CN202093722U - Multifunctional collimator tube used for photoelectric teaching - Google Patents
Multifunctional collimator tube used for photoelectric teaching Download PDFInfo
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- CN202093722U CN202093722U CN2011201660655U CN201120166065U CN202093722U CN 202093722 U CN202093722 U CN 202093722U CN 2011201660655 U CN2011201660655 U CN 2011201660655U CN 201120166065 U CN201120166065 U CN 201120166065U CN 202093722 U CN202093722 U CN 202093722U
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- parallel light
- light tube
- lens barrel
- photoelectricity
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Abstract
The utility model provides a multifunctional collimator tube used for photoelectric teaching. The multifunctional collimator tube comprises a collimator tube lens barrel, wherein a light source, a light evening module, an object placement mechanism and a collimating mirror which are sequentially arranged along a light path in the collimator tube lens barrel; the collimator tube lens barrel is dumbbell-shaped in appearance and comprises an incident section, a light passing section and an emergent section; the light source, the light evening module and the object placement mechanism are arranged in the incident section, and the collimating mirror is arranged in the emergent section; the internal diameters of the incident section and the emergent section are consistent with that of the light passing section; and the thicknesses of the barrel wall of the incident section and the emergent section are larger than that of the light passing section. The multifunctional collimator tube provided by the utility model has light weight, small volume, high thermal stability, high positioning accuracy and good light evening effect.
Description
Technical field
The present invention relates to photoelectricity teaching equipment technical field, specifically, the present invention relates to a kind of multi-functional parallel light tube that is applied to the photoelectricity teaching.
Background technology
Photoelectricity teaching field widespread use parallel light tube, the knowledge point of lecturing university's correlated curriculum, the ability of practice of cultivating the student.It is the requisite instrument in Teaching in University field.
Parallel light tube is a kind of optical instrument that an infinite distance target or parallel beam can be provided, and it can be used as test benchmark, is widely used for test job and to the calibration operation of other instruments.In the prior art, traditional parallel light tube comprises parallel light tube lens barrel and the incandescent lamp of arranging successively along light path, color filter, two-sided sanding glass, object Placement Cell and collimating mirror (being collimator objective) in described parallel light tube lens barrel.
Wherein, the collimating mirror of parallel light tube and object distance are generally grown (200-2000mm), small stress deformation all can cause the parallel performance of parallel light tube to descend, therefore, in order to guarantee stability of structure, traditional parallel light tube lens barrel uses cast iron materials heavy wall (wall thickness＞5mm) open circles column type design.Yet this kind design makes that the parallel light tube deadweight is excessive, clumsy, can not put flexibly, clamping, causes use occasion to be restricted.
The tradition parallel light tube uses small filament lamp as lighting source, and its brightness is low, and thermal value is big.The low parallel light tube of brightness requires just higher to environment for use, generally need the darkroom environment.Thermal value greatly then can cause the mechanical-optical setup temperature distortion, reduces the thermal stability of parallel light tube, influences measuring accuracy.
The tradition parallel light tube all uses bayonet arrangement to change object, this structure can guarantee to change axially and the repeatability of radial position, but because bayonet arrangement is worn and torn easily, frequent replacing can cause the bayonet socket wearing and tearing to reduce bearing accuracy, therefore is not suitable for frequently changing the application scenario of object.Particularly in the photoelectricity teaching field, this problem is especially remarkable.
The tradition parallel light tube adopts independent two-sided sanding glass as even photosystem.Because sanding glass is subjected to hair side burnishing powder affected, can not accomplish very thin surface particles; Simultaneously the filament volume of incandescent lamp is bigger, and brightness is concentrated, so its even light effect is not ideal when only using two-sided sanding glass.
In sum, press for a kind of in light weight, volume is little, thermal stability is high, bearing accuracy is high and even light effect is good parallel light tube at present.
Summary of the invention
The purpose of this invention is to provide a kind of in light weight, volume is little, thermal stability is high, bearing accuracy is high and even light effect is good parallel light tube.
For achieving the above object, the invention provides a kind of multi-functional parallel light tube that is applied to the photoelectricity teaching, comprise the parallel light tube lens barrel and be positioned at light source, even optical module, object Placement Cell and the collimating mirror that described parallel light tube lens barrel is arranged successively along light path; Wherein, described parallel light tube lens barrel outward appearance is dumbbell shaped, comprises incident section, logical light section and outgoing section, and described light source, even optical module and object Placement Cell are installed in the described incident section, and described collimating mirror is installed in the described outgoing section; The internal diameter of described incident section and outgoing section is all consistent with described logical light section, and the barrel thickness of incident section and outgoing section is all greater than the barrel thickness of described logical light section.
Wherein, described parallel light tube lens barrel is the lens barrel that is formed by the metal cutting of a cylinder cartridge type.
Wherein, have between described incident section and the described logical light section and make the external diameter of lens barrel change more level and smooth transition section, also have between described outgoing section and the described logical light section and make the external diameter of lens barrel change more level and smooth transition section.
Wherein, the incident section wall thickness of described parallel light tube lens barrel is 4-6mm; The logical light section wall thickness of described parallel light tube lens barrel is 1.5-2.5mm; The outgoing section wall thickness of described parallel light tube lens barrel is 4-6mm.
Wherein, described light source is integrated multi-colored led light source.
Wherein, even optical module comprises two-sided sanding glass and the plano-convex lens that fits tightly, and described plano-convex lens is arranged between described two-sided sanding glass and the described light source, makes light source can not form sharply defined image.
Wherein, described light source arrangement is at plano-convex lens 0.5X focal length place.
Wherein, the object Placement Cell is connected with object by helicitic texture, comprises a guide frame in the described helicitic texture.
Wherein, described guide frame is ceramic guidepost.
Compared with prior art, the utlity model has following technique effect:
1, " dumbbell shape " structure has been adopted in the configuration design of the utility model lens barrel, under the prerequisite that guarantees stability, alleviated weight, made the utility model compare miniaturization more and lightness, be particularly suitable for being applied in the photoelectricity teaching field with traditional parallel light tube.
2, the utility model adopts novel integrated multi-colored led light source, has improved the thermal stability of parallel light tube, has significantly improved the light intensity of parallel light tube.
3, the utility model provides novel object to change the screw thread detent mechanism, just is used to change multiple different object, switches simply fast, and location repeatability is high, simple in structure durable.
4, the utility model adopts novel even light optical design, has improved the even light effect of light source, can compress the angle of divergence of light source simultaneously, improves the efficiency of light energy utilization.
Description of drawings
The light channel structure synoptic diagram of an embodiment of Fig. 1 the utility model;
The structural representation of the parallel light tube lens barrel of an embodiment of Fig. 2 the utility model.
Embodiment
Below, the utility model is done further described in conjunction with the accompanying drawings and embodiments.
According to an embodiment of the present utility model, provide a kind of multi-functional parallel light tube that is applied to the photoelectricity teaching.This parallel light tube comprises the parallel light tube lens barrel, and as shown in Figure 2, the internal diameter of parallel light tube lens barrel 5 is constant, and then big centre, two ends is little for external diameter, makes described parallel light tube lens barrel 5 overall appearance be dumbbell shaped.Describe for convenient, described parallel light tube lens barrel 5 is divided into incident section 51, logical light section 52, outgoing section 53, but is noted that these three sections is one, promptly whole lens barrel is integrated, rather than assemble by above-mentioned three-stage structure.Described parallel light tube light channel structure in parallel light tube lens barrel 5, is arranged light source 2, even optical module 3, object Placement Cell 4 and collimating mirror 6 along light path as shown in Figure 1 successively.Wherein, in the described incident section 51 described light source 2, even optical module 3 and object Placement Cell 4 are installed.In the described outgoing section 53 described collimating mirror 6 is installed.Wherein, the external diameter of incident section 51 and outgoing section 53 is greater than the external diameter of logical light section, and the internal diameter of incident section 51 and outgoing section 53 is then all consistent with described logical light section 52, i.e. the barrel thickness of incident section 51 and outgoing section 53 is greater than the barrel thickness that leads to the light section.This design makes this parallel light tube lens barrel 5 can resist stress deformation effectively to guarantee the parallel stable performance of parallel light tube, can also alleviate the weight of parallel light tube lens barrel 5 simultaneously significantly.Between described incident section 51 and the described logical light section 52, and can also be formed naturally transition section 54 between described outgoing section 53 and the described logical light section 52, make the external diameter of lens barrel change more level and smooth, can reduce stress like this concentrates, and further increase the intensity of parallel light tube lens barrel 5 effectively, make its parallel stable performance more stable.
In a preferred embodiment, described parallel light tube lens barrel 5 is made as follows: be the cylinder cartridge type metal of 4-6mm to wall thickness, reserve incident section 51 and outgoing section 53 at two ends, inwardly be cut to wall thickness 1.5-2.5mm from outer wall along 26-32 degree angle then, thus the lens barrel of two ends that form thin dumbbell shape structure in the middle of thick.In an example, incident section 51 and outgoing section 53 wall thickness are got 5mm, and logical light section 52 wall thickness are got 2mm, and cutting angle is got 30 degree.In the above-mentioned example, " dumbbell shape " structure has been adopted in 5 configuration designs of parallel light tube lens barrel, has alleviated about 15% weight, makes to compare the feature that miniaturization and lightness are arranged with traditional parallel light tube, is particularly suitable for being applied in the photoelectricity teaching field.Further, lens barrel can adopt high-intensity aluminium alloy extrusions to make, and with respect to the cast iron materials of traditional lens barrel, aluminium alloy extrusions is guaranteeing the identical following weight saving of steadiness 62%.
Further, for precision focusing and good stable, parallel light tube lens barrel 5 uses lappingout M60X0.75 accurate thread to be connected with object Placement Cell 4, and parallel light tube lens barrel 5 also uses lappingout M60X0.75 accurate thread to be connected with collimating mirror 6.For quality and the stability that keeps screw thread, the threaded joints branch is arranged at described parallel light tube lens barrel 5 wall thickness than in the thickness portion (being incident section 51 and outgoing section 53).
In a preferred embodiment, light source 2 adopts integrated multi-colored led light source, and (with reference to figure 1) is its power supply by continuous adjustable LED power supply 1.When the integrated multi-colored led light source power that uses during greater than 1W, high 4 times than incandescent lamp (power 5-10W) brightness of traditional parallel light tube, thermal value reduces to have improved the thermal stability of parallel light tube more than 5 times.Use the color filter mode to change color than traditional parallel light tube, present embodiment can conveniently be realized multiple color switching, and the not loss of monochromatic energy, has significantly improved the light intensity of parallel light tube.
In a preferred embodiment, even optical module 3 comprises two-sided sanding glass and the plano-convex lens that fits tightly, and this plano-convex lens makes light source can not form sharply defined image between described light source and described two-sided sanding glass.At one more specifically in the example, described light source arrangement is at plano-convex lens 0.5X focal length place.Compare with traditional scheme of only using two-sided sanding glass, adopt above-mentioned even light optical design, improve the even light effect 20% of light source; Simultaneously the angle of divergence of LED can be compressed to about 30 ° from 70 °; The efficiency of light energy utilization has improved 2.3 times, and improves even optical illumination effect 40%.
In a preferred embodiment, object Placement Cell 4 is connected with object by helicitic texture, comprises a guide frame in the described helicitic texture.Wherein, described guide frame is ceramic guidepost.Traditional parallel light tube mostly uses mechanical bayonet arrangement to change object, and long-term use causes object loosening easily, and the bayonet socket wearing and tearing cause precise decreasing; And object is changed extremely inconvenience when using.The object that present embodiment provides is changed the screw thread detent mechanism, fixation, and wearing and tearing reduce 40% during replacing, conveniently are used to change multiple different object, switch fast simple.The STRTHD structure can't guarantee the radial location precision of object well, in a further advantageous embodiment, a guide frame is set in screw thread, as use wear-resisting ceramic guidepost, thereby the radial location precision of guaranteeing object is less than 5 microns, location repeatability is high, simple in structure durable like this.
In a preferred embodiment, collimating mirror 6 adopts dense flint glass and each a slice lens gummed of crown glass to form, and focal length is the positive lens of 400mm, and effect is that white light is collimated into directional light.This collimating mirror 6 can be proofreaied and correct the chromatic dispersion in the 400-650nm wavelength.
It should be noted that at last, above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, and on using, can extend to other modification, variation, application and embodiment, think that simultaneously all such modifications, variation, application, embodiment are in spirit and scope of the present utility model.
Claims (9)
1. a multi-functional parallel light tube that is applied to the photoelectricity teaching is characterized in that, comprises the parallel light tube lens barrel and is positioned at light source, even optical module, object Placement Cell and the collimating mirror that described parallel light tube lens barrel is arranged successively along light path; Wherein, described parallel light tube lens barrel outward appearance is dumbbell shaped, comprises incident section, logical light section and outgoing section, and described light source, even optical module and object Placement Cell are installed in the described incident section, and described collimating mirror is installed in the described outgoing section; The internal diameter of described incident section and outgoing section is all consistent with described logical light section, and the barrel thickness of incident section and outgoing section is all greater than the barrel thickness of described logical light section.
2. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1 is characterized in that described parallel light tube lens barrel is the lens barrel that is formed by the metal cutting of a cylinder cartridge type.
3. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1, it is characterized in that, have between described incident section and the described logical light section and make the external diameter of lens barrel change more level and smooth transition section, also have between described outgoing section and the described logical light section and make the external diameter of lens barrel change more level and smooth transition section.
4. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1 and 2 is characterized in that the incident section wall thickness of described parallel light tube lens barrel is 4-6mm; The logical light section wall thickness of described parallel light tube lens barrel is 1.5-2.5mm; The outgoing section wall thickness of described parallel light tube lens barrel is 4-6mm.
5. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1, described light source is integrated multi-colored led light source.
6. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1, it is characterized in that, described even optical module comprises two-sided sanding glass and the plano-convex lens that fits tightly, described plano-convex lens is arranged between described two-sided sanding glass and the described light source, makes light source can not form sharply defined image.
7. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 6 is characterized in that described light source arrangement is at plano-convex lens 0.5X focal length place.
8. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 1 is characterized in that described object Placement Cell is connected with object by helicitic texture, comprises a guide frame in the described helicitic texture.
9. the multi-functional parallel light tube that is applied to the photoelectricity teaching according to claim 8 is characterized in that described guide frame is ceramic guidepost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660655U CN202093722U (en) | 2011-05-23 | 2011-05-23 | Multifunctional collimator tube used for photoelectric teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660655U CN202093722U (en) | 2011-05-23 | 2011-05-23 | Multifunctional collimator tube used for photoelectric teaching |
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| Publication Number | Publication Date |
|---|---|
| CN202093722U true CN202093722U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201660655U Expired - Lifetime CN202093722U (en) | 2011-05-23 | 2011-05-23 | Multifunctional collimator tube used for photoelectric teaching |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282210A (en) * | 2014-10-29 | 2015-01-14 | 江南大学 | Self-illumination collimator |
| CN107817048A (en) * | 2017-11-07 | 2018-03-20 | 中国科学院西安光学精密机械研究所 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
-
2011
- 2011-05-23 CN CN2011201660655U patent/CN202093722U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282210A (en) * | 2014-10-29 | 2015-01-14 | 江南大学 | Self-illumination collimator |
| CN107817048A (en) * | 2017-11-07 | 2018-03-20 | 中国科学院西安光学精密机械研究所 | A kind of cocoon type integrating sphere and the parallel light tube based on the integrating sphere |
| CN107817048B (en) * | 2017-11-07 | 2023-09-29 | 中国科学院西安光学精密机械研究所 | Cocoon type integrating sphere and collimator based on integrating sphere |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
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| CX01 | Expiry of patent term |