CN105276450A - Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector - Google Patents
Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector Download PDFInfo
- Publication number
- CN105276450A CN105276450A CN201510705287.2A CN201510705287A CN105276450A CN 105276450 A CN105276450 A CN 105276450A CN 201510705287 A CN201510705287 A CN 201510705287A CN 105276450 A CN105276450 A CN 105276450A
- Authority
- CN
- China
- Prior art keywords
- light
- circuit board
- blood constituent
- light source
- source system
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a reflection-type LED (Light Emitting Diode) light source system in a near-infrared noninvasive blood constituent detector and belongs to the field of optical design. The system comprises at least one LED light source, an annular circuit board, a concave reflecting mirror and a light pass hole, wherein LEDs are mounted on the annular circuit board in an equivalent interval; the annular circuit board, the concave reflecting mirror and the light pass hole are coaxially arranged; and light rays emitted by the LED light source irradiate the concave reflecting mirror, converged by the concave reflecting mirror and then pass through the hollow part of the annular circuit board to form a light spot via the light pass hole. Compared with the structure of the traditional light source system, the light source system has the advantages that the structure is obvious and concise; the number of optical elements is small; the illumination uniformity is improved while the optical energy loss is reduced; the calorific value of a light source is effectively controlled; the detection precision and stability of the near-infrared noninvasive blood constituent detector are improved; and the market of a novel portable noninvasive blood constituent detector is favorably opened.
Description
Technical field
The invention belongs to optical field near infrared no-wound blood constituent detector, be specifically related to the reflecting LED light-source system in a kind of near infrared no-wound blood constituent detector.
Background technology
Blood biochemical inspection is one of basic means of Gernral Check-up.The advantages such as near-infrared spectral analysis technology can't harm fast because having, Simultaneous Analysis for Multicomponent, have become without one of hot spot technology creating blood constituent detect delay field most prospect.Light-source system is part important near infrared no-wound blood constituent detecting instrument, provide effective detect spectral region while, light source converges in the Stability and veracity that the illumination at test position and the degree of being evenly distributed can have influence on testing result.And for pursuing the portability without wound blood constituent detecting instrument, when touching the mark requirement, light-source system structure should be compact as far as possible.
The light-source system structure of present stage, many employing halogen tungsten lamps are light source, transmission type optical system.The spot size that this structure light source converges is less, is convenient to measure.But the problems such as this structure exists, and caloric value is high, luminous flux is lower (easily cause instrument signal to noise ratio lower), light source is longer to test position distance, capacity usage ratio is low, light spot illumination is uneven.
Summary of the invention
In order to solve problems of the prior art, the invention provides the reflecting LED light-source system in a kind of near infrared no-wound blood constituent detector, this system uniform-illumination, compact conformation, proposing the reflecting light origin system using LED as light source.
The technical scheme that technical solution problem of the present invention adopts is as follows:
Near infrared no-wound blood constituent detects the reflecting LED light-source system of China National Instruments Import & Export Corporation, and this system comprises: at least one LED light source, annular circuit board, concave mirror and light hole; LED is equidistantly arranged on annular circuit board; Annular circuit board, concave mirror and light hole are coaxially placed; Light hole and concave mirror lay respectively at the both sides of annular circuit board, and LED light source emits beam and is radiated on concave mirror, and after being assembled by concave mirror reflection, the hollow space through annular circuit board forms hot spot via light hole.
The invention has the beneficial effects as follows: the present invention experimentally result optimizes 9 LED light sources, and devises reflective lamp optical system.Compared with conventional light source system architecture, this light-source system structure is significantly simplified, optical element surface quantity is few, illumination uniformity is improve while reduction light energy losses, and effectively control light source caloric value, improve accuracy of detection and the stability of near infrared no-wound blood component analyzing instrument, be conducive to starting novel portable without wound blood component analyzing instrument market.
Accompanying drawing explanation
Reflecting LED light-source system structural representation in Fig. 1 near infrared no-wound blood constituent of the present invention detector.
Reflecting LED light-source system in Fig. 2 near infrared no-wound blood constituent of the present invention detector installs the annular circuit board front view of LED.
Reflecting LED light-source system preferred structure schematic diagram in Fig. 3 near infrared no-wound blood constituent of the present invention detector.
In figure: 1, LED, 2, annular circuit board, 3, hyperbolic concave mirror, 4, light hole, 5, convex lens, 6, LED1 light-emitting area, 7, hyperbolic concave mirror front surface summit and 8, convex lens front surface summit.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details.
As shown in Figure 1, the reflecting LED light-source system near infrared no-wound blood constituent detector, this system comprises: at least one LED1 light source, annular circuit board 2, hyperbolic concave mirror 3 and light hole 4; Described LED1 is equidistantly arranged on annular circuit board 2, and annular circuit board 2, hyperbolic concave mirror 3 and light hole 4 are coaxially placed; Light hole 4 and hyperbolic concave mirror 3 lay respectively at the both sides of annular circuit board 2, LED1 light source emits beam and is radiated on concave mirror 3, after reflecting convergence by concave mirror 3, the hollow space through annular circuit board 2 forms uniform convergence hot spot via light hole 4; The radius of hyperbolic concave mirror 3 is greater than the radius of annular circuit board 2.
As shown in Figure 2, the scope of LED1 centre wavelength is 680nm ~ 1600nm, in the present embodiment, choosing 9 LED1 is arranged on annular circuit board 2, and the centre wavelength that each LED1 is corresponding is 910nm, 940nm, 970nm, 980nm, 1050nm, 1070nm, 1200nm, 1300nm and 1450nm.LED1 light source luminescent area is not more than 0.5mm*0.5mm, and each LED1 radiant power is not less than 50mW; The internal diameter of annular circuit board 2 is 17mm, and external diameter is 23mm; LED1 center be all positioned at radius be 20mm circumferentially.
In the present embodiment one, be 10.4mm in LED1 light-emitting area 6 apart from the hyperbolic concave mirror 3 front surface summit 7 in front, hyperbolic concave mirror 3 size radius is 25mm, and curvature is 0.0133, and quadratic surface coefficient is 4.72, and center thickness is 1mm.Place light hole 4 at 18mm place, LED1 light-emitting area rear, light hole 4 diameter is 8mm.The light that LED1 light source sends, after hyperbolic concave mirror 3 reflects, is converged to a uniform light spots at light hole 4 place.
In embodiment two, on the basis of embodiment one, be positioned at annular circuit board 2 and the identical convex lens 5 of two curvature radius are set with in the middle of light hole 4, with LED1 light-emitting area 6 apart from the hyperbolic concave mirror 3 front surface summit 7 in front for 16mm, convex lens 5 front surface summit 8 apart from rear is 16mm, and annular circuit board 2 is arrived apart from about 3.5mm in convex lens 5 front surface summit 8; After the center of LED1 light-emitting area 6, light hole 4 is placed at 26.3mm place, and light hole 4 diameter is 8mm.The light that LED1 light source sends, after hyperbolic concave mirror 3 reflects, assembles further through convex lens 5, is converged to a uniform light spots at light hole 4 place.Convex lens 5 also can be parabola concave mirror.
Claims (6)
1. the reflecting LED light-source system near infrared no-wound blood constituent detector, is characterized in that, this system comprises: at least one LED light source, annular circuit board, concave mirror and light hole; Described LED is equidistantly arranged on annular circuit board; Annular circuit board, concave mirror and light hole are coaxially placed; Light hole and concave mirror lay respectively at the both sides of annular circuit board; LED light source emits beam and is radiated on concave mirror, and after being assembled by concave mirror reflection, the hollow space through annular circuit board forms hot spot via light hole.
2. the reflecting LED light-source system near infrared no-wound blood constituent detector according to claim 1, is characterized in that, the centre wavelength scope of described LED is 680nm ~ 1600nm.
3. the reflecting LED light-source system near infrared no-wound blood constituent detector according to claim 2, it is characterized in that, the centre wavelength of described LED is 910nm, 940nm, 970nm, 980nm, 1050nm, 1070nm, 1200nm, 1300nm and 1450nm best results.
4. the reflecting LED light-source system near infrared no-wound blood constituent detector according to claim 1, is characterized in that, described concave mirror is hyperbolic concave mirror or parabola concave mirror.
5. the reflecting LED light-source system near infrared no-wound blood constituent detector according to claim 1, is characterized in that, this system also comprises the convex lens be positioned in the middle of annular circuit board and light hole.
6. the reflecting LED light-source system near infrared no-wound blood constituent detector according to claim 5, it is characterized in that, two curvature radius of described convex lens are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705287.2A CN105276450A (en) | 2015-10-27 | 2015-10-27 | Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705287.2A CN105276450A (en) | 2015-10-27 | 2015-10-27 | Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276450A true CN105276450A (en) | 2016-01-27 |
Family
ID=55145950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510705287.2A Pending CN105276450A (en) | 2015-10-27 | 2015-10-27 | Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154564A (en) * | 2016-05-19 | 2019-01-04 | 莱曼微设备有限公司 | non-invasive blood analysis |
| CN109283134A (en) * | 2017-07-20 | 2019-01-29 | 东莞市沃德普自动化科技有限公司 | A kind of light source line space design method for the purpose of image uniform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009011753A (en) * | 2007-07-09 | 2009-01-22 | Rarugo:Kk | Blood sugar level measuring device |
| CN101536910A (en) * | 2009-04-09 | 2009-09-23 | 上海理工大学 | Pulmonary artery blood oxygen saturation monitoring device based on optical fiber sensor |
| CN102697509A (en) * | 2012-05-28 | 2012-10-03 | 中国科学院长春光学精密机械与物理研究所 | Efficient spectrum collection device and efficient spectrum collection method used for near infrared noninvasive biochemical analysis |
| CN103629574A (en) * | 2013-10-31 | 2014-03-12 | 中国科学院合肥物质科学研究院 | Multi-LED combination broadband light source device based on multi-edge reflection cone |
| CN104114090A (en) * | 2011-12-23 | 2014-10-22 | 通用电气公司 | Method, arrangement, sensor, and computer program product for non-invasively measuring hemoglobin concentrations in blood |
-
2015
- 2015-10-27 CN CN201510705287.2A patent/CN105276450A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009011753A (en) * | 2007-07-09 | 2009-01-22 | Rarugo:Kk | Blood sugar level measuring device |
| CN101536910A (en) * | 2009-04-09 | 2009-09-23 | 上海理工大学 | Pulmonary artery blood oxygen saturation monitoring device based on optical fiber sensor |
| CN104114090A (en) * | 2011-12-23 | 2014-10-22 | 通用电气公司 | Method, arrangement, sensor, and computer program product for non-invasively measuring hemoglobin concentrations in blood |
| CN102697509A (en) * | 2012-05-28 | 2012-10-03 | 中国科学院长春光学精密机械与物理研究所 | Efficient spectrum collection device and efficient spectrum collection method used for near infrared noninvasive biochemical analysis |
| CN103629574A (en) * | 2013-10-31 | 2014-03-12 | 中国科学院合肥物质科学研究院 | Multi-LED combination broadband light source device based on multi-edge reflection cone |
Non-Patent Citations (4)
| Title |
|---|
| 刘振尧等: "可见－近红外光谱测定血红蛋白的等效波段选择", 《光学精密工程》 * |
| 张婉洁等: "基于平行因子分析法提高近红外无创血糖校正模型稳健性的研究", 《化学学报》 * |
| 张广军等: "基于小波变换的噪声及背景同时去除方法在血糖近红外无创检测中的应用", 《红外与毫米波学报》 * |
| 樊奕辰等: "经验模态分解法在近红外无创血红蛋白检测中的应用研究", 《光谱学与光谱分析》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154564A (en) * | 2016-05-19 | 2019-01-04 | 莱曼微设备有限公司 | non-invasive blood analysis |
| CN109283134A (en) * | 2017-07-20 | 2019-01-29 | 东莞市沃德普自动化科技有限公司 | A kind of light source line space design method for the purpose of image uniform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101091791B1 (en) | Integrating sphere photometer and measureing method of the same | |
| US8193502B2 (en) | Optical absorption gas sensor | |
| JP2005270979A5 (en) | ||
| RU2009110170A (en) | LIGHT SOURCE WITH PHOTOSENSOR LIGHT | |
| TWI622756B (en) | Standard light source and measurement method using the same | |
| CN105276450A (en) | Reflection-type LED (Light Emitting Diode) light source system in near-infrared noninvasive blood constituent detector | |
| KR101066147B1 (en) | reflection lens for LED | |
| KR20180097131A (en) | Light emitting diode lamp | |
| JP2010217109A (en) | Light emitting element measurement device | |
| JP2013156080A (en) | Luminescence property measuring device and method | |
| CN103376632A (en) | Light source structure of projector | |
| CN202255846U (en) | Device for detecting service life of light-emitting diodes (LED) in real time | |
| CN205278875U (en) | Near -infrared does not have reflective LED light source system who creates in blood composition detector | |
| CN105572058A (en) | Sample analyzer and absorbance measurement device thereof | |
| US9568661B2 (en) | Light guiding body and lighting system | |
| CN204154641U (en) | Sample analyser and absorbance measuring device thereof | |
| WO2019148699A1 (en) | Light source device and optical lens test system | |
| US20210293617A1 (en) | Spectrometer | |
| JP2011226869A (en) | Emission measuring device | |
| JP7085758B2 (en) | Optical measuring device, light source device | |
| CN207439908U (en) | Adjustable LED lamp and halogen lamp combined light source | |
| CN207882141U (en) | A kind of light source transmitting and signal collection system for spectrum analysis | |
| CN102748617A (en) | Reverse Cassegrain type LED uniform-light illumination system | |
| CN108195774A (en) | A kind of light source for spectrum analysis emits and signal collection system | |
| RU185218U1 (en) | LIGHTING DEVICE FOR INSTALLATION FOR MEASURING THE OPTICAL DENSITY OF A SAMPLE IN REFLECTED LIGHT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |
|
| RJ01 | Rejection of invention patent application after publication |