Display control device of microscope light source

Abstract

The utility model belongs to the technical field of optical microscopes, and discloses a display control device of a microscope light source, which comprises a light supplementing light source, a light supplementing angle adjusting assembly, a brightness adjusting assembly and a light source energy source. A light supplementing light source adopts a white light LED lamp bead combined with an inverted conical light cup, so that the light utilization rate is improved; the light supplementing angle adjusting assembly achieves multi-angle free steering of the light source through a rotating shaft and an adjusting handle, and the sample observation requirement is accurately met. The brightness adjusting assembly is based on the PWM principle, utilizes a metal film potentiometer and an IRF520 MOS, realizes 0-100% linear dimming on the premise of ensuring stable color temperature, and prevents the observation effect from being influenced by color temperature shift. The light source is powered by the battery compartment to ensure the use flexibility of the device. All the components operate cooperatively, light shadow and reflection interference are effectively eliminated, the microscopic image definition and color rendition degree are remarkably improved, and an efficient and convenient illumination solution is provided for scientific research, teaching and other scenes.

Description

Technical Field

[0001] This utility model relates to the field of optical microscope technology, specifically to a display and control device for a microscope light source. Background Technology

[0002] In numerous fields such as bioscience, medical research, and materials analysis, optical microscopes, as fundamental observation tools, are highly dependent on light sources. In traditional optical microscope illumination systems, mirrors were once a widely used basic component. They provided basic brightness for sample observation by reflecting ambient light onto the slide, and in well-lit environments, could meet general magnification requirements. However, when the ambient light is dim, the mirror, lacking sufficient external light, cannot effectively reflect light, resulting in insufficient brightness in the sample's field of view, blurred details, and severely affecting the clarity and contrast of the microscopic image, greatly limiting its application in scenarios such as nighttime and low-light laboratories.

[0003] To compensate for the shortcomings of reflectors in low-light conditions, some optical microscopes employ built-in lights as supplementary illumination. However, existing supplementary lighting technologies have significant limitations: First, most supplementary light sources are designed with a fixed angle, making it impossible to flexibly adjust according to sample thickness, objective lens focal length, and observation angle. For example, when observing multilayered cell structures or tiny samples under high-power objectives, fixed-angle light is prone to shadows, reflections, or light refraction, resulting in localized underexposure or overexposure of the sample, severely affecting the magnified display effect. Second, brightness adjustment functions are lacking or rudimentary; some microscopes only offer simple on / off controls, failing to meet the personalized light intensity requirements for different sample observations. Excessively bright light not only causes visual fatigue and damages eyesight but also leads to the loss of sample details due to excessive light penetration, making it difficult to accurately identify key information such as cell boundaries and tissue structures; while excessively dim light makes the sample difficult to clearly present, increasing the difficulty of observation and the risk of misjudgment. Furthermore, when the lighting is not ideal, researchers often need to repeatedly adjust the position and angle of the slides to adapt to the light, which is cumbersome and inefficient. In experimental scenarios that require rapid observation or recording, this method of operation greatly affects the progress of scientific research and experimental efficiency.

[0004] As scientific research and teaching fields increasingly demand higher precision and efficiency in microscopic observation, the shortcomings of traditional optical microscopes in terms of light source systems have become increasingly apparent. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a display control device for a microscope light source, thereby solving the problems mentioned in the background section regarding the adjustment requirements for the light source angle and brightness in traditional microscopes.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a display control device for a microscope light source, characterized in that it comprises:

[0009] A supplementary light source is provided, which is located below the stage of the optical microscope. The supplementary light source is equipped with white LED beads to provide supplementary illumination to the bottom of the slide.

[0010] A supplementary light angle adjustment component is provided, which is mounted on the optical microscope body. The supplementary light angle adjustment component includes a fixed frame and a rotating shaft. The fixed frame is fixedly connected to the optical microscope body. The supplementary light source is mounted directly below the optical microscope stage via the fixed frame. The rotating shaft is located on one side of the fixed frame and is fixedly connected to the supplementary light source. The rotating shaft is rotatably connected to the fixed frame to achieve rotational adjustment of the orientation angle of the supplementary light source.

[0011] A brightness adjustment component is disposed on the base of an optical microscope. The brightness adjustment component includes an adjustment knob and a circuit component. The adjustment knob is disposed on the surface of the optical microscope base, and the circuit component is disposed inside the optical microscope base.

[0012] The light source energy source is located inside the optical microscope base and includes a battery compartment containing a battery for powering the supplementary light source.

[0013] Preferably, the outer side of the supplementary light source is an inverted conical light cup, the top of the light cup is provided with a light-transmitting lens, and a fixing ring is provided on the outer side of the light-transmitting lens. The fixing ring is fixedly connected to the rotating shaft.

[0014] Preferably, an adjustment handle is provided on the side of the rotating shaft away from the fixed frame.

[0015] Preferably, the circuit assembly includes a circuit board, a metal thin-film potentiometer, and a PWM signal control MOS. The circuit board is fixedly mounted on the base plate of the optical microscope base. A metal thin-film potentiometer is provided on the circuit board corresponding to the adjustment knob. The metal thin-film potentiometer is coaxially fixedly connected to the adjustment knob. A PWM signal control MOS is also provided on the circuit board.

[0016] Preferably, a battery compartment cover is provided on the base plate of the optical microscope base corresponding to the battery compartment.

[0017] Preferably, the optical microscope base has a wire through hole.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a display control device for a microscope light source, which has the following beneficial effects:

[0020] 1. The display control device of this microscope light source is equipped with a supplementary light source, a supplementary light angle adjustment component, a brightness adjustment component, and a light source energy source. It can use LED beads to emit light to supplement the optical microscope, with good supplementary light effect. It can also adjust the supplementary light angle and brightness, which is convenient and can greatly improve the user experience and magnification display effect of the optical microscope.

[0021] 2. It is equipped with a fill light angle adjustment component. Users can change the light source output angle by rotating the adjustment handle, which makes it easy to adjust the fill light angle and can greatly improve the display effect.

[0022] 3. It is equipped with a brightness adjustment component, which can change the brightness of the LED beads and prevent it from being too bright or too dark, making it easier to use the optical microscope. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the microscope base of this utility model;

[0026] Figure 4 This is a schematic diagram of the supplementary light source structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the battery compartment cover structure of this utility model.

[0028] In the diagram: 1. Supplemental light source; 2. Supplemental light angle adjustment component; 3. Brightness adjustment component; 4. Light source energy; 5. Light cup; 6. Fixing ring; 7. Fixing bracket; 8. Rotating shaft; 9. Adjustment handle; 10. Adjustment knob; 11. Circuit component; 12. Circuit board; 13. Metal thin film potentiometer; 14. PWM signal control MOS; 15. Battery compartment; 16. Battery compartment cover; 17. Wire through hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 This utility model provides a technical solution:

[0031] A display control device for a microscope light source, characterized in that it comprises:

[0032] A supplementary light source 1 is set below the stage of the optical microscope. The supplementary light source 1 is equipped with white LED beads to provide supplementary illumination to the bottom of the slide.

[0033] The supplementary light angle adjustment component 2 is mounted on the optical microscope body. The supplementary light angle adjustment component 2 includes a fixed frame 7 and a rotating shaft 8. The fixed frame 7 is fixedly connected to the optical microscope body. The supplementary light source 1 is mounted directly below the optical microscope stage through the fixed frame 7. The rotating shaft 8 is located on one side of the fixed frame 7 and is fixedly connected to the supplementary light source 1. The rotating shaft 8 is rotatably connected to the fixed frame 7 to achieve rotational adjustment of the orientation angle of the supplementary light source 1.

[0034] Brightness adjustment component 3 is disposed on the optical microscope base. Brightness adjustment component 3 includes adjustment knob 10 and circuit component 11. Adjustment knob 10 is disposed on the surface of optical microscope base, and circuit component 11 is disposed inside optical microscope base.

[0035] The light source energy 4 is located inside the optical microscope base. The light source energy 4 includes a battery compartment 15, which contains a battery for powering the supplementary light source 1.

[0036] Furthermore, the outer side of the supplementary light source 1 is an inverted conical light cup 5, with a light-transmitting lens at the top of the light cup 5. A fixing ring 6 is located on the outer side of the light-transmitting lens, and the fixing ring 6 is fixedly connected to the rotating shaft 8. The light cup 5 has a light-concentrating function, which can prevent the waste of scattered light sources and improve energy utilization. That is, using the same amount of electricity, using the light cup 5 to concentrate the light can make the opening side brighter.

[0037] Furthermore, an adjustment handle 9 is provided on the side of the rotating shaft 8 opposite to the fixed frame 7. The adjustment handle 9 is enlarged and thickened to improve the operating feel.

[0038] Furthermore, circuit assembly 11 includes circuit board 12, metal thin-film potentiometer 13, and PWM signal control MOS 14. Circuit board 12 is fixedly mounted on the base plate of the optical microscope. A metal thin-film potentiometer 13 is located on circuit board 12 corresponding to the adjustment knob 10, and the metal thin-film potentiometer 13 is coaxially and fixedly connected to the adjustment knob 10. PWM signal control MOS 14 is also located on circuit board 12. The brightness control circuit must use a PWM-based control method. IRF520 is recommended. Although existing brightness adjustment technologies are very mature, with chip control methods such as LM317 and TP4056, these chips can cause color temperature shifts, leading to a reduction in the blue light component. While this has the advantage of protecting eyesight in regular use, it will affect the magnified observation effect in microscope observation, having a negative effect. The traditional older IRF520 MOS control is recommended. It controls the LED conduction time through a high-frequency signal, changing the average current to adjust the brightness without affecting the color temperature. This method reduces the LED lifespan, which is more acceptable than the impact on observation effect.

[0039] Furthermore, a battery compartment cover 16 is provided on the base plate of the optical microscope base corresponding to the battery compartment 15.

[0040] Furthermore, a wire through-hole 17 is provided on the optical microscope base. The wire through-hole 17 is used for wires to pass through, with one end of the wire connected to the LED from the tip of the supplementary light source 1 and the other end connected to the circuit board 12 to power the LED.

[0041] Structural Description:

[0042] Supplemental light source 1: A light-emitting structure located below the stage of the optical microscope, containing white LED beads, used to provide supplemental illumination to the bottom of the slide;

[0043] Supplemental light angle adjustment component 2: An angle adjustment structure installed on the optical microscope body, including a fixing frame 7 and a rotating shaft 8, which is connected to the supplemental light source 1 through the rotating shaft 8 to realize the adjustment of the orientation angle of the supplemental light source 1;

[0044] Brightness adjustment component 3: A brightness control structure located on the base of the optical microscope, including an adjustment knob 10 and a circuit component 11. The brightness of the LED beads can be changed by controlling the circuit component 11 through the adjustment knob 10.

[0045] Light source energy 4: The power supply structure located inside the optical microscope base includes a battery compartment 15 for installing batteries to provide power to the supplementary light source 1;

[0046] Light cup 5: The inverted cone-shaped light-gathering structure on the outside of the supplementary light source 1, with a light-transmitting lens at the top, can concentrate light and improve energy utilization;

[0047] Fixing ring 6: An annular fixing structure on the outer side of the light-transmitting lens at the top of the light cup 5, which is fixedly connected to the rotating shaft 8 and is used to fix the light cup 5 and the supplementary light source 1;

[0048] Fixture 7: The fixed support structure for the supplementary light angle adjustment component 2, which is fixedly connected to the optical microscope body and is used to fix the supplementary light source 1 directly below the stage;

[0049] Rotating shaft 8: The rotating connection structure of the supplementary light angle adjustment component 2. One side is rotatably connected to the fixed frame 7, and the other side is fixedly connected to the supplementary light source 1 and the adjustment handle 9, which drives the supplementary light source 1 to rotate to adjust the angle.

[0050] Adjustment handle 9: The operating structure of the rotating shaft 8 on the side opposite to the fixed frame 7 is enlarged and thickened to facilitate the user to rotate the rotating shaft 8 to adjust the angle of the supplementary light source 1;

[0051] Adjustment knob 10: An external operating component of the brightness adjustment assembly 3, set on the surface of the optical microscope base and coaxially fixed with the internal metal thin film potentiometer 13, used to adjust the brightness of the LED beads;

[0052] Circuit component 11: The core electronic control structure of the brightness adjustment component 3, located inside the optical microscope base, includes a circuit board 12, a metal thin film potentiometer 13 and a PWM signal control MOS 14, used to receive signals from the adjustment knob 10 and control the LED brightness;

[0053] Circuit board 12: The substrate of circuit assembly 11, fixedly mounted on the base plate of optical microscope base, used to integrate electronic components such as metal thin film potentiometer 13 and PWM signal control MOS 14;

[0054] Metal film potentiometer 13: An adjustable resistive element on circuit board 12, coaxially fixed with adjustment knob 10, which transmits brightness adjustment signal through resistance change;

[0055] PWM signal control MOS14: The control element on circuit board 12, based on the PWM principle, controls the LED conduction time through a high-frequency signal to adjust the brightness. IRF520 MOS is recommended.

[0056] Battery compartment 15: The housing structure for the light source energy 4, located inside the optical microscope base, is used to install the battery, and is equipped with a battery compartment cover 16 on the outside.

[0057] Battery compartment cover 16: An openable cover on the base plate of the optical microscope base corresponding to the battery compartment 15, for easy installation and replacement of batteries;

[0058] Wire through hole 17: A wire-passing structure on the optical microscope base for wires to pass through, connecting the LED beads of the supplementary light source 1 to the circuit board 12 to form a power supply circuit.

[0059] Working Principle: In the light source generation stage, the supplementary light source 1 plays a core role. The supplementary light source 1 is positioned below the stage of the optical microscope, and contains white LED beads as the light emitters. The white LED beads possess efficient and stable light-emitting characteristics, providing basic illumination for sample observation. Simultaneously, the inverted conical light cup 5 on the outer side of the supplementary light source 1 plays a crucial role in optical optimization. Its unique inverted conical structure effectively converges the scattered light emitted by the LED beads, and together with the top-mounted lens and fixing ring 6, precisely projects the light onto the bottom of the slide. This design not only reduces energy loss caused by light scattering but also significantly improves the concentration and utilization of light, resulting in a substantial increase in light brightness on the open side with the same power consumption, providing superior illumination conditions for sample observation.

[0060] The supplementary lighting angle adjustment component 2 enables flexible adjustment of the illumination angle. The mounting bracket 7 is securely connected to the optical microscope body, ensuring the basic support for the entire supplementary lighting source 1. The supplementary lighting source 1 is positioned directly below the stage via the mounting bracket 7, while the rotating shaft 8 serves as the core transmission component, with one end fixed to the supplementary lighting source 1 and the other end forming a rotatable connection with the mounting bracket 7. When the user operates the adjustment handle 9 on the side of the rotating shaft 8 away from the mounting bracket 7, the supplementary lighting source 1 can be rotated around the rotating shaft 8 as its axis. The adjustment handle 9 has been enlarged and thickened to optimize the operating feel, allowing the user to more easily and accurately adjust the orientation angle of the supplementary lighting source 1. This adjustment mechanism can flexibly change the incident angle of light according to the sample thickness, the focal length of the objective lens, and the observation requirements, effectively avoiding shadows, reflections, or refractions caused by improper light angles, ensuring that light penetrates the sample at the optimal angle, and improving the clarity and contrast of the microscopic image.

[0061] The brightness adjustment component 3 provides the device with flexible brightness control capabilities. The adjustment knob 10, located on the surface of the optical microscope base, works in conjunction with the circuit component 11 inside the base. The metal thin-film potentiometer 13 in the circuit component 11 is coaxially fixed to the adjustment knob 10. When the user rotates the adjustment knob 10, the resistance of the metal thin-film potentiometer 13 changes accordingly. This resistance change signal is transmitted to the PWM signal control MOS 14 (IRF520 is recommended) on the circuit board 12. The PWM signal control MOS 14 is based on the pulse width modulation (PWM) principle, controlling the conduction time of the LED beads by generating a high-frequency switching signal. Specifically, by adjusting the duty cycle of the PWM signal, the average operating current of the LED beads is changed, thereby achieving linear brightness adjustment from 0% to 100%. Compared to control chips such as LM317 and TP4056, which may cause color temperature shift, the PWM control method based on IRF520 may shorten the LED lifespan to some extent, but it can ensure color temperature stability and avoid the reduction of blue light components in the light, thereby ensuring the authenticity and accuracy of color when observing samples. It is more suitable for scenarios with extremely high requirements for microscopic observation effects.

[0062] The light source 4 provides stable power support for the entire system. A battery compartment 15 is located inside the optical microscope base, and a battery compartment cover 16 facilitates battery installation and replacement. The battery installed in the battery compartment 15 is connected to the circuit board 12 via wires through wire holes 17, supplying power to the supplementary light source 1, the supplementary light angle adjustment component 2, and the brightness adjustment component 3. One end of the wire connects to the LED bead at the tip of the supplementary light source 1, and the other end connects to the circuit board 12, forming a complete power supply circuit. This ensures that the device can continue to operate stably even when disconnected from an external power source, meeting the usage requirements in different scenarios.

[0063] In summary, the display control device for this microscope light source, through the precise coordination of its components, achieves full-process optimization from light source generation, angle adjustment, brightness control to energy supply. It effectively solves the problems of insufficient light, fixed angle, and unadjustable brightness in traditional optical microscope illumination systems, significantly improving the user experience and microscopic observation effect of optical microscopes.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A display control device of a microscope light source, characterized by, include: A supplementary light source (1) is provided below the stage of the optical microscope. The supplementary light source (1) is equipped with white LED beads to provide supplementary lighting for the bottom of the slide. A supplementary light angle adjustment component (2) is provided on the optical microscope body. The supplementary light angle adjustment component (2) includes a fixed frame (7) and a rotating shaft (8). The fixed frame (7) is fixedly connected to the optical microscope body. The supplementary light source (1) is provided directly below the optical microscope stage through the fixed frame (7). The rotating shaft (8) is provided on one side of the fixed frame (7). The rotating shaft (8) is fixedly connected to the supplementary light source (1). The rotating shaft (8) is rotatably connected to the fixed frame (7) to realize the rotation adjustment of the orientation angle of the supplementary light source (1). Brightness adjustment component (3) is disposed on the optical microscope base. The brightness adjustment component (3) includes an adjustment knob (10) and a circuit component (11). The adjustment knob (10) is disposed on the surface of the optical microscope base, and the circuit component (11) is disposed inside the optical microscope base. The light source energy (4) is located inside the optical microscope base. The light source energy (4) includes a battery compartment (15) which contains a battery for powering the supplementary light source (1).

2. A display control device for a microscope light source according to claim 1, characterized in that: The supplementary light source (1) has an inverted conical light cup (5) on the outside, and a light transmission lens is provided at the top of the light cup (5). A fixing ring (6) is provided on the outside of the light transmission lens, and the fixing ring (6) is fixedly connected to the rotating shaft (8).

3. The display control device for a microscope light source according to claim 1, characterized by: An adjustment handle (9) is provided on the side of the rotating shaft (8) away from the fixed frame (7).

4. The display control device for a microscope light source according to claim 1, characterized by: The circuit assembly (11) includes a circuit board (12), a metal thin film potentiometer (13), and a PWM signal control MOS (14). The circuit board (12) is fixedly mounted on the base plate of the optical microscope base. A metal thin film potentiometer (13) is provided on the circuit board (12) corresponding to the adjustment knob (10). The metal thin film potentiometer (13) is coaxially fixedly connected to the adjustment knob (10). A PWM signal control MOS (14) is also provided on the circuit board (12).

5. The display control device for a microscope light source according to claim 1, characterized by: A battery compartment cover (16) is provided on the base plate of the optical microscope base corresponding to the battery compartment (15).

6. The display control device for a microscope light source according to claim 1, characterized by: The optical microscope base has a wire through hole (17).

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