CN219625783U

CN219625783U - Adjustable optical lens

Info

Publication number: CN219625783U
Application number: CN202320838669.2U
Authority: CN
Inventors: 邓春伟; 肖正生; 李阳; 邹渊
Original assignee: Fujian Holbit Technology Co ltd
Current assignee: Fujian Holbit Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-09-01
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses an adjustable optical lens, which structurally comprises: the lens mechanism is fixed inside the lens bracket, and slides along the first guide rail, the second guide rail and the third guide rail, so that the lens mechanism is adjusted to be above the lens bracket according to different test requirements to carry out single or multiple lens combination tests, and the lens is prevented from falling down or losing in the process of changing lenses.

Description

Adjustable optical lens

Technical Field

The utility model relates to an adjustable optical lens, and belongs to the technical field of optical lenses.

Background

The lens is made according to the refraction rule of light, the lens is a refractive mirror, the refractive surface of the lens is two spherical surfaces or a transparent body with one spherical surface and one plane, the imaging of the lens is provided with a real image and a virtual image, and in order to facilitate understanding, a teacher uses an optical test device for teaching;

the patent number is: the patent document of CN207946968U discloses a combined light mirror teaching device for university physics experiments, which comprises a base, the right side wall of base is provided with the slider and stores the drawer, the front side wall of base is provided with the lens and stores the drawer, the inner chamber bottom of lens stores the drawer has seted up the protection groove, the top of base is provided with fixing base and slide rail, and the fixing base is located the left side of slide rail, the top of fixing base is provided with planer-type support, the top spiro union of planer-type support has the threaded rod, and the bottom of threaded rod runs through planer-type support, the bottom of threaded rod is provided with the light source lamp;

the following disadvantages still exist in the practical application process: when the existing optical test device is used, the optical lens is detachably mounted, when different lens tests are replaced, the existing lens is required to be taken down and put into the lens storage drawer, then the required lens is taken out and mounted in the lens seat, and the optical lens is easy to drop, damage or lose due to frequent taking out and putting.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an adjustable optical lens so as to solve the problems that when the traditional optical test device is used, the optical lens is detachably mounted, when different lens tests are replaced, the traditional lens is required to be taken down and put into a lens storage drawer, and then the required lens is taken out and mounted in a lens seat, and the optical lens is easy to drop, damage or lose due to frequent taking and putting.

In order to achieve the above object, the present utility model is realized by the following technical scheme: an adjustable optical lens, the structure of which comprises: the lens group comprises a lens support and a plurality of lens mechanisms, a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are used for enabling the lens mechanisms to slide along the length direction of the fixed support, a third guide rail is formed on the side wall of the lens support, the two ends of the third guide rail are respectively connected with the midpoint of the first guide rail and the midpoint of the second guide rail, and the lens mechanisms are switched between the first guide rail and the second guide rail through the third guide rail.

Preferably, the lens mechanism comprises a lens frame body and a lens body arranged on the lens frame body, and the lens frame body is provided with a sliding block matched with the first guide rail, the second guide rail and the third guide rail.

Preferably, the third guide rail is of a semicircular arc structure, a limiting strip is arranged on the inner side of the third guide rail, and a guide chute corresponding to the limiting strip is arranged on the inner side of the sliding block.

Preferably, the bottom of the lens support is provided with an integrally formed protective cover, a containing cavity for containing a plurality of lens mechanisms is formed in the protective cover, and the protective cover and the lens support are provided with openings for the lens mechanisms to slide along the third guide rail.

Preferably, the lens frame body side wall is provided with a driving handle, and the protective cover is formed with a fourth guide rail for the driving handle to slide along the length direction of the second guide rail.

Preferably, compression springs are respectively arranged at two ends of the accommodating cavity, and a compression plate is arranged at one end, close to the lens mechanism, of each compression spring.

Preferably, the left and right ends of the slider protrude from the left and right ends of the lens frame body, respectively.

Preferably, a scale is arranged on one side of the first guide rail.

Preferably, the bottom of the lens support is provided with a base sliding along the length direction of the fixed support.

Advantageous effects

The adjustable optical lens has the following effects:

according to the utility model, the lens support is combined with the lens mechanism, the lens mechanism is fixed in the lens support and slides along the first guide rail, the second guide rail and the third guide rail, so that the corresponding lens mechanism is adjusted to the position above the lens support according to different test requirements to carry out single or multiple lens combination tests, and the lens is prevented from falling, damaging or losing in the process of replacing the lens.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of an adjustable optical lens according to the present utility model;

FIG. 2 is a schematic view of a lens holder and a lens mechanism according to the present utility model;

FIG. 3 is a schematic view of a lens mechanism according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B according to the present utility model;

FIG. 5 is a schematic cross-sectional view of a lens holder of the present utility model;

FIG. 6 is a schematic diagram of the structure of A-A of FIG. 1 according to the present utility model;

FIG. 7 is a schematic view of the structure of FIG. 6C according to the present utility model;

FIG. 8 is a schematic view of a left-hand cross-section of a lens holder according to the present utility model;

fig. 9 is a schematic diagram showing the upward rotation of the lens mechanism according to the present utility model.

In the figure: the projection device comprises a fixed support-1, a projection component-2, a light source component-3, a lens group-4, a lens support-41, a first guide rail-411, a second guide rail-412, a third guide rail-413, a limit bar-414, a protective cover-415, a containing cavity-416, a fourth guide rail-417, a compression spring-418, a compression plate-419, a lens mechanism-42, a lens frame body-421, a lens body-422, a slide block-423, a guide chute-424, a driving handle-425 and a base-43.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-5, the present utility model provides an adjustable optical lens technical scheme: the structure comprises: the projection device comprises a fixed support 1, wherein one end of the fixed support 1 is connected with a projection assembly 2 in a sliding manner, the other end of the fixed support 1 is connected with a light source assembly 3 in a sliding manner, a lens group 4 sliding on the fixed support 1 is arranged between the projection assembly 2 and the light source assembly 3, the lens group 4 comprises a lens support 41 and a plurality of lens mechanisms 42, a first guide rail 411 and a second guide rail 412 for the lens mechanisms 42 to slide along the length direction of the fixed support 1 are respectively arranged at the upper end and the lower end of the lens support 41, a third guide rail 413 with two ends respectively connected with the midpoint of the first guide rail 411 and the midpoint of the second guide rail 412 is formed on the side wall of the lens support 41, and the lens mechanisms 42 are switched between the first guide rail 411 and the second guide rail 412 through the third guide rail 413;

when the conventional optical test device is used, the optical lenses are detachably mounted, when different lenses are replaced, the conventional lenses are required to be taken down and put into the lens storage drawer, then the required lenses are taken out and put into the lens seat, and the optical lenses are easy to drop and damage or lose due to frequent taking and putting, so that when the conventional optical test device is used by combining the lens support 41 with the lens mechanisms 42, all the required lens mechanisms 42 are firstly placed in the second guide rail 412, the required lens mechanisms 42 slide to the lower end of the third guide rail 413 along the second guide rail 412, then slide to the top end along the third guide rail 413 and slide into the first guide rail 411, the lens mechanisms 42 are driven to slide along the first guide rail 411, so that the focal length of the lens mechanisms 42 can be adjusted according to test requirements, and simultaneously, the two different lens mechanisms 42 can be simultaneously rotated to the first guide rail 411, so that the two lens mechanisms 42 are subjected to combined test, therefore, the lens mechanisms 42 are combined and the lenses are prevented from being damaged or lost due to the fact that the corresponding lens mechanisms are combined and tested by sliding along the first guide rail 411, the second guide rail 412 and the third guide rail 413.

The lenses of the lens mechanisms 42 are different types of lenses, specifically, biconvex, plano-convex, concave-convex, biconcave, plano-concave, convex-concave and the like, so that the test of the different types of lenses is facilitated.

As shown in fig. 3-6, the lens mechanism 42 includes a lens frame body 421 and a lens body 422 mounted on the lens frame body 421, the lens frame body 421 is provided with a slide block 423 that cooperates with the first rail 411, the second rail 412 and the third rail 413, and when in use, the slide block 423 that drives the lens frame body 421 slides along the first rail 411, the second rail 412 and the third rail 413, so that the corresponding lens mechanism 42 is adjusted to above the lens frame 41 according to different test requirements for single or multiple combined tests.

As shown in fig. 5-7, the third guide rail 413 has a semicircular arc structure, a limit bar 414 is disposed on the inner side of the third guide rail 413, and a guide chute 424 corresponding to the limit bar 414 is disposed on the inner side of the slide block 423.

As shown in fig. 5, the bottom of the lens holder 41 has an integrally formed protective cover 415, and the protective cover 415 has a receiving cavity 416 for receiving a plurality of lens mechanisms 42 therein, so that when the lens mechanisms 42 are not in use, they are placed in the receiving cavity 416, thereby protecting the lens body 422 and preventing the lens body 422 from being damaged due to collision of foreign matters with the lens body 422;

meanwhile, the protective cover 415 and the lens holder 41 are provided with openings for sliding the lens mechanism 42 along the third rail 413, and in use, the lens mechanism 42 is flipped up to the first rail 411 through the openings.

As shown in fig. 2-3, the side wall of the lens frame body 421 is provided with a driving handle 425, so that the lens frame body 421 is conveniently driven to slide in the first guide rail 411, the second guide rail 412 and the third guide rail 413 by the driving handle 425 during use;

the protective cover 415 is formed with a fourth rail 417 for sliding the driving handle 425 along the length direction of the second rail 412, so that the driving handle 425 slides along the fourth rail 417 when the lens mechanism 42 slides along the second rail 412.

As shown in fig. 8, two ends of the accommodating cavity 416 are respectively provided with a pressing spring 418, and one end of the pressing spring 418, which is close to the lens mechanism 42, is provided with a pressing plate 419, so that the pressing springs 418 on two sides push the pressing plate 419 to move towards the lens mechanism 42 and attach to the side surface of the lens mechanism 42, so that when the lens mechanism 42 is not in use, the adjacent lens mechanisms 42 are kept attached and fixed in the accommodating cavity 416, and the lens mechanism 42 is prevented from shaking and colliding in the accommodating cavity 416.

As shown in fig. 3-4, the left and right ends of the slider 423 protrude from the left and right ends of the lens frame 421, so that when the adjacent lens mechanisms 42 are attached, a certain gap is provided between the lens frames 421, so as to prevent the lens bodies 422 of the adjacent two lens frames 421 from collision or friction, and protect the lens bodies 422.

As shown in fig. 2, a scale is disposed on one side of the first guide 411, so as to observe the distance between the adjacent lens mechanisms 42 during the test of the plurality of lens mechanisms 42.

As shown in fig. 1, a base 43 sliding along the length direction of the fixed support 1 is provided at the bottom of the lens support 41, so that the lens support 41 is driven by the base 43 to slide and adjust on the fixed support 1.

The foregoing has described only the basic principles and preferred embodiments of the present utility model, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present utility model.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An adjustable optical lens, the structure of which comprises: fixed bolster (1), fixed bolster (1) one end sliding connection has projection assembly (2), and the other end sliding connection has light source module (3), its characterized in that: the projection module is characterized in that a lens group (4) sliding on the fixed support (1) is arranged between the projection module (2) and the light source module (3), the lens group (4) comprises a lens support (41) and a plurality of lens mechanisms (42), a first guide rail (411) and a second guide rail (412) for the lens mechanisms (42) to slide along the length direction of the fixed support (1) are respectively arranged at the upper end and the lower end of the lens support (41), a third guide rail (413) with two ends respectively connected with the midpoint of the first guide rail (411) and the midpoint of the second guide rail (412) is formed on the side wall of the lens support (41), and the lens mechanisms (42) are switched between the first guide rail (411) and the second guide rail (412) through the third guide rail (413).

2. A tunable optical lens according to claim 1, wherein: the lens mechanism (42) comprises a lens frame body (421) and a lens body (422) arranged on the lens frame body (421), wherein the lens frame body (421) is provided with a sliding block (423) matched with the first guide rail (411), the second guide rail (412) and the third guide rail (413).

3. A tunable optical lens according to claim 2, wherein: the third guide rail (413) is of a semicircular arc structure, a limit bar (414) is arranged on the inner side of the third guide rail (413), and a guide chute (424) corresponding to the limit bar (414) is arranged on the inner side of the sliding block (423).

4. A tunable optical lens according to claim 3, wherein: the bottom of the lens support (41) is provided with an integrally formed protective cover (415), a containing cavity (416) for containing a plurality of lens mechanisms (42) is formed in the protective cover (415), and the protective cover (415) and the lens support (41) are provided with openings for the lens mechanisms (42) to slide along the third guide rail (413).

5. An adjustable optical lens as recited in claim 4, wherein: the side wall of the lens frame body (421) is provided with a driving handle (425), and the protective cover (415) is provided with a fourth guide rail (417) for enabling the driving handle (425) to slide along the length direction of the second guide rail (412).

6. An adjustable optical lens as recited in claim 5, wherein: compression springs (418) are respectively arranged at two ends of the accommodating cavity (416), and a compression plate (419) is arranged at one end, close to the lens mechanism (42), of each compression spring (418).

7. An adjustable optical lens as recited in claim 4, wherein: the left and right ends of the slide block (423) respectively protrude from the left and right ends of the lens frame body (421).

8. A tunable optical lens according to claim 1, wherein: one side of the first guide rail (411) is provided with a graduated scale.

9. A tunable optical lens according to claim 1, wherein: the bottom of the lens support (41) is provided with a base (43) sliding along the length direction of the fixed support (1).