CN220349064U - Quick printing optical system - Google Patents

Abstract

The application relates to the technical field of optical printing, in particular to a rapid printing optical system. This application is used for generating the parallel fluid of polymerization inhibitor that has certain pressure on the one hand through wind pressure control module, and on the other hand can provide certain supporting role for semi-permeable element, prevents semi-permeable element and warp to can take away the polymerization heat that produces in the printing process in succession, prevent semi-permeable element because the problem that high temperature leads to warping, simultaneously, this application only provides polymerization inhibitor, supports and dispels the heat of semi-permeable element through a set of wind pressure control system, further reduced the cost.

Description

Quick printing optical system

Technical Field

The present disclosure relates to the field of optical printing, and in particular, to a fast printing optical system.

Background

At present, with the development of technology, the 3D printing technology of photo-curing molding is mature, and compared with the FDM 3D printing mode of the mainstream in the market, the photo-curing molding has higher printing precision and faster printing speed.

The existing photo-curing printing technology mainly comprises an SLA stereolithography technology, a DLP photo-curing technology and an LCD photo-curing technology, and the model is formed with lower precision due to the fact that a layered printing mode is adopted, and the three technologies still have the problem of low printing speed due to the fact that the SLA stereolithography technology adopts a point-by-point curing principle and the DLP and LCD photo-curing technology to finish a demolding process in the layered curing process.

The continuous liquid level forming technology is adopted in the related technology, the technology forming precision is high, the printing speed is high, and the continuous liquid level forming technology has the characteristics of saving resin, low energy consumption and the like due to the adoption of a 'bottom-up' movement mode, but the continuous liquid level forming technology in the related technology has the advantages of high manufacturing cost and high printing cost, so that the continuous liquid level forming technology is unfavorable for popularization of consumer-grade application. This situation is to be further improved.

Disclosure of Invention

In order to solve the problem that the cost is high when the continuous liquid surface forming technology is used for printing in the prior art, the application provides a rapid printing optical system, which adopts the following technical scheme:

a fast printing optical system, comprising:

a resin tank;

a carrier;

a build plate comprising a semi-permeable element including a build surface, the carrier and build surface defining a build region filled with a polymerizable liquid material in contact with the build surface;

the collimation light source module is used for emitting a parallel light source, and the collimation light source module adopts an LCD screen to carry out optical projection;

the light-transmitting element can be used for allowing the parallel light source to pass through and protecting the collimation light source system;

the air pressure control module is used for forming an air channel among the light-transmitting element, the semi-permeable element and the side wall of the resin tank; the wind pressure control module is used for supplying wind between the air channels so as to generate the polymerization inhibitor and take away heat between the light-transmitting element and the semi-permeable element; wherein the polymerization inhibitor contacts the polymerizable liquid material through a portion of the semipermeable member to form a polymerization-inhibited zone;

the parallel light source emitted by the collimation light source module sequentially passes through the light-transmitting element, the polymerization inhibitor and the semi-permeable element and irradiates the construction area so as to form a solid polymer from the polymerizable liquid material; as the carrier is lifted away from the build surface, a subsequent build region between the solid polymer and the build surface is created.

According to the technical scheme, the LCD screen is used for being close to the polymerizable liquid material to solidify the polymerizable liquid material by adopting the continuous liquid level forming technology, the LCD screen is required to be close to the polymerizable liquid material, the LCD screen collimation light source module is used for emitting a parallel light source, then the polymerizable liquid material is enabled to form a solid polymer through the light transmission element, the polymerization inhibitor and the semi-permeable element, the polymerization inhibitor is arranged between the light transmission element and the semi-permeable element, the polymerization inhibitor is enabled to be in contact with the polymerizable liquid material through the semi-permeable element to form a polymerization inhibition area, the LCD screen can be close to the polymerizable liquid material, and the polymerization inhibition area is formed in the LCD screen and the polymerizable liquid material, so that adhesion between a solidified polymer part and the light transmission element is avoided, and the parallel light focusing effect of the LCD screen collimation light source module is ensured. Because the general thickness of semi-permeable element is less, and there is certain distance between the printing opacity component, therefore semi-permeable element middle part does not have the supporting role, and because the polymerization heat that produces in the printing process, can produce the high temperature phenomenon at the middle part owing to the heat accumulation effect, lead to semi-permeable element to take place the deformation of certain degree, thereby influence printing accuracy, this application is used for generating the polymerization inhibitor parallel fluid that has certain pressure on the one hand through wind pressure control module, on the other hand can provide certain supporting role for semi-permeable element, prevent semi-permeable element warp, and can take away the polymerization heat that produces in the printing process in succession, prevent semi-permeable element because the problem of high temperature leads to warping, simultaneously, this application only provides polymerization inhibitor through a set of wind pressure control system, semi-permeable element's support and heat dissipation, further reduced cost.

Optionally, the wind pressure control system includes the unit of blowing and the unit of induced drafting, the unit of blowing sets up light-transmitting element one side, the unit of induced drafting sets up light-transmitting element is kept away from the opposite side of unit of blowing, the unit of blowing with between the light-transmitting element, the unit of induced drafting with be provided with the kuppe between the light-transmitting element, the kuppe is towards keeping away from light-transmitting element's direction radius increases gradually.

Through adopting above-mentioned technical scheme, wind pressure control module includes the unit of blowing and induced draft the unit, through blowing in the one side of printing opacity component, and the opposite side induced drafts, makes and forms parallel wind between printing opacity component and the semi-permeable component, through setting up the kuppe, increases the velocity of flow of wind when getting into between printing opacity component and the semi-permeable component to more be convenient for take away the heat, and, play the supporting role through wind pressure semi-permeable component.

Optionally, the air suction unit is provided with a temperature sensor, and the temperature sensor is used for collecting the air outlet temperature passing through the air duct, so as to adjust the air supply temperature according to the air outlet temperature.

Through adopting above-mentioned technical scheme, this application sets up temperature sensor at the unit that induced drafts to detect the air-out temperature of passing the wind channel at the unit that induced drafts, thereby utilize air-out temperature to adjust air supply temperature, prevent that the temperature rise from leading to the temperature to surpass the degradation temperature of polymerizable liquid.

Optionally, the system further comprises a deformation detection module for detecting deformation of the semi-permeable element, wherein the deformation comprises upward deformation and downward deformation;

when the semi-permeable element deforms downwards, the system controls the blowing power of the blowing unit to be larger than the air suction power of the air suction unit, so that positive pressure is formed between the light-transmitting element and the semi-permeable element; when the permeable element deforms upwards, the system controls the blowing power of the blowing unit to be smaller than the air suction power of the air suction unit, so that negative pressure is formed between the light-transmitting element and the semi-permeable element.

By adopting the technical scheme, the middle part of the semi-permeable element has no supporting function in the optical printing process, and the heat accumulation effect can generate a high-temperature phenomenon in the middle part due to the polymerization heat generated in the printing process, so that the middle part of the semi-permeable element is deformed downwards to a certain extent; in the optical printing process, if adhesion occurs in the ascending process of the supporting body, the semi-permeable element is possibly driven to move upwards, so that the middle part of the semi-permeable element is deformed upwards to a certain extent; whether the semipermeable member is deformed upward or downward, the printing accuracy is affected. According to the semi-permeable element deformation detection device, the deformation detection module is arranged to detect the deformation condition of the semi-permeable element, the power of the blowing unit and the power of the air suction unit are controlled, so that the air speed difference exists between the blowing unit and the air suction unit, and when the semi-permeable element is deformed downwards, positive pressure is formed between the light-transmitting element and the semi-permeable element, so that the lower part of the semi-permeable element is supported; when the semi-permeable element is deformed upward, a negative pressure is formed between the light-transmitting element and the semi-permeable element, thereby reducing the deformation of the semi-permeable element.

Optionally, the deformation detection module comprises an imaging unit and a first analysis unit, wherein the imaging unit is embedded in the side wall of the air duct and is used for shooting a target image of the semi-permeable element; the first analysis unit is used for analyzing the target image and obtaining deformation conditions of the semi-permeable element, wherein the deformation conditions comprise upward deformation and downward deformation.

By adopting the technical scheme, the imaging module and the first analysis unit are arranged and are used for shooting a target image of the semi-permeable element and analyzing the image to obtain the deformation condition of the semi-permeable element, the wind speed difference exists between the blowing unit and the air suction unit by controlling the power of the blowing unit and the air suction unit, and when the semi-permeable element deforms downwards, positive pressure is formed between the light-transmitting element and the semi-permeable element, so that the lower part of the semi-permeable element is supported; when the semi-permeable element is deformed upward, a negative pressure is formed between the light-transmitting element and the semi-permeable element, thereby reducing the deformation of the semi-permeable element.

Optionally, the deformation detection module includes a second analysis unit and a plurality of laser displacement sensors, and the plurality of laser displacement sensors are embedded in different angles of the side wall of the air duct and are used for emitting laser and receiving feedback signals; the second analysis unit is configured to analyze the feedback signal and obtain a deformation condition of the semi-permeable element, where the polymerizable liquid material has a low hardening degree in the laser wavelength range, and the deformation condition includes an upward deformation and a downward deformation.

Detecting deformation of the semi-permeable element by adopting a plurality of laser displacement sensors, wherein the hardening degree of the polymerizable liquid material in the laser wavelength range is low, so that the influence of laser of the laser displacement sensors on printing is small, analyzing the deformation of the semi-permeable element by arranging a second analysis unit to obtain the deformation of the semi-permeable element, and then controlling the power of a blowing unit and an air suction unit to ensure that a wind speed difference exists between the blowing unit and the air suction unit, and when the semi-permeable element deforms downwards, positive pressure is formed between the light-transmitting element and the semi-permeable element, so that the lower part of the semi-permeable element is supported; when the semi-permeable element is deformed upward, a negative pressure is formed between the light-transmitting element and the semi-permeable element, thereby reducing the deformation of the semi-permeable element.

Optionally, the collimated light source module includes a first array light source, a first array lens and a first LCD screen, and light rays emitted by the first array light source pass through the first array lens to form parallel light sources to be projected onto the first LCD screen.

Optionally, the collimating light source module includes a second array light source, a second array lens, a first fresnel lens and a second LCD screen, and light rays emitted by the second array light source pass through the second array lens and the fresnel lens to form a parallel light source and project the parallel light rays onto the second LCD screen.

Optionally, the collimating light source module includes a COB light source, an optical collimating lens, and a third LCD screen, and light emitted by the COB light source passes through the optical collimating lens to form a parallel light source and projects the parallel light source onto the third LCD screen.

Optionally, the collimation light source module is an LCD chip bare engine.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the printing device, the wind pressure control module is used for generating polymerization inhibitor parallel fluid with certain pressure on one hand, and providing a certain supporting effect for the semi-permeable element on the other hand, so that the semi-permeable element is prevented from deforming, polymerization heat generated in the printing process can be continuously taken away, the problem of deformation of the semi-permeable element caused by high temperature is prevented, and meanwhile, the wind pressure control system only provides polymerization inhibitor, support for the semi-permeable element and heat dissipation for the semi-permeable element, so that the cost is further reduced;

2. according to the semi-permeable element deformation detection device, the imaging module and the first analysis module are arranged and are used for shooting a target image of the semi-permeable element and analyzing the image to obtain the deformation condition of the semi-permeable element, the wind speed difference exists between the blowing unit and the air suction unit by controlling the power of the blowing unit and the power of the air suction unit, and when the semi-permeable element deforms downwards, positive pressure is formed between the light-transmitting element and the semi-permeable element, so that the lower part of the semi-permeable element is supported; when the semi-permeable element is deformed upwards, negative pressure is formed between the light-transmitting element and the semi-permeable element, so that the deformation of the semi-permeable element is reduced;

3. according to the method, the deformation condition of the semi-permeable element is detected by adopting a plurality of laser displacement sensors, wherein the hardening degree of the polymerizable liquid material in the laser wavelength range is low, so that the influence of laser of the laser displacement sensors on printing is small, the deformation condition of the semi-permeable element is obtained by analyzing the deformation condition of the semi-permeable element through arranging the second analysis unit, then the wind speed difference exists between the blowing unit and the air suction unit by controlling the power of the blowing unit and the air suction unit, and positive pressure is formed between the light-transmitting element and the semi-permeable element when the semi-permeable element deforms downwards, so that the lower part of the semi-permeable element is supported; when the semi-permeable element is deformed upward, a negative pressure is formed between the light-transmitting element and the semi-permeable element, thereby reducing the deformation of the semi-permeable element.

Drawings

FIG. 1 is a schematic diagram of a fast printing optical system according to an embodiment of the present application;

FIG. 2 is a schematic block diagram of a deformation detection module according to an embodiment of the present application;

FIG. 3 is a schematic view of a first configuration of a collimated light source module in an embodiment of the present application;

FIG. 4 is a schematic view of a second configuration of a collimated light source module in an embodiment of the present application;

FIG. 5 is a schematic view of a third configuration of a collimated light source module in an embodiment of the present application;

fig. 6 is a schematic diagram of a fourth configuration of a collimated light source module in an embodiment of the present application.

Reference numerals illustrate: 110. a resin tank; 120. a carrier; 130. constructing a plate; 131. a semi-permeable element; 1311. constructing a surface; 140. a collimated light source module; 1411. a first array of light sources; 1412. a first array of lenses; 1413. a first LCD screen; 1421. a second array of light sources; 1422. a second array lens; 1423. a first fresnel lens; 1424. a second LCD screen; 1431. a COB light source; 1432. an optical collimating lens; 1433. a third LCD screen; 144. LCD chip bare engine; 1441. a second light source; 1442. LCOS chip; 1443. an optical lens; 1444. a second fresnel lens; 1445. a fourth LCD screen; 150. a light-transmitting element; 160. a wind pressure control module; 161. a blowing unit; 162. an air suction unit; 163. a guide cover; 170. an air duct; 180. a deformation detection module; 181. an imaging unit; 182. a first analysis unit; 183. a second analysis unit; 184. a laser displacement sensor.

Detailed Description

The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this application is intended to encompass any or all possible combinations of one or more of the listed items.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The embodiment of the application discloses a fast printing optical system. Referring to fig. 1, the fast printing optical system includes a resin tank 110, a carrier 120, a build plate 130, a collimated light source module 140, a light transmitting member 150, and a wind pressure control module 160.

Wherein build plate 130 includes a semi-permeable element 131, semi-permeable element 131 including a build surface 1311, carrier 120 and build surface 1311 defining a build region filled with a polymerizable liquid material in contact with build surface 1311; the collimation light source module 140 is used for emitting a parallel light source, and the collimation light source module 140 adopts an LCD screen for optical projection; the light-transmitting element 150 can be used for passing through the parallel light source and protecting the collimation light source system; the wind pressure control module 160 forms an air duct 170 between the light-transmitting element 150, the semi-permeable element 131 and the side wall of the resin tank 110; the wind pressure control module 160 is used for supplying wind between the air channels 170 to generate polymerization inhibitor and take away heat between the light-transmitting element 150 and the semi-permeable element 131; wherein the polymerization inhibitor forms a polymerization-inhibiting zone by contacting a portion of the semipermeable element 131 with the polymerizable liquid material. The polymerization inhibitor in this embodiment is air sent from the wind pressure control module 160.

When the system is in operation, the parallel light source emitted by the collimated light source module 140 sequentially passes through the light transmitting element 150, the polymerization inhibitor, and the semi-permeable element 131, and irradiates the build area to form a solid polymer from the polymerizable liquid material; as carrier 120 is lifted away from build surface 1311, a subsequent build area between the solid polymer and build surface 1311 is created, ultimately forming a 3D printed article.

Referring to fig. 1, the wind pressure control system includes a blowing unit 161 and a suction unit 162, the blowing unit 161 is disposed at one side of the light-transmitting member 150, the suction unit 162 is disposed at the other side of the light-transmitting member 150 away from the blowing unit 161, a guide cover 163 is disposed between the blowing unit 161 and the light-transmitting member 150, and between the suction unit 162 and the light-transmitting member 150, the guide cover 163 gradually increases in radius in a direction away from the light-transmitting member 150, and increases a flow rate of wind when entering between the light-transmitting member 150 and the semi-permeable member 131, thereby facilitating heat removal, and supporting the semi-permeable member 131 by wind pressure.

Further, the air suction unit 162 is provided with a temperature sensor (not shown) for collecting the air outlet temperature passing through the air duct 170, so as to adjust the air supply temperature according to the air outlet temperature, thereby cooling the semi-permeable element 131.

Since the middle part of the semi-permeable element 131 has no supporting effect in the optical printing process, and the heat accumulation effect generates a high temperature phenomenon in the middle part due to the polymerization heat generated in the printing process, the middle part of the semi-permeable element 131 is deformed downwards to a certain extent; in the process of optical printing, if adhesion occurs during the ascending process of the carrier 120, the semi-permeable element 131 may be driven to move upwards, so that the middle of the semi-permeable element 131 is deformed upwards to a certain extent; whether the semipermeable member 131 deforms upward or downward, the printing accuracy is affected.

Referring to fig. 2, optionally, in some embodiments, the system further comprises a deformation detection module 180, the deformation detection module 180 configured to detect a deformation condition of the semipermeable element 131, wherein the deformation condition comprises an upward deformation and a downward deformation. When the semi-permeable element 131 deforms downwards, the system controls the blowing power of the blowing unit 161 to be larger than that of the air suction unit 162, so that positive pressure is formed between the light-transmitting element 150 and the semi-permeable element 131, and the lower part of the semi-permeable element 131 is supported; when the permeable member is deformed upward, the system controls the blowing power of the blowing unit 161 to be smaller than the suction power of the suction unit 162, so that a negative pressure is formed between the light-transmitting member 150 and the semi-permeable member 131.

In a specific embodiment, the deformation detection module 180 includes an imaging unit 181 and a first analysis unit 182, where the imaging unit 181 is embedded in a side wall of the air duct 170 to avoid shielding the light of the collimation light source module 140, and the imaging unit 181 is used to capture a target image of the semi-permeable element 131; the first analysis unit 182 is configured to analyze the target image and obtain a deformation condition of the semipermeable element 131.

In a specific embodiment, the deformation detection module 180 includes a second analysis unit 183 and a plurality of laser displacement sensors 184, where the plurality of laser displacement sensors 184 are embedded at different angles on the side wall of the air duct 170, and are used to emit laser light and receive feedback signals; the second analysis unit 183 is configured to analyze the feedback signal and obtain a deformation condition of the semipermeable element 131. By employing a plurality of laser displacement sensors 184, deformation of the semipermeable member 131 is more accurately detected, wherein the polymerizable liquid material is less hardened in the laser wavelength range, such that the laser of the laser displacement sensors 184 has less impact on printing.

Specifically, the polymerizable liquid material used in the application has high absorptivity to a light source with a wavelength in the range of 380-540 nm, and the absorptivity is negligible under the condition that the wavelength of laser is more than 800nm, and the application adopts laser with a wavelength of 900 nm.

Alternatively, referring to fig. 3, the collimated light source module 140 includes a first array of light sources 1411, a first array of lenses 1412, and a first LCD screen 1413, and light emitted from the first array of light sources 1411 passes through the first array of lenses 1412 to form parallel light sources that are projected onto the first LCD screen 1413.

Alternatively, referring to fig. 4, the collimated light source module 140 includes a second array light source 1421, a second array lens 1422, a first fresnel lens 1423, and a second LCD screen 1424, and light emitted from the second array light source 1421 passes through the second array lens 1422 and the first fresnel lens 1423 to form a parallel light source and is projected onto the second LCD screen 1424.

Alternatively, referring to fig. 5, the collimated light source module 140 includes a COB light source 1431, an optical collimating lens 1432, and a third LCD screen 1433, and light emitted from the COB light source 1431 passes through the optical collimating lens 1432 to form a parallel light source to be projected onto the third LCD screen 1433.

Optionally, referring to fig. 6, the collimated light source module 140 is an LCD chip light engine 144, and the LCD chip light engine 144 includes a second light source 1441, an LCOS chip 1442, an optical lens 1443, a second fresnel lens 1444, and a fourth LCD screen 1445; light from the second light source 1441 is projected onto the fourth LCD screen 1445 through the LCOS chip 1442, the optical lens 1443 and the second fresnel lens 1444, forming a parallel light source.

The implementation principle of the fast printing optical system in the embodiment of the application is as follows: the wind pressure control module 160 is used for generating polymerization inhibitor parallel fluid with certain pressure on one hand, and can provide certain supporting effect for the semi-permeable element 131 on the other hand, so that the semi-permeable element 131 is prevented from deforming, polymerization heat generated in the printing process can be continuously taken away, the problem that the semi-permeable element 131 deforms due to high temperature is prevented, meanwhile, the wind pressure control system only provides polymerization inhibitor, support for the semi-permeable element 131 and heat dissipation, and the cost is further reduced; by arranging the deformation detection module 180 to detect the deformation condition of the semi-permeable element 131, by controlling the power of the air blowing unit 161 and the air suction unit 162, the air speed difference exists between the air blowing unit 161 and the air suction unit 162, and when the semi-permeable element 131 is deformed downwards, positive pressure is formed between the light-transmitting element 150 and the semi-permeable element 131, so that the lower part of the semi-permeable element 131 is supported; when the semi-permeable member 131 is deformed upward, a negative pressure is formed between the light-transmitting member 150 and the semi-permeable member 131, thereby reducing the deformation of the semi-permeable member 131.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A fast printing optical system, comprising:

a resin tank (110);

a carrier (120);

-a build plate (130), the build plate (130) comprising a semi-permeable element (131), the semi-permeable element (131) comprising a build surface (1311), the carrier (120) and the build surface (1311) defining a build region filled with a polymerizable liquid material in contact with the build surface (1311);

a collimated light source module (140) for emitting a collimated light source, the collimated light source module (140) performing optical projection using an LCD screen;

a light-transmitting element (150) for passing the parallel light sources for protecting the collimated light source module (140);

the wind pressure control module (160) is used for forming an air duct (170) among the light-transmitting element (150), the semi-permeable element (131) and the side wall of the resin tank (110); the wind pressure control module (160) is used for supplying wind between the air channels (170) to generate polymerization inhibitors and take away heat between the light-transmitting element (150) and the semi-permeable element (131); wherein the polymerization inhibitor contacts the polymerizable liquid material through a portion of the semi-permeable element (131) to form a polymerization-inhibiting zone;

the parallel light source emitted by the collimation light source module (140) sequentially passes through a light-transmitting element (150), a polymerization inhibitor and a semi-permeable element (131) and irradiates the construction area to form a solid polymer from the polymerizable liquid material; when the carrier (120) is lifted away from the build surface (1311), a subsequent build area between the solid polymer and the build surface (1311) is created.

2. The fast printing optical system of claim 1, wherein: the wind pressure control module (160) comprises a blowing unit (161) and an air suction unit (162), the blowing unit (161) is arranged on one side of the light-transmitting element (150), the air suction unit (162) is arranged on the other side of the light-transmitting element (150) away from the blowing unit (161), a guide cover (163) is arranged between the blowing unit (161) and the light-transmitting element (150) and between the air suction unit (162) and the light-transmitting element (150), and the radius of the guide cover (163) gradually increases towards the direction away from the light-transmitting element (150).

3. The fast printing optical system of claim 2, wherein: the air suction unit (162) is provided with a temperature sensor, and the temperature sensor is used for collecting air outlet temperature passing through the air duct (170) so as to adjust air supply temperature according to the air outlet temperature.

4. A fast printing optical system according to claim 3, wherein: the system further comprises a deformation detection module (180), the deformation detection module (180) being configured to detect a deformation condition of the semi-permeable element (131), wherein the deformation condition comprises an upward deformation and a downward deformation;

when the semi-permeable element (131) deforms downwards, the system controls the blowing power of the blowing unit (161) to be larger than that of the air suction unit (162) so as to form positive pressure between the light-transmitting element (150) and the semi-permeable element (131); when the permeable element is deformed upwards, the system controls the blowing power of the blowing unit (161) to be smaller than the air suction power of the air suction unit (162) so that negative pressure is formed between the light-transmitting element (150) and the semi-permeable element (131).

5. The fast printing optical system of claim 4, wherein: the deformation detection module (180) comprises an imaging unit (181) and a first analysis unit (182), wherein the imaging unit (181) is embedded on the side wall of the air duct (170) and is used for shooting a target image of the semi-permeable element (131); the first analysis unit (182) is configured to analyze the target image and obtain a deformation of the semi-permeable element (131), wherein the deformation includes an upward deformation and a downward deformation.

6. The fast printing optical system of claim 4, wherein: the deformation detection module (180) comprises a second analysis unit (183) and a plurality of laser displacement sensors (184), wherein the laser displacement sensors (184) are embedded at different angles of the side wall of the air duct (170) and are used for emitting laser and receiving feedback signals; the second analysis unit (183) is configured to analyze the feedback signal and to obtain a deformation of the semi-permeable element (131), wherein the polymerizable liquid material has a low degree of hardening in the laser wavelength range, the deformation comprising an upward deformation and a downward deformation.

7. The rapid printing optical system according to any one of claims 1 to 6, wherein: the collimated light source module (140) comprises a first array of light sources (1411), a first array of lenses (1412) and a first LCD screen (1413), wherein light rays emitted by the first array of light sources (1411) pass through the first array of lenses (1412) to form parallel light sources to be projected onto the first LCD screen (1413).

8. The rapid printing optical system according to any one of claims 1 to 6, wherein: the collimation light source module (140) comprises a second array light source (1421), a second array lens (1422), a first Fresnel lens (1423) and a second LCD screen (1424), wherein light rays emitted by the second array light source (1421) pass through the second array lens (1422) and the Fresnel lens to form a parallel light source to be projected onto the second LCD screen (1424).

9. The rapid printing optical system according to any one of claims 1 to 6, wherein: the collimating light source module (140) comprises a COB light source (1431), an optical collimating lens (1432) and a third LCD screen (1433), and light rays emitted by the COB light source (1431) pass through the optical collimating lens (1432) to form parallel light sources to be projected onto the third LCD screen (1433).

10. The rapid printing optical system according to any one of claims 1 to 6, wherein: the collimated light source module (140) is an LCD chip bare engine (144).