CN2743797Y - Light emitting device for photoelectric measurer - Google Patents
Light emitting device for photoelectric measurer Download PDFInfo
- Publication number
- CN2743797Y CN2743797Y CN 200420081603 CN200420081603U CN2743797Y CN 2743797 Y CN2743797 Y CN 2743797Y CN 200420081603 CN200420081603 CN 200420081603 CN 200420081603 U CN200420081603 U CN 200420081603U CN 2743797 Y CN2743797 Y CN 2743797Y
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- light source
- light emitting
- emitting devices
- light
- adjustment seat
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Abstract
The utility model discloses a light emitting device for the photoelectric measurer, comprising a box body, a light alignment element, a light alignment element clamping device, and a light source clamping device. One end of the light alignment element clamping device is provided with the light alignment element, and the other end is fixed on the box body; the light source clamping device comprises a light source regulating base which can move along the direction of the light axis which is vertical with a light source in a light emitting device and a light source fixed on the light source regulating base. The light source clamping device is regulated and fixed on the position where the light axis which makes the light emitting device emit light beams is coincident with the mounting position axis of the light emitting device on the box body. The light emitting device overcomes the disadvantages that the position of the light source clamping device of the existing light emitting device can not be adjusted, and the coincidence of the light axis emitting light beams with the mounting position axis is ensured relying on the precision of the mechanical process, the precise tooling equipment, the stable device property, and the strict operation sequence. The utility model can decrease the requirements for the mechanical process, the mounting, and the characteristic of the photoelectric device; accordingly, the cost is greatly reduced, and the instrument property is improved.
Description
Technical field
The utility model relates to the light emitting devices of photoelectric measurement instrument.
Background technology
Along with the continuous development of photoelectric measurement technology and perfect, the photoelectric measuring instrument instruments and meters, as semiconductor laser gas analyser, semiconductor laser dust analysis instrument etc., in numerous areas such as industrial process monitoring, environmental protection, scientific research, medical treatment, obtained application more and more widely.They mainly are made up of a light emitting devices, an optical pickup apparatus and a central analysis unit.Light emitting devices generally comprises an optical alignment component fixture and the light source anchor clamps that light source is installed that the optical alignment element is installed, and optical pickup apparatus generally comprises a beam convergence component fixture and the photoelectric sensor anchor clamps that photoelectric sensor is installed that the beam convergence element is installed.Light emitting devices and optical pickup apparatus are fixed on measured environmental chamber or the pipeline (for example metallurgy industry flue), the light beam that light source sends from light emitting devices is collimated to behind the directional light by optical alignment element (such as optical lens) and penetrates, pass behind the measured environment its transmitted light or scattered light or reflected light and converged on the photoelectric sensor detectedly by the beam convergence element (such as optical lens) in the optical pickup apparatus, the electric signal of acquisition then is sent to the central analysis unit to carry out Treatment Analysis and provides the parameter of process medium in the measured environment such as the concentration of process gas.In order to finish the smooth transmission of light signal from the transmitting terminal to the receiving end, must accomplish usually following some: 1, the light source in the light emitting devices is placed on the focal plane of optical alignment element or in the permissible error scope (guaranteeing good collimation property); 2, the photoelectric sensor in the optical pickup apparatus is placed near the focal plane of beam convergence element, (guarantees the good receiving feature that converges) thereby make the light beam of collimation incident to be converged to exactly on the sensor; 3, the optical axis of light emitting devices outgoing beam (is the center line of outgoing beam, by the decision of light source and optical alignment relative positions) (light emitting devices and optical pickup apparatus can adopt flange form with the installing and locating axle of light emitting devices, the knot that can be undone by a pull formula, the screw thread formula, or different mounting means such as locking clip formula, said installing and locating axle is corresponding flange, knot that can be undone by a pull, screw thread, or the machine center axis of locking clip etc.) overlaps (coaxial), the optical axis of optical pickup apparatus (similarly by photoelectric sensor and the decision of beam convergence relative positions) overlaps (coaxial), i.e. light emitting devices with the installing and locating axle of optical pickup apparatus, optical pickup apparatus will guarantee good collimation property respectively, converge characteristic and coaxial characteristic.When the on-the-spot installation of instrument, only need to overlap like this, can guarantee the smooth transmission and the reception of light signal by the installing and locating axle of other engineering means commonly used realization stream oriented devices.
Light emitting devices in the existing photoelectric measuring device, the optical alignment element is installed on the optical alignment component fixture, light source is fixed on the light source anchor clamps, the light source anchor clamps be fixed on the fastening casing in optical alignment component fixture rear end on, can not adjust doing to move perpendicular to the optical axis direction at light emitting devices inner light source place.By being moved along the mechanical axis direction of optical alignment component fixture, the optical alignment element can regulate the distance of light source to the optical alignment element, light source is positioned on the focal plane of optical alignment element, but the coaxial of the optical axis of light emitting devices outgoing beam and light emitting devices installing and locating axle is to guarantee by very high machining accuracy, stable device property, accurate tooling device and strict operational sequence.Do not only processing cost height like this, installation difficulty is big, be subjected to various artificial factor easily, and often because machining deviation, light source device characteristic deviation and rigging error, can cause the optical axis of light emitting devices outgoing beam not overlap with the installing and locating axle, directly influence the measuring accuracy of photoelectric measurement instrument, even can't realize the transmission of light signal from the light emitting devices to the optical pickup apparatus smoothly.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, can be as required in the position of regulating light source perpendicular to the optical axis direction at light emitting devices inner light source place, with the optical axis of the outgoing beam of guaranteeing light emitting devices and the coaxial light emitting devices that is used for photoelectric measurement instrument of installing and locating axle of light emitting devices.
The light emitting devices that is used for photoelectric measurement instrument of the present utility model, comprise casing, optical alignment element, optical alignment component fixture and light source anchor clamps, one end of optical alignment component fixture is installed the optical alignment element, the other end is fixed on the casing, it is characterized in that said light source anchor clamps are made up of light source adjustment seat that can move at the optical axis direction perpendicular to light emitting devices inner light source place and the light source that is fixed on the light source adjustment seat, on the casing when the light source adjustment seat is conditioned and is fixed in the optical axis that makes the light emitting devices outgoing beam and overlaps with the installing and locating axle of light emitting devices.
As preferably, described photoelectric measurement instrument is semiconductor laser gas analyser or semiconductor laser dust analysis instrument.
For the ease of the light source adjustment seat being regulated and fixing, on the casing through hole can be set, the optical alignment component fixture is fixed on the tank wall of through hole one side, and the light source adjustment seat is then regulated on the tank wall that is fixed on the through hole opposite side.The light source adjustment seat can be difform structure, as right cylinder, flat board etc., and is fixed on casing one side that light source on the light source adjustment seat both can be positioned at the light source adjustment seat, also can be arranged among the through hole or pass through hole to extend into the optical alignment component fixture.
As preferably, the light source adjustment seat is the cylinder with boss, and light source is fixed on cylinder microcephaly's end face, and the microcephaly of cylinder extend in the through hole, leaves the space between the hole wall of its perisporium and through hole and makes the light source adjustment seat to move up and down in through hole.
Light source adjustment seat in the utility model light emitting devices be owing to can move adjusting at the optical axis direction perpendicular to light emitting devices inner light source place, fixed after therefore can easily the light source adjustment seat being adjusted to the optical axis that makes the light emitting devices outgoing beam and the installing and locating axle position when coaxial.The light source chucking position that has overcome in the existing light emitting devices is unadjustable, waits optical axis and the coaxial shortcoming of installing and locating axle that guarantees the light emitting devices outgoing beam by machining accuracy, accurate frock entirely.Can reduce requirement, thereby greatly reduce cost, and improve the performance of instrument machining, assembling, photoelectric device characteristic.
Description of drawings
Fig. 1 is the concrete structure synoptic diagram of the utility model embodiment 1;
Fig. 2 is the concrete structure synoptic diagram of the utility model embodiment 2;
Fig. 3 is the concrete structure synoptic diagram of the utility model embodiment 3;
Fig. 4 is the synoptic diagram of the coaxial adjusting of installing and locating axle of light emitting devices outgoing beam optical axis and light emitting devices.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, the light emitting devices that is used for photoelectric measurement instrument comprises casing 1, optical alignment component fixture 3, optical alignment element 5 and light source anchor clamps 2.In Fig. 1, Fig. 2, the instantiation shown in Figure 3, optical alignment component fixture 3 is a cylinder, and optical alignment element 5 is made up of tubular lens mount 7 and the lens 6 that are fixed on the lens mount 7, and optical alignment element 5 is twisted the front end that is connected on optical alignment component fixture 3 by screw thread.Be provided with through hole 9 on casing 1, the rear end of optical alignment component fixture 3 is fixed on casing 1 through hole 9 one sides.Light source anchor clamps 2 are made up of light source adjustment seat 11 and the light source 8 that is fixed on the light source adjustment seat 11, light source 8 can be a semiconductor laser, also can be that light emitting diode, optical fiber are first-class, have on the light source adjustment seat 11 and be used for and the fixing adjustment hole 12 of tank wall 1, the aperture of adjustment hole 12 is greater than the aperture of tank wall upper screwed hole, and light source adjustment seat 11 is passed on the tank wall that adjustment hole 12 is fastened on casing 1 through hole 9 opposite sides by screw.
In Fig. 1 illustrated instantiation, light source adjustment seat 11 was the right cylinders with boss, so that processing.Light source 8 is fixed on the little end surface of right cylinder, and cylindrical microcephaly stretches in through hole 9 and the optical alignment component fixture 3, and its external diameter is less than the internal diameter of through hole 9 and optical alignment component fixture 3.In Fig. 2 illustrated instantiation, light source adjustment seat 11 was right cylinders, and light source 8 is fixed on the right cylinder end face and stretches in the through hole 9, and the light source external diameter is less than the internal diameter of through hole 9.In Fig. 3 illustrates instantiation, light source adjustment seat 11 is right cylinders of a middle indent, light source 8 is fixed on the right cylinder concave surface, and the recessed degree of depth of concave surface is greater than the light source height, even this structural design still can realize the range of adjustment of bigger light source adjustment seat under than the small through hole situation.For Fig. 1, Fig. 2, three kinds of instantiations shown in Figure 3, light source anchor clamps 11 are moved at the optical axis direction (for cited specific embodiment, also being the mechanical axis direction of optical alignment component fixture 3) perpendicular to light emitting devices inner light source place.
To regulate more convenient and prevent that light source anchor clamps 11 from moving in long-time vibration environment in order to make, can be as Fig. 1, Fig. 2, shown in Figure 3, make the part periphery of light source adjustment seat 11 be the inclined-plane, these inclined-planes and four inclined-planes that are screwed the angle of wedge piece 10 on box body wall fit, by twisting the screw on four angle of wedge pieces, extruding promotes light source adjustment seat 11 to be made it to move up and down, when the installing and locating axle of the optical axis of light emitting devices outgoing beam and light emitting devices is coaxial, passes adjustment hole 12 and tighten screw light source adjustment seat 11 is fastened on the tank wall of casing 1 through hole 9 one sides.
For the emitter cavity being realized sealing makes it to isolate with external environment, can between the inwall of the outer wall of optical alignment element 5 and optical alignment component fixture 3, on the fixedly surface of contact of optical alignment component fixture 3 and casing 1 and light source adjustment seat 11 and casing 1 seal 4 is set respectively, as 0 type rubber ring or graphite pads etc.
The light emitting devices that is used for photoelectric measurement instrument of the present utility model, its outgoing beam optical axis and the coaxial adjustment process of installing and locating axle, light emitting devices with Fig. 1 is an example, with reference to Fig. 4, the front end outside of optical alignment component fixture 3 cylinders of light emitting devices is processed with the screw thread that is used for installing in the mode of screw thread fastening light emitting devices, the installing and locating axle of this light emitting devices is exactly the central axis of this screw thread, to this instantiation, also is the mechanical axis of optical alignment component fixture 3 cylinders.With the semiconductor laser light source is example, give the light source electrified light emitting, and with a photographic plate or other tool detection optical alignment component fixture 3 nearby with the size of distant place hot spot, by regulating feasible big or small the same with the distant place hot spot nearby in the position of lens mount 7 optical alignment component fixture 3 in, so just guaranteed that light source on the focal plane of optical alignment element lens 6, guaranteed collimation.Placing a light target 13 from lens 6 a distance then, write down the position A of hot spot, with light emitting devices around installing and locating axle Rotate 180 °, write down the new position B of hot spot, regulate the position of light source adjustment seat 11 up and down, laser facula is moved on to A, the point midway C of B line, repeat above step, the position of hot spot overlaps behind hot spot and Rotate 180 °, this moment, laser light source was the direction 14 that the optical axis of light emitting devices outgoing beam overlaps with the installing and locating axle of light emitting devices, the light emitting devices that realization makes the optical axis of light emitting devices outgoing beam overlap with the installing and locating axle of light emitting devices with line direction that C is ordered.This light emitting devices can be widely used in the various occasions long to the coaxial measurement environment of having relatively high expectations, especially measuring distance.
Claims (10)
1. the light emitting devices that is used for photoelectric measurement instrument, comprise casing (1), optical alignment element (5), optical alignment component fixture (3) and light source anchor clamps (2), one end of optical alignment component fixture (3) is installed optical alignment element (5), the other end is fixed on the casing (1), it is characterized in that said light source anchor clamps (2) by can forming, on the casing (1) when light source adjustment seat (11) is conditioned and is fixed in the optical axis that makes the light emitting devices outgoing beam and overlaps with the installing and locating axle of light emitting devices in light source adjustment seat (11) that the optical axis direction of locating perpendicular to light emitting devices inner light source (8) moves and the light source (8) that is fixed on the light source adjustment seat (11).
2. the light emitting devices that is used for photoelectric measurement instrument according to claim 1 is characterized in that said photoelectric measurement instrument is semiconductor laser gas analyser or semiconductor laser dust analysis instrument.
3. the light emitting devices that is used for photoelectric measurement instrument according to claim 1, it is characterized in that having on the said casing (1) through hole (9), said optical alignment component fixture (3) is fixed on the tank wall of through hole (9) one sides, and said light source adjustment seat (11) is regulated and is fixed on the tank wall of through hole (9) opposite side.
4. the light emitting devices that is used for photoelectric measurement instrument according to claim 3, it is characterized in that said light source adjustment seat (11) is the cylinder with boss, light source (8) is fixed on cylinder microcephaly's end face, the microcephaly of cylinder stretches in the said through hole (9), between the hole wall of its perisporium and through hole (9) space is arranged.
5. the light emitting devices that is used for photoelectric measurement instrument according to claim 4 is characterized in that said light source adjustment seat (11) is the right cylinder with boss.
6. the light emitting devices that is used for photoelectric measurement instrument according to claim 1, it is characterized in that having on the said light source adjustment seat (11) and be used for and adjustment hole (12) that said casing (1) tank wall is fixing, on the tank wall that light source adjustment seat (11) is fastened on by the screw that passes adjustment hole (12).
7. the light emitting devices that is used for photoelectric measurement instrument according to claim 1, the part periphery that it is characterized in that said light source adjustment seat (11) is the inclined-plane, and the being used for inclined-plane that extruding promotes the angle of wedge piece (10) that light source adjustment seat (11) moves up and down that these inclined-planes and several piece are fixed on said casing (1) box body wall fits.
8. the light emitting devices that is used for photoelectric measurement instrument according to claim 1 is characterized in that light source (8) is semiconductor laser or light emitting diode or optical fiber head.
9. the light emitting devices that is used for photoelectric measurement instrument according to claim 1 is characterized in that said optical alignment element (5) is made up of tubular lens mount (7) and the lens (6) that are fixed on the lens mount (7).
10. the light emitting devices that is used for photoelectric measurement instrument according to claim 1 is characterized in that being respectively equipped with seal (4) between optical alignment element (5) and the optical alignment component fixture (3), between optical alignment component fixture (3) and the casing (1) and on the surface of contact of light source adjustment seat (11) and casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081603 CN2743797Y (en) | 2004-07-26 | 2004-07-26 | Light emitting device for photoelectric measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081603 CN2743797Y (en) | 2004-07-26 | 2004-07-26 | Light emitting device for photoelectric measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743797Y true CN2743797Y (en) | 2005-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081603 Expired - Fee Related CN2743797Y (en) | 2004-07-26 | 2004-07-26 | Light emitting device for photoelectric measurer |
Country Status (1)
| Country | Link |
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| CN (1) | CN2743797Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364920A (en) * | 2013-03-07 | 2013-10-23 | 江苏天瑞仪器股份有限公司 | Device for realizing pipeline light path collimation adjustment for laser online gas analyzer |
| CN103576245A (en) * | 2012-08-03 | 2014-02-12 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103760120A (en) * | 2014-01-17 | 2014-04-30 | 深圳市理邦精密仪器股份有限公司 | Diode fixing device and hemocyte analyzer using same |
| CN109375192A (en) * | 2018-12-12 | 2019-02-22 | 广州维思车用部件有限公司 | Automated driving system, laser radar and its Laser emission structure |
-
2004
- 2004-07-26 CN CN 200420081603 patent/CN2743797Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576245A (en) * | 2012-08-03 | 2014-02-12 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103576245B (en) * | 2012-08-03 | 2016-10-05 | 苏州络湾电子科技有限公司 | Optical exchange platform |
| CN103364920A (en) * | 2013-03-07 | 2013-10-23 | 江苏天瑞仪器股份有限公司 | Device for realizing pipeline light path collimation adjustment for laser online gas analyzer |
| CN103364920B (en) * | 2013-03-07 | 2015-07-08 | 江苏天瑞仪器股份有限公司 | Device for realizing pipeline light path collimation adjustment for laser online gas analyzer |
| CN103760120A (en) * | 2014-01-17 | 2014-04-30 | 深圳市理邦精密仪器股份有限公司 | Diode fixing device and hemocyte analyzer using same |
| CN103760120B (en) * | 2014-01-17 | 2016-06-01 | 深圳市理邦精密仪器股份有限公司 | The stationary installation of a kind of diode and apply the cellanalyzer of this stationary installation |
| CN109375192A (en) * | 2018-12-12 | 2019-02-22 | 广州维思车用部件有限公司 | Automated driving system, laser radar and its Laser emission structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FOCUSED PHOTONICS (HANGZHOU), LTD. Free format text: FORMER NAME: JUGUANG SCIENCE AND TECHNOLOGY (HANGZHOU) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310012 building, 199 building, No. 4, Wensanlu Road, Hangzhou, Zhejiang, Xihu District Patentee after: Focused Photonics (Hangzhou) Inc. Address before: 310012 building, 199 building, No. 4, Wensanlu Road, Hangzhou, Zhejiang, Xihu District Patentee before: Juguang Sci. & Tech. (Hangzhou) Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee after: Focused Photonics (Hangzhou) Inc. Address before: 310052 building, 199 building, No. 4, Wensanlu Road, Hangzhou, Zhejiang, Xihu District Patentee before: Focused Photonics (Hangzhou) Inc. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20130726 |