TWI593543B - Method for embeded injection molding prism and prism manufactored by using the same - Google Patents

Description

Method for intrusive injection and optical 使用 manufactured using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an optical crucible and a method of fabricating an optical crucible, and more particularly to a method of intrusively ejecting crucibles and an optical crucible fabricated therefrom.

With the rapid development of technology, people hope to be able to view the data or virtual images output by electronic devices while seeing the real world. Therefore, some smart glasses have appeared on the market, which are mounted on the glasses with the optical device and the electronic device, so that the electronic device transmits the data or the virtual image through the transmission and reflection inside the optical frame, and images the people. In the eyes, and the reality can be imaged on the eyes of the people from the other side of the optical cymbal, so that people can simultaneously view the data and virtual images output by the real world and the electronic device.

However, at present, most of the optical ray is firstly used for plastic injection or glass grinding to form one of the slanted faces, and then one of the slanted faces is coated with a semi-transparent film. Beveled to form a complete optical flaw. However, in this way, the slopes of the two cymbals must correspond to each other. If the two slanting faces do not correspond exactly, it will not only affect the appearance of the optical cymbal, but also affect the light traveling in the optical cymbal. The route, which in turn reduces the quality of the finished product of the optical raft.

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a method of intrusive ejection of a crucible and an optical crucible manufactured using the same, thereby avoiding the problem of aligning two inclined surfaces.

To achieve the above object, the present invention provides a method of intrusive ejection of a crucible comprising at least the steps of providing a light transmissive reflector and a mirror, wherein the mirror has a rounded or chamfered corner to make the subsequent optically transparent The material can pass through the mirror to avoid the phenomenon of no-saturated film; the light can pass through the reversible plate and the mirror in the mold; and the optical transparent material is injected into the mold, so that the optical transparent material is coated and the light is transparent. The anti-plate and the mirror are used together to form an optical crucible having a specific shape.

Wherein, the light placed in the mold can have an angle between the reflector and the mirror.

Wherein, the mold may have at least one glue inlet to inject the optically transparent material, and the position of the glue inlet may be related to the position of the light permeable reflector and the mirror.

Wherein, before placing the light permeable transparent plate and the mirror in the mold, the material shrinkage ratio of the material of the light transmissive and the reflective mirror and the optical transparent material is calculated, and the design of the mold corresponds to the shrinkage of the material. ratio.

Wherein, when the optically transparent material is injected into the mold, the first component and the second component of the mold may have a distance between the first component and the second component after a predetermined time after the injection (even if The distance between the first component and the second component is zero or nearly zero.

Before the step of injecting the optically transparent material into the mold, at least one transparent plate may be placed in the periphery of the mold to shape the specific shape and size of the optical crucible, thereby reducing the injection of the optically transparent material into the mold. Contraction ratio.

Therefore, the method of the intrusive ejection method of the present invention can be performed by placing a light transmissive reversible plate and a mirror in a mold, and then injecting an optically transparent material into the mold to cover the optically transparent material and fix the light. The steps of transversing the plate and the mirror are adopted, so that it is not necessary to consider whether the bevel is corresponding, thereby reducing the complexity of the process parameters to simplify the manufacturing process. In addition, the method of the intrusive ejection of the present invention can also utilize the technical features, so that the appearance of the optical crucible can be more neat and beautiful, and the difference between the finished product and the theoretical optical path can be reduced.

In addition, the present invention further provides an optical cymbal, comprising at least: a mirror for reflecting light, the mirror having a rounded or chamfered angle so that the subsequent optically transparent material can pass through the mirror when injected Avoid the phenomenon of no-saturated film; the light can pass through the reversible plate and be disposed on one side of the mirror. The light can be passed through the reversible plate to make the polarized light of one polarity penetrate the light transmissive and reversible plate, and the reflection Polarized light of another polarity; and an optically transparent material coating having a specific shape, by using an injection molding method to coat and fix the mirror and the light transmissive reversible plate, thereby avoiding the need to align the two slopes The problem that arises.

Wherein, the light permeable plate has an angle between the reflector and the mirror.

Wherein, the optical enamel of the present invention may further comprise at least one transparent plate in the periphery of the optically transparent material coating layer to define a specific shape of the optical 稜鏡, and to reduce the shrinkage ratio of the optically transparent material coating layer.

Wherein, the optical raft of the present invention may further comprise a 1/4 λ plate disposed between the light permeable and reversible plate and the mirror, the 1/4 λ plate changing the light from the mirror to the light permeable plate. polarity.

Therefore, the method of intrusive injection of the crucible according to the present invention and the optical crucible manufactured using the same can have one or more of the following advantages:

(1) by first placing a light permeable transparent plate and a mirror in the mold, and then injecting an optically transparent material into the mold to cover the optically transparent material and fix the light permeable plate and the mirror, thereby There is no need to consider whether the bevels correspond, which in turn reduces the complexity of the process parameters to simplify the manufacturing process.

(2) The optical transparent material coating layer is coated and fixed by the light transmissive reflector and the mirror, so that the appearance of the optical crucible can be more neat and beautiful, and the difference between the finished product and the theoretical optical path can be reduced.

(3) By reducing the shrinkage ratio of the optically transparent material coating layer by means of a transparent plate.

110‧‧‧Mirror

120‧‧‧Light transparent board

130‧‧‧Optical transparent material coating

140‧‧‧1/4 λ board

150‧‧‧ Transparent plate

200‧‧‧Mold

201‧‧‧First component

202‧‧‧second component

210‧‧‧ accommodating space

221-223‧‧‧ plastic tunnel entrance

300‧‧‧Injection components

400‧‧‧Optical transparent materials

910-930‧‧‧Steps

D‧‧‧distance

Figure 1 is a flow chart of a method of intrusive injection of the present invention.

Fig. 2 is a plan view showing a first embodiment of an optical crucible manufactured by the method of using an injecting crucible according to the present invention.

Figure 3 is a front elevational view of a first embodiment of an optical crucible manufactured by the method of intrusive ejection of the present invention.

Figure 4 is a schematic view showing the first embodiment of the method of injecting an optically transparent material into the method of injecting a crucible of the present invention.

Figure 5 is a schematic view showing a second embodiment of the method of injecting an optically transparent material into the method of injecting a crucible of the present invention.

Figure 6 is a plan view of a second embodiment of an optical crucible manufactured by the method of using an intrusive ejection crucible of the present invention.

Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a flow chart of a method for inserting a crucible according to the present invention, and FIG. 2 is an optical method for manufacturing an intrusion ejecting crucible according to the present invention. A plan view of a first embodiment of the present invention, and FIG. 3 is a front view of a first embodiment of an optical pickup manufactured by the method of the present invention using a break-in ejection.

As shown in FIGS. 1 to 3, the method of the intrusive ejection device of the present invention first provides a light permeable and reversible plate 120 (for example, a polarizing plate or other plate that partially reflects light partially reflected light). And the mirror 110 (step 910). The light transmissive and reversible plate 120 can also be formed, for example, by coating or coating a flat plate to have a light transflective (or any ratio of light penetration/reflection). . Additionally, mirror 110 can have rounded or chamfered corners. For example, the angle between the adjacent two faces of the mirror 110 can be, for example, via a process of rounding or sharpening the angle, so that the angle around the mirror 110 is rounded (eg, via a rounding procedure). After) or chamfer (for example, after removing the sharp angle). In addition, the mirror 110 can be formed, for example, with an optical lens as a substrate, and then coated or coated with a reflective material on the surface of the optical lens to form the mirror 110. Also, the optical lens can be, for example, a convex lens such that the mirror 110 is a mirror having a convex reflective film. The light transmissive and reversible plate 120 can also have a rounded or chamfered angle. For example, the periphery of the light transmissive and reversible plate 120 or at least one of the corners can be, for example, a process of rounding or sharpening the sharp angle. It is in the form of round or chamfered corners. In addition, the light transmissive reversible plate 120 can be, for example, a flat glass as a substrate (but should not be limited thereto, the substrate can be any transparent plate-shaped substrate), and then plated or coated with a semi-transparent film or a polarized plate. The film is formed on the surface of the substrate such that a polarized light can penetrate the light permeable plate 120 and the light permeable plate 120 can reflect another polarized light. In addition, the heat resistance and pressure resistance of the mirror 110 and the light transmissive reflector 120 are greater than those of the conventional beveled heat and pressure resistance.

After step 910, the light transmissive reversible plate 120 (for example, a polarized plate or other plate that partially reflects the light partially reflected) and the mirror 110 are disposed in the accommodating space 210 of the mold 200 (step 920). ). That is, the light transmissive and reversible plate 120 and the mirror 110 are respectively placed in opposite positions in the accommodating space 210 of the mold 200. For example, the light placed in the mold 200 can have an angle between the translucent plate 120 and the mirror 110. The angle can be, for example, approximately 30 to 60 degrees, thereby achieving better light penetration. And light reflection and better image display effect. Wherein, when the light transmissive and reversible plate 120 is a polarizing plate, the method of the intrusive ejection device of the present invention can be further provided, for example, by 1/4 between the light permeable and reversible plate 120 and the mirror 110. The λ plate 140, which changes the polarity of the light from the mirror 110 to the light permeable plate 120. For example, the 1/4 λ plate 140 can be, for example, a transparent plate coated with or coated with a polarizing film, and disposed between the light permeable and reversible plate 120 and the mirror 110, and the light is permeable and reversible. The plate 120 has an angle with the 1/4 λ plate 140. Alternatively, the method of the present invention can provide a convex lens with a convex surface and a flat surface on the other surface, and a reflective film is plated or coated on the convex surface, and plated on the flat surface. Or coated with a polarizing film. And in step 920, the light permeable and reversible plate 120 is placed in the mold 200 and faces the plane of the convex lens and has an angle with the plane of the convex lens. When the light transmissive reflector 120 is formed by coating or coating a flat plate to have a light transflective (or any ratio of light penetration/reflection) as a whole, The optical lens formed by the invention does not need to have a 1/4 λ plate 140 in this case.

After the step 920, the method of the present invention is to inject the optically transparent material into the accommodating space 210 of the mold 200 and fill the accommodating space 210, so that the optically transparent material forms the protective layer of the optical transparent material. 130, and coating and fixing the light transmissive reflector 120 (such as a polarized plate or other plate that partially reflects the light partially reflected) and the mirror 110, thereby jointly forming an optical 具有 having a specific shape (step 930). For example, the method of the intrusive injection method of the present invention may be based on actual conditions. It is desirable to design a mold 200 of a particular shape to be fabricated, and a mirror 110 having a rounded or chamfered angle and a light permeable reflector 120 (eg, polarized) will be provided in step 910. The plate is placed in the accommodating space 210 of the mold 200 at a specific position (step 920), and then the optically transparent material is injected into the accommodating space 210 of the mold 200 and filled with the accommodating space 210. After a period of time, the stencil The optically transparent material in 200 is shaped to form an optically transparent material coating layer 130, and the optically transparent material coating layer 130 covers the mirror 110 and the light permeable and reversible plate 120, and fixes the mirror 110 and the light is transparent. The position of the plate 120 can be reversed to collectively form an optical raft having a specific shape. That is, the common mode emits an optical ray having a specific shape. Wherein, the specific shape may be, for example, a column shape or other suitable shape.

The mold 200 may have at least one lane entrances 221, 222, and 223 to provide a channel for injecting an optically transparent material into the accommodating space 210, and the positions of the lane entrances 221, 222, and 223 may be related to light permeable. The position of the anti-plate 120 and the mirror 110 can be avoided to avoid the phenomenon of no film. For example, the rubber inlets 221 and 223 can be disposed on opposite sides of the mold 200, for example, so that the optically transparent materials can be injected into the accommodating space 210 on opposite sides of the mold 200. The rubber inlet 222 can be disposed, for example, above the mold 200, or more, for example, above the mold 200 corresponding to the light permeable and reversible plate 120 and/or above the mold 200 corresponding to the mirror 110. Therefore, the optically transparent material can be injected into the respective positions in the accommodating space 210 after being injected from the rubber inlets 221, 222 and 223, so as to avoid the phenomenon of no film. Moreover, since the mirror 110 has a rounded or chamfered angle, when the optically transparent material is injected from the glue inlet 221 of the adjacent mirror 110, it can flow through the round or chamfer of the mirror 110 and the mold. The space formed between the two can be flowed to more positions in the accommodating space 210 to avoid the phenomenon of no film. The optically transparent material may be, for example, silicone, epoxy or other suitable optically transparent plastic.

Therefore, the method of the present invention can be carried out by placing the light transmissive and reversible plate 120 and the mirror 110 in the accommodating space 210 of the mold 200, and then injecting the optically transparent material into the mold 200. In the space 210, the step of coating the optically transparent material and fixing the light permeable to the reversible plate 120 and the mirror 110 eliminates the need to consider whether the bevel is corresponding, thereby reducing the complexity of the process parameters to simplify the manufacturing process. Moreover, the method of the intrusive ejection enamel of the present invention can also be covered by the optical transparent material coating layer 130 and fix the light permeable transparent plate 120 and the mirror 110, so that the optical 稜鏡 after the common mode is emitted. The appearance can be more neat and beautiful, and can reduce the difference between the finished product and the theoretical optical path.

In addition, the method of the intrusive ejection enamel of the present invention can utilize some steps to correct the shrinkage ratio of the optically transparent material in the accommodating space 210 of the mold 200 so that the common mode is emitted. The optical enamel's appearance is more neat and tidy, and the difference between the finished product and the theoretical optical path can be reduced. For example, the method of intrusive ejection of the present invention can be performed by placing a light transmissive reflector 120 (eg, a polarized plate or other partially transparent light partially reflecting plate) and a mirror 110 in the mold 200. Before the accommodating space 210 (ie, step 920), the material of the light permeable and permeable plate 120, the material of the mirror 110, and the material shrinkage ratio of the optically transparent material in the accommodating space 210 are calculated. The shape of the space 210 or the correspondence between the components is such that the mold 200 can correspond to the calculated material shrinkage ratio to obtain a more tidy and beautiful optical flaw. Wherein, the method of intrusive ejection of the present invention may be modified according to the material of the light permeable and transparent plate 120, the material of the mirror 110, and the material shrinkage ratio of the optically transparent material to be injected into the mold 200, or The manufacturing parameters of the mold 200 (e.g., shape, number or correspondence of mold elements, manufacturing materials, manufacturing environment, etc.) are designed such that the manufactured mold 200 can correspond to the calculated material shrinkage ratio. Alternatively, the method of injecting the crucible of the present invention may be performed after the mold 200 is obtained, according to the material of the light transmissive and reversible plate 120, the material of the mirror 110, and the material of the optically transparent material to be injected into the mold 200. The shrinkage ratio modifies the parameters of the mold 200 (e.g., the shape and the number or correspondence of the mold elements, etc.) so that the mold 200 can correspond to the calculated material shrinkage ratio.

In addition, please refer to FIG. 4 to FIG. 5 , and FIG. 4 is a first embodiment of the method for injecting an optically transparent material into the method of injecting a crucible according to the present invention, and FIG. 5 is a schematic diagram of the first embodiment. A schematic view of a second embodiment of the method of injecting an optically transparent material into the optically transparent material of the present invention. As shown in FIGS. 1 to 5, the method of injecting the crucible of the present invention firstly causes the first component 201 and the second component of the mold 200 when the optically transparent material is injected into the mold 200 (ie, step 930). There is a distance d between the components 202 (that is, the mold 200 is not completely locked, as shown in FIG. 4), and after a predetermined time after the injection, the first component 201 and the second component 202 of the mold 200 are locked ( That is, the distance d is made zero or approximately zero, as shown in Fig. 5). For example, in the method of the present invention, the method of injecting the enthalpy of the present invention may firstly have a distance d between the first component 201 and the second component 202 of the mold 200, and then use the injection component 300 to optically transparent the material. 400 is injected into the mold 200. Since the first component 201 and the second component 202 have a distance d, a portion of the optically transparent material 400 flows out between the first component 201 and the second component 202, and is injected therein. In the time interval, or after a predetermined time after the injection, the method of the intrusive ejection enthalpy of the present invention can calculate (or measure) the pressure of each plane in the mold 200, which is to be calculated (or measured). After the respective pressure values are nearly identical or approximately the same, pressure is applied to the second component 202 to move the second component 202 in the direction of the first component 201, thereby compressing and blocking the first component 201 and the second component 202. Thereafter, after a period of time (i.e., after waiting for the optically transparent material to solidify), the mold 200 is disassembled to obtain an optical crucible having a specific shape.

In addition, the method of injecting the cymbal of the present invention can also place a transparent plate on at least one of the four sides of the accommodating space 210, thereby fixing the shape of the optical cymbal. Please refer to FIG. 6. FIG. 6 is a second embodiment of an optical crucible manufactured by the method of using the intrusion ejection method of the present invention. Top view. The second embodiment of the optical cymbal differs from the first embodiment in that the second embodiment further has a transparent flat plate. As shown in FIG. 1 to FIG. 6 , the method of inserting the enthalpy of the present invention may further place at least one transparent plate 150 on at least one of the four sides of the accommodating space 210 of the mold 200 before the step 930. In the above, the specific shape and size of the shaped optical cymbal are used. The transparent plate 150 can also be plated or coated with a mold layer, thereby protecting the transparent plate 150 or increasing the characteristics and/or function of the optical raft. In addition, when the method of injecting the crucible of the present invention is performed in step 930, the optically transparent material may also be coated with the transparent flat plate 150, for example, a film having a thickness of less than 1 mm is coated on the outer side of the transparent flat plate 150, and The film on the outer side of the transparent plate 150 is uniform and relatively thin, so that the optically transparent material can be limited by the position of the transparent plate 150 when shrinking, and the optically transparent material coating 130 formed of the optically transparent material can be reduced. The shrinkage ratio.

Therefore, the optical pickup of the present invention may include at least the mirror 110, the light permeable and reversible plate 120, and the optically transparent material coating layer 130. The mirror 110 is configured to reflect light and has a rounded or chamfered angle, and the light transmissive and reversible plate 120 is disposed on one side of the mirror 110, and is configured to allow a polarized light to penetrate the light. Light can pass through the reversible plate 120 and reflect another polarized light. In addition, the optically transparent material coating layer 130 can cover and fix the reflective layer 110 and the light transmissive reversible plate 120 by an injection molding method, and has a specific shape, thereby making the optical device of the present invention The appearance can be more neat and beautiful, and can have a better optical path. Wherein, the mirror 110 and the light permeable and reversible plate 120 may have an angle between them to improve the optical path in the optical yoke. In addition, the optical raft of the present invention may further comprise at least one transparent plate 150 around the periphery of the optically transparent material covering layer 130, and the optically transparent material covering layer 130 covers the transparent plate 150, thereby defining an optical 稜鏡. The shape. Wherein, the optically transparent material coating layer 130 has a thickness of less than 1 mm on the outer side of the transparent flat plate 150. In addition, when the light transmissive and reversible plate 120 is a polarizing plate, the optical raft of the present invention may further include a 1/4 λ plate 140 disposed on the light permeable and reversible plate 120 and Between the mirrors 110, and between the 1/4 λ plate 140 and the light permeable and reversible plate 120, for example, there may be an included angle. Moreover, the 1/4 λ plate 140 changes the polarity of the light from the mirror 110 to the light transmissive and reversible plate 120, so that the light that passes through the light permeable plate 120 reaches the mirror 110, passes through the mirror. After the reflection of 110 and passing through the 1/4 λ plate 140, the polarity is changed such that the light again reaches the light permeable plate 120, the light permeable plate 120 reflects the light to a specific direction. In order to enable a user to view the light in this particular direction. When the light transmissive reflector 120 is formed by coating or coating a flat plate to have a light transflective (or any ratio of light penetration/reflection) as a whole, The optical lens of the invention does not need to have a 1/4 λ plate 140 in this case.

In summary, the optical cymbal of the present invention can be coated and fixed by the injection molding method through the optically transparent material layer 130 to fix the mirror 110 and the light transmissive reflector 120, thereby achieving a better appearance and better optical enthalpy. Optical path and better image display.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

110‧‧‧Mirror

120‧‧‧Light transparent board

130‧‧‧Optical transparent material coating

140‧‧‧1/4 λ board

200‧‧‧Mold

210‧‧‧ accommodating space

221-223‧‧‧ plastic tunnel entrance

Claims (8)

A method for intrusively ejecting a crucible includes at least the steps of: providing a light transmissive reflector and a mirror, wherein the mirror has a rounded corner or a chamfer; the light is transparent The plate and the mirror are in a mold; and an optically transparent material is injected into the mold, so that the optically transparent material covers and fixes the light permeable and reversible plate and the mirror, thereby jointly forming a specific shape An optical crucible; wherein at least one transparent plate is placed around the mold before the optically transparent material is injected into the mold to shape the specific shape and size of the optical crucible. The method of injecting a crucible according to claim 1, wherein the light permeable plate and the mirror are placed at an angle between the reflector and the mirror. The method of claim 1 , wherein the mold has at least one glue inlet to inject the optically transparent material, and the position of the rubber inlet is related to the light permeable and reversible The position of the board and the mirror. The method of injecting an enthalpy according to claim 1, wherein before the placing the light transmissive plate and the mirror in the mold, calculating the light permeable and reversible plate and A material shrinkage ratio of the material of the mirror and one of the optically transparent materials, and the mold corresponds to a shrinkage ratio of the material. The method of injecting an enthalpy according to claim 1, wherein when the optically transparent material is injected into the mold, a distance between the first component and the second component of the mold is And after one preset time after injection, the lock is blocked. The first component and the second component. An optical cymbal comprising at least: a mirror for reflecting a light having a rounded corner or a chamfered corner; a light permeable and reversible plate disposed on a side of the mirror The light transmissive reversible plate is configured to pass a polarized light through the light permeable transversable plate and to reflect another polarized light; and an optically transparent material coating having a specific shape, the optically transparent material The coating layer covers and fixes the mirror and the light permeable and reversible plate by using an injection molding method; and further comprises at least one transparent plate in the periphery of the optical transparent material coating layer to define the The specific shape of the optical cymbal. The optical cartridge of claim 6, wherein the light permeable plate has an angle between the reflector and the mirror. The optical cymbal of claim 6, further comprising a 1/4 λ plate disposed between the light permeable and reversible plate and the mirror, the 1/4 λ plate changing from the mirror to the mirror The light can penetrate the polarity of the light of one of the panels.