CN109267012B

CN109267012B - Multi-faceted nano prism processing technology

Info

Publication number: CN109267012B
Application number: CN201811096015.7A
Authority: CN
Inventors: 崔王斌
Original assignee: Nanjing Koan Electro Optics Co ltd
Current assignee: Nanjing Koan Electro Optics Co ltd
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2020-06-19
Anticipated expiration: 2038-09-19
Also published as: CN109267012A

Abstract

The invention discloses a processing technology of a multi-faceted nanometer prism, belonging to the field of optical lens processing and solving the problem of excessive prism processing steps in the prior art, and the technical scheme is characterized by comprising the following steps of S1, selecting a prism with a corresponding specification and cleaning the prism; step S2, observing the prism in the step S1, and carrying out preliminary inspection on the prism; step S3, two prisms which are qualified in the step S2 are combined into a group and clamped on a coating disc, the bottom surfaces of the two prisms in each group are aligned reversely and then are mutually attached and bonded and fixed, the right side surface of one prism is fixed on the coating disc, and after the fixation is finished, the coating disc is sent into a coating machine to carry out coating operation on the coating machine; compared with the existing coating method, the coating method provided by the invention has the advantages that one prism can be coated in three steps, and two prisms can be coated simultaneously, so that more prisms can be placed on the same coating disc, and the coating efficiency can be further improved.

Description

Multi-faceted nano prism processing technology

Technical Field

The invention relates to the field of optical lens processing, in particular to a processing technology of a multi-faceted nano prism.

Background

With the need of scientific and technological development, the requirements of the nanoprisms are increasingly greater in military equipment and daily production life, and in the processing process of the nanoprisms at present, the conventional method is that the prisms are placed into a coating fixture after being precisely cleaned, if four surfaces of the prisms are required to be coated, the prisms are placed into at least three sets of fixtures, and the fixtures are sequentially and integrally placed into a coating machine for coating, so that the steps are complex, and the requirement on coating precision is low.

Therefore, the invention patent published as CN105714263B provides a clamping method for four-prism film coating, which supports the four-prism in different states by arranging corresponding complementary blocks on the main disc. The surface of the prism to be coated and the outward surface of the main disc (the surface is vertical to the evaporation source and can be uniformly coated with a film layer in a vacuum chamber) are positioned on the same plane, so that the coating operation of the four-prism is realized.

However, there is a multi-prism 1, the structure of which is shown in fig. 1 and fig. 2, the main structure of which is roughly a triangular prism, and includes a front end surface 11 and a rear end surface 12 that are parallel to each other, a bottom surface 13, a top surface 16, and a right side surface 15 that are arranged around the front end surface 11 and the rear end surface 12, the top surface 16 is composed of two intersecting first inclined surfaces 161 and second inclined surfaces 162, the left side surface 14 is arranged at the junction of the top surface 16 and the bottom surface 13, the multi-prism 1 is an irregular prism 1, and there are 7 surfaces that need to be coated, if different complementary blocks are arranged to support the multi-prism 1 to realize the coating operation of the multi-prism 1, a plurality of complementary blocks are needed, and at least 7 steps are needed to complete the coating, and the coating process is very complicated.

Disclosure of Invention

The invention aims to provide a processing technology of a polygonal-surface nano prism, which can reduce the film coating steps and improve the processing efficiency.

The technical purpose of the invention is realized by the following technical scheme: a processing technology of a multi-faceted nanometer prism comprises the steps of S1, selecting a prism with a corresponding specification, and cleaning the prism;

step S2, observing the prism in the step S1, and carrying out preliminary inspection on the prism;

step S3, two prisms which are qualified in the step S2 are combined into a group and clamped on a coating disc, the bottom surfaces of the two prisms in each group are aligned reversely and then are mutually attached and bonded and fixed, the right side surface of one prism is fixed on the coating disc, and after the clamping is finished, the coating disc is sent into a coating machine to carry out coating operation on the coating machine;

step S4, film supplementing operation, namely detaching the prism coated in the step S3 from the coating disc, separating two prisms in the same group, coating the right side surface and the bottom surface of one prism, and coating the left side surface and the bottom surface of the other prism;

and step S5, detecting the finished optical lens, warehousing qualified products, and reprocessing or destroying unqualified products.

According to the technical scheme, after the two prisms are complemented, a regular polygon prism can be formed, the front end face, the rear end face and the bottom face of the prism in the same group can be coated simultaneously, the left side face of one prism and the right side face of the other prism can be coated simultaneously, the two prisms can be coated simultaneously, the production efficiency can be improved by about one time, after the step S3 is completed, the two prisms in the same group, one prism still has the bottom face and the right side face, and the other prism still has the bottom face and the left side face which are not coated. Compared with the existing coating method, the coating method provided by the invention has the advantages that one prism can be coated in three steps, and two prisms can be coated simultaneously, so that more prisms can be placed on the same coating disc, and the coating efficiency can be further improved.

Preferably, in step S2, if any stain remains when a defective prism is detected, the process proceeds to step S1 again; if the damage is mechanical damage, the waste product is treated.

By adopting the technical scheme, the surface quality of the prism entering the film coating step can be ensured to be qualified, so that the prism with unqualified surface quality is prevented from entering the next process, and unnecessary processing cost waste is avoided.

Preferably, in step S3, during the first batch of prism coating, coating is performed on one or both surfaces of the prism, after the coating is completed, the prism is detected, and if the detection is qualified, batch production is performed.

By adopting the technical scheme, the condition that prisms are scrapped in large batch due to design or equipment misoperation can be reduced, and risks and potential losses in the production process of enterprises are reduced.

Preferably, in step S1, the prism is cleaned by an ultrasonic cleaning machine for 10 to 15 minutes.

By adopting the technical scheme, the ultrasonic cleaning cost is low, the effect is good, the cleaning time is set to be 10-15 minutes, the prism can be cleaned, the production cost can be saved, and the energy waste is avoided.

Preferably, the coating disc comprises a bottom plate fixed with a coating machine, a plurality of fixed discs used for fixing a group of prisms are rotatably connected to the bottom plate, the fixed discs are arranged in a circumferential array mode by taking the center of the bottom plate as a circle center, and driving pieces used for driving the fixed discs to rotate and revolve around the center of the bottom plate are arranged on the bottom plate.

By adopting the technical scheme, the fixed disk can rotate and revolve during film coating, so that the film coating on the prism on the fixed disk is more uniform, and the film coating effect is improved.

Preferably, a circular through hole is formed in the bottom plate, the driving part comprises a driving disc which is rotatably arranged in the through hole, a plurality of fixing discs are rotatably connected with the driving disc, a circumferential array is arranged on the driving disc, an inner gear ring which is coaxially arranged with the driving disc is fixed on the bottom surface of the bottom plate, an outer gear which is meshed with the inner gear ring is connected to a rotating shaft of each fixing disc after the rotating shaft of each fixing disc extends out of the driving disc, the driving part further comprises a motor, a central gear is connected to an output shaft of the motor, and the central gear is.

By adopting the technical scheme, when the driving disk works, the motor drives the central gear to rotate so as to drive the external gear to rotate, and the external gear is meshed with the internal gear ring, so that the external gear ring can be driven to rotate around the central gear, further the rotation and revolution of the driving disk can be realized, the structure is simple, and the operation is convenient.

Preferably, the fixed disk is provided with a support base which is in contact with the left side surface of one of the prisms facing the fixed disk, and an adhesive layer is provided between the right side surface of the other prism and the fixed disk.

By adopting the technical scheme, the prism and the fixed disk are fixed through glue, the glue can form an adhesive layer after being solidified, the prism is fixed on the driving disk, the prism can be directly taken down through external force after film coating is finished, an additional fixing structure is not needed, operation is very convenient, the supporting table can increase the contact area between the prism and the fixed disk, and the fixing effect of the prism and the fixed disk is improved.

Preferably, the supporting table is slidably disposed on the fixed disk along a radial direction of the fixed disk, the supporting table has a first position close to a center of the fixed disk and a second position far away from the center of the fixed disk, and the fixed disk is provided with a driving device for driving the supporting table to switch between the first position and the second position.

By adopting the technical scheme, when the supporting table is positioned at the second position, the prism is fixed on the driving disc, after the film coating is finished, the supporting table is moved to the first position, the supporting table drives the prism to slide, so that the fixation between the prism and the fixed disc is released, at the moment, the prism is only fixed with the supporting table, and the prism can be very easily detached due to the small contact area between the prism and the supporting table. The driving device can be convenient for operating the supporting platform to switch between the first position and the second position.

Preferably, a sliding groove is formed in the fixed disc in the length direction of the fixed disc, a sliding block connected with the sliding groove in a sliding mode is arranged at the bottom of the supporting table, the driving device comprises an electromagnet for fixing the supporting table at the second position, and an elastic piece for driving the supporting table to slide towards the first position is arranged in the sliding groove.

By adopting the technical scheme, after the electromagnet is electrified, the supporting table can be adsorbed, and the supporting table is fixed at the second position; be equipped with the gliding elastic component of drive brace table towards first position in the spout, after the electro-magnet outage, the elastic component pulling brace table will prop up a supporting bench drive to the second position, and the elastic component is including setting up the spring in the spout, and spring one end is fixed at the spout lateral wall, and one end is fixed with the slider, and the spring is in tensile state all the time. The switching of the supporting table at the first position and the second position can be realized by controlling the on-off of the electromagnet, the structure is simple, and the operation is convenient.

Preferably, the bottom surface of the fixed disk is coaxially provided with a conducting ring connected with the electromagnet together with the fixed disk, the driving disk is provided with a static contact abutted to the conducting ring, the center of the driving disk is provided with a power supply, the static contact is connected with a conducting wire arranged along the radial direction of the driving disk, the central gear is arranged along the axial direction in a sliding manner, and the center of the central gear is provided with a conducting post connected with the power supply and the conducting wire when the central gear is meshed with the external gear.

By adopting the technical scheme, before film coating is prepared, the central gear slides upwards, when the central gear is meshed with the external gear, the conductive column is inserted into the socket at the bottom of the power supply, and the side surface of the conductive column is contacted with all the wires, so that the electromagnet can be electrified, even if the driving gear rotates during working, power can still be continuously supplied to the electromagnet, and the supporting table is ensured to be always positioned at the second position.

In conclusion, the invention has the following beneficial effects:

1. the film coating efficiency is high, and the production cost is effectively reduced;

2. convenient operation, convenient maintenance and good adaptability.

Drawings

FIG. 1 is a schematic diagram of a prism structure I.

Fig. 2 is a schematic diagram of a prism structure.

FIG. 3 is a schematic view of the entire structure of the coating pan in the second embodiment.

FIG. 4 is a schematic view of the bottom structure of the coating pan in the second embodiment.

FIG. 5 is a sectional view showing the coating pan according to the second embodiment (the sun gear is in a sliding-down state).

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is an exploded view of the mounting of the fixing plate in the second embodiment.

In the figure, 1, a prism; 11. a front end face; 12. a rear end face; 13. a bottom surface; 14. a left side surface; 15. a right side surface; 16. a top surface; 161. a first inclined plane; 162. a second inclined plane; 2. a base plate; 21. a through hole; 22. an inner gear ring; 3. a drive disc; 31. a power source; 311. a socket; 32. a stationary contact; 33. a wire; 4. fixing the disc; 41. an outer gear; 42. a chute; 43. a spring; 44. an electromagnet; 45. conducting rings; 5. a support table; 51. a slider; 6. a sun gear; 61. a conductive post; 7. and (5) coating a film disc.

Detailed Description

The present invention is described in further detail below with reference to figures 1-7.

The first embodiment is as follows:

a processing technology of a multi-faceted nanoprism 1 refers to fig. 1 and 2, and comprises a step S1, wherein an optical lens is firstly ground into a preset size through a polishing machine to form a prism 1 with a corresponding specification, then the prism 1 is cleaned, some stains and oil stains in the grinding process or the transportation process are removed, and preparation is made for next coating. In this embodiment, an ultrasonic cleaner is used to perform a decontamination operation on the prism 1, the ground optical lens is placed in the ultrasonic cleaner, and the ultrasonic cleaner is started to clean the optical lens for 10-15 minutes, so that stains on the surface of the optical lens are cleaned.

Step S2, the prism 1 is taken out from the ultrasonic cleaning machine, the prism 1 is placed under strong light, a magnifier is adopted to carry out primary inspection on the prism 1, and the inspection content is whether the surface of the prism 1 has dirt which is not cleaned and oil stain. If there is residual dirt or oil stain, the cleaning operation in step S1 is performed again on the prism 1, and the prism 1 is cleaned again; if the prism 1 is detected to be mechanical damage, for example, a pit or corner damage appears on the surface of the prism 1, and the problem cannot be solved through cleaning, the prism 1 is discarded or recycled, and whether the prism 1 can be processed into other types of prisms or not is determined. Step S2 can ensure that the surface quality of the prism 1 entering the coating step is acceptable, thereby preventing the prism 1 with unacceptable surface quality from entering the next step and causing unnecessary waste of processing cost.

Step S3, two prisms 1 qualified in the step S2 are combined into a group, the group is clamped on a coating plate 7, the bottom surfaces 13 of the two prisms 1 in each group are aligned reversely, then are attached to each other and are bonded and fixed, the right side surface 15 of one prism 1 is fixed on the coating plate 7, after the clamping is finished, the coating plate 7 is sent into a coating machine to carry out coating operation on the coating machine, after the two prisms 1 are complemented, a regular polygon prism 1 can be formed, the prisms 1 in the same group can simultaneously carry out coating on the front end surface 11, the rear end surface 12 and the top surface 16, the left side surface 14 of one prism 1 and the right side surface 15 of the other prism 1 can be coated, the two prisms 1 can be simultaneously coated, the production efficiency can be improved by about one time, after the step S3 is finished, the two prisms 1 in the same group, one prism 1 still has the bottom surface 13 and the right side surface 15, the other prism 1 is left uncoated with a bottom surface 13 and a left side surface 14.

Step S4, film supplementing operation, film coating is carried out on the surface of the prism 1 which is not coated, the prism 1 which is coated in the step S3 is detached from the film coating disc 7, two prisms 1 in the same group are separated, the right side surface 15 and the bottom surface 13 of one prism 1 are coated, the left side surface 14 and the bottom surface 13 of the other prism 1 are coated, and at the moment, the film coating of the prism 1 can be completed.

Step S5, after the prism 1 is coated, the operator takes out the coating disc 7, carefully takes out the coated prism 1, the operator detects the finished prism 1, if the finished prism 1 is qualified, the finished prism 1 is put in storage, if the finished prism 1 is not qualified, whether the finished prism can be reprocessed or not is judged, and if the finished prism cannot be destroyed; the prism 1 can be ground again for producing prisms 1 of other sizes, and resource waste is reduced. All the steps are carried out in a dust-free environment to prevent dust from polluting the prism 1. And (4) detecting the finished prism 1, warehousing qualified products, and reprocessing or destroying unqualified products.

In addition, in order to avoid the condition of batch scrapping, in step S3, when the prism 1 is firstly coated, a single or two surfaces of the prism 1 are coated, after the coating is finished, the plane of the coating on the prism 1 is detected, and if the detection is qualified, batch production is performed, so that the condition that the prism 1 is scrapped in a large batch due to design or equipment misoperation can be reduced, and the risk and potential loss in the production process of an enterprise are reduced.

Example two:

a processing technology of a multi-faceted nanometer prism 1 is different from that of the first embodiment in that in the first embodiment, referring to fig. 3, a coating disc 7 comprises a bottom plate 2 fixed with a coating machine, the bottom plate 2 can be fixed on the coating machine through a quick clamp on the coating machine, and the coating disc 7 is convenient to replace.

Referring to fig. 3 and 4, the bottom plate 2 is circular, the through hole 21 is formed in the bottom plate 2, the through hole 21 and the bottom plate 2 are coaxially arranged, the driving disc 3 is rotatably arranged in the through hole 21, the driving disc 3 is circular, the outer peripheral surface of the driving disc 3 is rotatably connected with the inner wall of the through hole 21, a plurality of fixing discs 4 are arranged on the driving disc 3 in a circumferential array by taking the axis of the driving disc 3 as the circle center, a group of prisms 1 is fixed on each fixing disc 4, a rotating shaft is arranged in the center of each fixing disc 4, and. The bottom plate 2 is provided with a driving piece which drives the fixed plate 4 to rotate and revolve around the center of the bottom plate 2. During coating, the fixed disk 4 can rotate and revolve, so that the coating on the prism 1 on the fixed disk 4 is more uniform.

Referring to fig. 3 and 4, the driver includes the ring gear 22, the outer gear 41, and the sun gear 6. The bottom surface of the bottom plate 2 is fixed with an inner gear ring 22 which is coaxial with the driving disc 3, a rotating shaft of the fixed disc 4 extends out of the driving disc 3 and then is connected with an outer gear 41 which is meshed with the inner gear ring 22, the driving part further comprises a motor, a motor output shaft is connected with a central gear 6, the central gear 6 is positioned in the center of the bottom plate 2 and is meshed with all the outer gear rings 41, when the driving part works, the motor drives the central gear 6 to rotate and further drives the outer gear 41 to rotate, and due to the fact that the outer gear 41 is meshed with the inner gear ring 22, the outer gear ring can be driven to rotate around the central gear 6.

Referring to fig. 5 and 6, in order to facilitate the fixation of the prism 1 and the fixed disk 4, a supporting platform 5 abutting against the left side 14 of one prism 1 facing the fixed disk 4 is arranged on the fixed disk 4, an adhesive layer is arranged between the right side 15 of the left side 14 and the other prism 1 and the fixed disk 4, the prism 1 and the fixed disk 4 are fixed by glue, the glue can form the adhesive layer after being solidified, the prism 1 is fixed on the driving disk 3, after the coating is completed, the prism 1 can be directly taken down by external force, an additional fixing structure is not needed, the operation is very convenient, the contact area between the prism 1 and the fixed disk 4 can be increased by the supporting platform 5, and the fixing effect of the prism 1 and the fixed disk 4 is improved.

Referring to fig. 6 and 7, in order to facilitate the detachment of the prism 1, the supporting platform 5 is disposed on the fixed disk 4 in a sliding manner along the radial direction of the fixed disk 4, the supporting platform 5 has a first position close to the center of the fixed disk 4 and a second position far away from the center of the fixed disk 4, when the supporting platform 5 is located at the second position, the prism 1 is fixed on the driving disk 3, after the coating is completed, the supporting platform 5 is moved to the first position, the supporting platform 5 drives the prism 1 to slide, and further the fixation between the prism 1 and the fixed disk 4 is released, at this time, the prism 1 is only fixed with the supporting platform 5, and since the contact area between the prism 1 and the supporting platform 5 is small, the detachment. For convenience of operation, the fixed disk 4 is provided with a driving device for switching the support table 5 between the first position and the second position.

Referring to fig. 6 and 7, a sliding groove 42 is formed in the fixed disk 4 along the length direction of the fixed disk 4, the section of the sliding groove 42 is arranged in a dovetail shape, a sliding block 51 connected with the sliding groove 42 in a sliding manner is arranged at the bottom of the supporting platform 5, and the sliding connection between the supporting platform 5 and the fixed disk 4 can be realized by arranging the sliding groove 42 and the sliding block 51; be equipped with the gliding elastic component of drive brace table 5 towards first position in spout 42, after electro-magnet 44 outage, elastic component pulling brace table 5, with brace table 5 drive to first position, the elastic component is including setting up the spring 43 in spout 42, and spring 43 one end is fixed at spout 42 lateral wall, and one end is fixed with slider 51, and spring 43 is in tensile state all the time. The switching of the support table 5 between the first position and the second position can be realized by controlling the on-off of the electromagnet 44, and the structure is simple and the operation is convenient.

Referring to fig. 5-7, in order to facilitate the synchronous on-off of all the electromagnets 44, a conducting ring 45 is coaxially disposed on the bottom surface 13 of the fixed disk 4 and the fixed disk 4, the conducting ring 45 is connected to the electromagnets 44, a stationary contact 32 abutting against the conducting ring 45 is disposed on the driving disk 3, the stationary contact 32 is fixed on the driving disk 3, a power supply 31 is disposed at the center of the driving disk 3, a socket 311 is disposed at the bottom of the power supply 31, a conducting wire 33 is radially disposed on the driving disk 3, the conducting wire 33 is disposed corresponding to the fixed disk 4, one end of the conducting wire 33 is connected to the stationary contact 32, the other end extends to the lower side of the power supply 31 and is located at the side of the socket 311, the central gear 6. Before preparing to coat a film, the central gear 6 slides upwards, when being meshed with the external gear 41, the conductive column 61 is inserted into the socket 311 at the bottom of the power supply 31, and meanwhile, the side surface of the conductive column 61 is contacted with all the conducting wires 33, so that the electromagnet 44 can be electrified, even if the driving gear rotates during working, the electromagnet 44 can still be continuously powered, and the supporting table 5 is always in the second position.

The specific implementation process comprises the following steps: when the prism support table works, the coating disc 7 is fixed in the coating machine, the central gear 6 slides upwards, the conductive column 61 is inserted into the socket 311 at the bottom of the power supply 31, the conducting wire 33 is electrically connected with the power supply 31, the electromagnet 44 is electrified through the transmission of the conductive ring 45 and the static contact 32, the support table 5 is adsorbed by the electromagnet 44 and is kept at the second position, at the moment, the prism 1 can be clamped, and the prism 1 is adhered and fixed on each fixed disc 4;

after the film coating is finished, the central gear 6 slides downwards, the conductive column 61 is pulled out, the electromagnet 44 is powered off, the spring 43 pulls the support platform 5 back to the first position, the support platform 5 drives the prism 1 to slide together by overcoming the adhesive force between the prism 1 and the fixed disk 4, and the fixation between the prism 1 and the fixed disk 4 is released.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A processing technology of a multi-faceted nanometer prism comprises the steps of S1, selecting a prism (1) with a corresponding specification, and cleaning the prism (1); the method is characterized in that:

step S2, observing the prism (1) in the step S1, and carrying out preliminary inspection on the prism (1);

step S3, two prisms (1) which are qualified in the step S2 are combined into a group and clamped on a coating disc (7), the bottom surfaces (13) of the two prisms (1) in each group are aligned reversely, then are attached to each other and are bonded and fixed, the right side surface (15) of one prism (1) is fixed on the coating disc (7), and after clamping is finished, the coating disc (7) is sent into a coating machine to perform coating operation on the coating machine;

step S4, film supplementing operation, namely detaching the prism (1) coated in the step S3 from the coating disc (7), separating two prisms (1) in the same group, coating the right side surface (15) and the bottom surface (13) of one prism (1), and coating the left side surface (14) and the bottom surface (13) of the other prism (1);

2. The process of claim 1, wherein the process comprises: in step S2, when the defective prism (1) is detected, if there is any stain remaining, the process returns to step S1; if the damage is mechanical damage, the waste product is treated.

3. The process of claim 1 or 2, wherein the prismoid nanoprism comprises: in the step S3, when the prisms (1) are firstly coated, coating is firstly carried out on one or two surfaces of the prisms (1), after the coating is finished, the prisms (1) are detected, and if the detection is qualified, batch production is carried out.

4. The process of claim 3, wherein the polygonal nanoprism comprises: in step S1, the prism (1) is cleaned by an ultrasonic cleaning machine for 10-15 minutes.

5. The process of claim 1, wherein the process comprises: coating film dish (7) include with fixed bottom plate (2) of coating machine, it is connected with a plurality of fixed disks (4) that are used for fixed a set of prism (1) to rotate on bottom plate (2), fixed disk (4) are a plurality of and use bottom plate (2) center to set up as centre of a circle circumference array, be equipped with the driving piece of drive fixed disk (4) rotation and around bottom plate (2) center revolution on bottom plate (2).

6. The process of claim 5, wherein the process comprises: be equipped with circular through hole (21) on bottom plate (2), the driving piece sets up driving-disc (3) in through hole (21) including rotating, and is a plurality of fixed disk (4) rotate with driving-disc (3) and are connected and circumference array sets up on driving-disc (3), be fixed with ring gear (22) with the coaxial setting of driving-disc (3) on bottom surface (13) of bottom plate (2), the pivot of fixed disk (4) is stretched out and is connected with outer gear (41) with ring gear (22) meshing behind driving-disc (3), the driving piece still includes the motor, and motor output shaft has sun gear (6), and sun gear (6) are located bottom plate (2) center and mesh with all outer gear (41).

7. The process of claim 6, wherein the process comprises: the fixed disk (4) is provided with a support platform (5) which is abutted against the left side surface (14) of one prism (1) facing the fixed disk (4), and an adhesive layer is arranged between the right side surface (15) of the left side surface (14) and the other prism (1) and the fixed disk (4).

8. The process of claim 7, wherein the process comprises: supporting bench (5) are followed fixed disk (4) and are radially slided and set up on fixed disk (4), supporting bench (5) have be close to the first position at fixed disk (4) center and keep away from the second position at fixed disk (4) center, be equipped with the drive arrangement that drive supporting bench (5) switched at first position and second position on fixed disk (4).

9. The process of claim 8, wherein the process comprises: fixed disk (4) are gone up and are equipped with spout (42) along fixed disk (4) length direction, brace table (5) bottom is equipped with slider (51) of being connected with spout (42) slide, drive arrangement is including fixing brace table (5) at electro-magnet (44) of second position, be equipped with the gliding elastic component of drive brace table (5) towards first position in spout (42).

10. The process of claim 9, wherein the process comprises: fixed disk (4) bottom surface (13) go up with fixed disk (4) coaxial be equipped with conducting ring (45) that link to each other with electro-magnet (44), be equipped with on driving-disk (3) with static contact (32) of conducting ring (45) butt, driving-disk (3) center is equipped with power (31), static contact (32) are connected with wire (33) along radial setting of driving-disk (3), central gear (6) slide along its axial and set up, central gear (6) center is equipped with when central gear (6) and external gear (41) meshing connect power (31) and lead electrical pillar (61) of wire (33).