Eyepiece structure with unrotatable eyeshade

Abstract

The utility model provides an eyepiece structure with a non-rotating eyeshade, which comprises a lens locking ring, an eyepiece sleeve, a diopter adjusting ring, a plurality of lenses, an eyeshade ring and a flange cylinder, the plurality of lenses are arranged in a cavity of the eyepiece sleeve, two ends of the lenses are respectively pressed by a boss retainer ring and the lens locking ring, and the eyeshade ring is sleeved outside one end of the eyepiece sleeve. The other end of the eyepiece sleeve is sleeved with a flange cylinder, the eyepiece sleeve can move left and right in the flange cylinder, the middle part of the eyepiece sleeve is sleeved with a diopter adjusting ring, the inner surface of the connection part of the diopter adjusting ring and the flange cylinder is provided with a first internal thread, and the second external thread section is nested in the diopter adjusting ring and is in threaded connection with the first internal thread; a second check ring is arranged at one end, close to the eye side, of the diopter adjusting ring, a connecting boss is arranged in the middle of the eyepiece sleeve, the second check ring abuts against one side of the connecting boss, and the other side of the second check ring is pressed by the eyeshade ring. The lenses are firmly installed and not prone to loosening and falling off, the vision adjusting ring rotates and cannot drive the eyeshade ring to rotate together, and the use experience feeling of customers is improved.

Description

Technical Field

[0001] This utility model relates to an eyepiece structure for an eye mask that does not rotate. Background Technology

[0002] Currently, the eyepiece structures used in traditional rifle sight systems can be found in [reference needed]. Figure 1 As shown, the device includes an eyepiece tube, a diopter adjustment ring, several lenses, an eyecup ring, and a flange. The diopter adjustment ring and the eyecup ring are manufactured as a single unit, and the lenses installed inside the eyepiece tube are pressed together by the eyecup ring. This structure has the following technical problems:

[0003] First: Because the diopter adjustment ring and the eye shield ring are manufactured as a single unit, and several lenses installed inside the eyepiece tube are held in place by the eye shield ring, when the diopter adjustment ring is adjusted, the diopter adjustment ring and the eye shield ring move left and right together, causing the lenses to loosen and fall out.

[0004] Second: Since the diopter adjustment ring and the eye mask ring are manufactured as a single unit, when the diopter adjustment ring is adjusted, the diopter adjustment ring and the eye mask ring rotate together, affecting the customer's experience. Summary of the Invention

[0005] The purpose of this utility model is to provide an eyepiece structure that does not rotate in the eyepiece, solving the problems in the prior art where the diopter adjustment ring and the eyepiece ring are manufactured as a single unit, and the lenses installed inside the eyepiece tube are pressed together by the eyepiece ring. When the diopter adjustment ring is adjusted, the diopter adjustment ring and the eyepiece ring move left and right together, causing the lenses to loosen and fall out. In addition, the diopter adjustment ring and the eyepiece ring rotate together, affecting the customer's experience.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An eyepiece structure with a non-rotating eyecup includes a lens locking ring, an eyepiece tube, a diopter adjustment ring, several lenses, an eyecup ring, and a flange tube. A boss retaining ring is provided at one end of the eyepiece tube cavity, and a lens locking ring is installed inside the other end of the eyepiece tube cavity, located on the image plane side. Several lenses are placed inside the eyepiece tube cavity, with their ends respectively pressed by the boss retaining ring and the lens locking ring. An eyecup ring is fitted outside one end of the eyepiece tube, and a flange tube is fitted outside the other end of the eyepiece tube. The eyepiece tube can move left and right within the flange tube. A diopter adjustment ring is fitted in the middle of the eyepiece tube. A first external thread section is provided on the flange tube near the image plane side, and a second external thread section is provided on the side of the flange tube near the diopter adjustment ring. A first internal thread is provided on the inner surface where the diopter adjustment ring and the flange tube meet. The second external thread section is nested inside the diopter adjustment ring and threadedly connected to the first internal thread. A second retaining ring is provided at the end of the diopter adjustment ring near the eye. A connecting boss is provided in the middle of the eyepiece tube. The second retaining ring rests on one side of the connecting boss, and the other side of the second retaining ring is pressed by the eye shield ring.

[0008] When the diopter adjustment ring is rotated, the second external thread section of the flange cylinder is threadedly connected to the first internal thread inside the diopter adjustment ring, causing the diopter adjustment ring, the eye shield ring, and the eyepiece tube to move left and right together, thereby achieving diopter adjustment.

[0009] Preferably, the plurality of lenses include eyepiece one, eyepiece two, eyepiece three, eyepiece four and eyepiece five arranged in sequence, wherein eyepiece three and eyepiece four are glued together.

[0010] Preferably, a first spacer is placed between eyepiece one and eyepiece two, a second spacer is placed between eyepiece two and eyepiece three, and a light-blocking plate is placed between eyepiece four and eyepiece five. One end of eyepiece one is pressed down by a protruding retaining ring, and one side of eyepiece five is pressed down by a lens locking ring.

[0011] Preferably, a third external thread is provided on the outer surface of one end of the eyepiece tube, and a second internal thread is provided on the inner surface of the eye shield ring, with one end of the eyepiece tube threadedly connected to the eye shield ring.

[0012] Preferably, a limiting screw is installed in the middle of the eyepiece tube, and the limiting screw is nested in the limiting groove of the flange tube.

[0013] Compared with the prior art, the present invention has the following technical advantages:

[0014] 1) A boss retaining ring is provided at one end of the lens tube cavity, and a lens locking ring is installed inside the other end of the lens tube cavity. The lens locking ring is located on the image plane side. Several lenses are placed inside the lens tube cavity and are pressed at both ends by the boss retaining ring and the lens locking ring respectively. Even if the entire eyepiece tube moves back and forth, the lenses will not loosen or fall out. The installation is firm and reliable.

[0015] 2) The diopter adjustment ring and the eye mask ring are manufactured and installed separately. When adjusting the diopter adjustment ring, the rotation of the diopter adjustment ring will not cause the eye mask ring to rotate together, thus improving the user experience. Attached Figure Description

[0016] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0017] Figure 1 This is a cross-sectional view of the overall structure of an eyepiece lens in the prior art;

[0018] Figure 2 This is a perspective view of the present invention from one angle;

[0019] Figure 3 This is a perspective view of the present invention from another angle;

[0020] Figure 4 This is an exploded view of the present invention;

[0021] Figure 5 This is a structural cross-sectional view of one of the present invention;

[0022] Figure 6 This is another structural cross-sectional view of this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0024] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] refer to Figures 2 to 6 As shown, this utility model provides an eyepiece structure with a non-rotating eyecup, characterized by: a lens locking ring 1, an eyepiece tube 2, a diopter adjustment ring 3, several lenses 4, an eyecup ring 5, and a flange tube 6. A boss retaining ring 21 is provided at one end of the lens tube cavity 20 of the eyepiece tube 2. The lens locking ring 1 is installed inside the other end of the lens tube cavity 20, located on the image plane side. Several lenses 4 are placed inside the lens tube cavity 20, with both ends pressed by the boss retaining ring 21 and the lens locking ring 1 respectively. An eyecup ring 5 is fitted outside one end of the eyepiece tube 2, and a flange tube 6 is fitted outside the other end of the eyepiece tube 2. The eyepiece tube 2 can be rotated within the flange tube 6. The eyepiece tube 2 is fitted with a diopter adjustment ring 3 in the middle. The flange tube 6 is provided with a first external thread section 61 near the image plane. The flange tube 6 is provided with a second external thread section 62 near the diopter adjustment ring 3. The inner surface of the diopter adjustment ring 3 where it meets the flange tube 6 is provided with a first internal thread 31. The second external thread section 62 is nested in the diopter adjustment ring 3 and threadedly connected to the first internal thread 31. The end of the diopter adjustment ring 3 near the eye is provided with a second retaining ring 32. The middle part of the eyepiece tube 2 is provided with a connecting boss 22. The second retaining ring 32 is pressed against one side of the connecting boss 22. The other side of the second retaining ring 32 is pressed by the eye shield ring 5.

[0027] When the flange cylinder 6 is installed on the corresponding equipment using the first external thread section 61, when the diopter adjustment ring 3 is rotated, since the second external thread section 62 of the flange cylinder 6 is threadedly connected to the first internal thread 31 inside the diopter adjustment ring 3, rotating the diopter adjustment ring 3 will cause the diopter adjustment ring 3 to move left and right along the optical axis. By using the second retaining ring 32 set in the diopter adjustment ring 3, the diopter adjustment ring 3 can be pushed to move left and right together with the eye mask ring 5 and the eyepiece cylinder 2, thereby realizing diopter adjustment.

[0028] It has the following advantages: 1) A boss retaining ring 21 is provided at one end of the lens tube cavity 20 of the eyepiece tube, and a lens locking ring 1 is installed inside the other end of the lens tube cavity 20. The lens locking ring 1 is located on the image plane side. Several lenses 4 are placed inside the lens tube cavity 20 and are pressed at both ends by the boss retaining ring 21 and the lens locking ring 1 respectively. Even if the entire eyepiece tube 2 moves back and forth, the lenses 4 will not loosen or fall out. The installation is firm and reliable; 2) The diopter adjustment ring 3 is manufactured and installed separately from the eyecup ring 5. When the diopter adjustment ring 3 is adjusted, the rotation of the diopter adjustment ring 3 will not cause the eyecup ring 5 to rotate together, which improves the user experience.

[0029] Preferably, the plurality of lenses 4 include eyepiece 1 41, eyepiece 2 42, eyepiece 3 43, eyepiece 44 and eyepiece 5 45 arranged in sequence, wherein eyepiece 3 43 and eyepiece 44 are glued together, and the structure is simple.

[0030] Preferably, a first spacer 46 is placed between eyepiece 1 41 and eyepiece 2 42, a second spacer 47 is placed between eyepiece 2 42 and eyepiece 3 43, and a light-blocking plate 48 is placed between eyepiece 44 and eyepiece 5 45. One end of eyepiece 1 41 is pressed by a boss retaining ring 21, and one side of eyepiece 5 45 is pressed by a lens locking ring 1.

[0031] Preferably, a third external thread 23 is provided on the outer surface of one end of the eyepiece tube 2, and a second internal thread 51 is provided on the inner surface of the eye shield ring 5. One end of the eyepiece tube 2 is threadedly connected to the eye shield ring 5, which has a simple structure and is easy to install.

[0032] Preferably, a limiting screw 7 is installed in the middle of the eyepiece tube 2. The limiting screw 7 is nested in the limiting groove 64 of the flange tube 6, which can limit the left and right movement of the eyepiece tube 2. The structure is simple.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above embodiments merely illustrate specific implementations of the utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A non-rotating eyepiece structure for an eyecup, characterized by: The system includes a lens locking ring (1), an eyepiece tube (2), a diopter adjustment ring (3), several lenses (4), an eyecup ring (5), and a flange tube (6). A boss retaining ring (21) is provided at one end of the lens tube cavity (20), and the lens locking ring (1) is installed inside the other end of the lens tube cavity (20). The lens locking ring (1) is located on the image plane side. Several lenses (4) are placed inside the lens tube cavity (20), and their ends are respectively pressed by the boss retaining ring (21) and the lens locking ring (1). An eyecup ring (5) is fitted outside one end of the eyepiece tube (2), and a flange tube (6) is fitted outside the other end of the eyepiece tube (2). The eyepiece tube (2) can move left and right inside the flange tube (6). The middle part is fitted with a diopter adjustment ring (3), the flange cylinder (6) is provided with a first external thread section (61) near the image plane, the flange cylinder (6) is provided with a second external thread section (62) on the side near the diopter adjustment ring (3), the inner surface of the diopter adjustment ring (3) and the flange cylinder (6) is provided with a first internal thread (31), the second external thread section (62) is nested in the diopter adjustment ring (3) and threadedly connected with the first internal thread (31), the end of the diopter adjustment ring (3) near the eye is provided with a second retaining ring (32), the middle part of the eyepiece tube (2) is provided with a connecting boss (22), the second retaining ring (32) is pressed against one side of the connecting boss (22), and the other side of the second retaining ring (32) is pressed by the eye shield ring (5); When the diopter adjustment ring (3) is rotated, the second external thread section (62) of the flange cylinder (6) is threadedly connected to the first internal thread (31) inside the diopter adjustment ring (3), and the diopter adjustment ring (3), together with the eye shield ring (5) and the eyepiece tube (2), moves left and right to achieve diopter adjustment.

2. A non-rotating eyepiece structure for an eyecup according to claim 1, wherein: The plurality of lenses (4) include eyepiece one (41), eyepiece two (42), eyepiece three (43), eyepiece four (44) and eyepiece five (45) arranged in sequence, wherein eyepiece three (43) and eyepiece four (44) are glued together.

3. A non-rotating eyepiece structure for an eyecup according to claim 2, wherein: A first spacer (46) is placed between eyepiece 1 (41) and eyepiece 2 (42), a second spacer (47) is placed between eyepiece 2 (42) and eyepiece 3 (43), and a light-blocking plate (48) is placed between eyepiece 4 (44) and eyepiece 5 (45). One end of eyepiece 1 (41) is pressed by a boss retaining ring (21), and one side of eyepiece 5 (45) is pressed by a lens locking ring (1).

4. A non-rotating eyepiece structure for an eyecup according to claim 1 or 2 or 3, wherein: A third external thread (23) is provided on the outer surface of one end of the eyepiece tube (2), and a second internal thread (51) is provided on the inner surface of the eye shield ring (5). One end of the eyepiece tube (2) is threadedly connected to the eye shield ring (5).

5. A non-rotating eyepiece structure for an eyecup according to claim 1 or 2 or 3, wherein: A limiting screw (7) is installed in the middle of the eyepiece tube (2), and the limiting screw (7) is nested in the limiting groove (64) of the flange tube (6).

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