TWI356332B - Optical sensing system and optical sensing device - Google Patents

Description

P356332 IX. Description of the Invention: [Technical Field] The present invention is inferior to an optical sensing system and is related to an optical sensing system which can be used as a human-machine interface. Maoyue [Prior Art] The more diversified and humanized information and communication are driven by the technology day. For example, through touch (4),: into the message 'social use pure or key fresh wheel man-made = type or wheel. Existing _ control panel technology can be roughly divided into f resistance, electric pre-type, ultrasonic type Several. The main components of the resistive touch panel include the upper and lower layers of oxidized conductive _ (ιτ〇). When the object touches the glass to sag and is connected to the underlying conductive surface, the panel detects the voltage signal and determines the coordinate position of the contact point accordingly. 4 The capacitive touch panel consists of a piece of conductive glass coated with conductive material on both sides of the glass, and the outer side of the conductive glass is a layer of anti-scratch coating. The electrodes around the glass plate form a field on the surface of the glass. The conductive material on the inside of the conductive glass provides electromagnetic shielding and signal reduction to maintain the panel in a good, interference-free environment. Whenever the panel is touched with a finger, its finger is coupled to the capacitance on the outer conductive layer to absorb a small current on the panel. The amount of current of each electrode of the slave control panel is proportional to the distance from the finger to the corner. The controller of the touch panel can accurately calculate the current ratio to obtain the position information of the contact point. The principle of the σ optical touch panel is to form a vertically interlaced infrared matrix on the surface of the panel by means of an infrared emitter and a receiver around the panel. Has 5 M56332

When the pen touches a certain point on the surface of the panel, the position of the contact point is calculated by changing the waveform of the d wave. «: The infrared of the contact, the position of the touch panel can be determined. • Set the sound wave around the panel to generate *', when the user uses the finger or touch the touch panel controller will sound according to the sound

Case. In the case of a touch panel, the touch panel is often easily damaged due to the pressing. SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an optical sensation m in which the principle of the control of the optical sweet 啡ρΠ is achieved. By using the present invention, the user can enter the sensing range of the human sensing device with a finger or a stylus, and then the sensing device of the present invention can sense the user. Since the user can achieve the effect of triggering the county without directly touching the sensing panel or touching the sensing panel, the problem that the panel is easily damaged due to the excessive pressing force of the immortal can be improved. A first embodiment of the invention is an optical sensing system. The system includes a pointing device and an inductive device. The pointing device includes a lens and a light source. The light beam provided by the light source passes through the lens to form an optical clamp outside the indicating device. The sensing device comprises a plurality of beads and a sensing unit. One of the target beads is originally disposed at an initial position. When the user manipulates the optical indication device to move the optical tongs to a sensing area adjacent to the target microbead, the target microbead will deviate from the initial position, and the sensing unit generates an inductive signal indicating the indicating device. Points to the sensing area. According to a second embodiment of the present invention, an optical sensing system is also provided, wherein the 6 1 356 332 includes a pointing device and a sensory nightmare 氺 氺 兮 虚 虚 虚 a a a a 该 该 该To provide a =", should be installed ^3 Wei beads, plural

ί早元. Each of the microlens systems corresponds to one microbead; the target bead in the side t bead is originally set at * several W ^ k ^ initial positions. A user can control the movement of the tow, the light beam passes through the corresponding beam, and the mirror will form adjacent to the target microbead - the optical clamp / guide = target ^ίϊ - Inductive signal ^ Γ Used to indicate that the device does not point to the microlens.

According to a third embodiment of the present invention, there is also an inductive device comprising a plurality of microbeads, a plurality of microlenses, a light source and a sensing unit. Each of the microlens systems corresponds to one microbead. The target microbeads in the plurality of microbeads are set at the initial position. The visitor provides a beam that penetrates the plurality of microlenses, and when the surface of the microlens corresponding to the target bead is shielded by the user, the beam will not penetrate the microlens, but via the microlens The reflection forms an optical clamp adjacent to one of the target microbeads to drive the target bead away from the initial position. At this time, the sensing unit generates an inductive signal to indicate that the outer surface of the microlens is shielded.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention. [Embodiment] Referring to Figure 1 (Α), Figure 1 (Α) shows a schematic diagram of an optical sensing system 1 in accordance with a first embodiment of the present invention. As shown in Fig. 1 (Α), the optical sensing system 1 includes a pointing device 10A and a sensing device 11A. The pointing device 100 includes a light source 100A and a lens 100A. The sensing device no includes an upper substrate Π2, a lower substrate 114, and a plurality of beads 116, which are a positive integer. In this embodiment, μ is a positive integer greater than one. 7 112 and other microbeads 116 are arranged in an orderly space in the upper substrate. Figure 2 (Α) and Figure 2 (8) 丨 / can pick Qing or ===' such as the riding of the beads ί pole: w trapezoidal trapezoidal surface. Take the picture from the left m (hereinafter referred to as the target bead) in Figure-(4),)

ί; 1° influence, the target bead is in the figure - (the object is made, ίϊΐ^ίϊΓ 116 can use the light-transmissive or semi-transmissive material to make the glass particles or droplets. In this embodiment, 2 At least part of the outer surface is coated with a conductive material. Since the first: the electrode is at its initial position, the first electrode and the port: the electrode 118 are electrically connected to each other through the target bead. Ground, sense two: IT two poles 118 Β whether

In other embodiments not invented, the surface coated with the beads 116 may also be replaced by a dielectric material. When the surface of the microbeads 116 is soldered, the electrical material sensing unit 118 can determine whether the target microbead is at 100 藉 by detecting a change in capacitance between the first electrode ancestor and the =0 pole 118 .. Side to provide a beam of light. In practice, the beam can be near-skin, 768 nm ' _ or lG64 nm), 氦氖 laser light (wavelength 丨 3 633 nm) green light (wavelength 521 nm or 532 nm) or blue-green light (wavelength 488 _. Figure 1 (A) As shown, the light beam passes through the lens 1 and will be placed on the outside of the light (ie, where the dotted line meets) and form an ίϊΐί Γ p) ° The basic principle of Optical Na is that the lens will be Ray II. The micro-particles are attracted to the i-control particles by the force of the laser light, and the laser beam and the lens can be controlled to capture and ΐ-user-detailed device_the optical 9_microbead J10, and The optical button is sufficient to affect the decision and is no longer conductive to each other; the sensing unit 118 can accordingly direct the device 100 to the sensing region corresponding to the target bead. (4) ϋ, 表面 The surface of the target microbead is coated with a dielectric material, and when the target is deviated by the action of the polar optical morphine, the first electrode 118 Α and the second ^, then the _ _ capacitance will also change. Therefore, the sensing unit 118 can determine whether the y, y or y is directed to the sensing area corresponding to the target bead by the breaking indication # i L1 and the second electrode 118B _ capacitance change. The 诵118 can also be slain by the value of the conduction between the other electrodes on the side _ indicating that the device can be used by the sensory domain. Therefore, it can be seen that the use of the indicator panel is set to: = to achieve the equivalent of pressing the touch panel can be as _ contained electrode influence and move = between the four poles 118D, the third electrode 118C and the fourth power The target beads are electrically connected to each other. In this embodiment, whether or not the through-bead is deviated from its reduced position, the material judges whether the indication (10) is directed to the sensing area corresponding to the target microbead. The electrodes included in the (8) and the -induction unit 118 may also be as shown in FIG. 1; the portion is disposed on the upper substrate 112, and the portion is set to be in the initial position of the target microbead, - Electricity $ plastic and two or two t poles ι ΐ 8 Β will be conductive to each other; once the ticket microbeads are received between the second electrode u8c and the fourth electrode u8d, the poles _ will be conductive to each other. In this case, the early το 118 can be judged according to the conduction/non-conduction of the electrodes above and below the same day. The pointing device (10) refers to which position of the _ county ug. Μ = shows that the beads 116 The optical direction is offset by the straight direction. In this example, the optical sensing system is not subject to the user's shadow, the wheel 110 is mixed with its initial pure position, and the fresh beads 116 can be affected by the light and the tongs. Offset in the horizontal direction. Figure 4 (Α) and Figure 4 (8) illustrate two other examples in accordance with the present invention. In both examples, the surface of the beads 116 is coated with a finish = or The material of the filament provided by the light source 1GGA is completely absorbed. According to the light of the light, when the light beam provided by the light source 100 is totally reflected or fully received by the microbead, the focused beam will instead form a thrust instead of suction on the microbead. The fan shown in Fig. 4, after being subjected to the filament provided by the light source (10), the bead 116 is pushed away from its initial position from left to right. In the example of Fig. 4 (the sample is affected by the filament) 116 is pushed from top to bottom = initial position. /, On the other hand, as shown in Figure 5 (Α) and Figure 5 (Β) It is shown that when a bead 116 is in its initial position, the path of the external light passing through the bead 116 is obtained as 1-356332 first optical path 4; when the microbead 116 is offset from its initial position, the external light passes through the microbead 116 The reflected path is then changed to a second optical path 5. As can be seen, the first optical path 4 is different from the second optical path 5. For the user, such optical path changes will result in different visual effects. According to the present invention, this visual difference can be further used to provide an effect of indicating that the device 1 is left on the panel after passing through the sensing device, which will be described in detail in the following description. Figure 1 (4) and Figure 1 (8) For example, when the sensing unit 118^ is in the first pure inclination of the microbead, it can generate a money signal, and the control unit 12 〇 the target microbead has deviated from its initial position. Then, the dynamic 1 function The force or electrostatic force, etc., causes the target bead to remain in a state of being deviated from its initial position for a period of time after being affected (for example, within five seconds of the sentence. After deviating from its initial position, it is biased匕=Electrical;;i-electrode= 砝 is /, 目心+ 珠的的电反反反,#目i® oblique bead to the attraction of the electrode, return to the original initial position. Make the target loo The function of the unit 12G 'even if the user has thinned the Sweeping Department (10) to move to the example that does not affect the microbeads & not the device is shown. Figure 5 _ Brightness is low. Use this bright area to the user To say: set, after the induction i set m, can provide the finger and then cooperate with the tablet. The effect of the upper and lower marks, 11 1.356332 The figure 6 (t) is the first according to the invention: specific The light of the embodiment (4) is the thinnest, and the sensing device 21 is provided. The upper substrate is disposed as shown in Fig. 6(A), and the respective microlens are respectively corresponding to the microbeads 216. The microlenses 22 pass through. Optical: ί Figure: (9) Where the ten-dotted intersection meets) After the formation - the domain, the target bead; the sensing area of the bead is now set at the paste = start position. Because the target bead is deviated and no longer conducts with each other. ^Hf 2 Lake will judge the singer to sue on the basis of this or in the surface of the haihai 520, there is a dielectric, to the optical clamp _ Deviation from the 'sensing unit 218 can be | έ Similarly, the sensing area of the single 亓 1 Γ Γ 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 The non-government 200 is the other embodiment before the _ is, so that it can also be touched by the operation 230 〇 = can also provide the retention indicator device 2 (8) = 糸 私 私 私 私 私 。 。. Referring to FIG. 7(A), FIG. 7(A) is a schematic view showing the optical sensing device 3 according to the third embodiment of the present invention, as shown in FIG. 7(A). The optical sensing device 3 includes a light source 300, a plurality of microbeads 316, a plurality of microlenses 32A, an upper substrate 312, a lower substrate 314, and a sensing unit 318. As shown in FIG. 7(A), the micro sensing device 3 The beads 316 are arranged in an orderly manner between the upper substrate 312 and the lower substrate 314, and each of the microlenses 32 corresponds to one microbead 316. The source 300 is disposed under the lower substrate 314 and emits light upward. In this embodiment, the microbeads 316, the upper substrate 312, the lower substrate 314, and the plurality of electrodes disposed on the lower substrate 314 are all made of a light transmissive material. Therefore, the light emitted by the light source 300 can penetrate the components and be transmitted to the outside of the optical sensing device 3. As shown in Figure 7 (A), the fourth microbead 316 (target microbead) and the target are from the left side. The microlens 32 微 (hereinafter referred to as a target microlens) of the microbeads is taken as an example, and the first electrode 318A and the second electrode 318B are respectively disposed on both sides of the target microbead. When the optical sensing device 3 is not subjected to When the influence of 黯 is caused, the position of the target bead in Fig. 7(A) is its initial position. Different from the initial position of the target bead

As shown in Fig. = (B), 'If the target microlens is shielded by the user with a finger or other shadow 322, the light emitted by the light source will not be able to pass through the lens. After the lens is reflected, it is inside the wire sensing device 3 and forms an optical network. As long as the position of the optical tongs is not 'initial position', the S-label bead will be driven to bias the first electrode 318A and the second electrode 318B to be inconsistent with each other; the sensing unit 318 can judge accordingly The user is obscured. In order to keep the picture clear, Figure 7 (B) and

" In the case of an electrical material, when the sensing unit 318 can borrow 1656332 ι_, the capacitance between the pole 318A and the second electrode 318B is ironed by the user. k size,

Similarly, the sensing unit 318 can also be L, j, and the Japanese, L, L

Effect: User: Finger v touches the optical sensing device 3 with == micro=.直 直 直 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 光学 光学 光学 光学 光学 光学 光学 光学 光学Then, the control unit blade can be controlled by a magnetic driving force, an optical force or an electrostatic force, and the target bead continues to be in a state of being deviated from its initial position. Even if the target microlens is no longer obscured by the user, The function of the control unit 33 is used

Traces caused by the optical sensing device 3 (e.g., light and dark differences) can continue to be maintained. As described above, the present invention utilizes the optical clamp principle to change the position of the beads in the sensing device to cause the sensing device to generate an inductive signal. When the optical sensing system according to the present invention is used, the user only needs to touch or even directly touch the sensing device to generate an inductive signal for the sensing device, thereby solving the problem that the touch panel may be excessively pressed or pressed by the user. Excessive and damaged problems. In addition, the optical sensing system of the present invention can further clamp the moved microbeads' to cause the microbeads to continue to deviate from their original position, resulting in visible differences in brightness between the user. This visual effect can be utilized to match the application associated with the tablet. 14 The detailed description of the specific embodiments above is intended to provide a clearer description of the present invention and is not limited to the specific embodiments disclosed herein. On the contrary, the purpose is to change and equalize the various arrangements of the patents to be applied for in the present invention. 1.15.356332 [Simple description of the drawings] Figure 1 (A) and Figure 1 (B) are based on this A schematic diagram of an optical sensing system in a first embodiment of the invention. Figure 1 (C) and Figure 1 (D) show an example in which the electrodes are placed on the substrate above the sensing device. Fig.-(E) and Fig.-(F) show an example in which an electrode is provided on both the upper substrate and the lower substrate of the sensing device. the way. Figure 2 (8) and Figure (8) show a schematic diagram of the possible arrangement of the microbeads according to the present invention. The microbeads according to the present invention are moved in the horizontal direction after being affected, and not shown in Figure 4 (Α) and Figure 4 (Β) The embodiment shows the change of the microbeads by the thrust of the optical clamp. The change diagram of the microbeads and the light path of the microbeads of the same position in the figure 5 (8). The specific embodiment of the embodiment Fig. 6 (Α) and the figure Six (8) is a schematic diagram showing the optical sensing system according to the present invention. & The younger brother Figure 7 (A) and Figure 7 (8) show a schematic view of the optical sensing device according to the present invention. 3: Optical sensing device [Key component symbol description] 1, 2: Optical sensing system 16 1.356332

4: First optical path 100, 200: indicating device 100B: lenses 112, 212, 312: upper substrate 116, 216, 316: microbeads 118A, 218A, 318A: first 118B, 218B, 318B: second 118C: third Electrode 120, 230, 330: control unit 322: shield 5: second optical path 100A, 300: light source 110, 210: sensing device 114, 214, 314: lower substrate 118, 218, 318: sensing unit electrode electrode 118D: Four electrodes 220, 320: microlens

17

Claims (1)

L'330Ji2 X. Patent application scope: 1λ - an optical sensing system comprising: a pointing device comprising a lens and a wire, the light beam provided by the light source passing through the lens and forming an optical clamp outside the indicating device (optlcal traP), a user can manipulate the pointing device to move the optical tongs; and a sensing device, comprising: a microbead, a job-positive integer, making a microbead towel--the first bead φ Placed in a first 丨 initial position, / is an integer ranging from 1 to = = ', when the optical clamp is moved to be adjacent to the first! Deviating from the first initial position; and the second sensing unit ', when the first obscuring bead deviates from the first/initial position, the inductive-sensing signal' indicates that the pointing device is directed to the sensing region. 2. The light (4) is a system in which the outer surface of the z-bead and the micro-bead is coated with a conductive material. • 3, the optical sensing system described in item f, wherein the sensing element 4 is obstructing the bead-the first electrode and the second electrode; (4) the first-throwing junction is between the electrodes and the first electrode Turn ί : Ϊ (2) pass, the unit is determined by the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Gu Gan 5, such as the application of the patent side 3 riding the outline of the fine, which recorded the micro 18 1 * 356332 6 8, 9, 1 〇, the influence deviates from the initial position, and the 5 haidi two electrodes are electrically connected to each other. $Electrode 3 = Peripheral optical sensing system, in which the lion outer surface is coated with a dielectric material. The optical sensing system of claim 6, wherein the sensing is performed by the first electrode and the second electrode; the sensing is performed by detecting the first electrode and the second electrode ___Different between the lines to determine whether the //beads deviate from the first/initial position. The optical sensing system of claim 1, wherein the first is a latex particle, a glass particle or a droplet. The optical sensing system of claim 1, wherein the beam is near infrared light, a laser beam, a green light or a blue-green light. The optical sensing system of claim 1, wherein the sensing device further comprises a control unit electrically coupled to the sensing unit, the sensing signal is returned, and the control unit controls the ... In the state of the 'first' position. . X ζ 11. The optical sensing system of claim 10, wherein the control unit utilizes a magnetic driving force, an optical force or an electrostatic force to buckle the third chip. 5" 12, an optical sensing system comprising: a pointing device for providing a chirped beam 'a user can manipulate the indicating device to move the beam; and a sensing device comprising: a bead, a positive Integer, one of the microbeads is originally set at an initial/initial position, / is a range from 1 to 娄 娄 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 One of the third microlens systems corresponds to the Ϊ/bead, and the light beam passes through the ζ·microlens to form an optical smear adjacent to the microbead, and the first yoke is biased to the initial And a second sensing unit, wherein when the third/bead deviates from the first/initial position, the sensing generates a sensing signal to indicate that the indicating device is directed to the second microlens. 13. The optical sensing system of item 12, wherein the beam is greater than the optical sensing system of the range item, wherein the beam is a light beam, a light beam, a green light Or a blue-green light. 15. The optical sensation described in item 12 of the J patent range has a nucleus · slant surface coating - ΐ ί 包含 包含 包含 包含 包含 包含 包含 包含 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微. .... ^potentiating the second electrode; when the electrode = the second button electrode 16, the optical sensing system described in item 215, tilting the first electrode and the second electrode In the first position, the first sensing unit is located at the initial position of the optical sensing microbead according to the fifteenth item of the patent range, the first flute and the younger brother. Z is on. The optical deuterium microbeads described in claim 15 are affected by the optical clamp and are deviated from the second electrode and the second electrode are electrically connected to each other. 19. If the 12th item of the patent application scope should be corrected, the first-electric touch ^:nucleus should be used to judge whether the microbeads are in the initial stage. (4) Capacitance change 2U = please, the 12th item In the optical sensing system, the beads are - milk granules, a glass granule or a droplet. /, the COSCO brother's knives, the optical sensing system mentioned in Item 12, where ϊί一Ϊ contains _ _ connected to the sensing unit - control unit, back to shore 3 sensing signal, mixed with fresh elements control & ^^ The state of the initial position.光学 离 5 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学 光学: Μ a microbead,]V[ is a positive integer, the jy [one of the microbeads ζ• microbeads are originally set in a ζ·initial position, 纟 is an integer ranging from 丨 to char Referring to the display, a microlens, one of the microlenses of the microlens corresponding to the first bead; a light source for providing a light penetrating the jy [one microlens, when the The outer surface of one of the microlenses is shielded by the user, such that the light beam cannot penetrate the second microlens, and the light beam is reflected by the second microlens and forms an adjacent optical phantom, and First, the microbeads deviate from the record - the first, the initial position, the induction single -. The sensing number 'to indicate that the outer surface of the microlens and the outer surface of the microlens is surrounded by the optical sensing device of item 24, wherein the "the/bead is coated with a conductive material on the outside. Brother 2δ' the first optical sensing device' Wherein the sensing is the sum of the first electrode and the second electrode; detecting the position of the first electrode. 疋·通 is disconnected from the 苐, · Whether the microbead deviates from the beginning of the butterfly 27, The optical sensing device described in claim 26, wherein the first/bead is affected by the optical squeegee. Deviating from the first position, the first electrode and the second electrode are electrically connected to each other. The optical sensing device of claim 24, wherein the first/microbead is coated with a dielectric material. The optical sensing system of claim 29, wherein the sensing is performed by the first/microbead-first electrode and the second f-pole; the sensing is detected by detecting the first electrode and the second The difference between the electrodes is used to determine whether the bead is deviated from the first/initial position. Ο:) Ming 2 31, (4): No.: 4 glass device 'where her micro 32, 2 please look around the 24th item of the induction device, the towel is near-infrared light, a laser light, one Green light or a blue-green light. 33, = the optical sensing device according to claim 24, wherein the salt-bearing step comprises a control unit that is electrically coupled to the sensing unit, and the sensor 2 is controlled. Yuan control _ secret beads continue to leave the state of the initial position. Xun eagle 4 brother ζ 34, as claimed in the patent scope of the 33rd optical sensation / microbeads. twenty three