TW200941416A - Radiation guide, detector, manufacturing method - Google Patents

Abstract

A radiation guide (10) for a detector (20) comprises a first interfacing section (11a) for a first electro-optical component (21a), preferably a radiation source, a second interfacing section (11b) for a second electro-optical component (21b), preferably a radiation sensor, a first radiation guiding section (12a, 13a) rendering a first radiation path (14a) in relation to the first electro-optical component, and a second radiation guiding section (12b, 13b) rendering a second radiation path (14b) in relation to the second electro-optical component, wherein the first and the second radiation guiding sections are arranged such that they form the first and the second radiation paths (14a, 14b) such that they intersect at a detection region (15) outside the radiation guide.

Description

200941416 VI. Description of the Invention: [Technical Field] The present invention relates to a radiation guiding device and a profiler, and a manufacturing method according to the preamble of the independent claims. [Prior Art] By way of example, the present invention may be directed to a smoke detector that is provided for detecting solid particles or droplets within a particle such as a fluid (e.g., ambient air). A smoke detector utilizing scattered light intensity is disclosed in US Patent No. 4 1Q3 997, which includes a cover including a light source; a light receiving element; a smoke collecting area 'and a right dry dispersing unit' such as a plurality of wires and Probe the lens or light guide of the misfire guide. The light source and the simple component of the wire_(4)

Mqing does not 'knife-is not used for one of the electro-optical components such as helium or the same as the reflective radiation guiding device or the refractive-guide device or for the electro-optical components for detecting fire, or excessive smoke, or steam , or fog, or a similar situation. A type of smoke detector uses the fact that smoke particles scatter radiation to achieve exploration. Therefore, it is possible to detect the presence or absence of smoke (increased light intensity when smoke occurs) by sensing the intensity of the scattered light at a specific angle of scattering, and also by sensing the transmitted radiation intensity (radiation transmitted when smoke occurs) Reduce the intensity) and detect the presence or absence of smoke. [Summary of the Invention]

This goal is achieved through these independent requests, a prober--~~ and its manufacturing method. The feature of the item is implemented. A preferred embodiment of the invention is set forth in the independent claim set 200941416. Ο 轻 light-directed guiding device comprises: a first interface facing a first electro-optical element #又' 4th electro-optic element is preferably a light source such as a light-emitting diode (LED); facing-second electro-optical element a second interface section, the second electro-optic element being a --camera sensor, such as a photodiode detector or another infrared detector, a sputum-guided segment, which causes - and the - And a second radiation path associated with the second component, wherein the first and the second light-guide segment are so enchanted That is, it intersects the first and the second shot path and the paths intersect at one of the probe areas outside the light guide. Thus - the spokes are caused to the device - the small Wei probe is formed because the t-paths may include - relatively small dispersions (four), such as 30, in the exploration area. Disperse (four)' or a scattering angle of 25 or less or even 2G. Or a smaller angle, the interface section is such that it has an automatic alignment and integration, which can be exchanged for the device to be obtained in one of the appropriate electro-optic elements, or by providing a concave The grooves or all the grooves have a plurality of grooves which are closely matched with the surface σ 卩. The sharp limbs make the device sized and either by direct molding or by providing a plurality of grooves toward the electro-optical elements so that they are easy to assemble. Therefore, the object of the present invention is externally molded by the above structure Light-emitting guides are used in other packaging methods or techniques for such electro-optical components. The 兀 guide will actually become a single solid component. /, this kind of smoke exploration H includes - the above-mentioned homing device, its towel assembly = component and - secret Wei, spoke lion crane and radiation lying signal = 该 该 探 峨峨 峨峨 峨峨 ^, ^ class = 5 200941416 ring . The cover can also accommodate at least the radiation guiding device

The same reference numbers in this description indicate the same features. ~m now has different characteristics. If we are not clearly stated for technical reasons,

A jl face is applied to the application of the present invention as a preferred embodiment of the present invention. However, the features of these descriptions may also be applied to other probes. The probe here refers to both qualitative exploration of the state of interest and quantitative exploration of the state of care. In Fig. 1, 'reference number 10 denotes the light-directed guiding device, and lla and llb show no concave, no rotating interface section; 12a and 12b denote a first and a second light-directed guide 13a and 13b. Through a dome-shaped or convex shape or a lenticular surface portion (also like a Philippine lens); and the sacred table is not the ideal one - and the second light path, By the center of the radiation interface section n and the transparent surface portion 13; 15 represents a probe field; he and 16b represent the first and second surfaces of the radiation guiding device; and 17 represents a further groove . The light-emitting interface sections Ha and lib can be provided for electro-optical components, in particular for a radiation source 21a and a radiation sensor 21b. The radiation layer 2009 41416 surface segment 11a lib allows the radiation to guide the radiation transition between the i 1 () and the individual electro-optical components. It may be that the radiation guiding device 10 is suitably shaped with a portion that is slightly remote from the individual electro-optical/elements, or partially mated or fully mated. Similarly, the radiation guiding device can be molded directly onto the electro-optic element such that the interface segment is a direct bond between the electro-optic element and the material molded thereon. The radiation interface sections Ua, 11b may be different from each other, that is, one of them is formed into an apparent Λ

The grooves are formed by directly molding the miscellaneous guiding means on the electro-optical element. The electro-optic elements 21a, 21b may be in the form of a bezel element, such as a coffee or a conventional plastic packaging device that regularly covers the radiation sensor, or it may be a bare emission placed on a bonded lead frame, respectively. A semiconductor wafer (such as an LED chip, such as a laser source such as a laser diode) and a sensor semiconductor B (such as a photodiode or a photoresistor (ldr) on the substrate). In the latter case, the light guide device 1 (), in addition to defining the optical path 14 and tearing, forms a package surrounding the source 21a and the radiation sensor 21b. In Fig. 1, it is assumed that the upper radiation path 14a is guided from the illuminating source 21a via the interface section 11a, the radiation guiding means to the illuminable surface portion 1 on the apparatus body, such as to the probe area 15. Light, and the lower light path control Hb is guided to the light-emitting sensor body through the second permeable light-emitting surface portion, and the light-emitting guide body and the interface portion 11b, and may be scattered toward the light-emitting sensor m. Light. The light path paths 14a and 14b intersect at the probe area 15, and the angle α may be less than 20. Or less than 15. . The overall shape of the radiation guiding device may be a rectangle, that is, a face having three pairs of surfaces. More specifically, the light-guiding guide has at least two opposing first and second surfaces 16a and a pair of opposite surfaces, and one of the opposite surfaces, 7 200941416, having such interface segments for the electro-optic elements. Ub, while the other surface has surface portions 13a and 13b that are permeable to radiation. The intersection of the radiating paths 14a and 14b can be achieved by optically deflecting the radiation appropriately and intersecting it to achieve the desired curvature. However, it can also be realized by the interface sections 11a and lib being further apart by the transparent surface portions 13a and 13b. In this particular embodiment, the individual distances of the individual centers are represented by d2 and dl, and thus 汜 is smaller than dl. The grooves and the permeable surface portions or the optical axes of the electro-optic elements are tiltable with respect to the vertical and horizontal directions, and the angle between the grooves and the level is preferably "/2". The radiant surface portion is known, 13b, and the lenticular shape is used to cause a certain degree of focus or light-off, as described in the application of the same applicant, which is incorporated by reference in the earlier application No. DE 102007 045018.6. It is not used for the reflective radiation guiding device or the refractive radiation guiding device of the component or all components of the fresh photovoltaic component. This focus does not have to be in the probe area 15. The focusing effect can also be used to convert a divergent county from the source into a more parallel or slightly parallel beam toward the probe area. The focusing surface portion may be provided in such a way that it faces the probing area 15, as shown in Figure 1, and/or is provided in such a way that it faces the electro-optical component at the interface section 11a, lib (figure Not shown in the )). In general, the focus can be designed such that one of the elements of the electro-optic elements or all of the sides of the electro-optical elements, the holes of the light path and the elements (LED wafer active area, LED holes, sensor wafer area) The individual active area or effective area of the detector hole has a value of _. It may be such that the aperture is substantially the same as the active area or effective area of the individual component. On the side of the probe area 15, the aperture can be adjusted such that the probe area has a desired size. The main sound = the exploration area is defined by the volume of the space, and the space volume is defined by the intersection of the radiation paths of the optical elements. Λ 200941416 is a large one or a casting, and A material of a good material. It can be a resin of any desired spectral characteristics _ reasonable, but it can be accepted along the optical path by a certain amount = sorrow reduction. However, 'for example, it can include the prevention of unnecessary nucleation. Thus, the wire-like effect 13b can be made integral with the rest of the body. Therefore, it is composed of a material, or it can be a separate part molded into the body. ❿ ❹ The surface 16b is The distance segment 中心 of the center of the probe area 15 may be less than twice the length of the radiation guiding device (the two surfaces (10) and the maximum distance, the distance), preferably less than 5 times the length. The distance d3 may be less than 5 shy meters. , or less than ^ m, or less than 3 cm. The length of the radiation guiding device may be smaller than its impact h (in the direction away from each other), or its size phase or its size is larger. Less than the height of the radiation guiding device The center distance, etc., d2 in Figure 1 may be less than 3 cm, or less than 1 cm. - or all of the grooves may be preformed to at least partially closely fit the surface. The shaft can be provided to the electro-optic element or provided to one of the electro-optic elements. Therefore, the electro-optic element can be directly fitted into the individual recess, or it can be closely fitted - in the adapter, the adapter is then tightly incorporated into the recess. And as described above, the bare-emitting H-semiconductor is directly molded or encapsulated using a directional guide H) 'another-specific relationship _-injection guide Crystal >} with the sensor semi-conducting emitter semiconductor wafer on the semiconductor crystal frame, in this case 'the grooves Ua and 11b are omitted and are indistinguishable from the radiation guiding device 10. Due to this feature Therefore, the structure can be self-aligned, so the assembly of the whole maid sweater becomes material. It can be used in the tightly-fitted 200941416 tight fit to make the movement and touch-on-light as needed when placing the components. Component touch guide rib groove The through-light of the molded electro-optical element is ===%, which is thin, and the electro-optical light is placed on top of it: the dry-to-send-to-mounting--surface mountable, the dry right-hand contact 塾24, the contacts Pad 24 ^ to h and other electric light 7C pieces and related circuit suitable # wiring. The radiation guiding device itself can be directly supplied with wire φ can be loaded with the words ':= shooting guide body - circuit board can be mentioned two The ejector guiding device 1G may include another groove 17. The groove may provide a circuit component that is protruded by a circuit board of two = τ. Also, it may be used for two "sources" so that the other groove may be formed 17, and may have a disk, said "face segments 11a and 11b have the same characteristics. Such a second light = light in a wide source of radiation. It may have its own - the radiation path U Γ light path and the Described light path 14a and shot/5 two: the secret from the first radiation source to the field 1111 shot of the jurisdiction SUf the first source 2ia radiation of the reverse road 2: to; ΐ之:ΐ : The second radiation source can also be placed closely together, so that he is sufficiently focused and radiated to guide the precision or use the same directional path 1 (5), when the source is shredded Two fixed wheel sources can be placed side by side, _丨t to the surface of the paper - the angle between the individual radiation paths and the reverse path of the two sensing 11 in the vertical direction, and the corresponding light source and its corresponding interface segment And determine the different angles. The 200941416 module can be designed to accommodate a packaged LED or can be designed to accommodate only LEDs. "The color features provided to the radiation can come directly from the LED, and the LEDs from the LED (LED package) A sealant, or a colored portion from the projection guide body 1. These discrete colored transparent portions can be molded into the crucible guide body, or it can be constructed entirely of suitable colored materials.

When the LED guiding device is only for accommodating the LED chip, the two irons can be provided in close proximity to each other, and the same optical path 14a and the optical structure facing the detecting region 15 are continued. The radiation source of the different spectral characteristics may include the same radiation emission, but thereafter there is some spectral differentiation in the optical path somewhere, that is, in the technical sense, it also exceeds the parasitic source of the radiation. Use a plurality of spectra, when the source is levied, the source of the spectral features can be off-time or money. If the source of the spectral features is driven by =, the signal is subtracted (4), and the signal is measured. The output of material (4) can be properly processed or output as early as possible. When multiple spectral features are used, it can include visible light and ultraviolet (uv)-infrared and infrared (ir) radiation. When only one radiation source is used, It can use visible light and/or ultraviolet (υν) radiation and/or infrared light radiation. The radiation to the device 1G can further have a connection device for attaching the component to the directional device. Used to provide a kind of funeral effect An integrally molded elastic portion that provides for attachment (for example) of electricity, plates or guides to the body of the device, and domain preparation for attachment of the radiation guiding device to another - a larger component or circuit board or assembly location. Figure 2A shows a complete smoke detector comprising the light directing device 10 described herein. In addition, 'the electro-optical components are included in the individual interface segments 21a (original source, LED, laser source, laser diode) and 21b (light-sensing 200941416 detector, infrared sensor, thermoelectric element, photodiode can provide a circuit board or lead frame 23, Or the circuit board or lead frame 23 can be attached to the projection guide 10 in a suitable manner, that is, by clamping or bonding the components to each other, or by tanning the radiation guide to the lead frame or circuit On the board 23. The board can be routed, and it is equally possible to have circuit components for power supply, radiation source drive and sense set and measurement, signal output. The further steps can be applied to surfaces such as contact pads 24. Assembly equipment. The board or guide The wire frame 23 can be connected as shown to cover the first surface.

And 'it can also be provided on the side table® (such as the top surface or the silk surface in Figure 2A). The transparent surface portions i3a and 13b such as shai are shown as the surface portion of the molding material itself. It can be molded into a molded mold by suitable forming. In a specific embodiment of the display, the 'transparent surface portions 13a, 13b may be a surface of a separate shape, such as a '-lens,' which is formed separately from the body of the body. Or connected to the radiation guiding device body. The smoke detector may include a cover 22 that is permeable to smoke but is lightly covered. This bypasses the probe area 15 to prevent false detection due to environmental influences (UV light (UV) male outside line (10)). The cover masks the radiation in such a way that the radiation cannot reach the sense of radiation, so as to avoid flooding: entering the reverse light path towards the sensor and causing false detection. The at least part or all of the radiation guiding means is preferably such a structure, i.e., ===. The _ may be used for fixing the Cong probe to the expression of -^ for the radiation guiding device. The surface 叮 assembly device 4. The cover may be - a single-part component or - a plurality of parts 12 200941416 pieces 0 = touch n of the monolith _ extended to its _ 28 probe area 15 may be at or near the (-) end 28, and the Isoelectric components occupy. 2B shows a portion of this embodiment, 1 molded directly onto the electro-optical assemblies 21a, 21b. The middle shot ^ device

Providing - its own electrical connector is the mechanical contact surface between the individual electro-optic elements, m and the radiation guiding/setting = the material. Figure 3 is a schematic representation of a circuit that can be used with the smoke detector. Left source side. The right side is the radiation sensor side. - The power source 31 is used to supply the radiation sources of the LEDs or LEDs. In a direct embodiment, the source of radiation may sustain radiation' or when, for example, the source of power is a battery, energy is taken.

However, the source of radiation can also be driven according to established or set means. For example, δ ' can have varying strengths that can be achieved at a certain frequency. This change can be a sinusoidal wire or can follow a fast phase/closed mode, shouting itself and intermittently supplying it. Thus, the radiation transmitted towards the probe area 15 is shown as a time varying pattern, and this time varying pattern will also appear in the sensor signal. In contrast, noise radiation is the least likely to display this pattern and can therefore be filtered out. The pattern can be a frequency and a spectral pass band consistent with the drive frequency of the radiation source can be provided on the receiving side. The sensor 21b itself is provided on the side of the radiation sensor. It can be - light 13 200941416 electric diode or any (four) sensor or infrared sensor. Available - Amplifier % Amplification - Sensitive n signal may be weak. For the sensor, - compared to the amplifier μ, its operation and how to drive the light source = phase = output # number can be - more complicated or - single method. This measurement can be implemented with respect to the crane mode for driving the _ source block %. Recording this box 36 does not have to be silk - its own components. It mainly means that the light source and the emission Im match the reading and running, and how the science and technology are. However, in a complex, drive device, it should actually be a generator of the type, ^

The device simultaneously adjusts the chicken portion of the radiation source and the portion of the touch to operate in a matching pattern. At the end of the transmissive end 35, a certain more accurate and less accurate output signal is obtained. In the case of a subsequent transmission, the output terminal 35 may be a -class secret number but it may also be a digital signal. Off # can be used to test the secret wall of the Wei wall. The fresh memory/touch signal may be the digital signal after AD conversion.

In general, the smoke detector can be provided without a light mask and, therefore, can be constructed as its main component. This feature is activated when a more complex light source is used to drive the H signal measurement as described. The primary purpose of the cover is to mask unnecessary implants into the sensor. It also prevents insects from entering, because insects and other small animals enter, which can lead to misdetection. If not provided - for radiant hoods, the exploration area can be a free space. In the installation mode, the smoke detector can be directed downward from the top plate (the disk is 2A contrasted, and the assembly position is rotated clockwise by 9 turns). The probe will monitor the phase of the freedom «. In order to avoid the mistake 23 in the reading form - a particularly suitable signal measurement. For example, it is only during the period of time to detect 14 200941416 until the occurrence of smoke or repeated detection of the presence of smoke to determine the presence of smoke, so as not to cause false detection due to a coincidence reflection. Figure 4A shows a modified embodiment of the radiation guiding device 10. In Fig. 1, the focusing portions on the second surface 16b are independent of each other. In the particular embodiment according to Fig. 4A, since it is too large, it is generated as a body and occupies the entire second surface. This causes the number of paths to increase, and thus the intensity to increase 'or the strength to be the same and the drive to be low. Therefore, the lens portion or the dome-shaped portion or the convex portions 13a and 13b are formed such that they are in contact with each other on the ❹ 二 二 , and preferably the second surface is completely occupied. ^ The equal focus portion can be shaped into a standard lenticular or Fresnd lens shape. In Fig. 4a, the line 41 is adjacent to the two dome-shaped portions i3a and the side limits 42a and "^^ or both of the dome-shaped portions 13a and 13b. Closer to the first surface (i.e., closer to the left in Figure 4A). Figure 4B shows a plan view of the left surface of Figure 1. The two interface segments 11a and 11b and a third of the electro-optic elements can be identified. a recess 17, which can be used for both circuit components and another electro-optical component. The profile Ua: % and 17 can be displayed as contours of the radiation guiding device, or can be displayed - obviously concave The edge of the groove. As already described, when a second radiation source is used, the interface segment for the interface can be placed side by side with the interface segment of the first radiation source. The width w of the radiation can be less than 2 Cm, or less than 1 cm. A method of manufacturing a smoke detector includes the steps of pre-assembling the electro-optical elements into a lead frame; and molding a radiation guiding device onto the assembly as described above. Having more of the foregoing features. The mold is formed according to the desired shape of the guide device There may be a plurality of alignment portions held in an aligned manner, and the components will be molded into the profiler prior to molding, such as the lead frame, optical screening program, lens portion, etc. 15 200941416 Tobacco gaseous fluid A mixture of solids that are carried inside, but can be used for its hull compound. The buddy is - (4) - carrying fluids. ",,,,,,,,,,,,,,,,,,,,,,,,,,,, Other probes outside the detection of anti-mystery. It can be known or controlled to polarize or coherent Korean (laser) or modulated light (am, fm, FMCW). Determine the amount of radiation related, such as - or more on / off, intensity, frequency (especially amplitude modulation, tone change, blow), propagation time, polarization state or phase. The angles of the optical axes may be less than 2 〇. Or 1〇. Or 5. It can be parallel (the angle is 〇.). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view of a light-guided guide; FIG. 2A and a cross-sectional view of a complete smoke detector; FIG. 3 is a schematic diagram of the smoke detector. 4A and 4B are different views of a radiation guiding device. [Description of main component symbols] The center distance of the surface part of the dl is the distance d3 from the center of the interface section. The distance from the second surface to the center of the probe area is h. Total height 1 Total length of the lost angle 10 lla lib 12a The first interface section of the radiation guide Second interface segment first radiation guiding segment 200941416 12b 13a 13b 14a 14b 15 16a 16b ❿ 17 20 21a 21b 22 23 24 28 29 ❹ 30 31 32 33 34 35 36 41 42a second radiation guiding segment first radiation guiding segment second radiation Guide segment first radiation path second radiation path probe region radiation guide device first surface radiation guide device second surface groove probe detector radiation source lucky sensor permeable particle permeable cover circuit board or lead frame contact pad One of the smoke detectors, the other end of the smoke detector, the power supply, the circuit power, the radiation drive, the radiation sensor, the signal acquisition, the measurement section, the radiation sensor, the signal processing, the radiation source line, the side limit, 17 200941416 42b, the side limit

Claims (1)

200941416 VII. Patent Application Range: 1. A radiation guiding device (10) comprising: a first interface segment (na) facing an electro-optical component (21a), the first electro-optic component (21a) preferably being a a radiation sensor, a first interface section (11b) facing a second electro-optic element (21b), the second electro-optic element (21b) is preferably a radiation source, and a first radiation guiding section (12a, 13a) The first radiation guiding segment causes a first radiation path (14a) associated with the first electro-optic element to be formed, and a second radiation guiding section (12b, 13b), the second radiation guiding section forming a second radiation path (14b) associated with the second electro-optic element, wherein the first and first radiation guiding sections are One way of arranging, ie, opening the first and second radiation paths (14a, 1), such that the first and second radiation paths intersect at one of the probe areas (15) outside the radiation guiding device. 2. The device for guiding a woman according to claim 1, comprising a suitably shaped, preferably convex surface portion (1)a, 13b) for radiation to converge in the probe region (15) or to converge in the electro-optic element At the second or all components. 3. If you apply for a patent range! The light-guided first-and second-stage segments, the first-and second-stage alignments, and the large-volume cast body of the radiant material. 4. The radiation guiding device of claim 3, wherein the substantially cast body has at least two opposing first and second surfaces (16a, i6b), wherein = first and second a radiation guiding device formed in the surface of the surface (16a), which allows the light to pass through, and which is permeable to light radiation, wherein at least one of the " a groove with a tight fitting portion, the compact 19^0941416 adapter is at least partially partially accommodated by the electro-optic tree or a suitable 7. field 1st position _ 射 射 , , i i at least :^Ϊ:Guide,:,-Molded part is formed』: 'Two systems to the second part of the electro-optical component;=Read-partial part Nagu set, each - such light distance from the center distance (dl) is less than The interface in the interface section; 8. If you apply for the patent scope! The device with a surface mountable device, the n-direction device, on its outer surface 9 as claimed in the patent scope! As stated in the item: 7), for housing - components, especially - circuit components and two (two) 45. Preferably less than 30. . It. The radiation guiding device of the first axis of the sea is less than 12. The radiation guiding device according to any one of the claims 1 to 1G, wherein the center distance (10) in the interface segments is less than 3 cm. Good less than 2.5 meters. The A device is 5 cm away from the ί. The distance (d3) of the garment (he) is less than 20 200941416. 14. A probe (20) comprising: the device of any one of claims 1 to 13 wherein the radiation is directed to the person: the broad radiation sensing The device (21b) is mounted separately for the power supply circuit (30), the radiation drive (32) and the radiation sensing n signal acquisition and processing (33 to 35). The profiler includes a definition of 杳 杳, 2; granule cover (22), qing 2) also runs ^ 'Miscellaneous City Set (10)), or connected to the radiation-guided package 16 ^ application ^ range item 14 The probe device, wherein the circuit (10) includes a second module; a) is configured to acquire the radiation sensor signal, and the radiation sensor signal is measured according to the pre-turn mode. i7.m is described in item m a profiler having an elongated outer portion 5 in which the domain (8) is located, 8), and the electro-optical components (21a, 21b) are located at the other end thereof. Radiation-guided device == to at least one of the electrical-grade components, which may be a profiler as described in paragraph 19. = ΙΓ^14, The electro-optic component f is a lead frame, and the radiation guiding device (10) is mounted on the lead frame, preferably molded onto the lead frame. 20., Patent Application No. 14-19 A profiler according to any one of the preceding claims, wherein the radiation source (21a) comprises a led. 21. The prober sensor (21b) according to any one of claims 14 to 19, comprising An IR sensor, especially a thermoelectric element. 21 200941416 22. For example, in the patent application range 14 to the driving mode of the radiation source, the two-segment detector, the amplitude mode of the fixed amplitude mode is preferably A method of manufacturing a profiler, comprising the steps of: constructing a profiler, comprising: pre-assembling an electro-optical component into the method of claim 14, wherein the probe is a smoke detector. Within a lead frame; and the radiation target _13 Liu--- twenty two