CN204904801U - Display device is measured to light source based on LM3915 - Google Patents
Display device is measured to light source based on LM3915 Download PDFInfo
- Publication number
- CN204904801U CN204904801U CN201520489521.8U CN201520489521U CN204904801U CN 204904801 U CN204904801 U CN 204904801U CN 201520489521 U CN201520489521 U CN 201520489521U CN 204904801 U CN204904801 U CN 204904801U
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- Prior art keywords
- circuit
- display device
- signal amplification
- control circuit
- light source
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Liquid Crystal Display Device Control (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The utility model discloses a display device is measured to light source based on LM3915 comprises light signal reception circuit, signal amplification circuit, control circuit and luminous intensity display circuit, and light signal reception circuit is connected with signal amplification circuit, and signal amplification circuit and control circuit are connected, control circuit and luminous intensity demonstration circuit connection, control circuit the LM3915 chip has, smooth signal reception circuit photosensitive diode has, signal amplification circuit the LM308A chip has, the luminous intensity display circuit emitting diode has. The utility model discloses simple structure, convenient to use, the technique is reasonable. Display device shows with the color mode, has improved display device's demonstration definition to make that the user is clear to find out the information that shows on the LCD screen.
Description
Technical field
The utility model belongs to a kind of measuring equipment, is specifically related to a kind of light source measurement display device based on LM3915.
Background technology
In modern society, the various diseases of human health and life security are threatened to get more and more.At present, for numerous diseases treatment mainly with prevention and be viewed as master.User measures physiological parameter by various Medical measurement device, thus obtains various related data information.Medical measurement device can comprise cardiographic detector, blood oxygen measuring device or temperature sounder etc.For heart disease, user measures cardiogram by cardiographic detector, and knows the related data information of heart fast by observing Electrocardiographic form.In prior art, liquid crystal display is generally single color LCD screen, and this single color LCD screen shows in black and white mode.Poor with the display device display resolution that black and white mode carries out showing, thus cause user clearly cannot find out the information of liquid crystal screen display.
Utility model content
The purpose of this utility model is to provide a kind of light source measurement display device based on LM3915, to solve the deficiency existed in above-mentioned technology.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of light source measurement display device based on LM3915, be made up of optical signal receiving circuit, signal amplification circuit, control circuit and light intensity display circuit, optical signal receiving circuit is connected with signal amplification circuit, signal amplification circuit is connected with control circuit, and control circuit is connected with light intensity display circuit.
Described control circuit has LM3915 chip.
Described optical signal receiving circuit has photodiode.
Described signal amplification circuit has LM308A chip.
Described light intensity display circuit has light emitting diode.
The utility model structure is simple, and easy to use, technology is reasonable.Display device shows with color mode, improves the display resolution of display device, thus makes user clearly find out the information of liquid crystal screen display.
Accompanying drawing explanation
Fig. 1 is construction module figure of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of light source measurement display device based on LM3915, be made up of optical signal receiving circuit, signal amplification circuit, control circuit and light intensity display circuit, optical signal receiving circuit is connected with signal amplification circuit, signal amplification circuit is connected with control circuit, control circuit is connected with light intensity display circuit, described control circuit has LM3915 chip, described optical signal receiving circuit has photodiode, described signal amplification circuit has LM308A chip, and described light intensity display circuit has light emitting diode.
Claims (5)
1. the light source measurement display device based on LM3915, be made up of optical signal receiving circuit, signal amplification circuit, control circuit and light intensity display circuit, it is characterized in that: optical signal receiving circuit is connected with signal amplification circuit, signal amplification circuit is connected with control circuit, and control circuit is connected with light intensity display circuit.
2. the light source measurement display device based on LM3915 according to claim 1, is characterized in that: described control circuit has LM3915 chip.
3. the light source measurement display device based on LM3915 according to claim 1, is characterized in that: described optical signal receiving circuit has photodiode.
4. the light source measurement display device based on LM3915 according to claim 1, is characterized in that: described signal amplification circuit has LM308A chip.
5. the light source measurement display device based on LM3915 according to claim 1, is characterized in that: described light intensity display circuit has light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489521.8U CN204904801U (en) | 2015-07-09 | 2015-07-09 | Display device is measured to light source based on LM3915 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489521.8U CN204904801U (en) | 2015-07-09 | 2015-07-09 | Display device is measured to light source based on LM3915 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904801U true CN204904801U (en) | 2015-12-23 |
Family
ID=54926962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489521.8U Expired - Fee Related CN204904801U (en) | 2015-07-09 | 2015-07-09 | Display device is measured to light source based on LM3915 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204904801U (en) |
-
2015
- 2015-07-09 CN CN201520489521.8U patent/CN204904801U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160709 |