Multi-focus optical lens

Abstract

The utility model relates to the technical field of optical lenses, in particular to a multi-focus optical lens which comprises a multi-focus lens body, a protective cover is arranged on the outer side of the multi-focus lens body, a shell is connected to the bottom end of the protective cover in a threaded mode, first sealing rings are fixed in the protective cover and the shell, and second sealing rings are fixed in the shell. The multi-focus lens body is located between the two first sealing rings, a first check block is integrally formed on the outer wall of the protective cover, a connecting block is arranged in the first check block, an inserting block is integrally formed on the side, away from the protective cover, of the connecting block, and a second check block is integrally formed on the outer wall of the shell. The second check block is provided with an inserting groove matched with the inserting block, a pressing rod is arranged above the inserting block, the pressing rod is sleeved with a spring, and the end, close to the protective cover, of the pressing rod penetrates through the first check block and is connected with the connecting block; the connecting structure is convenient to disassemble and favorable for subsequent installation.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to a multi-focal optical lens. Background Art

[0002] A lens is an optical element made of transparent material with a surface that is part of a spherical surface. Types of lenses include silicone lenses, PMMA lenses, PC lenses, glass lenses, sealed quantum dot lenses, etc. A lens head is composed of several lenses, and there are two types: plastic lenses and glass lenses. Glass lenses are more expensive than plastic lenses. Multifocal optical lenses are diffraction optical elements that can focus the incident light irradiated on different areas of the sample separately, and simultaneously obtain multiple focal points with equal energy and equal spacing in the axial propagation direction. When installing, the multifocal optical lens is usually fixed to the structure used to support the multifocal optical lens using bolts or adhesives. The installed multifocal optical lens is not easy to disassemble quickly, and the subsequent installation is also more troublesome, which reduces the efficiency of assembly. Therefore, a multifocal optical lens is proposed to facilitate disassembly and subsequent installation. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a multi-focal optical lens.

[0004] The technical solution adopted by the utility model to solve its technical problems is a multifocal optical lens, comprising a multifocal lens body, a protective cover is provided on the outside of the multifocal lens body, the bottom end of the protective cover is threadedly connected to the shell, a first sealing ring is fixed in the protective cover and the shell, the multifocal lens body is located between the two first sealing rings, a first stopper is integrally formed on the outer wall of the protective cover, a connecting block is provided in the first stopper, an insert block is integrally formed on the side of the connecting block away from the protective cover, a second stopper is integrally formed on the outer wall of the shell, a slot adapted to the insert block is provided on the second stopper, a pressure rod is provided above the insert block, a spring is sleeved on the pressure rod, and the end of the pressure rod close to the protective cover passes through the first stopper and is connected to the connecting block.

[0005] By adopting the above technical solution, the setting of the protective cover, the first sealing ring and the outer shell can support and protect the multifocal lens body. If the multifocal lens body needs to be removed for maintenance or replacement, it is only necessary to press the pressure rod, and the pressure rod drives the connecting block to move toward the protective cover, and the plug block moves accordingly, and the plug block disengages from the slot on the second block. The protective cover can be rotated to remove the protective cover together with the first sealing ring fixed in the protective cover, which is convenient for removing, maintaining or replacing the multifocal lens body. During installation, the multifocal lens body is placed in the outer shell, the pressure rod is pressed, the protective cover is placed on the outer shell and rotated in the opposite direction, the pressure rod is released, and the spring pushes the pressure rod away from the protective cover, and the plug block is inserted into the slot on the second block, which can prevent the protective cover from loosening. At this time, the two first sealing rings are close to the multifocal lens body, which is convenient for fixing the multifocal lens body.

[0006] Specifically, a flange is integrally formed at the bottom end of the shell, and a plurality of mounting holes are formed on the flange.

[0007] By adopting the above technical solution and arranging the flange and the mounting holes, it is convenient to fix the housing in a suitable position by means of bolts.

[0008] Specifically, a second sealing ring is fixed to the top of the shell, and the top of the second sealing ring abuts against the inner wall of the protective cover.

[0009] By adopting the above technical solution and providing the second sealing ring, the sealing between the housing and the protective cover can be improved.

[0010] Specifically, a plurality of anti-slip protrusions are integrally formed on a side of the pressure rod away from the connecting block.

[0011] By adopting the above technical solution, the provision of the anti-slip protrusion is conducive to pressing the pressure rod.

[0012] Specifically, the outer wall of the protective cover is provided with a plurality of anti-slip grooves.

[0013] By adopting the above technical solution, the provision of the anti-slip grooves facilitates the gripping and rotation of the protective cover.

[0014] Beneficial effects of the utility model:

[0015] (1) The multifocal optical lens described in the present invention, the setting of the protective cover, the first sealing ring and the outer shell can support and protect the multifocal lens body. If the multifocal lens body needs to be removed for maintenance or replacement, it is only necessary to press the pressure rod, and the pressure rod drives the connecting block to move toward the protective cover, and the plug block moves accordingly, and the plug block is disengaged from the slot on the second block. The protective cover can be rotated to remove the protective cover together with the first sealing ring fixed in the protective cover, which is convenient for removing, maintaining or replacing the multifocal lens body. During installation, the multifocal lens body is placed in the outer shell, the pressure rod is pressed, the protective cover is placed on the outer shell and rotated in the opposite direction, the pressure rod is released, and the spring pushes the pressure rod away from the protective cover, and the plug block is inserted into the slot on the second block, which can prevent the protective cover from loosening. At this time, the two first sealing rings are close to the multifocal lens body, which is convenient for fixing the multifocal lens body.

[0016] (2) The multifocal optical lens described in the present invention has flanges and mounting holes that facilitate fixing the housing in a suitable position using bolts. The anti-slip protrusions facilitate pressing the pressure rod, and the anti-slip grooves facilitate gripping and rotating the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 This is a schematic structural diagram of the connection block, spring, pressure rod and insert block of the utility model;

[0021] Figure 4 This is a cross-sectional view of the combination of the protective cover and the shell of the present invention.

[0022] In the figure: 1. multifocal lens body; 2. protective cover; 3. first sealing ring; 4. outer shell; 5. flange; 6. second sealing ring; 7. first stopper; 8. connecting block; 9. spring; 10. pressure rod; 11. insert block; 12. second stopper; 13. anti-slip protrusion. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In order to facilitate disassembly and subsequent installation, as an embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 As shown, the multifocal optical lens described in the present invention includes a multifocal lens body 1, a protective cover 2 is provided on the outside of the multifocal lens body 1, the bottom end of the protective cover 2 is threadedly connected to the shell 4, and a first sealing ring 3 is fixed to the protective cover 2 and the shell 4 by an adhesive, and the multifocal lens body 1 is located between the two first sealing rings 3, and a first stopper 7 is integrally formed on the outer wall of the protective cover 2, a connecting block 8 is provided in the first stopper 7, and an insert block 11 is integrally formed on the side of the connecting block 8 away from the protective cover 2, and a second stopper 12 is integrally formed on the outer wall of the shell 4, and a slot adapted to the insert block 11 is provided on the second stopper 12, and a pressure rod 10 is provided above the insert block 11, and a spring 9 is sleeved on the pressure rod 10, and the end of the pressure rod 10 close to the protective cover 2 passes through the first stopper 7 and is connected to the connecting block 8 by an adhesive.

[0025] The first sealing ring 3 is inserted into the slot on the second stopper 12 to prevent the protective cover 2 from loosening. At this time, the two first sealing rings 3 are tightly against the multifocal lens body 1, which is convenient for fixing the multifocal lens body 1.

[0026] In order to facilitate the installation of the housing 4, for example, Figure 1 As shown, a flange 5 is integrally formed at the bottom end of the housing 4 , and a plurality of mounting holes are formed on the flange 5 .

[0027] In order to improve the sealing performance, for example, Figure 4 As shown, a second sealing ring 6 is fixed to the top of the housing 4 by adhesive, and the top of the second sealing ring 6 abuts against the inner wall of the protective cover 2.

[0028] In order to facilitate pressing the pressure rod 10, for example, Figure 3 As shown, a plurality of anti-slip protrusions 13 are integrally formed on the side of the pressure rod 10 away from the connecting block 8 .

[0029] In order to facilitate holding and rotating the protective cover 2, for example, Figure 1 As shown, the outer wall of the protective cover 2 is provided with a plurality of anti-slip grooves.

[0030] When the utility model is in use, the end of the bolt is passed through the mounting hole on the flange 5, and the housing 4 is conveniently fixed in a suitable position by the bolt. The arrangement of the protective cover 2, the first sealing ring 3, the second sealing ring 6, and the housing 4 can support and protect the multifocal lens body 1;

[0031] If the multifocal lens body 1 needs to be removed for maintenance or replacement, the pressure rod 10 is pressed by hand. The pressure rod 10 drives the connecting block 8 to move toward the protective cover 2, and the insert block 11 moves accordingly. The insert block 11 is disengaged from the slot on the second stopper 12. The protective cover 2 can be rotated to remove the protective cover 2 together with the first sealing ring 3 fixed in the protective cover 2, which facilitates the removal of the multifocal lens body 1 for maintenance or replacement.

[0032] During installation, place the multifocal lens body 1 in the housing 4, press the pressure rod 10, place the protective cover 2 on the housing 4 and rotate it in the opposite direction, release the pressure rod 10, and the spring 9 pushes the pressure rod 10 to move away from the protective cover 2. The insert block 11 is inserted into the slot on the second stop block 12 to prevent the protective cover 2 from loosening. At this time, the two first sealing rings 3 are tightly attached to the multifocal lens body 1, which facilitates the fixation of the multifocal lens body 1.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions in the specification are only for the purpose of illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and such changes and improvements fall within the scope of protection claimed by the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents. Any matters not described in detail in the present invention belong to the prior art known to those skilled in the art.

Claims

1. A multifocal optical lens, characterized in that: The invention comprises a multifocal lens body (1), wherein a protective cover (2) is provided on the outside of the multifocal lens body (1), the bottom end of the protective cover (2) is threadedly connected to a shell (4), a first sealing ring (3) is fixed in the protective cover (2) and the shell (4), the multifocal lens body (1) is located between two first sealing rings (3), a first stopper (7) is integrally formed on the outer wall of the protective cover (2), a connecting block (8) is provided in the first stopper (7), an inserting block (11) is integrally formed on the side of the connecting block (8) away from the protective cover (2), a second stopper (12) is integrally formed on the outer wall of the shell (4), a slot adapted to the inserting block (11) is provided on the second stopper (12), a pressure rod (10) is provided above the inserting block (11), a spring (9) is sleeved on the pressure rod (10), and the end of the pressure rod (10) close to the protective cover (2) passes through the first stopper (7) and is connected to the connecting block (8).

2. The multifocal optical lens according to claim 1, characterized in that: A flange (5) is integrally formed at the bottom end of the housing (4), and a plurality of mounting holes are provided on the flange (5).

3. The multifocal optical lens according to claim 1, characterized in that: A second sealing ring (6) is fixed to the top end of the housing (4), and the top end of the second sealing ring (6) abuts against the inner wall of the protective cover (2).

4. The multifocal optical lens according to claim 1, characterized in that: A plurality of anti-slip protrusions (13) are integrally formed on the side of the pressure rod (10) away from the connecting block (8).

5. The multifocal optical lens according to claim 1, characterized in that: The outer wall of the protective cover (2) is provided with a plurality of anti-slip grooves.

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