CN100355546C - Ultraviolet optical system for fast molding - Google Patents
Ultraviolet optical system for fast molding Download PDFInfo
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- CN100355546C CN100355546C CNB031338291A CN03133829A CN100355546C CN 100355546 C CN100355546 C CN 100355546C CN B031338291 A CNB031338291 A CN B031338291A CN 03133829 A CN03133829 A CN 03133829A CN 100355546 C CN100355546 C CN 100355546C
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- ultraviolet
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- ultraviolet light
- source generator
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Abstract
The present invention discloses an ultraviolet optical system used for fast shaping, which is composed of an ultraviolet light source generator, a transmission light guide mechanism and a light convergence mechanism, wherein the ultraviolet light source generator is an ultraviolet light irradiation device based on spherical high pressure mercury lamps; the transmission light guide mechanism is composed of an optical fiber and connecting ports A and B; the light convergence mechanism is realized by an optical combined mechanism; the connecting port A is connected with the ultraviolet light source generator; the connecting port B is connected with the optical combined mechanism of the light convergence mechanism. The present invention is characterized in that in the transmission light guide mechanism, the optical fiber is a liquid-core optical fiber. The present invention can obtain emergence light with stable energy and is matched with the wavelength requirement of ultraviolet light needed by fast shaping; the present invention can conduct and converge ultraviolet light with high efficiency and can ensure the energy and the size of light spots, which are needed for solidifying shaping materials, thereby, the present invention provides an effective method and technique reference for fast shaping systems based on ultraviolet light.
Description
Technical field
The present invention relates to a kind of ultraviolet optics system that is used for rapid shaping.
Background technology
At present, the ultraviolet optics system that is used for the rapid shaping field, the general light source that adopts mostly is He-Cd ultraviolet laser and Ar ion ultraviolet laser greatly, light-guiding mechanism adopts reflective optics and many fibre cores silica fibre system more, the employing tapered fibers that optically focused mechanism has, the multiple lens that adopt for the microminiaturization of pursuing focal beam spot that have make up.There is following drawback in this system of systems: the ultraviolet laser energy of light source output stability of above-mentioned employing is relatively poor, and cost is higher; In the light-guiding mechanism that adopts, reflective optics is affected by environment big, and mechanism's complexity, and the coupling energy loss that voidage causes during because of the monofilament boundling in many fibre cores silica fibre system is bigger; In the optically focused mechanism that adopts, tapered fibers transmission energy loss is big, and the system architecture of multiple lens combination is debug to processing again and brought big difficulty.More than these drawbacks limited to a certain extent and utilize ultraviolet light to carry out applying of rapid shaping technique.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this invention is to provide a kind of export stable, conductivity energy height, effectively focal beam spot, be used for the ultraviolet optics system of rapid shaping.
The technical solution adopted for the present invention to solve the technical problems is: be made up of ultraviolet source generator, transmission light-guiding mechanism and optically focused mechanism, described ultraviolet source generator adopts the UV curing apparatus based on the spherical high-pressure mercury lamp; The transmission light-guiding mechanism is made up of optical fiber and connectivity port A, B; Optically focused mechanism is realized by the optics combined mechanism; Connectivity port A is connected with the ultraviolet source generator, and connectivity port B is connected with the optics combined mechanism of optically focused mechanism; It is characterized in that optical fiber adopts liquid-core optical fibre in the described transmission light-guiding mechanism;
Wherein said liquid-core optical fibre numerical aperture: NA 〉=0.5; Numerical aperture angle: 2 φ 〉=60 °; Effectively pass light diameter: d=5mm; Optical fiber minimum bending radius: r=60mm; Optical window end face heatproof can reach 200 ℃; Operating ambient temperature is :-10 ℃～40 ℃.
The invention has the beneficial effects as follows:
1. adopt ultraviolet source generator, realized the emergent light energy stabilization, require matching effect good, reduced cost simultaneously with the moulding optical wavelength based on the spherical high-pressure mercury lamp.
2. the present invention transmits that the liquid-core optical fibre that adopts the light-guiding mechanism core has big core diameter, large-numerical aperture, characteristics such as the spectral transmissions scope is wide, efficiency of transmission is high, long service life, and can conduct the ultraviolet light that front end is sent here expeditiously.
3. the multiple-piece optics combined mechanism of optically focused mechanism can be focused at ultraviolet light on the work focal plane effectively, has guaranteed to be used for required energy of curing molding material and spot size simultaneously, compact conformation.
Description of drawings
Fig. 1 ultraviolet optics systematic schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present invention and operation principle thereof are described in further detail.
As shown in Figure 1, the present invention is made up of ultraviolet source generator, transmission light-guiding mechanism and optically focused mechanism, wherein: the ultraviolet source generator adopts the UV curing apparatus 1 based on the spherical high-pressure mercury lamp, is used to produce the ultraviolet light of wavelength at 250～500nm, and wherein peak wavelength is 365nm; According to the curing characteristics (requiring ultraviolet wavelength between 320～480nm) of moulding material (photosensitive resin), the ultraviolet light that this ultraviolet source generator produces and its requirement coupling are quite.The ultraviolet light that the ultraviolet source generator produces imports in the fibre system of transmission light-guiding mechanism 2 by connectivity port A21, and fibre system can be conducted the multispectral section ultraviolet light that front end is sent here efficiently; Fibre system is sent in the multiple-piece optically focused mechanism by connectivity port B22 multispectral section, by optically focused mechanism ultraviolet light is assembled to the focal plane of working at last, has guaranteed to be used for required energy of curing molding material and spot size simultaneously.
Transmission light-guiding mechanism 2 is made up of liquid-core optical fibre and connectivity port A21, B22; Optically focused mechanism is realized by optics combined mechanism 3; Connectivity port A21 is connected with ultraviolet source generator 1, and connectivity port B22 is connected with the optics combined mechanism 3 of optically focused mechanism;
Transmission light-guiding mechanism core devices of the present invention adopts liquid-core optical fibre, its numerical aperture: NA 〉=0.5 (present embodiment NA is 0.6); Numerical aperture angle: 2 φ 〉=60 ° (present embodiment 2 φ=65.5 °); Effectively pass light diameter: d=5mm; Optical fiber minimum bending radius: r=60mm; Optical window end face heatproof can reach 200 ℃; Operating ambient temperature is :-10 ℃～40 ℃ (30 ℃～40 ℃ of present embodiments), thereby when having adapted to rapid prototyping system work effectively to the requirement of ultraviolet optics system: 1) Transmission Fibers moves back and forth and moderate finite deformation takes place; 2) moulding environment temperature reaches 30 ℃～40 ℃.
Optically focused of the present invention mechanism a kind ofly is used to transmit and the optical transmission combined mechanism that focuses on (present embodiment adopts condenser system KX-1), it is coaxial with the liquid-core optical fibre of transmission light-guiding mechanism, can receive the dispersion angle that transmits to greatest extent is: θ=40 °～50 °, wavelength is: the ultraviolet light of λ=250nm～500nm, improve the focal beam spot power density more than 4 times, thereafter operating distance is long simultaneously, helps integrally-built adjustment.
The present invention has overcome the drawback that existing ultraviolet light polymerization formation system system exists effectively, has higher utility in the rapid shaping field.
Claims (2)
1. a ultraviolet optics system that is used for rapid shaping is made up of ultraviolet source generator, transmission light-guiding mechanism and optically focused mechanism, and described ultraviolet source generator adopts the UV curing apparatus (1) based on the spherical high-pressure mercury lamp; Transmission light-guiding mechanism (2) is made up of optical fiber and connectivity port A (21), B (22); Optically focused mechanism is realized by optics combined mechanism (3); Connectivity port A (21) is connected with ultraviolet source generator (1), and connectivity port B (22) is connected with the optics combined mechanism (3) of optically focused mechanism; It is characterized in that: optical fiber adopts liquid-core optical fibre in the described transmission light-guiding mechanism.
2. according to the described ultraviolet optics system that is used for rapid shaping of claim 1, it is characterized in that: described liquid-core optical fibre numerical aperture: NA 〉=0.5; Numerical aperture angle: 2 φ 〉=60 °; Effectively pass light diameter: d=5mm; Optical fiber minimum bending radius: r=60mm; Optical window end face heatproof can reach 200 ℃; Operating ambient temperature is :-10 ℃～40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031338291A CN100355546C (en) | 2003-06-27 | 2003-06-27 | Ultraviolet optical system for fast molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031338291A CN100355546C (en) | 2003-06-27 | 2003-06-27 | Ultraviolet optical system for fast molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1565823A CN1565823A (en) | 2005-01-19 |
| CN100355546C true CN100355546C (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031338291A Expired - Fee Related CN100355546C (en) | 2003-06-27 | 2003-06-27 | Ultraviolet optical system for fast molding |
Country Status (1)
| Country | Link |
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| CN (1) | CN100355546C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006284424A (en) * | 2005-04-01 | 2006-10-19 | Ichikoh Ind Ltd | Head structure of ultraviolet irradiation apparatus and ultraviolet irradiation apparatus having head of the structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116739A (en) * | 1994-12-06 | 1996-02-14 | 西安交通大学 | Liquid core fibre-optic phaseshift electronic scattered spot system |
| CN1236899A (en) * | 1998-12-29 | 1999-12-01 | 西安交通大学 | Method and apparatus for optical solidifying and shaping by line scan with non-laser light source |
| JP2003503234A (en) * | 1999-06-25 | 2003-01-28 | ノバルティス アクチエンゲゼルシャフト | UV lighting device |
-
2003
- 2003-06-27 CN CNB031338291A patent/CN100355546C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116739A (en) * | 1994-12-06 | 1996-02-14 | 西安交通大学 | Liquid core fibre-optic phaseshift electronic scattered spot system |
| CN1236899A (en) * | 1998-12-29 | 1999-12-01 | 西安交通大学 | Method and apparatus for optical solidifying and shaping by line scan with non-laser light source |
| JP2003503234A (en) * | 1999-06-25 | 2003-01-28 | ノバルティス アクチエンゲゼルシャフト | UV lighting device |
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| CN1565823A (en) | 2005-01-19 |
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