Hand-held microscope with interchangeable objective for children

Abstract

The utility model discloses a handheld microscope for children with replaceable objective lens magnification, including shell, eyepiece subassembly, objective lens subassembly, transparent cover, LED light source subassembly and battery subassembly, and battery subassembly is installed in the shell cavity and provides power supply for LED light source subassembly, the light guide sleeve is installed in the just below of eyepiece subassembly, and the front section of light guide sleeve has a light guide hole, the objective lens subassembly includes the first objective lens lens, second objective lens lens, third objective lens lens and carousel that can switch, first objective lens lens, second objective lens lens and third objective lens lens have different magnification respectively, and the carousel rotatable installation is below light guide sleeve, when rotating carousel makes first objective lens lens, second objective lens lens, third objective lens lens one of three aligns light guide hole, thereby realizes the function of replacing objective lens magnification, it is more perfect in function, can switch different objective lens lens quickly, can adapt to different application environment.

Description

Technical Field

[0001] This utility model relates to a handheld microscope for children with interchangeable objective lenses and magnification. Background Technology

[0002] Microscopes, as essential optical tools for observing the microscopic world, are mostly laboratory supplies. Due to their high cost, they are not easily accessible to children. To provide early childhood education, various children's microscopes have appeared on the market. For specific structures, please refer to patent number CN202120718156, patent name: Utility Model of an Assembly Structure for a DIY Microscope.

[0003] Currently, handheld microscopes for children have an integrated structure where the eyepiece and objective lens components are mounted in a single housing. The objective lens component is unique and cannot be replaced. The objective lens components offer magnifications of 40-135x, 150-350x, or 20-55x. Users can only choose one of these three different magnifications, which causes significant inconvenience. Different applications require different objective lens magnifications, forcing users to either purchase three microscopes with objective lens components of 40-135x, 150-350x, or 20-55x magnifications respectively to meet their needs. However, this increases purchase costs and is inconvenient to use. Summary of the Invention

[0004] This invention provides a handheld microscope for children with interchangeable objective lenses and magnification, which solves the technical problem that existing handheld microscopes for children have only one objective lens that cannot be replaced, and the magnification range is also fixed, making them unable to adapt to different application environments.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A handheld, child-friendly microscope with interchangeable objective lenses and magnification includes:

[0007] A shell, which is composed of a left shell and a right shell, forming a cavity between the left shell and the right shell, and the eyepiece assembly and objective lens assembly are installed in the cavity;

[0008] A transparent cover is installed at the bottom of the outer casing;

[0009] An LED light source assembly, located inside a transparent cover, is used to illuminate the specimen on the glass slide;

[0010] A battery assembly, installed inside the cavity, provides power to the LED light source assembly;

[0011] Its characteristic feature is that a light guide sleeve is installed directly below the eyepiece assembly, and the front end of the light guide sleeve has a light guide hole;

[0012] The objective lens assembly includes a switchable first objective lens, a second objective lens, a third objective lens, and a turntable; the first objective lens, the second objective lens, and the third objective lens each have different magnifications, and the first objective lens, the second objective lens, and the third objective lens are circumferentially spaced at different angle positions on the front end of a turntable, and the turntable is rotatably mounted below the light guide sleeve.

[0013] By rotating the turntable to align one of the first, second, or third objective lenses with the light guide hole, the magnification of the objective lens can be changed.

[0014] Preferably, a rotating seat is provided next to the light guide hole, and a rotating shaft protrudes from the rear end of the turntable. A screw hole is provided on the end face of the rotating shaft. The rotating shaft is nested in the central hole of the rotating seat, and a screw is screwed into the screw hole to form a rotatable connection between the light guide sleeve and the turntable.

[0015] Preferably, the turntable is fitted inside a multiplier adjustment ring, which is rotatably mounted on the outer casing.

[0016] Preferably, there are locking blocks on both sides of the turntable, and a locking groove is provided on the side wall of the multiplier adjustment ring. The locking blocks are nested in the locking groove so that rotating the multiplier adjustment ring can drive the turntable to rotate.

[0017] Preferably, a diopter adjustment ring is also installed on the housing, which is used to adjust the program lens assembly.

[0018] Preferably, the outer side of the multiplier adjustment ring has a protruding actuating protrusion.

[0019] Preferably, the first objective lens has a magnification of 40-135x, the second objective lens has a magnification of 150-350x, and the third objective lens has a magnification of 20-55x.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] 1. The objective lens assembly of this utility model includes a switchable first objective lens, a second objective lens, a third objective lens, and a turntable. The first, second, and third objective lenses each have different magnifications. They are circumferentially spaced at different angles on the front end of a turntable, which is rotatably mounted below a light guide sleeve. Rotating the turntable aligns one of the three objective lenses with the light guide aperture, thereby enabling the changing of the objective lens magnification. This design provides a more complete functionality and adaptability to different application environments.

[0022] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached Figure Description

[0023] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0024] Figure 2 This is a perspective view of another embodiment of the present utility model;

[0025] Figure 3 This is a bottom view of an embodiment of the present utility model;

[0026] Figure 4 for Figure 3 AA section view;

[0027] Figure 5 yes Figure 4 Enlarged view of part C in the middle;

[0028] Figure 6 This is an exploded view of the present invention;

[0029] Figure 7 This is a partial exploded view of the present invention;

[0030] Figure 8 yes Figure 3 BB cross-sectional view. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] like Figures 1 to 8 As shown, this embodiment provides a handheld microscope for children with interchangeable objective lenses and magnification, including:

[0033] A housing 1 is formed by splicing a left housing 11 and a right housing 12, with a cavity 13 formed between the left housing 11 and the right housing 12. The eyepiece assembly 2 and the objective lens assembly 3 are installed in the cavity 13.

[0034] A transparent cover 4 is installed at the bottom of the outer casing 1;

[0035] An LED light source assembly 5 is located inside a transparent cover 4 and is used to illuminate the specimen on the glass slide;

[0036] A battery assembly 6 is installed inside the cavity 13 to provide power to the LED light source assembly 5;

[0037] The feature is that a light guide sleeve 7 is installed directly below the eyepiece assembly 2, and the front end of the light guide sleeve 7 has a light guide hole 71;

[0038] The objective lens assembly 3 includes a switchable first objective lens 31, a second objective lens 32, a third objective lens 33, and a turntable 8; the first objective lens 31, the second objective lens 32, and the third objective lens 33 each have different magnifications, and the first objective lens 31, the second objective lens 32, and the third objective lens 33 are circumferentially spaced at different angle positions on the front end of a turntable 8, and the turntable 8 is rotatably mounted below the light guide sleeve 7;

[0039] When the turntable 8 is rotated so that one of the three objective lenses 31, 32, and 33 is aligned with the light guide hole 71, the function of changing the magnification of the objective lens can be realized.

[0040] like Figure 3 As shown, the working principle of this utility model is as follows: when the turntable 8 is rotated to align the first objective lens 31 with the light guide hole 71, the eyepiece assembly 2 and the first objective lens 31 are on the optical axis S, and a certain range of magnification can be obtained at this time; when the turntable 8 is rotated to align the second objective lens 32 with the light guide hole 71, a different range of magnification can be obtained. Similarly, the turntable 8 can also be rotated to align the third objective lens 33 with the light guide hole 71, and a different range of magnification can also be obtained.

[0041] Preferably, a rotating base 72 is provided next to the light guide hole 71. A rotating shaft 81 protrudes from the rear end of the turntable 8. A screw hole 811 is provided on the end face of the rotating shaft 81. The rotating shaft 81 is nested in the central hole 721 of the rotating base 72, and a screw 73 is screwed into the screw hole 811 to form a rotatable connection between the light guide sleeve 7 and the turntable 8. This facilitates the rotation of the turntable 8, with the rotating shaft 81 of the turntable 8 rotating within the rotating base 72. The structure is simple and easy to install.

[0042] Preferably, the turntable 8 is fitted inside a multiplier adjustment ring 9, which is rotatably mounted on the outer casing 1. The structure is simple and easy to use.

[0043] Preferably, the turntable 8 is provided with locking blocks 82 on both sides, and the multiplier adjustment ring 9 is provided with a slot 91 on its side wall. The locking blocks 82 are nested in the slot 91 so that rotating the multiplier adjustment ring 9 can drive the turntable 8 to rotate. The structure is simple and the connection is convenient.

[0044] Preferably, a diopter adjustment ring 20 is also installed on the housing 1, which is used to adjust the program lens assembly 2.

[0045] Preferably, the outer side of the multiplier adjustment ring 9 has a protruding actuating protrusion 92 for easy adjustment.

[0046] Preferably, the first objective lens 31 has a magnification of 40-135x, the second objective lens 32 has a magnification of 150-350x, and the third objective lens 33 has a magnification of 20-55x.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A handheld microscope for children with interchangeable objective lenses and magnification, comprising: An outer shell (1) is formed by splicing a left shell (11) and a right shell (12), and a cavity (13) is formed between the left shell (11) and the right shell (12). The eyepiece assembly (2) and the objective lens assembly (3) are installed in the cavity (13). A transparent cover (4) is installed at the bottom of the outer shell (1); An LED light source assembly (5) is located inside a transparent cover (4) and is used to illuminate the specimen on the glass slide. A battery assembly (6) is installed inside the cavity (13) to provide power to the LED light source assembly (5); The feature is that a light guide sleeve (7) is installed directly below the eyepiece assembly (2), and the front end of the light guide sleeve (7) has a light guide hole (71); The objective lens assembly (3) includes a switchable first objective lens (31), a second objective lens (32), a third objective lens (33), and a turntable (8); the first objective lens (31), the second objective lens (32), and the third objective lens (33) have different magnifications, and the first objective lens (31), the second objective lens (32), and the third objective lens (33) are circumferentially spaced at different angle positions on the front end of a turntable (8), and the turntable (8) is rotatably mounted below the light guide sleeve (7); When the turntable (8) is rotated, one of the three objective lenses (31), (32), and (33) is aligned with the light guide hole (71), thereby realizing the function of changing the magnification of the objective lens.

2. The handheld pediatric microscope with interchangeable objective lenses and magnification according to claim 1, characterized in that: A rotating seat (72) is provided next to the light guide hole (71). A rotating shaft (81) protrudes from the rear end of the turntable (8). A screw hole (811) is provided on the end face of the rotating shaft (81). The rotating shaft (81) is nested in the center hole (721) of the rotating seat (72), and a screw (73) is screwed into the screw hole (811) to make the light guide sleeve (7) and the turntable (8) rotatably connected.

3. A handheld pediatric microscope with interchangeable objective lenses and magnification as described in claim 1 or 2, characterized in that: The turntable (8) is fitted inside a multiplier adjustment ring (9), which is rotatably mounted on the outer shell (1).

4. A handheld pediatric microscope with interchangeable objective lenses and magnification as described in claim 3, characterized in that: The turntable (8) has locking blocks (82) on both sides, and the multiplier adjustment ring (9) has a slot (91) on its side wall. The locking blocks (82) are nested in the slot (91) so that rotating the multiplier adjustment ring (9) can drive the turntable (8) to rotate.

5. A handheld pediatric microscope with interchangeable objective lenses and magnification according to claim 4, characterized in that: The housing (1) is also equipped with a diopter adjustment ring (20), which is used to adjust the program lens assembly (2).

6. A handheld pediatric microscope with interchangeable objective lenses and magnification according to claim 5, characterized in that: The outer side of the multiplier adjustment ring (9) has a protruding actuating protrusion (92).

7. A hand held child microscope with interchangeable objective magnification according to claim 6, characterized in that: The magnification of the first objective lens (31) is 40-135x, the magnification of the second objective lens (32) is 150-350x, and the magnification of the third objective lens (33) is 20-55x.

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