TWM258357U - Optical trackball structure - Google Patents

Description

M258357 IV. Creation Instructions (1) '----- [Technical Field to which the New Type belongs]-This creation is about an optical trackball structure, especially a trackball structure that can be mounted on an input device, where The structure system includes a light-emitting element, an identification element, an optical base and a light-transmitting plate, wherein the light-emitting element is a light source reflecting through the optical base and the light-transmitting plate to a surface of the trackball. The distance and direction of the portion projected onto the light source can be detected by the identification element and a displacement data can be calculated. [Previous technology] According to the traditional mechanical mouse structure, please refer to FIG. 1, which includes a base body 11, a base plate 14 and two coding devices Al and A2, and a trackball 111 is provided in the base body U. It is installed at a proper position on the substrate 14 and two openings 124 and 134 and two coding devices Al and A2 are provided on the substrate 14 adjacent to the base 11 respectively. The two coding devices Ai and A2 are respectively composed of a grating wheel 121, 131, a light transmitter 122, 132, a light receiver 123, 133, and a wheel rod 125, 135, wherein the grating wheel 121, 131 can be respectively opened in the second opening. The holes 124 and 134 rotate freely, and the wheel rods 1 2 5 and 1 3 5 are attached to the trackball 111. When the trackball 111 rotates, the wheel rods 125 and 135 can be driven, and The other ends of the wheel rods 125 and 135 are connected to the grating wheels 1 2 1 and 1 3 1 so that the grating wheels 121 and 131 can also follow the rotation of the wheel rods 125 and 135 to the opening. 124, 134 rotate 'therefore' the openings 124, 134-the light emitters 122, 132 on the side and the light receivers 123, 133 on the opposite side, just by the A plurality of light holes 126, 136 provided on the grating wheels 121, 131, so that the light

M258357 4. Creation instructions (2) The light emitted by the transmitters 122 and 132 is received by the light receivers 123 and 133 through the light holes 126 and 136. Thus, when the trackball 111 rotates and drives the wheel lever 1 2 5 , 1 3 5, when the grating wheel 1 2 1, 1 3 1 also rotates in the opening 1 2 4, 1 3 4, a decoding circuit can be made to calculate through these optical holes 1 2 6, 1 3 The change of light projected by the 6 light receivers on the light receiver 1 2 3, 1 3 3 is calculated-a movement data is transmitted to a host computer (such as: Desktop Computer and Notebook Computer (Notebook) ), Etc.), so that the host can control a cursor on a display connected to the host according to the mobile data. The mechanical mouse structure as described above, if it is to be installed in the housing of an input device (such as: numeric keyboard, keyboard, remote control, joy stick, etc.) When inside, the structure of the structure is too complicated, so that the housing must have a corresponding accommodation space, so the volume of the housing cannot be reduced. [New content] In view of the shortcomings of the mechanical mechanism of the conventional mechanical mouse structure, the volume cannot be reduced. Therefore, the creator has developed a design of an optical trackball after long-term efforts and experiments. (Opt ical Track Bal 1) structure. _ One of the purposes of this creation is to provide an optical trackball structure, which is provided with a circuit board, an optical base, and a light transmitting plate in an input device, wherein the light transmitting plate is provided with two elastic card slots. , The two sides of the optical base are respectively provided with ^ engaging parts, so that the two engaging parts and the two card slots can be engaged with each other *

Page 6 M258357 IV. Creative Instructions (3) 'Together, the optical base is connected to the transparent board. In addition, a board is connected to the circuit board, and a trackball is provided in the base. The optical base and the light-transmitting plate are housed between the base body and the circuit board, and a light emitting element is disposed on the circuit board adjacent to the optical base, and the light emitting element can project a light source to the An optical base, and the light source can be reflected on the trackball by the optical base, and the circuit board is provided with an identification element at a position facing the trackball and projected onto the light source, and the identification element can detect the The moving distance and direction of the part of the trackball projected to the light source, and calculate a displacement data, and transmit the displacement data to a host, so that the host can

The displacement data 'controls a cursor on a display connected to the host. In order that the review committee can further understand and understand the purpose, shape, structural features and effects of this creation, the following examples are used in conjunction with the drawings. The detailed description is as follows: [Embodiment] This creation is an optical 〇ptical Track Ball structure, please refer to Figure 2, this structure can be installed in an input device 3 〇

(For example, the keyboard (Key Board), remote control (Remote Control), joy stick, numeric keypad, etc.) inside the casing 33 (as shown in Figure 4), the surface of the casing 33 A track ball groove 31 ′ is provided, and the optical track ball structure is from the surface of the housing 33 to the bottom surface, and a track ball 211, a body 21, a light transmitting plate 22, an optical base 23 and a circuit are sequentially arranged. Board 24, wherein the trackball 211 is set in the base 21, and

Page 7 M258357 IV. Creation instructions (4) A part of it protrudes out of the opposite side of the track ball groove 3 丨, and a circuit board 24 is provided at a position adjacent to the optical base 23. The light-emitting element 241, a light source emitted by the light-emitting element 241, can be reflected to the surface of the trackball 211 through the optical base 23, and an identification is provided on the circuit board 24 at a position opposite to the trackball 21 Element 2 4 2 enables the distance and direction of the trackball 2 11 to be projected onto the light source. The identification element 2 4 2 can detect and calculate a displacement data, and transmit the displacement data to A host (such as a personal computer (PC), etc.) 'enables the host to control a cursor (not shown) on a display connected to the host according to the displacement data. In a preferred embodiment of the present invention, please refer to FIG. 2 again, the base body 21 is provided in the housing 33 at a position adjacent to the surface of the housing 33 ', wherein the base body 21 At the central position, there is an accommodating space 213 for accommodating the trackball 211, and at least one first positioning element 214 is provided on one surface of the base body 21 facing away from the surface of the housing 33, and at the same time, A body ring 212 is pivotally arranged on one side adjacent to the surface of the casing 33, and the trackball 211 can be confined within the base body 21 by the base body ring 21 2; One side and the other side adjacent to the surface of the casing 33 are respectively provided with circular holes 215 and 216. When the trackball 2 11 is installed in the accommodation space 2 1 3, the trackball 211 can pass through the two The circular holes 215 and 216 are exposed outside the base 21. In this embodiment, please refer to FIG. 2 again, the light transmitting plate 22 is provided in the housing 3 3 at a position of the base 21 facing away from the surface of the housing 33, wherein the light transmitting The plate 22 includes a slot 222, a stopper 221, and two card slots 223 1, 2232. The slot 222 is disposed opposite the track ball 211.

Page 8 M258357 IV. Creation instructions (5) Placed through the transparent plate 22, and the stopper 221 is provided on one side of the transparent plate 22 facing away from the base 21 and adjacent to the opening One end edge of the groove 222, and the two card grooves 2231 and 2232 are respectively provided on one side of the transparent plate 22 provided with the stop portion 221, and adjacent to two sides of the slot 222, and in the The light-transmitting plate 22 is provided with second positioning elements 224 opposite to the first positioning elements 214, and the combination of the second positioning elements 224 and the first positioning elements 214 makes the light-transmitting plates 22 and The base 21 can be connected to each other. In this embodiment, please refer to FIG. 2 again, the optical base 23 is provided in the housing 3 3 at the position where the transparent plate 22 faces away from the base 21, and the optical base 23 is A lens 233 is provided on one side facing the circuit board 24, and the lens 233 can be directly facing the slot 222, and one end of the optical base 23 adjacent to the lens 233 is provided with a reflecting portion 232, and the optical base 23 A light guide lens 2 31 is provided on one end of the reflecting portion 232 facing away from the lens 233. Furthermore, one side of the optical base .23 is provided with an engaging portion 2341, and the other side is provided with another engaging portion 2342. When the engaging portion 2341 and the other engaging portion 2342 and the two engaging slots 223 1 and 2232 are engaged with each other, the optical base 23 can be set on the light-transmitting plate 22, and then the base 21 and The optical base 23 can accommodate the light-transmitting plate 22 between them, and one end of the optical base 23 away from the reflective portion 232 can receive the stopper 221. The design of the two clamping slots 2231 and 2232 and the stopping portion 221 can make the optical base 23 difficult to shake. In this embodiment, please refer to FIG. 2, the circuit board 24 is disposed in the casing 33 near the bottom surface of the casing, and a light emitting element 241 is disposed on the circuit board 24. An identification element 242 and a photomask 2 43 are opposite to the circuit board 24. The optical base 23 is provided for

M258357 IV. Creation Instructions (6)

An opening 244 is received in the optical base 23, and the light-emitting element 241 is disposed on a side of the circuit board 24 facing away from the base 21, and faces the optical base 23 and faces the light guide mirror 2 31. At the position, the light-emitting element "I can project a light source toward the optical base 23, and reflect the light source to the trackball 2 11 through the optical base 23, and the identification element 2 4 2 series It is set at a position where the circuit board 24 faces away from one surface of the base 21 and faces the opening 244, and the opening 244 can directly face the slot 222 and the lens 233, and can transmit the Displacement data to the host (such as Desktop Computer and Notebook, etc.). Furthermore, the photomask 243 is attached to the bottom surface of the circuit board 24 facing the casing 33. The light-emitting element 241 faces the light-emitting element 241 and covers the identification element 242, so that the light-emitting element 2 41 can focus the light source to the optical base. In addition, the circuit board 24 is opposite to the first A third positioning element 245 is provided at each of the two positioning elements 224, and the third positioning elements 245 and The combination of the second positioning elements 224 enables the base 21 and the light-transmitting plate 22 to be disposed on the circuit board 24. Also, as shown in FIG. 3, when the optical base 23 is accommodated In the opening 244, the light guide mirror 231 can be directly facing the light emitting element 241, and the identification element 242 is facing the lens 233 and the slot 222, and the light emitting element 241 projects the light source through the light guide. After the light mirror 231 is reflected by the reflection portion 232 and passes through the slot 222 and the circular hole 216 (as shown in FIG. 2) to the trackball 211, the identification element 242 can pass through the lens 233 , The slot 222 and the round hole 216 'and detect the trackball 21] [the distance and direction of the part being projected onto the light source, then when the trackball 2 丨 丨 is rotated

M258357 on page 10, when creating the description (7), 'the recognition element 242 can be used to detect the moving distance and direction of the trackball 211', and the displacement data is calculated, and a transmission line or a wireless transmission method (such as : Radio technology (Radio), infrared technology (Infrared), and Bluetooth technology (Bluetooth), etc., and the displacement data is transmitted to the host, so that the host can control and communicate with the host through the displacement data The cursor of one of the connected displays. 〆In this creation, please refer to Figures 2 and 3 again. The trackball 2 11 f is a circular sphere, and it has been spray-painted (baking paint, sand-blasting, or gradation treatment, etc.) into a matte surface. The surface of the trackball 2 11 can prevent the trackball 2 11 from being too smooth, so that the light source reflects on the trackball 2 u, the identification element 242 is disturbed by the light source, and the change of the trackball 211 cannot be detected. , And the displacement data of the moving distance and direction of the trackball 2 11 cannot be calculated. • In this creation, please refer to FIG. 2 again. The engaging portion 2341 and the other engaging portion 2342 can be engaged with the two card slots 223 1 and 2232. The two card slots 2231 and 2232 have elasticity. Therefore, after the engaging portion 2341 is placed under the engaging slot 2231, the other engaging portion 2342 is pushed in the direction of the light transmitting plate 22 to make the other engaging portion The portion 2342 is locked under the card slot 2232, so that the optical base 23 can be fixed on the transparent plate 22 without being shaken easily. Please refer to FIG. 4, which is a preferred embodiment in which the present invention is applied to a keyboard. The keyboard is provided with a housing 33, and a track ball groove 31 (such as 3) and a plurality of keys 32, and at least one fourth positioning element 246 (as shown in FIG. 2) is added to the circuit board 24

Page 11 M258357 IV. Creation instructions (8)) and the fourth positioning element 2 4 6 can install the circuit board 2 & in the housing 33 and make the trackball 211 It can be exposed to the outside of the housing 33 by the track ball groove 31. In this way, when using the input device 30, the user can also easily rotate the track ball 2 11 to control the track ball 2 11 Cursor of the display. i ~ In this embodiment, please refer to FIG. 4 again. The input device 30 may be provided with a control circuit. The control circuit and the host may be connected to each other, and the identification element 242 (such as the third (Shown in the figure), the calculated displacement data can be transmitted to the control circuit, and the displacement data can be transmitted to the host through the control circuit. In this way, the optical trackball structure can share the transmission line with the input device. (Or wireless transmission) for the transmission of data. The above description is only for the original creation. The structural features of the work are not limited to the field of creation, and the scope of the patents in this case can be easily considered. As one of the best specific embodiments, however, any person skilled in the art who is changing or modifying can also cover

M258357 Schematic description [Schematic description] Figure 1 shows the structure of a traditional mechanical mouse. Figure 2 is a three-dimensional exploded view of this creation. Figure 3 is a schematic sectional view of this creation. Fig. 4 is an embodiment in which the author is installed on a keyboard. [Representative symbols of main parts] Seat body ............ Track ball ............ 211 Seat ring ... ....... 212 Receiving space ...... 213 First positioning element ... 2 14 Round hole ... 215, 216 Light-transmitting plate ...... .. 22 Stopper ......... 221 Slots ........ Slots ... 2231, 2232 Second positioning element ... 224 optical mount ......... 23 light guide ......... 231 reflecting part ......... 232 lens ... ............. 2 33 engaging part ......... 2341 another engaging part ... 2 342 circuit board ... .. 2 4 Light-emitting element ......... 241 Identification element ......... 242 Mask ......... 243 Opening .. ............. 244 Third positioning element ... 245 Fourth positioning element. &Quot; 246 Input device ......... 30 Track ball groove ... ... 31 Buttons ......... 32 Housing ............... μ

Claims (1)

M258357 V. Application for patent scope 1. An optical trackball structure is provided in a housing of an input device, and a control circuit is provided in the housing. The control circuit is electrically connected to a host, and the structure includes : A trackball, which is a circular sphere; a body, which is located in the casing near the surface of the casing, and has a receiving space for installing the trackball at the near central position, The trackball can be protruded out of the two opposite faces of the base body by providing a circular hole on one side and the other side of the base body adjacent to the housing surface, respectively, and the base body faces away from At least one first positioning element is provided on one surface of the casing surface; a light-transmitting plate is provided in the casing at a position where the seat body faces away from the casing surface, which is close to the casing surface, at A slot is provided at a position opposite to the trackball, and a second positioning element is provided at a position on the light-transmitting plate opposite to each of the first positioning elements, with each of the second positioning elements and each of the first The combination of the positioning elements enables the light-transmitting plate to be mounted on On the base body; an optical base is provided in the housing at a position where the light transmitting plate faces away from the base body and can be connected with the light transmitting plate; a circuit board is provided in the shell A position close to the bottom surface of the casing in the body, and an opening for receiving the optical base is provided on the body; a light emitting element is provided on a surface of the circuit board facing the bottom surface of the casing, and faces the optical base At the position, the light source is directed to the optical base to reflect the light source onto the trackball via the optical base; a photomask is provided on a surface of the circuit board facing a bottom surface of the housing; The position adjacent to the light-emitting element is used to shield the light-emitting element, so that the Page 14 M258357 V. The scope of the patent application The light-emitting element concentrates its light source toward the optical base; An identification element is provided on a position of the circuit board facing one side of the bottom surface of the housing and facing the opening, so that The distance and direction that the trackball is projected onto a part of the surface of the light source, the identification element can detect the distance that the trackball is projected onto the part of the surface of the light source by 1 distance and Direction to calculate a displacement data, and the displacement number of the host; ten or at least one third positioning element, which are located at positions on the circuit board opposite to the second positioning elements, The combination of the third positioning element and each of the first bit elements enables the base body and the light-transmitting plate to not be mounted on the circuit board. The optical trackball structure described by Han recognizes its position components so that the circuit board can be mounted on the housing. The optical trackball structure described above, and the optical trackball structure described above, are mated at one end of the academic seat adjacent to one end edge of the slot, so that the optical trackball structure of the optical description has two card slots at its sides. The engaging part: the other part is provided with the engaging part and the two card slots for mutual engagement 2. As described in item 1 of the scope of patent application, the circuit board is provided with at least one fourth fixed pivot through each of the fourth positioning elements. In 3, if the surface of the track ball in the scope of the patent application is subject to a matte surface treatment, 4, if the scope of the patent application in the scope of the first side of the transparent plate opposite to the base, a stop The stopper and the light base can not be easily shaken. 5. As for the light-transmitting plate in Item 1 of the scope of the patent application, it is adjacent to the slotted two: one side of one side of the optical base, another engaging portion, the engaging portion and the other ten. M258357 V. The scope of patent application is set on the transparent plate. Then, the optical base can be fixed. 6. The optical trackball structure described in item 1 of Shenjing's patent scope 'wherein the optical base is provided with a lens on one side facing the identification element' so that the lens It can be just facing the slot, and one end of the lens adjacent to the slot is provided with a reflecting portion. The optical base is provided with a light guide lens at the end of the reflecting portion facing the lens. 7. The optical trackball structure described in item 1 of the scope of patent application, wherein the input device may be a keyboard. 8. The optical trackball structure described in item 1 of the scope of patent application, wherein the input device can be a numeric keyboard. 9 The optical trackball structure described in item 1 of the scope of patent application, wherein the input t can be a joystick. 10. The optical trackball structure described in item 3 of the scope of patent application, wherein the surface of the trackball is processed in a gradient manner. Buy 16