A kind of umbrella shed light for checking clarity

Abstract

The present invention relates to a clarity detection device, and in particular to a clarity inspection umbrella shed lamp. The structure includes a front box body and a back plate fixed behind the front box body, a projection observation window is arranged on the front of the front box body, a sample turbidity tube rack mechanism is arranged in front of the projection observation window, a switch and a touch screen are arranged on the front box body below the projection observation window, a light source projection box is arranged in the front box body, the light source projection box is a semi-enclosed structure with an opening in the front, LED light sources are arranged on the upper and lower sides of the front of the light source projection box, a reflector is arranged behind the LED light source, a black flannel is arranged on the inner surface of the light source projection box, and the LED light source is connected to the single-chip computer and the PWM board through a lead. The present invention is a powerful tool for implementing the unified standard of the visual method of the clarity inspection method, which can improve the detection accuracy and can be used for technical management and communication through digital reports.

Description

Technical Field

[0001] The invention relates to a clarity detection device, in particular to a clarity inspection umbrella shed lamp. Background Art

[0002] The 1990 edition of the Chinese Pharmacopoeia added a clarity inspection method, and the term "umbrella shed light" appeared for the first time. Under the existing technology, there is no professional inspection instrument for clarity inspection, and it is only used as a clarity meter in a darkroom environment. It is impossible to inspect the clarity of liquids below 0.5 and the clarity of colored samples. The six turbidity tubes cannot be rotated to realize the judgment of 3D space. The results are estimated values, which cannot be recorded and saved by imaging equipment and processed by computer statistics, calculations, analysis and processing. Summary of the invention

[0003] In order to solve the problems of the prior art, the present invention provides a clarity inspection umbrella shed light, which is a powerful tool for implementing the unified standard of the clarity inspection visual method, can improve the detection accuracy, and can perform technical management and communication through digital reports.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A clarity inspection umbrella shed lamp comprises a front box body and a back plate fixed at the rear of the front box body, a projection observation window is arranged on the front of the front box body, a sample turbidity tube holder mechanism is arranged in front of the projection observation window, a switch and a touch screen are arranged on the front box body below the projection observation window, the switch and the touch screen are respectively connected to a power supply, a single-chip computer and a PWM board arranged inside the front box body through power lines, the power supply is connected to a power interface on the side wall of the front box body, a light source projection box is arranged in the front box body, the light source projection box is a semi-enclosed structure with an opening at the front, LED light sources are respectively arranged on the upper and lower sides of the front of the light source projection box, a reflector is arranged behind the LED light source, black velvet is arranged on the inner surface of the light source projection box, and the LED light source is connected to the single-chip computer and the PWM board through leads.

[0006] The sample turbidity tube rack mechanism comprises a bracket fixed below the projection observation window, a worm driven by a motor is arranged inside the lower part of the bracket, a worm wheel which cooperates with the worm wheel for transmission is arranged on the worm, and a rotating chassis is arranged on the top of the worm wheel.

[0007] A handle is arranged at the outer end of the worm.

[0008] The LED light source is a long LED light-emitting board, which is fixed by a lamp stand and supported by aluminum material. An arc-shaped reflector is arranged behind the long LED light-emitting board, and a white reflective film is arranged on the reflector.

[0009] The long LED light-emitting panel displays four colors of light: red, green, blue and white, which are adjusted through a PWM light source regulator.

[0010] A camera is arranged on the front top of the light source projection box, and the camera is electrically connected to the single chip microcomputer.

[0011] The light source projection box is supported and connected inside the front box body through an upper column and a lower column.

[0012] A handle is provided on the top of the front box body.

[0013] The top of the front box is connected with a mobile phone holder through a universal bracket.

[0014] The invention adopts the latest LED light emitting diodes to be densely arranged on a long strip aluminum substrate, and a nano-particle glue is uniformly coated on the upper layer of the LED light emitting diodes to make the light scattering uniform. The LED light emitting diodes adopt four colors, namely white composite light color, single wavelength red (622-627nm); green (520-525nm); and blue (452-457nm), which are respectively fixed on a lamp holder, and are uniformly projected from the upper and lower sides to a projection observation window after being mixed with a reflective film. A micro camera is installed above the upper lamp holder at a position directly opposite to the sample turbidity tube, and a black background is made of plush cloth into a large arc shape to reduce reflection points. An automatic rotating device is added at the lower part of the turbidity tube bracket in front of the projection observation window (through a 90-degree turning of a worm gear), so that the turbidity tube can be controlled to rotate automatically and realize three-dimensional observation. A camera or a mobile phone clip is added in front of the projection observation window for easy photography.

[0015] The beneficial effects brought by the technical solution provided by the present invention are:

[0016] The present invention uses LED light emitting diode technology and arranges them densely, so that local uniform light spots are gathered into a surface light source. After being mixed by an arc surface reflection film, the light spots are emitted onto a detection standard and a sample, so that the background is evenly scattered above and below, and the light color is changed. The single chip microcomputer controls the red, green and blue light intensities to be changed into light colors consistent with the color of the colored sample, and the light intensity is precisely controlled to reach 1000Lx (lux) to meet the clarity detection requirements and touch screen operation; the six turbidity tubes can automatically control the rotation speed at the same time, breaking through the two-dimensional plane observation (360° / 3); the computer digital image analysis calculates the optical density value (OD), and saves the digital picture report, which greatly improves the convenience and accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural decomposition diagram of a clarity inspection umbrella shed light of the present invention;

[0019] Figure 2 A circuit principle block diagram of a clarity inspection umbrella shed lamp of the present invention;

[0020] Figure 3 The present invention is a schematic diagram of the LED light source structure of a clarity inspection umbrella shed lamp. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Embodiment 1

[0023] As attached Figure 1 As shown, the present embodiment provides a clarity inspection umbrella shed lamp, comprising a front box body 1 and a back plate 2 fixed behind the front box body 1, a projection observation window 3 is arranged on the front of the front box body 1, a sample turbidity tube holder mechanism is arranged in front of the projection observation window 3, a switch 4 and a touch screen 5 are arranged on the front box body 1 below the projection observation window 3, the switch 4 and the touch screen 5 are respectively connected to a power supply 6, a single-chip microcomputer and a PWM board 8 arranged inside the front box body 1 through power lines, the power supply 6 is connected to a power interface 9 on the side wall of the front box body 1, a light source projection box 10 is arranged in the front box body 1, the light source projection box 10 is a semi-enclosed structure with an opening at the front, LED light sources 11 are respectively arranged on the upper and lower sides of the front of the light source projection box 10, a reflector 12 is arranged behind the LED light source, a black velvet cloth 13 is arranged on the inner surface of the light source projection box 10, and the LED light source 11 is connected to the single-chip microcomputer and the PWM board 8 through a lead 14.

[0024] The sample turbidity tube rack mechanism of this embodiment includes a bracket 15 fixed below the projection observation window 3, a worm 17 driven by a motor 16 is arranged on the inner side of the lower part of the bracket 15, a worm wheel 18 is arranged on the worm 17 to cooperate with the worm 17, and a rotating chassis 19 is arranged on the top of the worm wheel 18. A handle 20 is arranged at the outer end of the worm 17. After the contrast solution is added to the turbidity tube, it is placed above the corresponding rotating chassis 19. By controlling the rotation of the worm wheel, the rotating chassis 19 can be rotated, thereby driving the turbidity tube above to rotate, and realizing multi-angle measurement comparison.

[0025] As attached Figure 3 As shown, the LED light source of this embodiment is a long LED light-emitting board, which is supported and fixed by a lamp frame fixing aluminum material 21. An arc-shaped reflector 12 is arranged behind the long LED light-emitting board, and a white reflective film 22 is arranged on the reflector 12.

[0026] The long LED light-emitting board displays red, green, blue and white light respectively, which is adjusted by the PWM light source regulator. The LED light-emitting diode adopts four colors, namely white composite light color, single wavelength red (622-627nm); green (520-525nm); blue (452-457nm) and is fixed on the lamp frame. After being mixed with the reflective film, it is evenly projected from the upper and lower ends onto the projection observation window 3.

[0027] For the convenience of shooting, a camera 23 is provided at the front top of the light source projection box 10, and the camera 23 is electrically connected to the single chip microcomputer and the PWM board 8. The light source projection box 10 is supported and connected to the inside of the front box body 1 through an upper column 24 and a lower column 25. For the convenience of movement, a handle 26 is provided at the top of the front box body 1.

[0028] To facilitate mobile phone photography, a mobile phone holder 7 is connected to the top of the front box body 1 via a universal bracket 27 .

[0029] The working principle of the clarity inspection umbrella shed lamp of this embodiment is as follows:

[0030] Step 1: Turn on the instrument, press the calibration button on the screen to automatically calibrate the light source to white, and the illumination reaches 1000Lx. Prepare the standard turbidity solution 0.5, 1, 2, 3, 4 and the sample according to the pharmacopoeia standard, pour them into the standard turbidity tube and reach the height of 40mm specified in the pharmacopoeia, and place them in the 1st, 2nd, 3rd, 4th and 5th positions of the automatic rotating bracket in front of the projection observation window 3 in order, and place the sample in the 6th position.

[0031] Step 2: Press the test button on the screen, the internal micro camera captures the color of the sample turbidity tube and transmits it to the single-chip computer to calculate the three primary color values ​​of R (red), G (green), and B (blue) (0--255), and gives the control values ​​of red light, green light, and blue light based on this value, so that the light color of the light source room becomes consistent with the color of the sample turbidity tube. At this time, observe with your eyes, and the distance between your eyes and the turbidity tube should be controlled at about 25-30cm, and preliminarily judge whether the sample is between number and number.

[0032] Step 3: Put the sample turbidity tube in the middle (number - sample - number), and push the standard turbidity tubes to the right in turn. Press the rotation key on the screen, + is the acceleration key, - is the deceleration key. After adjusting the speed, observe the turbidity tube rotating once again with your eyes, and comprehensively judge whether the clarity of the sample is between number and number of the standard turbidity tube.

[0033] Step 4: Expand the mobile phone holder on the top of the instrument and clamp the mobile phone or camera. Adjust the focal length and field of view and take pictures. Use WeChat or QQ to send pictures to the computer (for the camera, remove the memory card and copy it to the computer).

[0034] Step 5: Use professional software on the computer to count and calculate the optical density value (OD) of the sample and mark it in the image data.

[0035] Step 6: After the experiment, remove the mobile phone or camera, then take out the standard turbidimetric tube and sample turbidimetric tube, and turn off the power switch.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clarity inspection umbrella shed light, comprising a front box body and a back plate fixed behind the front box body, characterized in that: A projection observation window is arranged on the front of the front box, a sample turbidity tube holder mechanism is arranged in front of the projection observation window, a switch and a touch screen are arranged on the front box below the projection observation window, the switch and the touch screen are respectively connected to a power supply, a single-chip computer and a PWM board arranged inside the front box through power lines, the power supply is connected to a power interface on the side wall of the front box, a light source projection box is arranged in the front box, the light source projection box is a semi-enclosed structure with an opening in the front, LED light sources are respectively arranged on the upper and lower sides of the front of the light source projection box, a reflector is arranged behind the LED light source, a black flannel is arranged on the inner surface of the light source projection box, and the LED light source is connected to the single-chip computer and the PWM board through leads; The sample turbidity tube rack mechanism comprises a bracket fixed below the projection observation window, a worm driven by a motor is arranged on the inner side of the lower part of the bracket, a worm wheel which cooperates with the worm wheel for transmission is arranged on the worm, and a rotating chassis is arranged on the top of the worm wheel.

2. The clarity inspection umbrella shed light according to claim 1, characterized in that: A handle is arranged at the outer end of the worm.

3. The clarity inspection umbrella shed light according to claim 1, characterized in that: The LED light source is a long LED light-emitting board, which is fixed by a lamp stand and an aluminum support. An arc-shaped reflector is arranged behind the long LED light-emitting board, and a white reflective film is arranged on the reflector.

4. The clarity inspection umbrella shed light according to claim 3, characterized in that: The long LED light-emitting panel respectively displays red, green, blue and white light, which is adjusted by a PWM light source regulator.

5. The clarity inspection umbrella shed light according to claim 1, characterized in that: A camera is arranged on the front top of the light source projection box, and the camera is electrically connected to the single chip microcomputer.

6. The clarity inspection umbrella shed light according to claim 1, characterized in that: The light source projection box is supported and connected inside the front box body through an upper column and a lower column.

7. The clarity inspection umbrella shed light according to claim 1, characterized in that: A handle is arranged on the top of the front box body.

8. The clarity inspection umbrella shed light according to claim 1, characterized in that: The top of the front box is connected with a mobile phone bracket through a universal bracket.

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