CN201053900Y - Quick-speed spectrophotometer - Google Patents
Quick-speed spectrophotometer Download PDFInfo
- Publication number
- CN201053900Y CN201053900Y CNU2007200406010U CN200720040601U CN201053900Y CN 201053900 Y CN201053900 Y CN 201053900Y CN U2007200406010 U CNU2007200406010 U CN U2007200406010U CN 200720040601 U CN200720040601 U CN 200720040601U CN 201053900 Y CN201053900 Y CN 201053900Y
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- Prior art keywords
- light
- cylindrical lens
- coupled system
- inlet slot
- quick
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- Expired - Lifetime
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- Spectrometry And Color Measurement (AREA)
Abstract
The utility model relates to a rapid light-splitting photometer which comprises a light source, a photospot coupled system, a light-incoming slit, a spectroscopic analyzer and a detector system, wherein, a cylindrical lens is arranged between the photospot coupled system and the light-incoming slit. The utility model adopts the photospotting property of the cylindrical lens; when a light source arrives at the cylindrical lens after being aggregated through the photospot coupled system, light is again aggregated by the cylindrical lens to be the linear light spot to approach the light-incoming slit. Compared with the circular light spot that is aggregated with the prior art, the linear light spot can aggregate more light energy, thereby more light beams can enter into the light-incoming slit and the light energy can be multiplied to improve the signal-noise ratio of the instrument, thereby favoring improving the detection precision of the weak spectral signal.
Description
Technical field
The utility model relates to a kind of color measurement instrument, relates in particular to a kind of quick-speed spectrophotometer.
Background technology
Quick-speed spectrophotometer is one of physical and chemical experiment chamber analytical instrument commonly used, it is widely used in paper-making pulping, textile printing and dyeing, coating and printing ink, medical and health, clinical examination, biological chemistry, petrochemical complex, department such as environment measuring and quality control, as shown in Figure 1, general quick-speed spectrophotometer is by light source, the optically focused coupled system, light inlet slot, optical spectrum analyser, detector system is formed, such quick-speed spectrophotometer all is provided with the optically focused coupled system before optical spectrum analyser, and measured object is placed on integrating sphere measures a mouthful place, sample reflection ray through the moment illumination of pulse xenon lamp, be polymerized to the light inlet slot of monochromator by the optically focused coupled system before, light inlet slot is meant the slit that is formed by a pair of dividing plate on light-path, be used for regulating monochromatic purity of incident and intensity, also directly influence definition, light inlet slot can be regulated between the 0-0.2mm width, looks to resemble a narrow rectangle.As shown in Figure 2, after light source is through the optically focused coupled system, can form the hot spot of a circle, and be incident upon on the light inlet slot, because the light inlet slot width is very little, hot spot has only small part light to enter optical spectrum analyser by light inlet slot, the luminous energy that expression just enters monochromator is very little, must influence the measuring accuracy of quick-speed spectrophotometer light signal, and measuring accuracy is lower.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, provides a kind of light signal measuring accuracy higher quick-speed spectrophotometer.
For achieving the above object, the utility model adopts a kind of quick-speed spectrophotometer, comprises light source, optically focused coupled system, light inlet slot, optical spectrum analyser, detector system, and a cylindrical lens is set between optically focused coupled system and light inlet slot.
Light inputting end one side that the utility model further is set to light inlet slot forms die cavity, and cylindrical lens vertically is arranged in the die cavity, and aims at the light inputting end of light inlet slot, and the other end of cylindrical lens connects the output terminal of optically focused coupled system.
The utility model provides a kind of quick-speed spectrophotometer, between the optically focused coupled system of quick-speed spectrophotometer and light inlet slot a cylindrical lens is set.The utility model is exactly an optically focused characteristic of utilizing cylindrical lens, after light source passes through the polymerization of optically focused coupled system, reach cylindrical lens, by cylindrical lens optically focused, pool the nearly light inlet slot of Line of light patch once more, converge the hot spot of the circle that forms compared to existing technology, it is more that the wire hot spot is assembled luminous energy, and the light that therefore enters light inlet slot is more, and luminous energy strengthens at double, the signal to noise ratio (S/N ratio) of instrument is improved, help improving the precision that the faint light spectrum signal detects.
Description of drawings
Fig. 1 is the utility model background technology internal configurations structural drawing.
Fig. 2 is that the utility model background technology circular light spot and light inlet slot cooperate synoptic diagram.
Fig. 3 is the utility model embodiment cylindrical lens optically focused synoptic diagram.
Fig. 4 is the structural representation that the utility model embodiment cylindrical lens and light inlet slot cooperate.
Fig. 5 is the A-A profile of Fig. 4.
Embodiment
Shown in Fig. 4,5, specific embodiment of the utility model is a kind of quick-speed spectrophotometer, comprise light source, optically focused coupled system 1, light inlet slot 2, optical spectrum analyser 3, detector system, light inputting end 21 1 sides at light inlet slot 2 form die cavity 5, cylindrical lens 4 vertically is arranged in the die cavity 5, and the light inputting end 21 of aligning light inlet slot 2, the other end of cylindrical lens 4 connects the output terminal 11 of optically focused coupled system 1.
As shown in Figure 3, the utility model is exactly an optically focused characteristic of utilizing cylindrical lens 4, after light source passes through 1 polymerization of optically focused coupled system, reaches cylindrical lens 4, once more by cylindrical lens 4 optically focused, pool the nearly light inlet slot 2 of Line of light patch, converge the hot spot of the circle that forms compared to existing technology, it is more that the wire hot spot is assembled luminous energy, therefore the light that enters light inlet slot 2 is more, luminous energy strengthens at double, and the signal to noise ratio (S/N ratio) of instrument is improved, and helps improving the precision that the faint light spectrum signal detects.
Claims (2)
1. a quick-speed spectrophotometer comprises light source, optically focused coupled system (1), light inlet slot (2), optical spectrum analyser (3), detector system, it is characterized in that: between optically focused coupled system (1) and light inlet slot (2) cylindrical lens (4) is set.
2. quick-speed spectrophotometer according to claim 1, it is characterized in that: light inputting end (21) one sides of described light inlet slot (2) form die cavity (5), cylindrical lens (4) vertically is arranged in the die cavity (5), and the light inputting end (21) of aligning light inlet slot (2), the other end of cylindrical lens (4) connects the output terminal (11) of optically focused coupled system (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200406010U CN201053900Y (en) | 2007-07-09 | 2007-07-09 | Quick-speed spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200406010U CN201053900Y (en) | 2007-07-09 | 2007-07-09 | Quick-speed spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053900Y true CN201053900Y (en) | 2008-04-30 |
Family
ID=39393563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200406010U Expired - Lifetime CN201053900Y (en) | 2007-07-09 | 2007-07-09 | Quick-speed spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053900Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871923A (en) * | 2009-04-22 | 2010-10-27 | 北京普源精仪科技有限责任公司 | Liquid phase measurement device |
-
2007
- 2007-07-09 CN CNU2007200406010U patent/CN201053900Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871923A (en) * | 2009-04-22 | 2010-10-27 | 北京普源精仪科技有限责任公司 | Liquid phase measurement device |
| CN101871923B (en) * | 2009-04-22 | 2014-12-10 | 北京普源精电科技有限公司 | Liquid phase measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU JIAYI INSTRUMENT CO., LTD. Free format text: FORMER OWNER: QIU JIAYI Effective date: 20110816 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325011 WENZHOU, ZHEJIANG PROVINCE TO: 325000 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110816 Address after: 325000 B101 room, Pioneer Park, hi tech Industrial Park, Zhejiang, Wenzhou Patentee after: Wenzhou Jiayi Instrument Co.,Ltd. Address before: Ring Road riverside street of Lucheng District Wenzhou 325011 Zhejiang province 4 Lane 1, room 402 Patentee before: Qiu Jiayi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |
|
| CX01 | Expiry of patent term |