WO2023165623A1

WO2023165623A1 - Optical device manufacturing method

Info

Publication number: WO2023165623A1
Application number: PCT/CN2023/079903
Authority: WO
Inventors: 谈顺毅
Original assignee: 上海慧希电子科技有限公司
Priority date: 2022-03-04
Filing date: 2023-03-06
Publication date: 2023-09-07
Also published as: CN114624843A

Abstract

An optical device manufacturing method. A mask body (3) is used to cover glue overflowing from the periphery of a second device (2) caused by bonding the second device (2) to a first device (1), and the mask body (3) is configured in such a way that a portion facing a front surface of the second device (2) is a light-transmitting area, and other areas except for the light-transmitting area are light-tight areas, the light-tight areas being partially or completely covered with a front surface of the first device (1); the mask body (3) is arranged above the first device (1), such that the second device (2) can meet exposure requirements; moreover, the glue between the second device (2) and the first device (1) is solidified, and the glue on an interface between the second device (2) and the first device (1) overflows to the surface of the first device (1), such that the overflowed glue is shielded by the mask body (3) on the first device (1), preventing the glue from affecting the overall imaging definition after the glue is exposed and solidified on the surface of the first device (1).

Description

Optical device fabrication method

technical field

The present invention relates to the field of optical devices, in particular to a manufacturing method of optical devices.

Background technique

In today's society, with the gradual development of science and technology, the emergence of optical lenses has been widely used in VR, digital cameras, optical machines and other fields;

When traditional optical lenses are glued, the excess glue usually overflows from the non-working surface of the lens side, even if it is not processed, it will not affect the final image quality. However, when there is a boundary line or surface of the glued parts on the working surface of the device, the glue will overflow, causing the surface to be uneven, which will affect the light transmission and have a negative impact on the imaging;

Patent document CN211838918U discloses a UV irradiation light box for optical lens gluing, through which the optical lens is irradiated and exposed after gluing, and then the optical lens solidifies the glue on the interface, so that the optical lens is successfully glued, but after the glue solidifies, there may be The phenomenon that the overflow adheres to the surface of the optical lens has a bad influence on the imaging of the optical lens.

Contents of the invention

Aiming at the defects in the prior art, the present invention proposes a method for accurately exposing the glued area combined with an optical mask, which can cure the glue or filling material in the area that needs to be exposed, while the overflowing glue or material outside the boundary line or surface is due to If it is not cured by exposure, it will be clearly removed by subsequent processes.

According to a manufacturing method of an optical device provided by the present invention, it is characterized in that: the at least one first optical device and the at least one second optical device are manufactured as a whole by gluing or filling. The manufacturing method includes exposing the second optical device area or part of the second optical device area, and shielding the first optical device area or part of the first optical device area;

Further, in the manufacturing method, the second optical device fills a part of the first optical device with a liquid material filler, and solidifies the filling material to form a complete device including the second optical device;

Further, in the manufacturing method, the shaded area is realized through an optical mask;

Further, the manufacturing method also includes applying force on the optical device during the exposure process, so that the surface Smooth surface;

Further, the method of applying force includes making a surface of the mask body to be consistent with a surface of the optical device after molding, and applying a certain force on the mask to adhere to the surface for exposure;

Further, the mask body is made of a material that will not be pasted by glue or cured material;

Further, the method of applying force includes making one surface of the mask body to be consistent with the shape of a surface of the optical device after molding, and between the mask body and the first optical device and/or the second optical device There is also a layer of material that will not be pasted by glue or cured material, and the mask body will be attached to the material that will not be pasted by glue or cured material by applying a certain force. The above materials are bonded on the surface of the device for exposure;

Further, the manufacturing method further includes cleaning the first optical device and/or the second optical device or cleaning the unexposed area after exposure;

Further, polishing or grinding the surface of the first optical device and/or the second optical device after exposure;

Further, re-curing the first optical device and/or the second optical device;

Further, an alignment mark is made on the surface of the first optical device and/or the second optical device, and after passing through the alignment mark alignment mask and/or the first optical device and/or the second optical device, the device is exposure and curing;

Further, the first optical device and/or the second optical device has a multilayer structure;

Further, the first optical device and/or the second optical device is made with a flow guide groove, and the flow guide groove can be made inside the first and/or second optical device, and its outlet is at the edge of the device (no need for transparent on surfaces passing ambient or image light);

Further, exposing different areas of the first optical device and/or the second optical device in multiple times;

Further, at least part of the interface of the first optical device and/or the second optical device is coated with a reflective or partially reflective film layer, for example, the surface or part of the surface at the interface between the first optical device and the second optical device is coated with The film layer that reflects S light and transmits P light, and the surface or part of the surface corresponding to the second optical device is coated with a film layer that absorbs S light and transmits P light, so that the S light in the ambient light will not pass through Stray light is generated by uncontrolled reflection into the optical path at the interface;

Further, the temperature of the second optical device or part of the second optical device is different from that of the first optical device when they are assembled;

According to the present invention, there is provided a method for manufacturing an optical device, at least one first optical device and a tool or mold whose shape matches that of the second optical device, the first optical device is manufactured first, and then fixed on the tool or mold In , the liquid optical material is filled to form the second optical device.

Further, the liquid optical material is cured, and then the mold is removed to form the whole device.

Further, the pouring port of the tool for pouring the liquid optical material is closed to make a complete device.

According to a manufacturing method of an optical device provided by the present invention, comprising a first optical device and at least one second optical device, including at least one light-transmitting and/or light-reflecting working surface, when assembling the first optical device and the second optical device, At the interface portion of the first and second optical devices on the working surface, the corresponding interface portion is bonded using a tool that is complementary to the surface shape of the corresponding portion of the two surfaces. The tooling can be subsequently removed, or the tooling itself can also be a part of the device, and the whole device can be made after being glued.

Further, the glue or optical liquid is cured by light and/or heat.

Further, the glue or optical liquid cannot overflow from the working surface, the tool will not be adhered by the glue or the optical liquid, and can be removed from the cured device.

Further, the first or second optical device includes an opening or a guide channel for injecting and/or exporting glue or optical liquid, and the opening or guide channel is located on other surfaces of the non-working surface.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a schematic diagram of the three-dimensional docking structure of the main body of one embodiment of the present invention;

Fig. 2 is a schematic diagram of the planar main body structure of one of the embodiments of the present invention;

Fig. 3 is a side view sectional structure schematic diagram of the main body of one embodiment of the present invention;

Fig. 4 is a schematic diagram of the structure of the mask plate applying pressure to the mask body according to one embodiment of the present invention;

Fig. 5 is a schematic diagram of the structure of the diversion groove inside the main body of one embodiment of the present invention;

Fig. 6 is a schematic diagram of the device docking structure under the main body of one embodiment of the present invention;

Fig. 7 is a schematic diagram of a side view cross-sectional structure of a curved surface according to one embodiment of the present invention;

Fig. 8 is a schematic diagram of the planar structure of the docking surface of the first optical device and the second optical device according to one embodiment of the present invention;

Fig. 9 is a schematic structural diagram of the placing and assembling machine for the first optical device and the second optical device according to one embodiment of the present invention;

Fig. 10a is the side view of the section of embodiment four;

Figure 10b is a schematic structural diagram of Embodiment 4;

Figure 11 is a schematic diagram of clamping the upper and lower working surfaces using fixtures.

The figure shows: 1. the first optical device; 2. the second optical device; 3. the mask body; 4. the mask plate; 5. the diversion groove; 6. the diversion channel.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

Embodiment one:

A part of the surface where the first optical device 1 and the second optical device 2 intersect is coated with a reflective film layer. In the figure, the curved surface at the interface between the first optical device 1 and the second optical device 2 on the right is coated with a polarized reflective film. The polarized image light transmitted from the outside is coupled into the inside of the first optical device 1, and the curved surface at the junction of the first optical device 1 and the left second optical device 2 is also coated with a polarized reflective film, which can transmit the inside of the first optical device 1 The incoming image light is reflected and coupled out of the first optical device 1 from the lower surface of the first optical device 1;

The surface type of the second optical device 2 is complementary to that of the first optical device 1, and the refractive index of the material is the same as or similar to that of the first optical device 1, and the multiple interfaces of the first and second optical device 2 are coated with the refractive index and the device Embed the second optical device 2 into the first optical device 1 after the same or similar UV glue. Afterwards, the mask plate 4 is placed on the surface of the device to be exposed (for example, the distance between the mask plate 4 and the device surface is 5 um). The mask plate 4 body is a transparent material (at least transparent to the ultraviolet band used for exposure), and a mask body 3 that can block light is made on the surface opposite to the device, and a graphic structure with a precision of 2um is made on the mask body 3. The graphic structure allows the light in the area to be exposed to pass through, while the light in other areas will be blocked. as shown in picture 2. After the mask body 3 is set, parallel light can be used to expose and cure (or pre-cure) the device from the other side of the mask plate 4, the glue in the area of the second optical device 2 will be cured, and the glue overflowing from the edge Because it is blocked by the mask body 3, it will not be exposed and cured. After the exposure is completed, the unexposed glue in the edge area of the interface can be removed (for example, wiped or removed by ultrasonic cleaning);

After completing the above steps of removing residual glue, the glue can be cured again to make the glue more firm. Re-curing can use re-exposure (you can continue to use the mask body 3, or you can expose the entire device without using the mask body 3), or you can also use the method of heating and drying in an incubator (thermal curing);

After completing the above steps, you can also add a grinding/polishing step, such as using a grinding machine with a mesh size of 5000 or more Polish the surface containing the interface with an agent to remove possible residual glue and obtain a better surface quality;

In this embodiment, considering factors such as the manufacturing tolerance of the device itself, the temperature of the two devices can also be made different during the step of embedding the second optical device 2 into the first optical device 1, and it is easier to use the principle of thermal expansion and contraction. The realization of the embedded process (in this example, the second optical device 2 is fully or partially embedded in the first optical device 1. If other embodiments adopt a non-embedded design, this process generally does not need to be used), the embedded second optical device The temperature of 2 is lower than the temperature of the first optical device 1 (for example, the first optical device is 50°, the second optical device is 20°), and an appropriate amount of optical glue is applied on the interface between the first optical device 1 and the second optical device 2, After the second optical device 2 is embedded in a suitable position, the two devices are brought to the same temperature (such as the temperature during actual use), and then subsequent steps such as exposure and curing are performed;

In a modified example of this embodiment, the mask plate 4/mask body 3 can be made of materials that cannot be bonded by optical glue, and the surface quality of the mask plate 4 can be made very high. Membrane 4 is pressed on the device and a certain pressure is applied. The area of action of the force can be set on the area to be exposed (it can make the glue overflow to the non-exposed area to prevent the glue from overflowing to the area to be exposed). Exposure by contact exposure method. The glue spilled after the exposure is not exposed and it is difficult to adhere to the mask plate 4, and can be easily removed after the mask body 3 is removed. The advantage of doing this is that it is easy to obtain higher exposure precision, and the setting of the exposure machine is also relatively simple (without considering the problem of the inclination angle between the mask plate 4 and the device). In this embodiment, the lower surface of the first optical device 1 needs to be placed on a flat surface to ensure that the device will not be displaced or tilted due to the unevenness of the lower contact surface when the mask plate 4 is pressed together;

In a modified example of this embodiment, the bottom of the second optical device 2 is a plane (as shown in FIG. 8 ), then when the mask plate 4 is pressed together, partly because the bottom of the device 2 will pass through the device 1, thus The bottom of the device must also be fixed on a flat surface consistent with the bottom of the device, so as to ensure that the bottom of device 2 is on the same plane as the bottom of device 1;

In a modified example of this embodiment, a diversion groove 5 can also be reserved at the junction of the device 1 and the device 2 at the bottom of the assembly machine (as shown in Figure 9, it can also be set on the top in some embodiments) , the glue overflowing from the bottom will flow into the diversion groove 5 without remaining on the surface of the device. In addition, a vacuum pump can also be installed outside the diversion groove 5 to further reduce or eliminate glue residue by vacuuming the diversion groove 5;

In a modified example of this embodiment, a layer of film (such as 5um thickness) that cannot be bonded by optical glue can also be added between the mask plate 4/mask body 3 and the device, and the mask plate 4 and the film The surface quality can be made very high. Before exposure, the mask plate 4 is pressed on the film, and the film is pressed on the device again, and a certain pressure is applied. The action area of the force can be set on the area that needs to be exposed (it can make the glue overflow to the non-exposed area to prevent the glue from overflowing to the area to be exposed), and the contact exposure method is used for exposure. The glue spilled after the exposure is not exposed and it is difficult to adhere to the film, and can be easily removed after the mask plate 4 and the film are removed. The advantage of doing this is that it is easy to obtain higher exposure precision, and the setting of the exposure machine is also relatively simple (without considering the problem of the inclination angle between the mask plate 4 and the device). The film can be reused or easily replaced after being damaged, without considering the loss of the mask plate 4 due to contact;

In this embodiment, positioning marks can also be made on the surface of the device to be processed (such as the "ten" mark in Figure 1), and the positioning marks can be added to the above-mentioned marks in the mold (the device and the mark are integrally manufactured through the same set of molds) Higher), or the positioning mark can also be processed after the mold is formed. A similar positioning mark can also be made on the mask plate 4. When using the mask body 3, the mask plate 4 and the device can be adjusted to a predetermined relative position by using a high-precision machine through the positioning mark through equipment such as an electronic magnifying glass microscope, It may be that the positioning mark on the device is aligned with the positioning mark of the mask body 3 , or the positioning mark on the device is aligned with the edge of the mask body 3 . So as to achieve high-precision exposure;

In a modified example of this embodiment, the surface of the first optical device 1 can also be curved, as shown in Figure 3 and Figure 4, the substrate of the mask plate 4 is also made to be consistent with the surface to be exposed The curved surface is attached to the surface of the device and a certain pressure is applied (as shown in Figure 4), so that the device with a curved surface such as spectacle lenses can be processed and manufactured.

Embodiment two:

In this embodiment, the first optical device 1 is the same as the previous embodiment, and the manufacturing method of the second optical device 2 is different from the previous embodiment. Fill in the liquid material whose cured refractive index is the same or close to that of the first optical device 1, control the amount of the filling material so that it just fills the space of the second optical device 2, and place the mask plate 4 (mask body 3 There may be a layer of thin film on the surface that does not adhere to the above-mentioned liquid material) align the first optical device 1 and apply a certain pressure to cover the first optical device 1, and then expose and cure (pre-cure). Afterwards, the mask plate 4 is removed, and since the surface quality of the mask body 3 is very good, the surface formed after exposure will also have high quality. Cleaning removes unexposed material in the overflow exposure area (second optics 2 area). Thereby the second optical device 2 is fabricated (the first optical device 1 is equivalent to a mould);

After the above steps, the device can also be cured again (such as exposure, heating and baking, etc.). The surface can also be polished to obtain higher optical quality;

In a modified example of the above-mentioned embodiment, the non-optical working surface on the side of the first optical device 1 is provided with a guide channel 6 leading to the area of the second optical device 2 (as shown in FIG. 5 ). After the optical device 1 and the mask plate 4 are aligned, a force is applied to form a whole, and then the liquid material is injected into the area of the second optical device 2 through the flow guide channel. Unlike before, the flow guide channel on the mask plate 4 The area where it is located is also an unshielded light-permeable area. After exposure, the area of the second optical device 2 and the guide channel are filled with material and solidified to form the whole device, and the uncured material overflowing from the optical working surface can be cleaned to obtain a complete device.

Embodiment three:

In the modified example of the present invention, a multi-layer structure may also be included, and each layer is glued and manufactured separately. The embodiment shown in Figure 6 and Figure 7, the thin film of special function (for example plays 1/4 glass plate effect, plays polarizer effect etc. ), after the coating is completed, the second optical device 2 needs to be glued on the above surface. When manufacturing related devices, the first optical device 1 and the second optical device 2 on the lower surface can be first bonded together, as shown in Figure 6, after being cured by pressing and exposing the aforementioned mask body 3, and then As shown in Figure 7, the first optical device 1 assembled for the first time and the second optical device 2 on the upper layer are bonded together, and are cured by pressing and exposing;

In a modified example of this embodiment, since the second optical device 2 bordering the lower surface of the first optical device 1 has a large area, the boundary line of the rear surface made as a whole is already at the edge or outside of the optical working area, and the glue overflows The residue has little influence on the operation of the device, and it can also be directly exposed and cured without using the exposure method of the mask body 3;

In a modified example of this embodiment, there may also be a third device, which is defined as not interfacing with the first optical device 1 and interfacing with the second optical device 2 (there may also be fourth, fifth or more devices, and the definition is analogous ). During manufacturing, the first and second optical devices 2 can be made together first, and then the third device can be made on the completed first and second optical devices 2, or the second and third optical devices can be made first. The process of making the devices together and then making them together with the first optical device 1 .

Embodiment four:

The present invention provides a method for manufacturing an optical device, comprising the at least one first optical device (such as 1 in FIG. 10a and FIG. 10b ) and a tool or mold whose shape conforms to that of the second optical device. The first optical device is manufactured first, fixed in the mold, and filled with liquid optical material to form the second optical device. The advantage of doing this is that the second optical device and the whole device are directly molded by optical liquid or glue without a subsequent gluing process. The first optical device may be integrally manufactured through a mold, or may be spliced by multiple optical devices. The surface or part of the surface of the first optical device is coated with a special film (such as a polarized reflective film or a semi-transparent and semi-reflective film). The first optical device may be pasted on the specific position of the tool by glue, or holes may be opened in the part corresponding to some surfaces of the tool and the first optical device, and there is a channel for air extraction outside the hole, The first optical device is fixed on a specific position of the mold or tool by drawing vacuum through an air pump. The potting holes (for potting glue or optical liquid) of the mold or fixture can be located on the non-opaque surface of the device.

The liquid optical material is solidified, and then the mold is removed to form a device as a whole. The cured material may have the same or similar refractive index as the first optical device. The curing may be photocuring, for example using UV light exposure. Or it can also be heat curing, heating or cooling the device, for example, heating the whole device to a temperature that can cure the optical glue or liquid but will not melt or irreversibly deform the first optical device, thereby curing the optical liquid. Afterwards, the mold is removed to complete the fabrication of the device. The advantage of this method is that there is no gluing process, so there are no problems such as overflow of glue, and the surface quality is better.

The pouring port of the tool for pouring the liquid optical material is closed to make a complete device. In this way, the form itself is part of the device, and the form may be transparent in at least part of its area. The part of the device that requires higher precision can be integrated into the first optical device through the mold, and the other parts that require lower precision can be made into the shape of the tool, as long as the first optical device is fixed on the tool with lower precision. (for example, glued by glue), then filled with optical liquid, and then closed the pouring port that is not located on the light-transmitting working surface to make the device as a whole. The advantage of this is that there is no gluing process, the surface quality is high, and the demoulding process can be omitted, and the design is more flexible.

Embodiment five:

A method of manufacturing an optical device comprising a first optical device (1 in FIG. 11 ) and at least one second optical device (2 in FIG. 11 ), comprising at least one light-transmitting and/or light-reflecting working surface, assembling the first When the optical device and the second optical device are used, on the interface of the first and second optical devices on the working surface, use a tool that is complementary to the surface type of the corresponding part of the two surfaces to fit the corresponding interface (the first and the first in Figure 11 The complementary surfaces of the two optical devices are two independent single curved surfaces, or multiple continuous curved surfaces/planes/Fresnel surfaces in other embodiments), so that glue or optical liquid cannot overflow from the working surface. Optical devices generally include a light-transmitting or reflective working surface and a non-light-transmitting or reflective working surface. As shown in Figure 11, a complete device includes two light-transmitting and light-reflecting working surfaces. When assembling, use a tool that is complementary to the interface of the first and second optical devices on the entire working surface or the interface of the first and second optical devices on the working surface to clamp the junction of the first optical device and the second optical device on the working surface (or the entire working surface), make the entire junction area The domain forms a closed area except for the filling port, and the poured liquid cannot overflow from any area on the working surface.

The glue or optical liquid is cured by light and/or heat. The glue can be cured by UV exposure or heat. When photocuring is used, the tool can also be made of a transparent material, which can allow UV light for exposure to pass through.

The fixture will not be adhered by glue or optical liquid and can be removed from the cured device. The tool is made of a material that will not be adhered by the glue used, or a film that will not be adhered by the glue used is pasted on the surface of the tool, and the tool can be easily removed after curing.

The first or second optical device includes an opening or a guide channel for injecting and/or exporting glue or optical liquid, and the opening or guide channel is located on other surfaces of the non-working surface. The opening for injecting glue as a filling port may be on any non-working surface of the first optical device, or may also be on any non-working surface of the second optical device, or there may be multiple filling ports at the same time. The pouring port guides the optical liquid or glue to each interface of the first and second optical devices through the guide channel. The guide channel is generally arranged in the edge area of the device, and has little influence on the actual light propagation. In addition, since the refractive index of the glue or optical liquid is the same or similar to that of the device itself after curing, the guide channel will be filled with the glue after curing, which will not have a great impact on the propagation of light. The outlet can guide excess glue to be discharged from the outlet, and the outlet interface can also be connected to equipment such as a vacuum pump, so that the glue or optical liquid can flow through the entire glued area from the injection port more easily and then discharge the excess from the outlet. Alternatively, the opening for injection and outlet can also be the same opening, which is used for perfusing and discharging excess liquid at the same time.

In a variation of this embodiment, the tool itself can also be a part of the complete device, and by gluing the tool, the first device and the second device together, the work of the interface between the first device and the second device can be made The surface is wrapped inside the complete device, and the interface line will not produce obvious marks due to the filling of glue or optical liquid. In this modified example, glue or optical liquid also needs to be filled on the interface between the bonding tool and the first and second optical devices (it can be solidified or kept in a liquid state, and if it is kept in a liquid state, the boundary line of the non-working surface needs to be closed) , In addition, the tool may also include at least one complete working surface, and the boundary line between the first device and the second device is on the non-working surface of the device, which will not affect the optical imaging.

In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the application.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention installs above the first optical device through the mask plate and the mask body, so that the second optical device can Enough to meet the exposure requirements, and then the glue between the second optical device and the first optical device is solidified, and at the same time, the glue on the interface between the second optical device and the first optical device overflows to the surface of the first optical device, thereby utilizing the first optical device The mask body on the first optical device blocks the overflowing glue, so as to avoid affecting the overall imaging clarity after the glue is exposed and solidified on the surface of the first optical device;

2. The present invention shields the overflowing glue through the combination of the mask body and the mask plate, and the overflowing glue will not solidify due to exposure, and the fluid glue can be made on the surface of the first optical device relative to the solid glue. To fast cleaning, improve the cleanliness of this equipment;

3. The present invention adopts the design of the diversion groove. When the bottom of the second optical device is flat, after the second optical device is docked with the first optical device, the glue will flow out from the diversion groove and will not be in the first optical device. The surface stays solidified, which affects the imaging of the first optical device, so the design of the diversion groove enhances the applicability of the device;

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

A method for manufacturing an optical device, characterized in that it includes at least one first optical device (1) and at least one second optical device (2), which are fabricated as a whole by gluing or filling, and the manufacturing method includes exposing the second The area of the optical device (2) or part of the area of the second device (2) shields the area of the first optical device (1) or part of the area of the first device (1).
The manufacturing method of an optical device according to claim 1, characterized in that, in the manufacturing method, the second device (2) is manufactured by filling part of the first device (1) with a liquid material filler, and curing the filling material. into a complete device including the second device (2).
The manufacturing method of the optical device according to claim 1, characterized in that, in the manufacturing method, the region is shielded by an optical mask.
The manufacturing method of the optical device according to claim 1, further comprising applying force on the optical device during the exposure process.
The manufacturing method of an optical device according to claim 4, characterized in that, the method of applying force comprises making one surface of the mask body (3) consistent with the shape of one surface of the formed optical device, and making the mask body (3) The film is exposed with a certain force against the surface.
The manufacturing method of an optical device according to claim 3, characterized in that, the mask body (3) is made of a material that will not be pasted by glue or cured material.
The optical device manufacturing method according to claim 4, characterized in that, the method of applying force comprises making one surface of the mask body (3) to be consistent with the shape of one surface of the formed optical device, and There is also a layer of material between the film body (3) and the first device (1) and/or the second device (2) that will not be pasted by glue or cured material, and the mask body (3 ) applying a certain force to stick to the material that will not be pasted by the adhesive material or the cured material, and the material is pasted on the surface of the device for exposure.
The manufacturing method of an optical device according to claim 1, further comprising cleaning the first device (1) and/or the second device (2) and/or cleaning the unexposed area after exposure.
The manufacturing method of the optical device according to claim 1, characterized in that the surface of the first device (1) and/or the second device (2) is polished or ground after exposure.
The method for manufacturing an optical device according to claim 1, characterized in that recuring is performed on the first device (1) and/or the second device (2).
The optical device manufacturing method according to claim 1, characterized in that the first device (1) And/or an alignment mark is made on the surface of the second device (2), and the device is exposed after being aligned by the alignment mark.
The manufacturing method of an optical device according to claim 1, characterized in that, the first device (1) and/or the second device (2) has a multilayer structure.
The manufacturing method of an optical device according to claim 1, characterized in that, the first device (1) and/or the second device (2) is made with flow guide grooves.
The manufacturing method of the optical device according to claim 1, characterized in that different areas of the first device (1) and/or the second device (2) are exposed in multiple times.
The optical device manufacturing method according to claim 1, characterized in that, at least part of the interface of the first device (1) and/or the second device (2) is coated with reflective or partial reflective, and/or absorbing or Partially absorbent film layer.
The manufacturing method of an optical device according to claim 1, characterized in that the temperature of the second device (2) or part of the second device (2) is different from that of the first device (1) when they are assembled.
A manufacturing method of an optical device, characterized in that: at least one first optical device and a tool or mold whose shape matches the second optical device, the first optical device is manufactured first, and then fixed in the tool or mold , filling the liquid optical material to form the second optical device.
The manufacturing method of an optical device according to claim 17, characterized in that: curing the liquid optical material, and then removing the mold to make the whole device.
The manufacturing method of the optical device according to claim 17, characterized in that: the pouring port of the tool for pouring the liquid optical material is closed to make the device as a whole.
A method for manufacturing an optical device, characterized in that: it includes a first optical device and at least one second optical device, and includes at least one light-transmitting and/or light-reflecting working surface, and when assembling the first optical device and the second optical device, the The interface portion of the first and second optical devices on the working surface is bonded to the corresponding interface portion using a tool that is complementary to the surface shape of the corresponding portion of the surface.
The manufacturing method of an optical device according to claim 20, characterized in that: the glue or the optical liquid is cured by light and/or heat.
The manufacturing method of an optical device according to claim 21, wherein the glue or optical liquid cannot overflow from the working surface, the tool will not be adhered by the glue or the optical liquid, and can be removed from the cured device remove.
The manufacturing method of an optical device according to claim 20, characterized in that: the tool and/or the first and/or second optical device includes an opening or a guide channel for injecting and/or exporting glue or optical liquid, the opening Or the diversion channel is located on other surfaces other than the working surface.