
As shown in the figure, it is bonded and bonded with adhesive, and has an elliptical enlarged diameter tube part 8, and this diameter enlarged tube part 8 has a hole 9 that passes through the lens in a direction perpendicular to the optical axis of the lens. , a disk shaft support 10 protruding outward (to the right side) of the enlarged diameter cylindrical portion 8, and a disk outer peripheral portion formed with a notch in a direction perpendicular to the lens optical axis at a position adjacent to the disk shaft support 10. A notch groove 11 for insertion is provided.

Reference numeral 12 denotes a lunar disk having a central protruding shaft 12a.
A is engaged with a hole in a disc shaft support 10 of the eyepiece barrel 3, and is pivotally supported as shown in FIG. The assembly of the lunar disc 12 to the eyepiece barrel 3 is as follows:
The disc center protruding shaft 12a is set so as to engage with the semicircular shaft support hole 10b of the lower half cylinder 3b as shown in FIG. This is done by adhesively joining the upper and lower half tubes 3a and 3b so that they are wrapped around each other.

The moon phase disc 12 has a moon phase display 13 as shown in FIG. 6 displayed on the front side, and moon-shaped holes 14a to 14j in which the shape of the moon changes sequentially according to the moon phase display.
A circular hole 16 corresponding to the arrow mark 15 is provided, and an engagement/disengagement groove 18 is provided on the outer circumferential surface to engage with the tip projection of the in-cylinder elastic piece 17 as shown in FIG. Reference numeral 20 denotes a microfilm frame fitted into the cylindrical through hole 9 so that it can be slid by hand.
a first frame hole 21 made of a circular hole that matches one of the circular holes 16 of 2; and a square second frame hole 24 into which a microfilm 23 on which a photograph 22 of the moon surface of a full moon is printed is fitted. is provided.

When the microfilm frame 20 is inserted until the stopper 25 at one end touches the outer surface of the elliptical cylinder section 8, the microfilm 23 on which the lunar surface photograph 22 has been printed is inserted into the eyepiece 7 as shown in FIG. Since they face each other, rotate the lunar phase disc 12 to align "15" on the lunar phase display 13 with the triangular protrusion 26 protruding from the elliptical cylinder part 8 as shown in Figure 5, and then turn the astronomical telescope brightly. When one looks at a white piece of paper or a wall, one can see a moon (full moon) with an age of 15, and the lunar surface of the full moon can be observed through a lunar surface photograph 22 printed on a microfilm 23. In addition, in this state, the lunar disc 12 is engaged and disengaged through the groove 18.
When the rotation of the moon-shaped holes 14a to 14j is sequentially rotated to the right by a certain angle regulated by , the waxing and waning of the moon can be seen in correspondence with the lunar surface photograph 22. Furthermore, when the arrow mark 15 of the lunar disc 12 is aligned with the triangular protrusion 26 and the microfilm frame 20 is switched so that its first frame hole 21 is aligned with the optical axis of the lens, 1 of the lunar disc 12 is aligned.
one circular hole 16 and the first one of the microfilm frame 20.
Since the frame holes 21 are aligned on the lens optical axis, the eyepiece tube 3 can be pulled out in this state, and pushed in while looking into the eyepiece to allow observation of the actual moon.

Since the astronomical telescope of this invention is as described above, it is possible to observe the state of the moon's surface using microfilm, and it is also possible to observe the phases of the moon by rotating the lunar disk, as well as to observe the actual moon. There is an effect that can be observed.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the astronomical telescope of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a right side view thereof, and Fig. 4 is a cross-sectional view taken along the - line in Fig. 1. , FIG. 5 is a sectional view taken along the - line in FIG. 4, and FIG. 6 is a front view of the lunar disk. DESCRIPTION OF SYMBOLS 1...Telescope body, 2...Objective lens barrel, 3...Eyepiece tube, 4...Objective lens, 7...Eyepiece lens, 9...Cylinder through hole, 10...Disc shaft support, 1
DESCRIPTION OF SYMBOLS 1...Notch groove, 12...Moon age disc, 13...Moon age display, 14a-14j...Moon-shaped hole, 15...Arrow display, 16...Perfect hole, 20...Microfilm frame, 21... ...First frame hole, 22...Moon surface photograph, 2
3...Microfilm.

Claims (1)

[Scope of utility model registration request] Expanded diameter tube portion 8 of the eyepiece tube 3 of the telescope body 1
, a hole 9 penetrating in a direction perpendicular to the lens optical axis, a disk shaft support 10 protruding outward from the enlarged diameter cylinder portion 8, and a hole adjacent to the disk shaft support 10 that extends along the lens optical axis. A lunar circle is provided with a cutout groove 11 for fitting into the outer periphery of the disk in a direction orthogonal to the disk, and has a predetermined number of moon-shaped holes 14a to 14j in which the shape of the moon changes sequentially in the disk shaft support 10. The plate 12 is pivotally supported by the hole engagement of the central protruding shaft 12a so that the plate 12 rotates with its outer circumferential part partially fitted into the notch 11, and also matches one of the circular holes 16 of the lunar disk 12. A microfilm frame 20 having a first frame hole 21 and a second frame hole 24 into which a microfilm 23 on which a lunar photograph 22 of a full moon is printed is inserted.
An astronomical telescope for moon observation, which is fitted into the cylindrical part through hole 9 so as to be slidable and switchable by hand.