CN109991727B - Telescope and focusing type cover thereof - Google Patents

Abstract

The invention discloses a telescope and a focusing type cover thereof. The single-barrel type lens barrel group comprises a lens barrel and a shading barrel movably sleeved on the lens barrel, and the optical lens seat is arranged in the shading barrel and fixed on the lens barrel. The focusing cover is detachably assembled at the tail end part of the shading cylinder and comprises a body, a focusing piece and a cover body. The body is tubular, the inner edge of the body is provided with a bearing part, the body is respectively provided with a connecting part and a containing part at two opposite sides of the bearing part, and the connecting part is detachably assembled at the tail end part of the shading cylinder. The focusing piece is detachably positioned at the bearing part and is positioned at the inner side of the accommodating part. The cover body is detachably assembled on the accommodating part and is positioned between the bearing part and the cover body so as to shield the focusing piece. Therefore, the focusing type cover can effectively simplify focusing operation of the telescope and can improve added value.

Description

Telescope and focusing cover

Technical field

The present invention relates to a telescope cover, and in particular to a telescope and a focusing cover thereof.

Background technique

The covers of existing telescopes (such as monocular telescopes) are mostly of an integrated structure and only have the functions of shielding, dustproof and protection. Accordingly, when using an existing telescope for observation, it is necessary to remove the cover first, and then use complicated components and steps to focus the existing telescope.

Therefore, the inventor felt that the above-mentioned defects could be improved, so he devoted himself to research and applied scientific principles, and finally proposed an invention that is reasonably designed and effectively improves the above-mentioned defects.

Contents of the invention

An embodiment of the present invention provides a telescope and a focusing cover thereof, which can effectively improve the possible defects of the existing telescope covers.

An embodiment of the present invention discloses a telescope, which includes: a single-cylinder lens tube group, including: a lens tube; a light-shielding tube movably set on the lens tube; and an optical lens base arranged on the light-shielding tube. The optical lens holder is inside the tube and fixed on the lens tube. The optical lens holder includes a tube body and a plurality of lenses located in the tube body and spaced apart from each other. A pair of focusing covers is detachably assembled on the light shielding tube. The end portion, and the focusing cover includes: a body, which is tubular and has a bearing portion formed on the inner edge; the body forms a connecting portion and a receiving portion on opposite sides of the bearing portion; wherein, The connection part of the body is detachably assembled on the end part of the light shielding tube; a pair of focusing sheets is detachably positioned on the bearing part and located inside the accommodating part; a cover body, It is detachably assembled in the accommodating part, and the focusing sheet is located between the carrying part and the cover body, so that the cover body can shield the focusing sheet.

Preferably, the carrying portion includes a plurality of positioning structures, the focusing piece has a pair of focus areas and an installation area located outside the focus area, and the installation area is formed with a plurality of matching structures, and the focus piece A plurality of the matching structures are assembled to a plurality of the positioning structures to maintain relative positions with the body.

Preferably, the height of the accommodating part is smaller than the height of the connecting part, the accommodating part of the body is formed with a threaded structure, and the cover is provided with a threaded part, and the cover can pass through the threaded part. The part is screwed to the thread structure to be assembled to the accommodating part of the body.

Preferably, the focusing cover further includes a matching layer, and the matching layer is fixed on the inner surface of the connecting portion of the body, so that the matching layer pressurly abuts all the parts of the light shielding tube. The terminal part.

Preferably, the focus sheet has a circular focus area and an installation area located outside the focus area. The focus area defines four quadrants and is formed with: a plurality of first lines and a plurality of second lines. Textures, respectively located in two of the four quadrants; wherein a plurality of the first textures are parallel to each other, and one of the first textures of the plurality of first textures is connected to the focus the center of the circle of the focus area; a plurality of second lines are parallel to each other, and one of the second lines of the plurality of second lines is connected to the center of the circle of the focus area; a plurality of third lines, located on four The other two quadrants of the quadrants; wherein a plurality of the third lines are parallel to each other, and one of the plurality of third lines is connected to the center of the circle of the focus area , and the first texture, the second texture, and the third texture connected to the center of the circle together form a Y-shaped texture.

Preferably, each of the third lines other than the Y-shaped lines is connected to one of the first lines or one of the second lines, and forms an obtuse angle between them, and the third lines that are not connected to the third lines are The plurality of first lines are respectively connected to the plurality of second lines that are not connected to the third lines, and each connected first line is sandwiched with the corresponding second line to form a acute angle.

Preferably, the focusing sheet is a transparent plate and has a focusing area and a mounting area located outside the focusing area. The mounting area is detachably positioned on the bearing part, and the bearing part is annular and faces the A projection area formed by the forward projection of the focus piece surrounds the outside of the focus area.

Embodiments of the present invention also disclose a focusing cover for a telescope, which includes: a body, which is tubular and has a bearing portion formed on its inner edge; the body is formed with a connecting portion and a receiving portion on opposite sides of the bearing portion. part; wherein, the connecting part of the main body is used to be detachably assembled to a cylindrical body; a pair of focusing sheets is detachably positioned on the carrying part; a cover is detachably assembled to the container. Set up department.

Preferably, the focusing cover further includes a matching layer, and the matching layer is fixed on the inner surface of the connecting portion of the body, so that the matching layer pressurly abuts all the parts of the light shielding tube. The end portion; the height of the accommodating portion is less than the height of the connecting portion, the accommodating portion of the body is formed with a threaded structure, and the cover is provided with a threaded portion, and the cover can pass through the The threaded portion is screwed to the threaded structure to be assembled into the accommodating portion of the body; the bearing portion includes a plurality of positioning structures, and the focusing piece has a pair of focusing areas and a A mounting area, and the mounting area is formed with a plurality of matching structures, and the focusing film is assembled to a plurality of positioning structures through a plurality of the matching structures to maintain relative positions with the body.

Preferably, the focus sheet is a transparent plate and has a circular focus area and an installation area located outside the focus area. The focus area defines four quadrants and is formed with: a plurality of first lines. and a plurality of second lines, respectively located in two of the four quadrants; wherein the plurality of first lines are parallel to each other, and one of the first lines of the plurality of first lines connected to the center of the circle of the focus area; a plurality of second lines are parallel to each other, and one of the second lines of the plurality of second lines is connected to the center of the circle of the focus area; a plurality of third Textures, located in the other two of the four quadrants; wherein a plurality of the third textures are parallel to each other, and one of the plurality of third textures is connected to the focus The center of the circle of the area, and the first pattern, the second pattern, and the third pattern connected to the center of the circle together form a Y-shaped pattern; wherein, each of the lines other than the Y-shaped pattern The third lines are connected to one of the first lines or one of the second lines, and form an obtuse angle between them, and a plurality of the first lines that are not connected to the third lines are respectively connected to the lines that are not connected to the third lines. There are a plurality of second textures of the third texture, and each connected first texture forms an acute angle with the corresponding second texture.

In summary, the telescope and its focusing cover disclosed in the embodiments of the present invention cooperate with the detachable main body and the cover, so that the main body can be used to position the focusing piece, thereby effectively simplifying the operation of the telescope. Focus operation, and can increase the added value of the focus-type covering.

To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and illustration and are not used to limit the scope of the present invention in any way.

Description of drawings

Figure 1 is a schematic three-dimensional view of the telescope of the present invention.

Figure 2 is a partial cross-sectional view along section line II-II in Figure 1.

Figure 3 is an exploded schematic diagram of Figure 1.

Figure 4 is a partially exploded schematic diagram of Figure 1 from another perspective.

Figure 5 is an exploded schematic diagram of the focusing mask of the present invention.

Figure 6 is an exploded schematic diagram of the focus-type covering from another perspective according to the present invention.

Figure 7 is a schematic cross-sectional view along the section line VⅡ-VⅡ in Figure 3.

Figure 8 is a schematic plan view of the focusing sheet of the focusing type cover according to the present invention.

Detailed ways

Please refer to Figures 1 to 8, which are embodiments of the present invention. It should be noted that the relevant quantities and shapes mentioned in the drawings in this embodiment are only used to specifically illustrate the implementation of the present invention. In order to facilitate understanding of the content of the present invention, it is not used to limit the protection scope of the present invention.

As shown in FIGS. 1 to 3 , this embodiment discloses a telescope 100 , particularly a monocular telescope or an astronomical telescope, but the invention is not limited thereto. Wherein, the telescope 100 includes a single-cylinder lens tube group 1, an optical lens base 2 fixed in the single-cylinder lens tube group 1, and a detachable cover on the single-cylinder lens tube group 1. A pair of focal covers 3. It should be noted that although the focusing cover 3 in this embodiment is described as being matched with the above-mentioned monocular lens barrel group 1, in other embodiments not shown in the present invention, the focusing cover 3 can also be used It is applied to the related structures of other telescopes and is not limited to this embodiment.

As shown in Figures 1 to 3, the single-cylinder lens barrel set 1 includes a lens barrel 11 and a light shielding barrel 12 movably mounted on the lens barrel 11. The lens barrel 11 contains at least one lens. (not shown in the figure), and the light-shielding tube 12 is a hollow tube body with no lens fixed on the inner edge. The optical lens holder 2 is disposed in the light-shielding barrel 12 and fixed on the lens barrel 11, and the optical lens holder 2 includes a tube body 21 fixed to the lens barrel 11 and located in the tube body 21. A plurality of lenses 22 spaced apart from each other.

Furthermore, the light-shielding barrel 12 can move along the long axis direction of the lens barrel 11 to extend the light entrance channel of the optical lens holder 2 and thereby block external light from affecting the multiple lenses 22 in the optical lens holder 2 to interfere.

As shown in Figures 4 to 6, the focusing cover 3 is detachably assembled on the end portion 121 of the light shielding tube 12 (such as the right end of the light shielding tube 12 in Figure 4), wherein the focusing cover 3 It includes a tubular body 31, a pair of focusing plates 32 provided on the body 31, and a cover 33 detachably assembled on the body 31. Each component of the focusing cover 3 will be described separately below, but the present invention is not limited thereto.

In this embodiment, the body 31 is an integrally formed single-piece structure and has a bearing portion 311 formed on its inner edge. The body 31 is formed with a connecting portion 312 and a receiving portion on opposite sides of the bearing portion 311. 313 (for example: the annular part on the left side of the main body 31 in Figure 5 is the connecting part 312, and the annular part on the right side of the main body 31 is the accommodating part 313). The height of the accommodating portion 313 is smaller than the height of the connecting portion 312 in this embodiment. Furthermore, the connecting portion 312 of the main body 31 can be detachably assembled to the end portion 121 of the light-shielding tube 12, and the assembly method between the main body 31 and the light-shielding tube 12 can be adjusted according to the designer's needs. The present invention is here No restrictions.

In this embodiment, the focusing cover 3 may further include a matching layer 34, and the matching layer 34 is fixed on the inner surface of the connecting portion 312 of the body 31, and the end portion 121 of the light shielding tube 12 It can be directly inserted into the matching layer 34 so that the matching layer 34 presses against the end portion 121 of the light-shielding tube 12 . The focusing cover 3 and the light-shielding tube 12 can firmly maintain their relative positions through the friction fit between the matching layer 34 and the end portion 121 .

As shown in FIGS. 4 to 6 , the cover 33 is detachably assembled in the accommodating portion 313 of the main body 31 . The assembly method between the main body 31 and the cover 33 can be adjusted according to the designer's needs. The present invention No restrictions are imposed here. For example, the accommodating portion 313 of the main body 31 is formed with a threaded structure 3131, and the cover 33 is provided with a threaded portion 331. The cover 33 can be screwed to the threaded structure 3131 of the main body 31 through the threaded portion 331. It is assembled to the accommodating portion 313 of the main body 31 .

In this embodiment, the thread structure 3131 is formed on the inner surface of the accommodating portion 313. The cover 33 includes a circular flat plate portion 332 and the thread extending vertically from the flat plate portion 332. Department 331. The threaded portion 331 is annular and has corresponding threads on its outer surface, so that the threaded portion 331 is located in the accommodating portion 313 after the cover 33 is assembled on the body 31 . Furthermore, the cover 33 is formed with a plurality of protruding ribs 333 connected in sequence on the outer edge of the flat plate portion 332, and the plurality of protruding ribs 333 protrude from the adjacent outer surface of the body 31 to provide convenience. This will facilitate the disassembly and assembly between the cover 33 and the main body 31 .

As shown in FIGS. 5 to 7 , the focusing piece 32 is detachably positioned on the carrying portion 311 of the body 31 and is located inside the accommodating portion 313 , and in this embodiment, the focusing piece 32 is located on the carrying portion 311 of the body 31 . between the carrying portion 311 of the main body 31 and the above-mentioned cover 33 so that the cover 33 can cover the focusing sheet 32 . The focusing sheet 32 has a pair of focusing areas 321 and a mounting area 322 located outside the focusing area 321 , and the mounting area 322 is detachably positioned on the carrying portion 311 . However, the positioning method between the focusing piece 32 and the main body 31 can be adjusted according to the designer's needs, and is not limited by the present invention.

In this embodiment, the carrying portion 311 includes a plurality of positioning structures 3111, the mounting area 322 is formed with a plurality of matching structures 3221, and the focusing piece 32 is assembled to a plurality of The positioning structure 3111 maintains the relative position with the body 31 . In more detail, the bearing portion 311 includes a bearing ring 3112, and each positioning structure 3111 can be a screw that can be assembled on the bearing ring 3112, and each matching structure 3221 is a through hole formed in the mounting area 322. . The focusing film 32 is fixed to the bearing ring 3112 through the plurality of positioning structures 3111 (eg, screws) passing through the plurality of matching structures 3221 (eg, perforations) in the mounting area 322 respectively.

To put it another way, the outline of the carrying portion 311 is generally annular, and a projection area formed by the orthogonal projection of the carrying portion 311 toward the focusing sheet 32 surrounds the outside of the focusing area 321 , but the present invention is not limited to this. Limited to this. For example, in an embodiment of the present invention that is not shown, the carrying portion 311 may also include a plurality of pieces arranged in an annular shape, and the plurality of positioning structures 3111 (such as screws) may be fixed to respective positions. The plurality of pieces of the carrying part 311.

Furthermore, in this embodiment, the mounting area 322 is annular and surrounds the outside of the focusing area 321, but the invention is not limited thereto. For example: in an embodiment of the present invention not shown, the installation area 322 may also include a plurality of sheets arranged in an annular shape, and the plurality of positioning structures 3111 (such as screws) may be fixed to respective locations. A plurality of pieces of the mounting area 322.

Accordingly, the focusing cover 3 disclosed in the embodiment of the present invention can cooperate with the cover 33 through the detachable main body 31, so that the main body 31 can be used to position the focusing piece 32, thereby effectively simplifying the operation of the telescope 100. Focusing operation, and can enhance the added value of the focusing type cover 3.

Furthermore, since the central optical axis of the lens in the telescope 100 passes through the focusing cover 3, the focusing cover 3 of this embodiment forms a structure capable of positioning the focusing piece 32 through the relative position. The main body 31 allows the position of the focusing piece 32 to correspond to the central optical axis of the lens in the telescope 100 through the main body 31, so that the focusing cover 3 can be used to accurately achieve the focusing operation of the telescope 100.

In addition, when the telescope 100 is in use, the cover 33 is first separated from the main body 31, and then the focusing piece 32 positioned on the main body 31 is used to focus the telescope 100; finally, the main body 31 and its The focusing piece 32 on the lens is separated from the light-shielding tube 12, and the single-tube lens tube group 1 and the optical lens base 2 in it can be used for relevant observations.

It should be additionally noted that the size of the focusing piece 32 and the specific texture pattern of the focusing area 321 can be adjusted according to the designer's needs, and the present invention is not limited here. In this embodiment, as shown in FIG. 8 , the focusing area 321 of the focusing sheet 32 is circular and defines four quadrants, and the focusing sheet 32 is formed with a plurality of first lines in the four quadrants. 3211, a plurality of second textures 3212, and a plurality of third textures 3213. Among them, the plurality of first lines 3211 and the plurality of second lines 3212 are respectively located in two of the four quadrants (for example: the plurality of first lines 3211 in Figure 8 are located in the upper left quadrant, and the plurality of second lines The texture 3212 is located in the upper right quadrant), and the plurality of third textures 3213 are located in the other two quadrants of the four quadrants (for example: the plurality of third textures 3213 in Figure 8 are located in the lower two quadrants.

In more detail, the plurality of first lines 3211 are parallel to each other and have different lengths, and one of the first lines 3211' of the plurality of first lines 3211 is connected to the center C of the focus area 321. The plurality of second lines 3212 are parallel to each other and have different lengths, and one of the second lines 3212′ of the plurality of second lines 3212 is connected to the center of the focus area 321. The plurality of third lines 3213 are parallel to each other and have different lengths, and one third line 3213′ of the plurality of third lines 3213 is connected to the center C of the focus area 321.

Among them, the first texture 3211', the second texture 3212', and the third texture 3213' connected to the center C of the focus area 321 together form a Y-shaped texture. That is to say, the lengths of the first lines 3211', the second lines 3212', and the third lines 3213' are substantially equal to the radius of the focus area 321 of the focus sheet 32, but the present invention is not limited thereto. In addition, the first pattern 3211' and the second pattern 3212' are interposed to form an acute angle, and the first pattern 3211' and the third pattern 3213' are interposed to form an obtuse angle, and the angle is equal to the angle between the second pattern 3212' and the third pattern 3213'. An acute angle formed by the third lines 3213'.

Furthermore, each third pattern 3213 other than the Y-shaped pattern is connected to a first pattern 3211 or a second pattern 3212, and forms an obtuse angle between them, and is not connected to the plurality of third patterns 3213. The first lines 3211 are respectively connected to a plurality of second lines 3212 that are not connected to the third lines 3213, and each connected first lines 3211 and the corresponding second lines 3212 form an acute angle.

It should be noted that the focusing sheet 32 is a transparent plate in this embodiment, and the plurality of first lines 3211, the plurality of second lines 3212, and the plurality of third lines 3213 are formed on the focusing sheet. Non-transparent texture on 32. In addition, in other embodiments not shown in the present invention, the focusing sheet 32 may also be a non-transparent plate, and the focusing sheet 32 has a plurality of first lines 3211, a plurality of second lines 3212, and a plurality of The third lines 3213 are all presented in the form of hollow holes, but the first lines 3211, the second lines 3212, and the third lines 3213 do not need to be connected to each other.

Furthermore, the focusing piece 32 of this embodiment is accommodated in the accommodating portion 313 of the main body 31, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the focusing piece 32 can also be stored separately from the main body 31 and the cover 33 , and when the telescope 100 is to be focused, it can be stored separately. The cover 33 is separated from the main body 31 , and then the focusing sheet 32 is positioned on the carrying portion 311 of the main body 31 .

[Technical effects of the embodiments of the present invention]

As mentioned above, the telescope and its focusing cover disclosed in the embodiments of the present invention cooperate with the detachable main body and the cover so that the main body can be used to position the focusing piece, thereby effectively simplifying the operation of the telescope. Focus operation, and can increase the added value of the focus-type covering.

Furthermore, since the central optical axis of the lens in the telescope passes through the focusing cover, the focusing cover of this embodiment forms a body capable of positioning the focusing sheet through the relative position. The position of the focusing piece can be corresponding to the central optical axis of the lens in the telescope through the body, so that the focusing cover can be used to accurately achieve the focusing operation of the telescope.

In addition, the focusing cover disclosed in the embodiment of the present invention can be effectively matched with the end portion of the cover body, the focusing piece, and the light shielding tube through the body structure design, so as to achieve the purpose of not significantly changing the existing cover. In the case of contours, it effectively enhances the value of focused coverage.

In addition, the focusing sheet disclosed in the embodiment of the present invention may be composed of a specific texture pattern formed on a transparent plate, and through the above specific texture pattern (such as: first texture, second texture, and third texture) design, which can effectively improve the focusing effect and value of the focusing film.

The above descriptions are only preferred and feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the scope of protection of the present invention shall fall within the scope of protection of the present invention.

Claims (9)

1. A telescope, characterized in that the telescope includes: A monocular lens tube set, including: a lens tube; and A light-shielding tube, movably mounted on the lens barrel; An optical lens holder is provided in the light shielding barrel and fixed on the lens barrel. The optical lens holder includes a tube body and a plurality of lenses located in the tube body and spaced apart from each other; and A focusing cover is detachably assembled at the end of the light shielding tube, and the focusing cover includes: A body is tubular and has a bearing portion formed on its inner edge. The body is formed with a connecting portion and a receiving portion on opposite sides of the bearing portion; wherein the connecting portion of the body is detachably assembled. At the end of the light-shielding tube; A pair of focusing sheets, detachably positioned on the carrying part and located inside the accommodating part; wherein the focusing sheet is a transparent plate and has a circular focusing area and a An installation area, the focus area is defined by four quadrants and formed: A plurality of first lines and a plurality of second lines respectively located in two of the four quadrants; and A plurality of third lines are located in the other two of the four quadrants; wherein a plurality of first lines, a plurality of second lines, and a plurality of third lines are formed in Non-transparent texture on the focusing film; Wherein, a plurality of the first lines are parallel to each other, and one of the first lines of the plurality of first lines is connected to the center of the circle of the focus area; a plurality of the second lines are parallel to each other, and a plurality of the second lines are parallel to each other. One of the second textures is connected to the center of the circle of the focus area; wherein a plurality of the third textures are parallel to each other, and one of the plurality of third textures is Three lines are connected to the center of the circle in the focus area, and the first lines, the second lines, and the third lines connected to the center of the circle together form a Y-shaped line; and A cover body is detachably assembled to the accommodating part, and the focusing sheet is located between the bearing part and the cover body, so that the cover body can shield the focusing sheet. 2. The telescope according to claim 1, wherein the carrying portion includes a plurality of positioning structures, the mounting area is formed with a plurality of matching structures, and the focusing piece is assembled through a plurality of the matching structures. A plurality of the positioning structures are used to maintain relative positions with the body. 3. The telescope according to claim 1, wherein the height of the accommodating part is less than the height of the connecting part, the accommodating part of the main body is formed with a threaded structure, and the cover is provided with There is a threaded part through which the cover body can be screwed to the threaded structure to be assembled into the accommodating part of the body. 4. The telescope according to claim 1, wherein the focusing cover further includes a mating layer, and the mating layer is fixed on the inner surface of the connecting portion of the body, so that the mating layer The layer is pressed against the end portion of the light-shielding tube. 5. The telescope according to claim 1, wherein each third pattern other than the Y-shaped pattern is connected to one of the first patterns or one of the second patterns, and is sandwiched to form a obtuse angle, and the plurality of first lines that are not connected to the third lines are respectively connected to the plurality of second lines that are not connected to the third lines, and each of the connected first lines An acute angle is formed between the corresponding second lines. 6. The telescope according to claim 1, wherein the mounting area is detachably positioned on the bearing portion, the bearing portion is annular and faces a projection area formed by orthographic projection of the focusing piece, It surrounds the outside of the focus area. 7. A focusing cover for a telescope, characterized in that the focusing cover for the telescope includes: A body is tubular in shape and has a bearing portion formed on its inner edge. The body is formed with a connecting portion and a receiving portion on opposite sides of the bearing portion; wherein, the connecting portion of the body is used to be detachable. Ground assembled in a cylindrical body; A pair of focusing sheets, detachably positioned on the carrying part; wherein the focusing sheet is a transparent plate and has a circular focusing area and an installation area located outside the focusing area, and the focusing area defines There are four quadrants formed by: A plurality of first lines and a plurality of second lines respectively located in two of the four quadrants; and A plurality of third lines are located in the other two of the four quadrants; wherein a plurality of first lines, a plurality of second lines, and a plurality of third lines are formed in Non-transparent texture on the focusing film; Wherein, a plurality of the first lines are parallel to each other, and one of the first lines of the plurality of first lines is connected to the center of the circle of the focus area; a plurality of the second lines are parallel to each other, and a plurality of the second lines are parallel to each other. One of the second textures is connected to the center of the circle of the focus area; wherein a plurality of the third textures are parallel to each other, and one of the plurality of third textures is Three lines are connected to the center of the circle of the focus area, and the first lines, the second lines, and the third lines connected to the center of the circle together form a Y-shaped line; and A cover body is detachably assembled to the accommodating part. 8. The focusing cover of the telescope according to claim 7, wherein the focusing cover further includes a matching layer, and the matching layer is fixed to the inner surface of the connecting portion of the body; The height of the accommodating part is less than the height of the connecting part, the accommodating part of the body is formed with a threaded structure, and the cover is provided with a threaded part, and the cover can be screwed to the threaded part through the threaded part. The threaded structure is assembled to the accommodating portion of the body; the bearing portion includes a plurality of positioning structures, the mounting area is formed with a plurality of matching structures, and the focusing film passes through a plurality of the matching structures. The structure is assembled to a plurality of the positioning structures to maintain relative positions with the body. 9. The focusing cover for a telescope according to claim 7, wherein each third pattern other than the Y-shaped pattern is connected to one of the first patterns or one of the second patterns, and The phase clip forms an obtuse angle, and the plurality of first lines that are not connected to the third lines are respectively connected to the plurality of second lines that are not connected to the third lines, and each connected The first lines and the corresponding second lines form an acute angle.