JP5463370B2 - Astronomical adjustment tool - Google Patents

Description

  The present invention relates to an adjustment tool that can be attached to and detached from the equatorial mount, etc., in order to facilitate the setting of the equatorial mount used for astronomical photography and the like.

  Today, when using a telescope or camera for astronomical observation, the field of view of the camera or telescope is fixed by attaching the equator to a tripod and fixing the telescope or camera, and rotating the telescope or camera around the polar axis at a slow speed by a motor. Observations are being carried out while moving the objects according to the operation of the celestial bodies.

  This astronomical observation is often performed outdoors, and various simple equator meanings that are easy to carry outdoors and can be easily attached to a tripod have been proposed (for example, Patent Document 1), and Has been put to practical use.

  Such a simple equator is generally fixed to a tripod, and then adjusted so that the rotation axis of the rotating part that rotates the camera or the telescope matches the polar axis.

  And in regions located in the northern hemisphere such as Japan, the polar star is often used to adjust this polar axis. To find the north polar star in the sky, check the north direction with a magnet and check the latitude of the observation point in advance. It is done to know the altitude of the North Star, and the position of the North Star is confirmed and the direction of the rotation axis of the rotating part in the equatorial sense is adjusted to the direction of the North Star.

  In the Southern Hemisphere, there is no star that serves as a reference for the polar axis. Therefore, the polar axis is determined only by the latitude (altitude) and orientation of the measurement point. Pay attention to the determination of the collimation altitude and the orientation of the polar axis. Is set.

  In addition, for equipment that has a base and requires the base to be fixed horizontally on a tripod, the level is provided on a part of the base, and the base for the equatorial Some are easy to set horizontally.

JP 2002-287216 A

  Although the simple equator is relatively convenient for carrying, it is used for observation of the northern hemisphere because the rotating plate is rotated at a very low speed around the polar axis with a camera fixed to the rotating part as a plane perpendicular to the polar axis. At this point, the polar axis is set by identifying the North Star, but it may be difficult for beginners who are unfamiliar with astronomical observation to determine the position of the polar star as the reference of the polar axis. It sometimes took time.

  The present invention provides an auxiliary adjustment tool that can eliminate such drawbacks and can easily perform various types of simple equator setting adjustments.

  An astronomical adjustment tool according to the present invention includes a measuring unit including a reference unit in which a compass and a spirit level are arranged side by side, and a rotation fixing unit having a rotation axis parallel to the upper surface of the reference unit, and the rotation fixing. A base body having a main body having a confirmation window for pivotally supporting the part and exposing a part of a side surface of the rotation fixing part, and a mounting part having a bottom surface parallel to the rotation axis of the rotation fixing part; The angle scale is formed on the side surface of the rotation fixing portion, and the angle scale is visible from the confirmation window.

  The check window has an index, and the angle scale has a reference point of the angle scale located on the check window index when the upper surface of the reference portion and the bottom surface of the mounting portion are parallel, and the measurement portion is a base The angle at which two planes of the plane formed by the upper surface of the measurement unit and the plane formed by the bottom surface of the attachment portion intersect with each other is displayed on an angle scale located at the position of the index.

  The cover glass covering the azimuth magnet in the vicinity of the azimuth magnet passes through the center of the attachment portion and the reference portion and is a plane perpendicular to the rotation axis, and indicates an indicator of the plane direction passing through the center of the azimuth magnet. Is going to be established.

  The astronomical adjustment tool according to the present invention is such that a reference portion in which a compass and a spirit level are arranged can be turned to a reference portion provided with a mounting portion, so that it is small and light and can be easily carried. In addition, it is possible to easily set or confirm the direction such as the azimuth and elevation angle of the camera or pan head device by fixing it to the camera or pan head with the mounting portion and easily mounting it on the camera or pan head device. it can.

  Then, the level of the upper surface of the measuring unit can be made horizontal by the level, and the bottom surface of the mounting portion can be set to a predetermined angle from the horizontal by the angle scale of the checking window. You can easily read the tilt from the horizontal or set the tilt.

  Furthermore, by providing an azimuth magnet in combination with a level, the measurement unit, that is, the astronomical adjustment tool can be oriented to the north with the upper surface of the measurement unit being horizontal, and a protrusion as an index in the vicinity of the azimuth magnet, or By providing an index line as an index on the cover glass, it is possible to easily know the orientation of the central axis of this astronomical adjustment tool such as a measuring unit.

The external appearance perspective view of the adjustment tool for astronomical observations concerning this invention. The side view of the adjustment tool for astronomical observations concerning this invention. The disassembled perspective view of the adjustment tool for astronomical observations concerning this invention. The figure which shows the usage example of the adjustment tool for astronomical observations concerning this invention. The figure which shows the fixed spacer used for the adjustment tool for astronomical observations concerning this invention.

  The astronomical adjustment tool according to the present invention is an auxiliary tool that is attached to an astronomical observation head or the like and is used for adjusting and setting a predetermined plane to be orthogonal to the polar axis. FIG. FIG. 2 is a side view showing the reverse side of FIG. 1.

  As shown in FIGS. 1 and 2, the astronomical adjustment tool 10 includes a base body portion 41 provided with a mounting portion 45 that protrudes downward on the outer periphery of the thick disc-shaped main body portion 43, and the main body portion. A measuring unit provided with a reference part 23 which is rotatable with respect to the base part 41 within a predetermined range by a rotation fixing part 27 having the center of 43 as a rotation center and is arranged above the main body part 43 in the drawing. And an astronomical adjustment tool 10 having 21.

  As shown in FIG. 3, the measurement unit 21 has a disk-shaped rotation fixing unit 27 below, and a shaft hole 29 is provided at the center of the rotation fixing unit 27. Has a scale portion 39 in which a thin line drawn radially from the center of the shaft hole 29 and having a central angle of 1 degree is formed into a fan having a central angle of about 160 to 180 degrees. The scale portion 39 and the reference portion 23 projecting from the periphery of the rotation fixing portion 27 at a substantially target position are provided.

  The reference portion 23 is configured such that a disc magnet 33 as a azimuth magnet is rotatably attached to the upper surface 25 and a level 31 is mounted side by side with the disc magnet 33. This makes it easy to check whether 25 is horizontal.

  The disk magnet 33 is attached to the reference portion 23 so as to be rotatable in a plane parallel to the upper surface 25 and is covered with a cover glass 35. The surface of the disk magnet 33 has “N” and “S”. Orientation symbols “E” and “W” are displayed at intervals of 90 degrees, and a scale with a central angle of 1 degree from the center of the disk magnet 33 is displayed near the periphery of the surface.

  Further, the cover glass 35 is a plane parallel to the side surface of the rotation fixing part 27, and the center of the reference part 23 and the base part 41 passing through the center of the disc magnet 33 which is an azimuth magnet and the center of the level 31. An index line 37 is drawn, which indicates the position direction of a plane that passes through the center of the rotation and is orthogonal to the rotation center axis of the rotation fixing portion 27.

  The index indicating the direction of the plane passing through the center of the reference portion 23 and the like is not limited to the index line 37 drawn on the cover glass 35, and the upper surface of the reference portion 23 in the vicinity of the disc magnet 33 that is a compass magnet. By providing the projections 38 at appropriate positions of 25, the orientation may be used.

  As shown in FIG. 1, the base portion 41 includes a thick disk-shaped main body portion 43 that can accommodate the rotation fixing portion 27 in the measurement portion 21, and a flat plate-like attachment is provided below the main body portion 43. As shown in FIG. 3, the base portion 41 is composed of a right member 61 and a left member 65, and the right member 61 and the left member 65 are substantially targeted. Yes, when the right member 61 and the left member 65 are aligned with each other by projecting inward a predetermined range below the periphery of each main body 43 of the right member 61 and the left member 65, the rotation fixing portion 27 is centered on the mating surface. It is assumed that a storage gap can be formed so as to hold the battery.

  Further, a fan-shaped confirmation window 51 that communicates from the inside to the outside of the main body 43 is formed in the vicinity of the peripheral edge of the main body 43 in the right member 61, and a part of the confirmation window 51 includes an inner side of the confirmation window 51. An indicator protrusion 53 that slightly protrudes is formed.

  Further, a female screw (not shown) is formed in the center of the main body 43 of the right member 61, and a screw 75, which is a male screw of the fixing knob 71, is screwed into the main body 43 of the left member 65. Is provided with a knob mounting hole 55 through which the threaded portion 75 passes.

  The fixed knob 71 has a screw portion 75 that is a male screw having a smaller diameter than the knob portion 73 from one end of the columnar knob portion 73, and the male screw passes through the knob mounting hole 55 of the left member 65. The peripheral surface of the knob mounting hole 55 can be pressed by the end face of the knob portion 73.

  The screw portion 75 of the fixing knob 71 serving as the rotation axis of the rotation fixing portion 27 is attached to the main body portion 43 so as to be parallel to the upper surface 25 of the reference portion 23.

  Further, the mounting portion 45 is also formed of the right member 61 and the left member 65, and the right member 61 and the left member 65 are integrated by a screw 79 so that the rotation fixing portion 27 is sandwiched between the right member 61 and the left member 65. When the reference portion 23 is positioned at a substantially target position of the attachment portion 45, the upper surface 25 of the reference portion 23 and the bottom surface of the attachment portion 45 are parallel to each other.

  In addition, the attachment 45 has an end of the attachment 45 of the astronomical adjustment tool 10 so that the adjustment tool 10 can be fixed to an accessory attachment rail for attaching a strobe light or the like provided in the housing of the camera 89. A fixing groove 47 is provided to allow the portion to be inserted and fixed.

  When the upper surface 25 of the reference portion 23 and the bottom surface of the mounting portion 45 are parallel, the index protrusion 53 of the altitude reading window coincides with the reference point (0-degree scale) of the scale portion 39 provided on the rotation fixing portion 27. I am doing so.

  Further, when the fixing knob 71 is rotated and loosened, the measuring part 21 including the reference part 23 can be rotated with respect to the main body part 43, and the fixing part 71 is twisted by rotating the reference part 23 by a predetermined angle. Then, the end of the knob part 73 can press the periphery of the knob mounting hole 55 to fix the rotation fixing part 27 so as not to rotate with respect to the main body part 43, and the upper surface 25 of the reference part 23 at this time And the angle at which the bottom surface of the mounting portion 45 intersects can be read from the numerical value of the scale portion 39.

  For this reason, this adjustment tool reads the numerical value of the scale of the rotation fixing portion 27 that can be seen in the confirmation window 51 to see the angle at which the plane formed by the upper surface 25 of the reference portion 23 and the plane formed by the bottom surface of the mounting portion 45 intersect. It is something that can be easily known.

  Therefore, when preparing for astronomical photography using this astronomical adjustment tool 10, first the latitude of the point where the celestial object is observed or the altitude of the polar star is set at the position of the index projection 53 of the confirmation window 51, and the scale of the rotation fixing part 27 is set. In addition, the astronomical adjustment tool 10 is attached to the astronomical observation platform 85 as shown in FIG. 4, the astronomical observation platform 85 is fixed to the tripod 80, and the astronomical observation platform 85 is rotated. A camera 89 is fixed to 86 using a camera fixing tool 87.

  Then, the operation lever 81 of the tripod 80 is operated to tilt the astronomical observation head 85, the level 31 is read to make the upper surface 25 of the reference portion 23 horizontal, and the direction is read by the disc magnet 33 to observe the astronomical object. When the front of the observing head 85 is directed to the north, the front of the astronomical observing head 85, that is, the rotating plate 86 can be easily faced to the north star.

  Then, when the polar star in the field of view is aligned with the center of the field of view by the polar axis telescope of the astronomical observation head 85, the rotating plate 86 can be correctly faced to the north star.

  Thereafter, shooting is started so that a desired star is captured in the field of view of the camera 89 attached to the camera fixture 87, and when the rotating plate 86 is rotated at an angle of 15 degrees in one hour, the camera 89 is predetermined. Even with long-exposure photos that rotate around the polar axis according to the movement of the stars, the stars in the field of view of the camera 89 can be photographed in a stationary state.

  As described above, when using the astronomical adjustment tool 10 according to the present embodiment, the level of the inclination of the bottom surface of the mounting portion 45 with respect to the horizontal can be read by the level 31 and the altitude scale, and the orientation can be known by the disc magnet 33. Therefore, it can be attached to the observatory head 85 or the simple equator, and the head and equator can be easily directed to the North Star.

  Therefore, even when observing solar eclipses and lunar eclipses, the polar axis can be set without relying on the North Star, and the camera orientation can be adjusted in advance or the camera orientation can be changed with respect to the movement of the sun and the moon. It is also easy to set.

  In the Southern Hemisphere, there is no star that serves as a reference for the polar axis unlike the North Star, so the polar axis must be aligned based on the latitude (altitude) and orientation of the observation point. In some cases, adjustment and adjustment of the polar axis must be performed carefully while requiring time and effort. However, by using this astronomical adjustment tool 10, polar axis alignment can be easily performed.

  Furthermore, this astronomical adjustment tool 10 is small and light and easy to carry, and it can be easily mounted on the equator, etc. by means of the mounting part 45. Thus, the initial setting of the apparatus for automatically introducing a star into the field of view of the telescope and the confirmation of the initial setting can be performed.

  Also, for example, when called “Diamond Fuji”, when taking a natural photo close to a specific astronomical phenomenon such as the natural phenomenon of the sun on Mt. Even when setting 89, the astronomical adjustment tool 10 is fixed to the accessory fixing part of the camera 89, and the camera 89 is set to a predetermined azimuth and altitude to capture the natural scenery within the field of view. By doing so, it is possible to easily capture the astronomical phenomenon in the field of view of the camera 89 fixed when the celestial body reaches a predetermined position at a predetermined time and easily obtain a photograph of the astronomical phenomenon combined with the natural scenery.

  The astronomical telescope 10 is attached to the astronomical telescope, and the altitude and direction of the desired celestial body are read using a constellation table. It is also easy to match the astronomical telescope to the target astronomical object.

  Further, the present invention is not limited to the case of astronomical observation, but can be attached to binoculars or a terrestrial telescope, and point observation can be performed by reading the direction and angle (elevation angle or depression angle) of the observation direction.

  The astronomical adjustment tool 10 may use a fixed spacer 91 as an auxiliary component as shown in FIG.

  The fixing spacer 91 has a fixing rail 93 on the upper surface 25 of the flat plate-shaped main body, and can fix the mounting portion 45 of the adjustment tool 10 for astronomical observation, has a through hole near one end of the main body, and has a mounting screw 95. It can be inserted, and can be attached to various devices using a clamp by fixing the clamp to the fixed spacer 91 by using the mounting screw 95 for the simple equator, the camera 89 or the telescope, or by using the mounting screw 95.

  In the above embodiment shown in FIGS. 1 to 3, the level 31 is disposed on a plane passing through the center of the compass, the base 41, the mounting 45, etc. It is sufficient to provide the reference portion 23 together with the disc magnet 33, which is a azimuth magnet, so that the level of the upper surface 25 of the reference portion 23 can be confirmed.

  Furthermore, the central angle of the scale part 39 is not limited to 160 to 180 degrees, but may be about 140 degrees, and the reference point (0 degree position) of the scale part 39 is limited to the center of the scale part 39. Alternatively, the forward rotation range and the backward rotation range of the measurement unit 21 from the reference point may be made unequal.

DESCRIPTION OF SYMBOLS 10 Astronomical adjustment tool 21 Measuring part 23 Reference | standard part 25 Upper surface 27 Rotation fixed part 29 Shaft hole 31 Level 33 Disc magnet 35 Cover glass 37 Index line 38 Protrusion 39 Scale part 41 Base part 43 Main body part 45 Attachment part 47 Fixation Groove 51 Confirmation window 53 Index projection 55 Knob mounting hole 61 Right member 65 Left member 71 Fixing knob 73 Knob part 75 Screw part 79 Screw 80 Tripod 81 Operation lever 85 Astronomical observation platform 86 Rotating plate 87 Camera fixing tool 89 Camera 91 fixing Spacer 93 Fixed rail 95 Mounting screw

Claims (3)

A measurement unit including a reference unit in which a compass and a level are arranged side by side, and a rotation fixing unit having a rotation axis parallel to the upper surface of the reference unit;
A main body having a confirmation window for rotatably supporting the rotation fixing portion and exposing a part of a side surface of the rotation fixing portion, and an attachment portion having a bottom surface parallel to the rotation axis of the rotation fixing portion. Formed with a base portion,
An astronomical adjustment tool characterized in that an angle scale is provided on a side surface of the rotation fixing portion, and the angle scale is visible from the confirmation window.   The check window has an index, and the angle scale has a reference point of the angle scale located on the index of the check window when the upper surface of the reference portion and the bottom surface of the mounting portion are parallel, and the measurement unit Is rotated with respect to the base portion, the angle at which the two planes of the plane formed by the upper surface of the measurement unit and the plane formed by the bottom surface of the attachment portion intersect is displayed on an angle scale located at the position of the index. The astronomical adjustment tool according to claim 1, wherein:   Indicating the direction of the plane passing through the center of the azimuth magnet in the vicinity of the azimuth magnet or on the cover glass covering the azimuth magnet, passing through the center of the mounting portion and the reference portion and being a plane perpendicular to the rotation axis The astronomical adjustment tool according to claim 1 or 2, characterized in that is provided.

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