Light leakage prevention optical eyeshade

Abstract

The utility model provides a light leakage prevention optical eyeshade, and belongs to the technical field of individual soldier night vision equipment.The light leakage prevention optical eyeshade comprises an eyeshade body, vent holes, a shielding part, a blocking piece set and an inserting part, and when an observer does not actively apply acting force to the eyeshade body, the shielding part is closed at the moment and serves as a first layer of light leakage prevention structure; the blocking pieces are detachably fixed to the blades through the inserting parts, and the blocking pieces are overlapped to shield the cutting lines to serve as a second layer of light leakage preventing structure, so that light of the display screen of the optical instrument is prevented from leaking out of the cutting lines, and the hiding effect of the eye patch body in the natural state is guaranteed. When an observer needs to use the optical eyeshade, the observer needs to actively apply pressure to the eyeshade body, at the moment, the eyeshade body is deformed due to the pressure to drive the blades of the shielding part to turn over, the telescopic section stretches into the folding section, light leakage of the exhaust holes is prevented, and meanwhile the blocking pieces also turn over along with the blades; the display content of the display screen of the optical instrument can enter the field of view of an observer, and the concealment and safety of the eyeshade are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of individual night vision equipment, and specifically relates to an optical eye mask that prevents light leakage. Background Art

[0002] Optical eye masks are an important optical component. The main purpose of optical eye masks is to make the observer's pupil coincide with the exit pupil position of the optical system of the optical instrument. When the optical instrument is subjected to impact and vibration loads, the optical eye masks can protect the observer's eyes from collision, making it easier for the observer to track the target stably for a long time, shorten the focusing observation time, improve the accuracy of aiming and measurement, and block the interference of external light. At the same time, it reduces the light leakage of the optical instrument to avoid being discovered by the enemy when using the optical instrument at night. However, the existing eye masks have poor anti-light leakage effect. When worn and used, light leakage still exists. Especially at night, the bright light of the optical instrument display will shine directly from the light leakage of the optical eye mask like a "flashlight", making the observer's concealment easily exposed, posing a safety hazard. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, according to an embodiment of the present application, an anti-light leakage optical eye mask is proposed, comprising:

[0005] The eye mask body is elastic and is a hollow cavity with openings at both ends. The eye mask body includes a supporting section, a folding section, a telescopic section and a force-bearing section;

[0006] An exhaust hole is provided on the telescopic section and is used to adjust the pressure inside the eye mask body when the eye mask body is deformed;

[0007] A shielding portion, the shielding portion is arranged on the folding section along the radial direction of the eye mask body, a cutting line is arranged on the shielding portion, the cutting line divides the shielding portion into at least two leaves, and the leaves are opened when the eye mask body is in a compressed state;

[0008] A baffle set, which is arranged on the folding section of the shielding portion away from the force-bearing section along the radial direction of the eye mask body, and includes at least two baffles, which overlap to block the cutting line;

[0009] The plug-in parts, at least two of which are arranged on one side of the baffle close to the blade, are plug-connected with the blade to fix the baffle on the blade.

[0010] In a feasible implementation, the cutting line includes:

[0011] Two first tangent lines, the first tangent lines are arranged along the radial direction of the shielding portion, and the two first tangent lines intersect to divide the shielding portion into four blades separated from each other;

[0012] Four second tangents intersect the first tangents and are arranged at ends of the first tangents to increase an opening angle of a root of the blade.

[0013] In a feasible implementation, the baffle blocks two adjacent second tangents; the maximum length of the baffle is greater than the maximum straight-line distance between the two second tangents blocked by the baffle; the width of the baffle is greater than the radius of the shielding portion to block the intersection of the two first tangents.

[0014] In a feasible implementation manner, the second tangent line is in the shape of an arc, and the four second tangent lines are located on the same circumference, and the circumference coincides with the center of the outer circumference of the shielding portion.

[0015] In a feasible implementation, the wall thickness of the folding section is smaller than the wall thickness of the supporting section; the wall thickness of the supporting section is smaller than the wall thickness of the telescopic section; and the wall thickness of the folding section is smaller than the wall thickness of the force-bearing section.

[0016] In a feasible embodiment, the length of the folded section is greater than the distance between the first end face on the eye mask body and the standard exit pupil position of the light leakage proof optical eye mask; the distance between the first end face on the eye mask body and the standard exit pupil position of the light leakage proof optical eye mask is greater than the distance between the second end face on the shielding portion and the third end face on the telescopic section; wherein the first end face is the end face of the eye mask body close to the human eye; the second end face is the end face of the shielding portion close to the supporting section; and the third end face is the end face of the telescopic section close to the supporting section.

[0017] In a feasible embodiment, a first inclined surface is arranged on the inner wall surface of the force-bearing section, the first inclined surface is located at one end of the force-bearing section away from the supporting section, and the first inclined surface is arranged obliquely to the axis of the eye mask body; when the eye mask body changes from a natural state to a contracted state, the angle between the first inclined surface and the plane perpendicular to the axis of the eye mask body decreases.

[0018] In a feasible implementation manner, the angle between the first inclined surface and the plane perpendicular to the axis of the eye mask body is α, and α≤15°.

[0019] In a feasible implementation, a second inclined surface is further provided on the inner wall surface of the force-bearing section, the second inclined surface is located in the middle of the force-bearing section, the first inclined surface is inclined to the axis of the eye mask body, and the second inclined surface is connected to the first inclined surface through an arc surface.

[0020] In a feasible implementation manner, the included angle between the second inclined surface and the axis of the eye mask body is β, and β≤20°.

[0021] Compared with the prior art, the light leakage-proof optical eye mask of the present application has the following beneficial effects:

[0022] The anti-light leakage optical eye mask provided in the embodiment of the present application includes an eye mask body, an exhaust hole, a shielding part, a baffle group and a plug-in part. The eye mask body includes a supporting section, a folding section, a telescopic section and a force-bearing section connected in sequence. The supporting section is used to connect the optical instrument, and the force-bearing section is used to resist the observer's eyes; when the observer does not need to use the optical eye mask and the observer does not actively apply force to the eye mask body, the eye mask body is in a natural state, and the shielding part is closed at this time, and the shielding part serves as a first layer of anti-light leakage structure; the baffle is detachably fixed to the blade through the plug-in part, and the baffle overlaps to block the cutting line. The baffle serves as a second layer of anti-light leakage structure to prevent the bright light of the optical instrument display screen from leaking from the cutting line, so as to ensure the hiding effect of the eye mask body in the natural state. When the observer needs to use the optical eye mask, the observer needs to actively apply pressure to the eye mask body to make the eye reach the standard exit pupil position of the optical eye mask. At this time, the eye mask body is deformed by the pressure and is in a compressed state. The deformation of the eye mask body drives the blades of the shielding part to flip, and the telescopic section extends into the folding section to prevent light leakage from the exhaust hole. At the same time, the baffle also flips with the blades to enable the display content of the optical instrument display screen to enter the observer's field of view. After the optical eye mask is installed on the optical instrument, full light leakage protection is achieved in both working and non-working conditions, thereby improving the concealment and safety of the optical eye mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0024] Figure 1 A schematic structural diagram of a light leakage prevention optical eye mask at a first angle according to an embodiment of the present application;

[0025] Figure 2 A schematic structural diagram of an anti-light leakage optical eye mask during compression according to an embodiment of the present application;

[0026] Figure 3 A schematic structural diagram of a light leakage prevention optical eye mask according to an embodiment of the present application at a second angle;

[0027] Figure 4 A schematic diagram of the size setting of a baffle of an anti-light leakage optical eye mask according to an embodiment of the present application;

[0028] Figure 5 A schematic structural diagram of a second angle of a baffle of an anti-light leakage optical eye mask according to an embodiment of the present application;

[0029] Figure 6 A schematic structural diagram of a cutting line of an anti-light leakage optical eye mask according to an embodiment of the present application;

[0030] Figure 7 A schematic diagram of the position setting of the shielding part of an anti-light leakage optical eye mask according to an embodiment of the present application;

[0031] Figure 8 A schematic structural diagram of a force-bearing section of an anti-light leakage optical eye mask according to an embodiment of the present application;

[0032] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names in the figure is:

[0033] 11. Eye mask body; 12. Exhaust hole; 13. Shielding part; 14. Blocking piece group; 15. Connecting part; 16. Cutting line; 17. Standard exit pupil position; 18. Mounting part; 19. First end face; 20. Second end face; 21. Third end face; 22. First inclined surface; 23. Second inclined surface;

[0034] 111, supporting section; 112, folding section; 113, telescopic section; 114, force-bearing section;

[0035] 131, blade; 141, baffle;

[0036] 161, first tangent; 162, second tangent. DETAILED DESCRIPTION

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0041] like Figures 1 to 5 As shown, according to an embodiment of the present application, an anti-light leakage optical eye mask is proposed, comprising: an eye mask body 11, an exhaust hole 12, a shielding portion 13, a baffle group 14 and an inserting portion 15; the eye mask body 11 is elastic, and the eye mask body 11 is a hollow cavity with openings at both ends, and the eye mask body 11 comprises a supporting section 111, a folding section 112, a telescopic section 113 and a force-bearing section 114; the exhaust hole 12 is arranged on the telescopic section 113, and the exhaust hole 12 is used to adjust the pressure inside the eye mask body 11 when the eye mask body 11 is deformed; the shielding portion 13 is arranged on the folding section 112 along the radial direction of the eye mask body 11 A cutting line 16 is provided on the shielding portion 13, and the cutting line 16 divides the shielding portion 13 into at least two blades 131. The blades 131 are opened when the eye mask body 11 is in a compressed state; the baffle group 14 is arranged on the folding section 112 of the shielding portion 13 away from the force-bearing section 114 along the radial direction of the eye mask body 11, and the baffle group 14 includes at least two baffles 141, and the baffles 141 overlap to block the cutting line 16; at least two plug-in parts 15 are arranged on one side of the baffle 141 close to the blade 131, and the plug-in part 15 is plug-connected with the blade 131 to fix the baffle 141 on the blade 131.

[0042] The anti-light leakage optical eye mask provided in the embodiment of the present application includes an eye mask body 11, an exhaust hole 12, a shielding portion 13, a baffle group 14 and an inserting portion 15. The eye mask body 11 includes a supporting section 111, a folding section 112, a telescopic section 113 and a force-bearing section 114 connected in sequence. The supporting section 111 is used to connect the optical instrument, and the force-bearing section 114 is used to resist the observer's eyes; when the observer does not need to use the optical eye mask, the observer does not actively apply a force to the eye mask body 11, the eye mask body 11 is in a natural state, and the shielding portion 13 is closed at this time, and the shielding portion 13 serves as a first layer of anti-light leakage structure; the baffle 141 is detachably fixed to the blade 131 through the inserting portion 15, and the baffle 141 overlaps to block the cutting line 16, and the baffle 141 serves as a second layer of anti-light leakage structure to prevent the bright light of the optical instrument display screen from leaking from the cutting line 16, so as to ensure the hiding effect of the eye mask body 11 in the natural state. When the observer needs to use the optical eye mask, the observer needs to actively apply pressure to the eye mask body 11 to make the eye reach the standard exit pupil position 17 of the optical eye mask. At this time, the eye mask body 11 is deformed by the pressure and is in a compressed state. The deformation of the eye mask body 11 drives the blades 131 of the shielding part 13 to flip, and the telescopic section 113 extends into the folding section 112 to prevent light leakage from the exhaust hole 12. At the same time, the blocking piece 141 also flips with the blade 131, so that the display content of the optical instrument display screen can enter the observer's field of view, so that after the optical eye mask is installed on the optical instrument, full light leakage protection is achieved in both working and non-working conditions, thereby improving the concealment and safety of the optical eye mask.

[0043] Furthermore, a mounting portion 18 is provided on the support section 111, and the mounting portion 18 is engaged with the optical instrument to connect the optical eye mask to the optical instrument. At this time, as long as the wearer applies pressure through the force-bearing section 114, the optical eye mask can be put into a compressed state, and the eye mask body 11 is deformed to drive the blades 131 to flip, and the blades 131 drive the baffles 141 to flip, thereby causing the baffles 141 and the blades 131 to open at the same time.

[0044] It can be understood that the standard exit pupil position 17 of the optical eye mask is located inside the eye mask body 11. The observer actively applies force to the eye mask body 11 to deform the eye mask body 11, and the telescopic section 113 moves toward the direction close to the optical instrument, so that the observer's eyes can reach the standard exit pupil position 17 of the optical eye mask. When the eye mask is compressed and folded, it will be subject to air resistance due to squeezing, and the exhaust hole 12 at the telescopic end can effectively reduce the air resistance to ensure a smooth compression process of the eye mask.

[0045] Further, such as Figure 5As shown, the baffle 141 is provided with two plug-in parts 15, and the plug-in parts 15 are plug-connected with the plug-in holes on the blade 131. The baffle 141 is limited at both ends, which can effectively improve the stability and reliability of the connection between the baffle 141 and the blade 131, prevent the baffle 141 and the blade 131 from relative displacement, and ensure that when the blade 131 is flipped open, the baffle 141 can also flip open the blade 131 in time, thereby ensuring the consistency of the movement of the baffle 141 and the blade 131.

[0046] like Figure 3 As shown, in a feasible embodiment, the cutting line 16 includes: two first tangents 161 and four second tangents 162; the first tangents 161 are arranged along the radial direction of the shielding portion 13, and the two first tangents 161 intersect to divide the shielding portion 13 into four separate blades 131; the second tangents 162 intersect with the first tangents 161, and the second tangents 162 are arranged at the end of the first tangents 161 to increase the opening angle of the root of the blade 131.

[0047] In this technical solution, two first tangents 161 are symmetrically arranged on the shielding portion 13, and the intersection of the two first tangents 161 coincides with the center point of the shielding portion 13, so as to divide the shielding portion 13 into four blades 131 of the same size; by arranging the second tangent 162 at both ends of the first tangent 161, and making the second tangent 162 intersect with the first tangent 161, so as to increase the movable range of the blade 131 through the second tangent 162, so that the blade 131 can be opened at a larger angle, thereby reducing the obstruction of the observer's field of view after the blade 131 is opened, which helps to expand the observer's field of view, reduces the total number of cutting lines 16, reduces the possibility of light leakage from the cutting lines 16, and ensures the freedom of movement of the blade 131, thereby improving the visual range of the optical eye mask.

[0048] like Figure 6 As shown, in a feasible embodiment, the baffle 141 blocks two adjacent second tangents 162; the maximum length of the baffle 141 is greater than the maximum straight-line distance between the two second tangents 162 blocked by the baffle 141; the width of the baffle 141 is greater than the radius of the shielding portion 13 to block the intersection of the two first tangents 161.

[0049] In the technical solution, the baffle set 14 includes two baffles 141, and the two baffles 141 are respectively fixed on two opposite blades 131, and one baffle 141 blocks two adjacent second tangents 162. By making the maximum length L1 of the baffle 141 greater than the maximum straight-line distance L2 between the two second tangents 162 blocked by the baffle 141, it is ensured that the baffle 141 can completely cover the two second tangents 162, thereby preventing the optical eye mask from leaking light from the second tangents 162 in a non-stressed state. The width H of the baffle 141 is greater than the radius R of the shielding portion 13, so as to ensure that the baffle 141 can cover the intersection of the two first tangents 161, thereby ensuring that the two baffles 141 can completely block the first tangent 161 after overlapping, preventing the optical eye mask from leaking light from the first tangent 161 in a non-stressed state, ensuring that when the optical eye mask is in a non-stressed state, the cutting line 16 will not leak light, and improving the anti-light leakage effect in a non-use state after the optical eye mask is installed.

[0050] like Figure 3 As shown, in a feasible implementation manner, the second tangent line 162 is in an arc shape, and the four second tangent lines 162 are located on the same circumference, and the circumference coincides with the center of the outer circumference of the shielding portion 13 .

[0051] In this technical solution, the outer edge of the shielding portion 13 is circular, the second tangent 162 is arc-shaped, the four second tangents 162 are located on the same circumference, and the center of the circle coincides with the center of the shielding portion 13, so that the shape of the edge of part of the blade 131 is similar to the shape of the outer edge of the shielding portion 13, which helps to further increase the opening angle of the blade 131, reduce the obstruction of the field of view after the blade 131 is flipped, and increase the visual range of the optical eye mask.

[0052] like Figure 1 and Figure 2 As shown, in a feasible implementation, the wall thickness of the folding section 112 is smaller than the wall thickness of the supporting section 111 ; the wall thickness of the supporting section 111 is smaller than the wall thickness of the telescopic section 113 ; and the wall thickness of the folding section 112 is smaller than the wall thickness of the force-bearing section 114 .

[0053] In this technical solution, the wall thickness of the telescopic section 113 is greater than the wall thickness of the supporting section 111 and greater than the wall thickness of the folding section 112. By making the wall thickness of the folding section 112 smaller than the wall thickness of the supporting section 111, it is ensured that the strength of the supporting section 111 is greater than the strength of the folding section 112, so that the optical eye mask is easier to compress and fold. When the optical eye mask force section 114 is subjected to a small pressure, the supporting section 111 and the folding section 112 are deformed first, so that the blade 131 is opened, and at the same time, the telescopic section 113 can move toward the direction close to the optical instrument to the blade 13 1 open position; by making the wall thickness of the telescopic section 113 greater than the wall thickness of the supporting section 111, the strength of the telescopic section 113 is ensured to be sufficient. When the force-bearing section 114 is subjected to a small thrust, the telescopic section 113 can also move to the position where the blades 131 are fully opened, and will not be compressed or blocked when the eye mask is compressed and folded, thereby ensuring the patency of the exhaust port, ensuring that the exhaust hole 12 can inhale or exhaust air in time, effectively adjusting the air pressure, reducing the air resistance during the compression and folding of the eye mask, and avoiding discomfort in the observer's eyes. By making the wall thickness of the force-bearing section 114 greater than the wall thickness of the folding section 112, the force-bearing section 114 has a certain strength during the compression and folding of the eye mask, thereby preventing the force-bearing section 114 from over-turning, ensuring the fit between the force-bearing section 114 and the observer's face, and improving the anti-light leakage effect of the eye mask.

[0054] Furthermore, the telescopic section 113 is a circular tubular structure, so that the side wall of the telescopic section 113 is parallel to the moving direction of the telescopic section 113, thereby preventing the telescopic section 113 from deforming during the movement and ensuring that the exhaust hole 12 is unobstructed. A circular arc structure is used for transition between the folding section 112 and the supporting section 111 to reduce stress concentration, so that the joint between the folding section 112 and the supporting section 111 can withstand more deformations, which helps to extend the service life of the eye mask.

[0055] like Figure 7 As shown, in a feasible embodiment, the length of the folded section 112 is greater than the distance between the first end surface 19 on the eye mask body 11 and the standard exit pupil position 17 of the light leakage proof optical eye mask; the distance between the first end surface 19 on the eye mask body 11 and the standard exit pupil position 17 of the light leakage proof optical eye mask is greater than the distance between the second end surface 20 on the shielding portion 13 and the third end surface 21 on the telescopic section 113; wherein the first end surface 19 is the end surface of the eye mask body 11 close to the human eye; the second end surface 20 is the end surface of the shielding portion 13 close to the supporting section 111; and the third end surface 21 is the end surface of the telescopic section 113 close to the supporting section 111.

[0056] In this technical solution, the length d3 of the folded section 112 is greater than the distance d2 between the first end surface 19 on the eye mask body 11 and the standard exit pupil position 17 of the light leakage-proof optical eye mask; the distance d2 between the first end surface 19 on the eye mask body 11 and the standard exit pupil position 17 of the light leakage-proof optical eye mask is greater than the distance d1 between the second end surface 20 on the shielding portion 13 and the third end surface 21 on the telescopic section 113; when the telescopic section 113 moves to the root of the blade 131, the blade 131 can be fully opened. By making d2>d1, it can be ensured that before the observer's eyes are compressed and moved forward to the standard exit pupil position 17, the telescopic section 113 of the eye mask has moved to the root of the blade 131, that is, the eye mask blade 131 is already in a fully opened state, thereby ensuring that the observer's field of view is not blocked when using the eye mask.

[0057] Furthermore, the ratio of the lengths d1:d2:d3=1:2:3.5 can ensure that when the folding section 112 is not compressed to the limit position, that is, when the folding section 112 still has compression margin, the observer's eyes can observe at the standard exit pupil position 17 without obstruction of the field of view.

[0058] like Figure 8 As shown, in a feasible embodiment, a first inclined surface 22 is arranged on the inner wall surface of the force-bearing section 114, the first inclined surface 22 is located at the end of the force-bearing section 114 away from the supporting section 111, and the first inclined surface 22 is arranged obliquely to the axis of the eye mask body 11; when the eye mask body 11 changes from a natural state to a contracted state, the angle between the first inclined surface 22 and the plane perpendicular to the axis of the eye mask body 11 decreases.

[0059] In this technical solution, the first inclined surface 22 of the force-bearing section 114 is used to contact the observer's face. When the force-bearing section 114 is subjected to the force actively applied by the observer, the first inclined surface 22 flips outward, so that the end of the eye mask is closer to the plane. When the observer uses the eye mask, the fit between the observer's face and the eye mask can be effectively improved, that is, the interference from external light is blocked, and the light of the optical instrument can be prevented from being exposed, thereby improving the anti-light leakage effect of the eye mask.

[0060] like Figure 8 As shown, in a feasible implementation manner, the angle between the first inclined surface 22 and the plane perpendicular to the axis of the eye mask body 11 is α, and α≤15°.

[0061] In this technical solution, after the force-bearing section 114 is subjected to the pressure actively applied by the observer, the first inclined surface 22 flips outward, and the α value gradually decreases; by making α≤15°, when the observer's eyes reach the standard exit pupil position 17, the first inclined surface 22 can flip to a position perpendicular to the axis of the eye mask body 11, so as to improve the fit between the observer's face and the force-bearing section 114, and ensure the anti-light leakage effect.

[0062] like Figure 8 As shown, in a feasible implementation manner, a second inclined surface 23 is further provided on the inner wall surface of the force-bearing section 114, the second inclined surface 23 is located in the middle of the force-bearing section 114, the first inclined surface 22 is inclined to the axis of the eye mask body 11, and the second inclined surface 23 is connected to the first inclined surface 22 through an arc surface.

[0063] In this technical solution, the first inclined surface 22 and the second inclined surface 23 are connected by a circular arc segment in a smooth transition, which reduces concentrated force. The circular arc segment can be used to buffer and decompose external forces, and the second inclined surface 23 can be used to ensure the strength of the force-bearing section 114, thereby avoiding excessive flipping of the force-bearing section 114 during the compression of the eye mask, ensuring that the observer's eyes do not exceed the standard exit pupil position 17, ensuring the accuracy of aiming and measurement after using the eye mask, and improving the human-machine efficiency.

[0064] like Figure 8 As shown, in a feasible implementation manner, the angle between the second inclined surface 23 and the axis of the eye mask body 11 is β, β≤20°.

[0065] In this technical solution, the angle between the second inclined surface 23 and the axis of the eye mask body 11 is β. By making β≤20°, the angle between the second inclined surface 23 and the axis of the eye mask body 11 is smaller, which can effectively reduce the tendency of the force-bearing section 114 to over-flip after being stressed, thereby ensuring the overall structural strength of the force-bearing section 114.

[0066] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An optical eye mask to prevent light leakage, characterized in that: The anti-light leakage optical eye mask comprises: An eye mask body, wherein the eye mask body is elastic and is a hollow cavity with openings at both ends, and the eye mask body comprises a supporting section, a folding section, a telescopic section and a force-bearing section; An exhaust hole, the exhaust hole being arranged on the telescopic section, and the exhaust hole being used to adjust the pressure inside the eye mask body when the eye mask body is deformed; A shielding portion, the shielding portion is arranged on the folding section along the radial direction of the eye mask body, a cutting line is arranged on the shielding portion, the cutting line divides the shielding portion into at least two leaves, and the leaves are opened when the eye mask body is in a compressed state; A baffle set, the baffle set is arranged on the folded section of the shielding portion away from the force-bearing section along the radial direction of the eye mask body, the baffle set includes at least two baffles, and the baffles overlap to block the cutting line; The plug-in parts, at least two of which are arranged on one side of the baffle close to the blade, are plug-connected with the blade to fix the baffle on the blade.

2. The anti-light leakage optical eye mask according to claim 1, characterized in that: The cutting line comprises: Two first tangent lines, wherein the first tangent lines are arranged along the radial direction of the shielding portion, and the two first tangent lines intersect to divide the shielding portion into four blades separated from each other; Four second tangent lines intersect the first tangent lines, and the second tangent lines are arranged at ends of the first tangent lines to increase an opening angle of a root of the blade.

3. The light leakage preventing optical eye mask according to claim 2, characterized in that: The blocking piece blocks two adjacent second tangent lines; The maximum length of the baffle is greater than the maximum straight-line distance between two second tangents blocked by the baffle; The width of the blocking piece is greater than the radius of the shielding portion so as to shield the intersection of the two first tangent lines.

4. The light leakage preventing optical eye mask according to claim 2, characterized in that: The second tangent line is in an arc shape, and the four second tangent lines are located on the same circumference, and the circumference coincides with the center of the outer circumference of the shielding portion.

5. The light leakage preventing optical eye mask according to claim 1, characterized in that: The wall thickness of the folding section is smaller than the wall thickness of the supporting section; The wall thickness of the supporting section is smaller than the wall thickness of the telescopic section; The wall thickness of the folded section is smaller than the wall thickness of the stress-bearing section.

6. The light leakage preventing optical eye mask according to claim 1, characterized in that: The length of the folded section is greater than the distance between the first end surface of the eye mask body and the standard exit pupil position of the light leakage-proof optical eye mask; The distance between the first end surface on the eye mask body and the standard exit pupil position of the light leakage-proof optical eye mask is greater than the distance between the second end surface on the shielding portion and the third end surface on the telescopic section; Among them, the first end face is the end face of the eye mask body close to the human eye; the second end face is the end face of the shielding part close to the supporting section; and the third end face is the end face of the telescopic section close to the supporting section.

7. The light leakage preventing optical eye mask according to claim 1, characterized in that: A first inclined surface is arranged on the inner wall surface of the force-bearing section, and the first inclined surface is located at one end of the force-bearing section away from the supporting section. The first inclined surface is arranged obliquely to the axis of the eye mask body; when the eye mask body changes from a natural state to a contracted state, the angle between the first inclined surface and the plane perpendicular to the axis of the eye mask body decreases.

8. The light leakage preventing optical eye mask according to claim 7, characterized in that: The angle between the first inclined surface and the plane perpendicular to the axis of the eye mask body is α, and α≤15°.

9. The light leakage preventing optical eye mask according to claim 8, characterized in that: A second inclined surface is also arranged on the inner wall surface of the force-bearing section, the second inclined surface is located in the middle of the force-bearing section, the first inclined surface is arranged obliquely to the axis of the eye mask body, and the second inclined surface is connected to the first inclined surface through an arc surface.

10. The light leakage preventing optical eye mask according to claim 9, characterized in that: The included angle between the second inclined surface and the axis of the eye mask body is β, β≤20°.

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