Light absorption microplate reader capable of switching xenon lamp and tungsten lamp as light source

Abstract

A light absorption microplate reader capable of switching a xenon lamp and a tungsten lamp as light sources comprises a light absorption microplate reader body, an electric linear sliding table, the xenon lamp, the tungsten lamp, an electric push rod and a control power switch, and a light hole is formed in the rear end of a light source box of the light absorption microplate reader body; the xenon lamp and the tungsten lamp are installed at the front side end of a sliding block of the electric linear sliding table, the front ends of the electric push rods are installed at the rear side end of the electric linear sliding table, the rear ends of the electric push rods are installed in the fixing shell, and the two control power switches are longitudinally installed on one side of the front portion of the rear end of one electric push rod and one side of the front end of a shell of the electric linear sliding table respectively. And the other two control power switches are respectively and transversely arranged at the front two side ends of the shell of the electric linear sliding table. The novel equipment is compact, attractive and convenient to use, convenience is brought to detection personnel, the xenon lamp or the tungsten lamp can be switched to detect a sample according to the requirement of the specific detected sample, and therefore more samples can be accurately detected. The device has a good application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a light absorption microplate reader capable of switching xenon lamps and tungsten lamps as light sources. Background Art

[0002] A microplate reader is a very important detection device with great application value and is widely used in many industries such as major hospitals, university scientific research institutions, disease control centers, technical quality supervision bureaus, animal and plant inspection and quarantine, and the food and feed industries. Microplate readers are divided into light absorption microplate readers and fluorescence microplate readers, etc. In the application of a light absorption microplate reader, the inspector opens the door of the front end of the housing, and then vertically places the sample to be detected (the sample is in a transparent test tube, and depending on the specific installation position of the light source lamp of the microplate reader, the test tube is on or under the converging light beam of the light source lamp) on the internal bracket. After closing the door, the inspector controls the device to detect the sample by operating the buttons on the upper front end of the housing. During the detection, the processed light beam emitted by the light source lamp of the light absorption microplate reader vertically enters the specimen to be detected in the transparent test tube from the upper inner or lower inner end. Then, a part of this light beam is absorbed by the specimen, and the other part passes through the specimen and irradiates the photodetector at the lower inner or upper inner end of the microplate reader through the transparent test tube. The photodetector inputs the light signals of different intensities corresponding to this specimen to be detected into the signal input end of the signal conversion board of the microplate reader. The conversion board converts it into corresponding electrical signals, and after signal processing such as pre-amplification, logarithmic amplification, and analog-to-digital conversion, the electrical signals are sent to the supporting microprocessor for data processing and calculation. Finally, the data results of the detected sample (such as allergens, thyroid, inorganic toxins, etc.) are displayed on the display screen, or the data results are printed through a peripherally supported printer.

[0003] When the light source lamp of an ELISA reader located at the lower part is actually working, the light rays emitted and converged by the light source lamp are focused and horizontally irradiated on the rear end light spot of the optical fiber located in front of it. Then, the other end of the optical fiber with a certain curvature irradiates the light on the lower focus of the convex lens at the lower end of the bracket. The light beam focused by the double-sided convex lens passes through the specimen to be tested in the transparent test tube from bottom to top, thereby achieving the purpose of sample detection (the light source lamp, optical fiber, lens, etc. are all installed in a light source box, and the light source box is located at the lower end of the bracket). The light source lamp of a light absorption ELISA reader generally uses a xenon lamp or a tungsten lamp, and both have their own advantages and disadvantages. Specifically, the tungsten lamp has the following advantages: (1) Wide spectral range: The tungsten lamp can emit light in the wavelength range from infrared to ultraviolet, covering a wide area, and can reach a wavelength range of 200 - 700 nm. This enables the tungsten lamp to be suitable for the detection requirements of various samples in the ELISA reader; (2) Longer lifespan and more stable operation compared to other light sources: This allows the tungsten lamp to continuously and stably provide light source in the ELISA reader, reducing the replacement frequency and saving the usage cost; (3) Its spectrum includes multiple bands such as ultraviolet, visible light, and infrared. This broad-spectrum property enables the tungsten lamp to be used for detecting general chemical reactions in the ELISA reader and meet various experimental requirements. However, the tungsten lamp as a light source lamp also has the following disadvantages. (1) Although the tungsten lamp has a wide spectral range, its spectrum in the ultraviolet band is weak, and compared with the xenon lamp light source, the brightness is lower, which will affect the detection of some samples that require a strong ultraviolet light source; (2) Compared with the xenon lamp light source, the stability of the tungsten lamp light source is slightly inferior. Therefore, in some detections that require high precision, the xenon lamp light source is selected instead of the tungsten lamp light source; (3) As a thermal light source, the tungsten lamp has a relatively long warm-up time, which will affect the detection of some samples that require quick start-up. The xenon lamp has the following advantages: (1) Its light source has the characteristics of high light brightness and high stability. The light is mainly concentrated in the ultraviolet and visible light regions, and can provide a relatively stable light source output, especially suitable for the detection of some samples that require strong ultraviolet and visible light sources; (2) It has high-precision characteristics and can be used for experimental detections that require high precision; (3) The optical and electrical parameters of the xenon lamp are in good consistency, and the working state is less affected by changes in external conditions. After being powered on, it can almost instantaneously reach a stable light output. After the lamp is turned off, the power can be turned on again instantaneously for detection, with relatively fast speed and reliability; (3) The service life of the xenon lamp can reach more than 1000 hours, and due to the adoption of an advanced heat dissipation mode, the service life of the lamp can be greatly extended; (4) The xenon lamp light source can achieve high energy density and long-time continuous irradiation, and the light power is continuously adjustable, suitable for the detection experiments of almost all samples simulating sunlight illumination. However, the xenon lamp as a light source also has the following disadvantages.(1): The xenon lamp has a very high air pressure at room temperature and requires a trigger to help start. A relatively high voltage is needed during startup. Compared with the tungsten lamp, its structure is more complex and the cost is relatively high. (2): The spectral range is relatively narrow, only including wavelengths from 250 to 400 nm. Although the high light intensity can improve the sensitivity and accuracy of detection, compared with the wide range of wavelengths of the tungsten lamp, it is impossible to achieve the detection purpose for some samples that require specific wavelength detection. In order to detect more samples in the prior art, it is necessary to equip two sets of chromatographs with tungsten lamps or xenon lamps as light sources. Therefore, the cost is high, the equipment is not compact, and it will also bring inconvenience to the operation of the detection personnel. In summary, it is particularly necessary to provide an enzyme-linked immunosorbent assay (ELISA) reader that combines the advantages of tungsten lamps and xenon lamps and can detect more samples. Summary of the Invention

[0004] In order to overcome the drawbacks described in the background art, that is, due to the structural limitations of the existing light absorption ELISA reader, only one light source is used to detect samples. The present invention provides an ELISA reader with a switchable xenon lamp and tungsten lamp as light sources. All components are integrated together, the equipment is compact and beautiful, easy to use, and brings convenience to the detection personnel. Under the combined action of relevant mechanisms, the detection personnel can switch between the xenon lamp and the tungsten lamp to detect samples according to the specific samples to be detected, so as to accurately detect more samples.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] An ELISA reader with a switchable xenon lamp and tungsten lamp as light sources, including an ELISA reader body, an electric linear slide, a xenon lamp, a tungsten lamp, an electric push rod, and a control power switch. An optical fiber and a double-sided convex lens are installed in the light source box of the ELISA reader body. The double-sided convex lens is located at the upper end of the light source box, and the optical fiber is installed in the light source box. The upper end of the optical fiber is located below the lower focal point of the convex lens. There is a light hole at the rear end of the light source box. It is characterized in that an aperture is installed at the rear side end of the light hole, and there is a spacing distance between the rear end of the optical fiber and the aperture. The xenon lamp and the tungsten lamp are installed horizontally at intervals on the front side end of the sliding block of the electric linear slide. The front end of the electric push rod is installed at the rear side end of the electric linear slide, and the rear end of the electric push rod is installed in the fixed shell at the rear side of the light source box. There are at least four control power switches. Two of the control power switches are respectively installed longitudinally on one side of the front part of the rear end of one electric push rod and on one side of the front end of the housing of the electric linear slide, and the other two control power switches are respectively installed horizontally on the front two side ends of the housing of the electric linear slide.

[0007] Further, there is a spacing distance between the sliding block of the electric linear slide and the lower end of the fixed shell, and the heights of the xenon lamp and the tungsten lamp are at the same horizontal plane as the aperture at the rear side end of the light source box.

[0008] Further, the xenon lamp and the tungsten lamp are respectively installed at the rear end inside the fixed cylinder, and a double-sided convex lens A is installed at the front side end of the fixed cylinder.

[0009] Further, the four control power switches are normally closed push-button power switches. The buttons of two of the control power switches are located at the front end, and the buttons of the other two control power switches are respectively located on both sides of the sliding block of the electric linear slide.

[0010] Further, an annular gasket is installed at the rear side end of the aperture, and the outer diameter of the double-sided convex lens A of the fixed cylinder of the xenon lamp and the tungsten lamp is larger than the inner diameter of the gasket.

[0011] Further, the four control power switches are respectively electrically connected in series between the power input ends of the electric push rod and the electric linear slide.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: Based on the optical absorption microplate reader body, the present novel combines a xenon lamp and a tungsten lamp as light sources. Since components such as the xenon lamp and the tungsten lamp are integrated together, the device is compact and beautiful, easy to use, and brings convenience to the detection personnel. Under the combined action of the electric linear slide and the electric push rod, etc., the detection personnel can, according to the specific sample to be detected, switch the xenon lamp or the tungsten lamp to detect the sample by operating the power switch, and thus can accurately detect more samples. In summary, the present utility model has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is the overall structural schematic diagram of the present utility model.

[0015] Figure 2 、 3 is the partial enlarged structural schematic diagram of the present utility model.

[0016] Figure 4 is the circuit diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Figure 1 、 2As shown in Figures 3 and 4, a light absorption microplate reader that can switch between a xenon lamp and a tungsten lamp as a light source includes a light absorption microplate reader body 1, a power supply module A1, an electric linear slide M1, a xenon lamp 2 (40W), a tungsten lamp 3 (40W), an electric push rod M, a control power switch, and power switches S, S1, S2, and S3. Inside the light source box 101 of the light absorption microplate reader body, an optical fiber 102 and a double-sided convex lens 103 are installed. The double-sided convex lens 103 is located in the central opening at the upper end of the light source box. The optical fiber 102 is bent and installed at the lower end inside the light source box 101 through an "L"-shaped fixing bracket 104 at the lower end inside the light source box. The upper end of the optical fiber 102 is located below the central focus of the lower part of the convex lens 103. There is a light hole 105 in the middle of the rear end of the light source box 101, and an outwardly convex annular hollow aperture 108 is welded to the rear end of the light hole. The rear end of the optical fiber 102 is aligned with the middle of the light hole 105 and there is a certain distance (about 1 cm) between them front and back; the lower end of the light source box 101 is installed in the middle of the lower end inside the housing of the light absorption microplate reader body 1. The xenon lamp 2 (H1) and the tungsten lamp 3 (H2) are installed at intervals on the front side end of the sliding block of the electric linear slide M1. There are at least two sets of electric push rods M. The front ends of the push rods of the two sets of electric push rods M are respectively installed at the rear side end of the housing of the electric linear slide M1. The rear side ends of the cylinders of the two sets of electric push rods M are respectively installed at the middle lower end of the rear side inside the housing (actually installed at both ends of the middle of the rear side end of the mounting shell 106, and the mounting shell is located at the middle lower end of the rear side inside the housing), and the electric linear slide M1, the xenon lamp 2, and the tungsten lamp 3 are horizontally located inside the mounting shell 106 at the rear side end of the light source box 101; there are four control power switches. Two of the control power switches D1 and D2 are respectively installed longitudinally on the right front side of the cylinder of one of the electric push rods M and on the left front side of the housing of the electric linear slide M1. The other two control power switches D4 and D3 are respectively installed horizontally on the front left and right side ends of the housing of the electric linear slide M1; the power supply module A1, the power switches S, S1, S2, and S3 are installed in the component bin of the light absorption microplate reader body 1, and the handles of the power switches S, S1, S2, and S3 are located outside the front end of the housing of the light absorption microplate reader body 1. The power input terminals 1 and 2 of the power supply module A1, the power input terminals 1 and 2 of the power switches S2 and S3, and the two poles of the AC 220V power supply are respectively connected by wires. The power output terminals 3 and 4 of the power supply module A1 and the power input terminals 1 and 2 of the two power switches S and S1 are respectively connected by wires; the power output terminals 3, 4, 5, and 6 of the power switch S and the positive and negative and negative and positive power input terminals of the two sets of electric push rods M are respectively connected by wires; the power output terminals 3, 4, 5, and 6 of the power switch S1 and the positive and negative and negative and positive power input terminals of the electric linear slide M1 are respectively connected by wires. The power output terminals of the power switches S2 and S3 and the power input terminals of the xenon lamp 2 (H1) and the tungsten lamp 3 (H2) are respectively connected by wires.

[0018] Figure 1 、2 As shown in Figures 3 and 4, for each of the power switches D1 and D2, its two terminals are respectively connected in series via wires between the 3rd and 5th pins of the power switch S and the negative and positive power input terminals of two sets of electric push rods M. For each of the power switches D3 and D4, its two terminals are respectively connected in series via wires between the 5th and 3rd pins of the power switch S1 and the positive and negative power input terminals of the electric linear slide M1. The sliding block of the electric linear slide M1 and the lower end of the mounting shell 106 (the front end is an open structure) are spaced apart by a certain distance. The heights of the xenon lamp 2 and the tungsten lamp 3 and the rear-side aperture 108 of the light source box are on the same horizontal plane. The xenon lamp 2 and the tungsten lamp 3 are respectively installed at the rear end inside a fixed cylinder 4 with a closed rear end and an open front end. A double-convex lens A41 is hermetically installed at the front end of the fixed cylinder 4, and the distance between the light-emitting surfaces of the xenon lamp 2 and the tungsten lamp 3 and the rear-side focal point of the convex lens A41 is 1 cm. The four control power switches D1, D2, D3, and D4 are normally closed push-button power switches. The buttons of two of the control power switches D1 and D2 are located at the front end, and the buttons of the other two control power switches D4 and D3 are respectively located on the left and right sides of the sliding block. A ring-shaped sealing gasket 107 is adhesively bonded to the rear side of the aperture 108. The outer diameter of the front end of the double-convex lens A41 of the fixed cylinder for the xenon lamp and the tungsten lamp is 1 mm larger than the inner diameter of the gasket. When the front ends of the convex lenses A41 of the xenon lamp and the tungsten lamp are respectively in close contact with the rear side of the gasket 107, the button of the second control power switch D2 touches the rear side of the light source box, and the internal contact of the second control power switch D2 is open. When the electric push rod M reaches the end point after pushing out, the rear side of the electric linear slide M1 touches the button of the first control power switch D1 on the front side of the cylinder body of one of the electric push rods, and the internal contact of the first control power switch D1 is open. When the front ends of the convex lenses A21 of the xenon lamp and the tungsten lamp are respectively in a straight line with the front and rear of the aperture 108, the left and right sides of the sliding block respectively touch the buttons of the third control power switch D3 and the fourth control power switch D4, and the internal contacts of the third control power switch D3 and the fourth control power switch D4 are open.

[0019] Figure 1 、 2As shown in FIGS. 3 and 4, this new type is based on the light absorption microplate reader body 1. During application, the inspector opens the chamber door at the front end of the light absorption microplate reader body 1, and then vertically places the sample to be detected on the internal bracket. After closing the chamber door 109, the inspector controls the device to detect the sample by operating the buttons at the upper front end of the housing. During the detection, the processed light beam emitted by the light source lamp (xenon lamp or tungsten lamp) of the light absorption microplate reader body 1 vertically enters the specimen to be tested in the transparent test tube from the lower inner part. Then, a part of this light beam is absorbed by the specimen, and the other part passes through the specimen and irradiates the photodetector at the upper inner part of the light absorption microplate reader body 1 through the transparent test tube. The photodetector inputs the light signals of different intensities corresponding to different specimens to be tested into the signal input end of the conversion board inside the light absorption microplate reader body 1. The conversion board converts it into corresponding electrical signals. After signal processing such as pre-amplification, logarithmic amplification, and analog-to-digital conversion, the electrical signals are sent to the microprocessor of the light absorption microplate reader body 1 for data processing and calculation. Finally, the data results of the detected sample (such as allergens, thyroid, inorganic toxins, etc.) are displayed on the display screen of the light absorption microplate reader body 1, or the data results are printed through an externally equipped printer.

[0020] Figure 1 、 2As shown in Figures 3 and 4, after the AC 220V power supply enters the power input terminal of the power supply module A1, the stable DC 12V power supply output from pins 3 and 4 of the power supply module A1 enters the power input terminals of the power switches S and S1. When the tester needs to use the xenon lamp H1 to detect the sample, turn on the power input terminal of the power switch S2, and the xenon lamp H1 gets powered on and emits light. Then the operator toggles the handle of the power switch S1 to the right, and the 1st and 2nd pins and the 5th and 6th pins of the power switch S1 are respectively connected. In this way, the positive and negative power input terminals of the electric linear slide M1 get powered on, and its slider drives the xenon lamp H1 and the tungsten lamp H2 to move towards the right end. When the front ends of the convex lenses A41 of the xenon lamp are respectively in a straight line with the front and rear of the light holes, the right end of the slider touches the button of the third control power switch D3, and the contacts inside the third control power switch D3 open. In this way, the electric linear slide loses power, and the xenon lamp H1 and the tungsten lamp H2 stop moving. Then the operator toggles the handle of the power switch S to the right, and the 1st and 2nd pins and the 5th and 6th pins of the power switch S are respectively connected. In this way, the positive and negative power input terminals of the two sets of electric push rods M get powered on, and their push rods drive the xenon lamp H1 and the tungsten lamp H2 to move towards the front end. When the front end of the convex lens A41 of the xenon lamp closely contacts the rear end of the rubber pad 107, the button of the second control power switch D2 touches the rear end of the light source box, and the internal contacts of the second control power switch D2 open. The electric push rod M loses power and stops moving, and the xenon lamp H1 also stops moving. Then, according to the existing detection process, the sample can be detected by the light source of the xenon lamp H1 (during the detection, the light emitted by the xenon lamp H1 is converged by the double-sided convex lens 21 and focused horizontally on the light spot at the rear end of the optical fiber 102 located in front of it. Then the other end of the optical fiber with a certain curvature irradiates the light on the lower focus of the double-sided convex lens 103 at the lower end of the bracket. The light beam focused by the double-sided convex lens 103 passes through the specimen to be tested in the transparent test tube from bottom to top, thus achieving the purpose of sample detection). After the detection is completed, the operator toggles the handle of the power switch S to the left, and the 1st and 2nd pins and the 3rd and 4th pins of the power switch S are respectively connected. In this way, the positive and negative power input terminals of the two sets of electric push rods M get powered on, and their push rods drive the xenon lamp H1, the tungsten lamp H2 and the electric linear slide M1 to move towards the rear end. When the rear end of the electric linear slide M1 touches the front end of the button of the first control power switch D1, the internal contacts of the first control power switch D1 open. The electric push rod M loses power and stops moving, and the xenon lamp H1, the tungsten lamp H2 and the electric linear slide M1 also stop moving towards the rear end, preparing for the next tungsten lamp or xenon lamp detection.

[0021] Figure 1 、 2As shown in Figures 3 and 4, when the tester needs to use the tungsten lamp H2 to detect the sample, turn on the power input terminal of the power switch S3. The tungsten lamp H2 is powered on and emits light. Then the staff moves the handle of the power switch S1 to the left, and the 1st and 2nd pins and the 3rd and 4th pins of the power switch S1 are connected respectively. In this way, the positive and negative power input terminals of the electric linear slide M1 are powered on, and its slider drives the xenon lamp H1 and the tungsten lamp H2 to move towards the left end. When the front side of the convex lens A41 of the tungsten lamp H2 and the front and back of the light hole 105 (aperture) are in a straight line, the left end of the slider touches the button of the fourth control power switch D4, and the contacts inside the fourth control power switch D4 are opened. In this way, the electric linear slide loses power, and the xenon lamp H1 and the tungsten lamp H2 stop moving. Then the staff moves the handle of the power switch S to the right, and the 1st and 2nd pins and the 5th and 6th pins of the power switch S are connected respectively. In this way, the negative and positive power input terminals of the two sets of electric push rods M are powered on, and their push rods drive the xenon lamp H1 and the tungsten lamp H2 to move towards the front end. When the front side of the convex lens A41 of the tungsten lamp H2 tightly contacts the rear side of the rubber pad 107, the button of the second control power switch D2 touches the rear side of the light source box, and the internal contacts of the second control power switch D2 are opened, and the electric push rod M loses power and stops moving, and the xenon lamp H1 also stops moving. Then, according to the existing detection process, the sample can be detected by the light source of the tungsten lamp H2 (during the detection, the light emitted by the tungsten lamp H2 is converged by the double-sided convex lens 21 and focused horizontally on the light spot at the rear end of the optical fiber 102 located in front of it. Then, the other end of the optical fiber with a certain curvature irradiates the light on the lower focus of the double-sided convex lens 103 at the lower end of the bracket. The light beam focused by the double-sided convex lens 103 passes through the test specimen in the transparent test tube from bottom to top, thus realizing the detection purpose of the sample). After the detection is completed, the staff moves the handle of the power switch S to the left, and the 1st and 2nd pins and the 3rd and 4th pins of the power switch S are connected respectively. In this way, the positive and negative power input terminals of the two sets of electric push rods M are powered on, and their push rods drive the xenon lamp H1, the tungsten lamp H2 and the electric linear slide M1 to move towards the rear end. When the rear end of the electric linear slide M1 touches the front side of the button of the first control power switch D1, the internal contacts of the first control power switch D1 are opened, the electric push rod M stops moving, and the xenon lamp H1, the tungsten lamp H2 and the electric linear slide M1 also stop moving towards the rear end, preparing for the next tungsten lamp or xenon lamp detection.

[0022] Figure 1 、 2As shown in Figures 3 and 4, through the above, this new type is based on the light absorption microplate reader body, combined with a xenon lamp and a tungsten lamp as light sources. Since components such as the xenon lamp and the tungsten lamp are integrated together, the device is compact and beautiful, easy to use, and brings convenience to the testers. The testers can switch the xenon lamp or the tungsten lamp according to the specific sample to be tested through operating the power switch to detect the sample, thereby enabling more accurate detection of more samples. The power supply module A1 is a finished product of an AC 220V power supply to DC 12V power supply module; the electric push rod M is a small electric telescopic rod with a power of 5W; the electric linear slide M1 is a finished product of a small electric screw-type electric linear slide with a power of 10W. In this application, when the light absorption microplate reader body is produced, a slightly larger shell can be used to accommodate and install the relevant added xenon lamp or tungsten lamp, electric linear slide, electric push rod, etc.

[0023] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A light absorption microplate reader capable of switching between xenon lamp and tungsten lamp as light source, comprising a light absorption microplate reader body, an electric linear slide, a xenon lamp, a tungsten lamp, an electric push rod, and a control power switch. An optical fiber and a double-sided convex lens are installed in the light source box of the light absorption microplate reader body. The double-sided convex lens is located at the upper end of the light source box, and the optical fiber is installed in the light source box. The upper end of the optical fiber is located below the lower focus of the convex lens. There is a light hole at the rear end of the light source box; it is characterized in that, An aperture is installed at the rear end of the light hole, and there is a spacing distance between the rear end of the optical fiber and the aperture; the xenon lamp and the tungsten lamp are installed at the front side ends of the sliding blocks of the electric linear slide horizontally at an interval distance, the front end of the electric push rod is installed at the rear side end of the electric linear slide, and the rear end of the electric push rod is installed in the fixed shell at the rear side of the light source box; there are at least four control power switches, two of which are longitudinally installed on one side of the front part of the rear end of one electric push rod and on one side of the front end of the shell of the electric linear slide respectively, and the other two control power switches are horizontally installed on both front side ends of the shell of the electric linear slide.

2. The light absorption microplate reader capable of switching xenon lamp and tungsten lamp as light sources according to claim 1, wherein, There is a spacing distance between the sliding block of the electric linear slide and the lower end of the fixed shell, and the heights of the xenon lamp and the tungsten lamp and the aperture at the rear side end of the light source box are on the same horizontal plane.

3. A light absorption microplate reader capable of switching between xenon lamps and tungsten lamps as light sources, as claimed in claim 1, wherein The xenon lamp and the tungsten lamp are respectively installed at the rear end inside the fixed cylinder, and a double-sided convex lens A is installed at the front side end of the fixed cylinder.

4. A light absorption microplate reader capable of switching between xenon lamps and tungsten lamps as light sources, as claimed in claim 1, wherein, The four control power switches are button normally closed power switches, the buttons of two of which are located at the front end, and the buttons of the other two control power switches are respectively located on both sides of the sliding block of the electric linear slide.

5. A light absorption microplate reader capable of switching between xenon lamps and tungsten lamps as light sources, as claimed in claim 1, wherein An annular sealing gasket is installed at the rear side end of the aperture, and the outer diameter of the double-sided convex lens A of the fixed cylinder of the xenon lamp and the tungsten lamp is larger than the inner diameter of the gasket.

6. The light absorption microplate reader capable of switching between xenon lamps and tungsten lamps as light sources according to claim 4, wherein The four control power switches are respectively electrically connected in series between the power input ends of the electric push rod and the electric linear slide.

Images