TWI378655B - - Google Patents

Description

1378655 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a method for producing an infrared ray. [Prior Art] The use of infrared transmission signals is a common technique in which the same group of infrared emitters and infrared sensors are generated by an infrared emitter to emit infrared light to the infrared mirror, and the infrared sensor senses the infrared light. , that is, the signal is generated for subsequent processing by the back end. Please refer to FIG. 1 . FIG. 1 is a sound diagram of a conventional infrared module 2 . In order to reduce the infrared rays that should be disturbed by the infrared radiation, the conventional technology will provide an infrared filter holder 8. The infrared filter holder 8 is disposed between the corresponding infrared emitter* of the group and the infrared response H6, and is disposed adjacent to the end of the infrared sensor 6. The infrared filter holder 8 includes a seat body 8〇2 and a through hole 8〇4, and the through hole 804 penetrates the seat body 802. The through hole 8〇4 is used to allow the infrared rays Er generated by the group of infrared emitters 4 to pass through. The infrared sensor 6 at the other end of the hole 8〇4, and the interference infrared rays in part of the ambient light are blocked by the seat body 8〇2. Please refer to FIG. 2, which is a schematic diagram of the infrared interference of the prior art. However, the through hole 804 of the prior art is not long, and although it can block infrared rays in some ambient light, when there are other groups of infrared emitters from the vicinity of the infrared sensor 6A, 'the light is scattered by about 2G degrees due to the infrared rays. The angle line sensor 6 tends to sense the interference red 5 1378655 line MEr directly adjacent to the infrared emitter 4 Α. Please refer to Figure 3, which is a schematic diagram of another infrared interference in the prior art. Even if the seat 802 around the through hole 804 is fortunate to block the interfering infrared ray MEr directly adjacent to the infrared ray emitter 4A, the smooth inner wall of the through hole 8 〇 4 can be reflected into the through hole 804 from the interference generated by the other group of infrared ray emitters. Infrared MEr, the reflected interference infrared MEr eventually reaches the infrared sensor 6, causing the infrared sensor 6 to be misjudged.

In order to improve the problem, the length of the through hole 8〇4 can be deepened, and the inner wall structure of the atomizing through hole 804 can be atomized, and the length of the through hole 8〇4 can be deepened to prevent the direct radiation from interfering with the surface of the infrared ray 804 inner wall atomized. Absorbing and attenuating the interfering infrared rays that the infrared emitter emits obliquely on the inner wall of the through hole 804. However, it is not easy to re-atomize the inner wall surface of the through hole 8〇4 through the through hole 804 having a depth and a small aperture in the seat body 802, which is not easy to do in the existing mold technology, or Yes, it takes more cost

Accordingly, it is a primary object of the present invention to provide a method of fabrication to ameliorate the above problems. [Invention of the infrared filter holder] #, the object of the present invention is to provide a method for fabricating an infrared filter holder, in a cost-effective and efficient manner, on the infrared ray holder, to create a vertical and inner wall fog Through hole. The present invention is used in the production of an infrared filter holder. The infrared filter and the optical system are disposed in one or more sets of corresponding infrared rays.

Between the emitter and the infrared sensor II, the infrared rays generated by the infrared emitters of the group are transmitted through the through holes of the infrared filter holder to form a Lang-group infrared sensor, which is used to filter out other interference infrared rays. The manufacturing method comprises the steps of: forming a first seat and a second seat. The surface of the first body has a first groove, wherein the two ends of the first groove are open on opposite side edges of the first body. The surface of the second seat has m, wherein the two end sides of the second groove are on opposite side edges of the second seat. Then, the first trench and the inner wall surface of the second trench are atomized. Finally, the combination of the first seat and the second seat, and the second __ view. ^ Therefore, by the manufacturing method of the infrared ray illuminating seat of the present invention, the lining body and the second body can be separately manufactured, and the through holes can be atomized on the infrared ray holder and the inner wall can be atomized. ^ This is made into a finished product _, it is difficult. The addition of the hole can be touched by the butterfly to interfere with the infrared rays, and the atomization of the m-ray is emitted, and the interference of the infrared radiation f that is reflected by the inner wall of the through hole reaches the infrared sensor. It is to be noted that the spirit of the operation between the external transmitter and the infrared sensor can be explained by the following detailed description of the invention. [Embodiment] The invention is a schematic diagram of the infrared module 3G of the present invention. This > 四 (4) A production group 3 of the infrared ray holder 36 in the infrared ray module 30. Including at least "infrared emitter 32" - for external sensing (four) H infrared _ New 36. ^ , 34 = used to generate an infrared ray. The infrared ray sensor is used to sense the infrared ray generated by the infrared ray emitter 32. In the middle of the system, there is an infrared emission II 32 and a plurality of infrared sensors, = an infrared emission II 32 scales should be - an infrared _ should be ^% to match the figure four please enter - step _ five 'Figure five A schematic view of the infrared light source holder 36 of the present invention. The infrared filter holder 36 further includes a body 36〇2 and at least a m6G4' towel infrared light holder 36 having a plurality of through holes 3604, each of the through holes 3604 corresponding to a group of infrared emitters and an infrared sensor 34, respectively. As shown in the figure, the infrared ray holder 36 is disposed between the infrared ray emitter 32 and the infrared ray sensor 34 corresponding to the same group, and the infrared ray filter holder 36 is disposed adjacent to the infrared ray sensor 34. One end of each of the through holes 36〇4 is adjacent to the infrared sensor 34, and the other end is open toward the same group of infrared emitters 32. The through hole 3604 is penetrated through the seat body 3602, and the infrared ray Er generated by the corresponding pair of the red line emitters 32 passes through the through hole 3604 to reach the corresponding group of infrared ray sensors 34. The inner wall of the through hole 3604 is a matte structure 3606'. The matte structure 3606 absorbs the light irradiated thereon and contains infrared rays to weaken the reflection. Supplementary description is 'the infrared filter holder 36 as described above, wherein the through hole 3604 has an effective length Ds, the effective length of which makes the seat of the edge read enough to cover the shadow of the hole and the infrared emission. The device disturbs the infrared rays generated by the infrared emitter 32. Neighboring long-term production I by the infrared county seat 36, through the addition of hole 3604 $, can shout "near-infrared emitter 32 obliquely straight into the interference = line" and through the through hole of the inner wall of the matte structure 6, can absorb the red = line reflection, shout less oblique interference infrared (four) through hole fine 4 inner wall reverse = the opportunity to reach the infrared sensor H34, to improve the reliability of the operation between the butterfly group infrared emitter 32 and the infrared sensor 34, To reduce misjudgments. Please refer to FIG. 6 and FIG. 7 . FIG. 6 is an exploded view of the infrared filter of the present invention, and FIG. 7 is a flow chart of the method of the external light seat 36 (four) of the present invention. The invention is directed to a method for fabricating an infrared filter holder 36. The manufacturing method comprises the following steps: Step S〇2: forming a first seat body 3602A, the surface of the first seat body 3602A having a strip first The groove 36 is detached from the first groove 36 〇 4 and is open at opposite side edges of the first seat 36 〇 2A. Step S04: forming a second seat 36〇2B, the surface of the second seat body 36〇2B having a long second groove 36〇4β, wherein the two ends of the second groove 36〇4B are open to the first Two sides of the opposite sides of the 3602B. Step S06: atomizing the inner wall surfaces of the first grooves 36〇4A and the second grooves 3604B so that the inner wall surface becomes the matte structure 3606. Step S08: The first body 36〇2a and the second body 3602B' are accurately combined and the first groove 36〇4A is fitted to the second groove 36〇4B to form a through hole 1378655 3604. It should be added that the material of the infrared filter holder 36 may be plastic or metal. The manufacturing method as described above, wherein the first seat body 3602A including the first groove 36〇4a and the second seat body 3602B including the second groove 36〇4B are formed by using a mold, such that the combination In addition to the mold line, the surface is relatively flat, which is also conducive to manufacturing. The first seat body 3602A including the first groove 3604A and the second body 3602B including the first groove 3604B may be formed by post-processing in a special case. For example, a unitary body 36〇2 is formed first, and after the through hole 3604 is drilled therebetween, the entire seat 3602 is cut in half by the cutter along the through hole 3604. Although it is more labor-intensive, but before the initial mold opening or in order to save the mold cost, you can use the existing mold to make the entire seat 36〇2, and then cut out the first seat 3602A and the second seat 3602B. There is a demand for its industry. Further, the matte structure 3606 of the inner wall of the through hole 3604, that is, the inner wall surface of the atomizing groove, may also have several methods, which may externally destroy the inner wall surface of the original groove to form, for example, sand blasting or other grinding methods. Alternatively, the atomized film may be attached to the inner surface of the original groove to be formed, for example, by using a prefabricated matte film element, such as a sticker, directly attached to the inner wall surface of the groove, or coated or sprayed. An external substance having adhesion or hardening ability, and having a fine uneven structure on the surface after being fixed, can also have the above-mentioned effects. Regarding how to accurately combine the first body 3602A and the second body 3602B, a positioning bump can be disposed on the first body 3602A, and a positioning cavity is disposed adjacent to the position corresponding to the positioning bump, and the positioning convex is disposed. The point is very 1378655. It is easy to be made with the first body 3602A. The positioning hole is also easy to be made with the second body 3602B. When the first seat 3602A and the second seat 3602B are combined, as long as the positioning is performed. When the bump is embedded in the positioning recess, the first seat 3602A and the second seat 3602β are easily combined at a preset correct position.

Therefore, by the method for fabricating the infrared filter holder 36 of the present invention, the first seat body 3602Α and the second seat body 36〇2β are separately formed, and the infrared filter holder 36 can be made to have a large depth and an inner wall atomization. The through hole 3604' and the method saves the manufacturing cost and the effect of the county product is better. With the above detailed description, Wengwang can more clearly describe the spirit and spirit, and is not limited by the specific embodiments of the invention disclosed above. On the contrary, the purpose is to have a == text change and equality arrangement in the patent application of the present invention [a brief description of the drawings] Figure 1 is a schematic diagram of a conventional infrared module; Schematic diagram of the infrared interference of the known technology; schematic diagram of the infrared interference of the technology; Figure 4 is a schematic diagram of the infrared module of the invention; Figure 5 is a schematic diagram of the infrared ray holder of the invention; The explosion map of the seat; and the flow chart of the figure 7 1378655

[Main component symbol description] Light scattering angle An

Infrared module 2, 30 Infrared sensor 6, 6A, 34 Infrared Er First body 3602A Through hole 804, 3604 Effective length Ds Second groove 3604B

Infrared emitter 4, 4A, 32 Infrared filter holder 8, 36 seat 802, 3602 Second seat 3602B Matte structure 3606 First groove 3604A

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Claims (1)

1378655 X. Patent application scope: Bu: A method for manufacturing an infrared ray ray holder, which is disposed between a corresponding set of infrared ray emitters and infrared sensors, and infrared rays generated by the group of infrared ray emitters The through-hole of the infrared filter holder is used to reach the infrared sensor of the group, and the through hole is used to filter out other interference light. The manufacturing method comprises the following steps: forming a first seat, the first seat The surface has a first groove ′, wherein the two ends of the first groove are open on opposite side edges of the first body; a second body is formed, and the surface of the second body has a first surface a groove, wherein the two ends of the second groove are open to opposite side edges of the second body; atomizing the first groove and the inner wall surface of the second groove; and combining the first seat And the second seat body, and the first groove is engaged with the second groove to form the through hole. 2. The method according to claim 1, wherein the infrared filter holder is disposed adjacent to the infrared sensor, and one of the through holes is open adjacent to the infrared sensor. 13