CN2906729Y

CN2906729Y - Laser track ball device of wireless keyboard

Info

Publication number: CN2906729Y
Application number: CNU200620008213XU
Authority: CN
Inventors: 刘永隆; 余元懿
Original assignee: Sunrex Technology Corp
Current assignee: Sunrex Technology Corp
Priority date: 2006-03-15
Filing date: 2006-03-15
Publication date: 2007-05-30
Anticipated expiration: 2016-03-15

Abstract

The utility model discloses a wireless keyboard laser trackball device which comprises a base, a laser source generator, a trackball, an optics sensing element and a keyboard cover; wherein, a laser optics module is arranged in the base, a trackball is arranged correspondingly in the bearing hole on the ceiling of the base, the optics sensing element is arranged in the comprising space of the base, the optics sensing element in unit time senses the laser interference fringe patterns presented by the reflection of the bottom surface of the trackball and further senses and calculates the moving direction and distance of the trackball and synchronously controls the cursor position on a computer screen. The utility model has the advantages of ingenious and volume-reducing structure, efficiency of high analyzing degree by the accurate signal-sensing, and controlling accurately the cursor position on the computer screen.

Description

The laser trace ball device of Wireless Keyboard

Technical field

The utility model relates to a kind of laser trace ball device of Wireless Keyboard, refers in particular to a kind of keyboard Trackball device that utilizes the laser optics module, reaches trace ball volume that dwindles on the keyboard and the usefulness that improves its sensing signal resolution.

Background technology

Tradition desktop or notebook computer are to be shifted with the cursor of controlling on the computer screen by slide-mouse or Trackball device, and known mechanical type slide-mouse is the grating wheel that is equiped with two correspondences in housing, and it utilizes a trace ball to rotate with this two grating wheel of interlock, and then be projected to light variable signal on the optical sensor to calculate via grating wheel by a decoding circuit, can sense the mobile orientation of trace ball, and and then the cursor position on the feasible energy synchro control computer screen, yet the mechanism design of this known mechanical type slide-mouse is too complicated and control out of true, moreover the volume of its whole mechanism is excessive and do not meet light and practical usefulness;

Then, relevant known optical mice is to utilize a light source with irradiation on the table, and pass through an optical sensor to capture identification by the catoptrical signal variation of desktop, and then calculating produces corresponding cursor movable signal, though but this known optical slide-mouse its need not utilize a trace ball on desktop, to roll, when yet this optical mice slides on the table, then still can make dust and foreign material invade enclosure interior, and then cause transmitting illuminant and receive the drawback that the light source induction is bad and damage via the opening of slide-mouse bottom.

In view of this, the design people is engaged in the manufacturing and the design practical experience of computor-keyboard and slide-mouse for many years with it, and active research is improved, eventually to finishing the utility model.

The utility model content

The technical problems to be solved in the utility model is: the laser trace ball device that a kind of Wireless Keyboard is provided, it is light and handy and LASER Light Source has single-frequency, consumed power is little and the power saving effect that it has a volume by laser diode, reaches the trace ball volume that dwindles on the keyboard and improve the usefulness of its laser sensing signal resolution.

Technical solution of the present utility model is: a kind of laser trace ball device of Wireless Keyboard, comprise: a pedestal, be assembled with a laser optics module in its pedestal, be assembled with a LASER Light Source generator in the side plate pilot hole of this pedestal, the top board of this pedestal is equipped with a bearing hole, with corresponding bearing one trace ball, be assembled with an optics sensing element in the accommodation space of this pedestal; One LASER Light Source generator, its laser radiation presents interference fringe pattern in a trace ball basal surface and reflection; One trace ball, rolling is arranged in the bearing hole of this pedestal top board, and the bottom edge of this trace ball protrudes from this bearing hole downwards; One optics sensing element, it captures sensing and is reflected the laser interferencefringes figure that presents by this trace ball basal surface in the unit interval, and and then sensing calculate the moving direction and the distance of this trace ball, and the cursor position on can the synchro control computer screen; One key lid, its be one fully cover cover the cap body that is installed in this pedestal periphery, this key hd top face is equipped with a circular hole, the top surface of this trace ball is corresponding protruding upward in this circular hole, is beneficial to finger and stirs adjustment.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein the base plate of this pedestal fastens the trip position that is positioned on the keyboard substrate.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein this bearing hole peripheral is the round concave arc curved surface of aperture convergent.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein this LASER Light Source generator belongs to laser diode, and with the semiconductor laser light resource that produces, its laser belongs to the monochromatic source of single-frequency.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein this trace ball is the small size spheroid that a diameter approaches 5mm.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein the corresponding buckle of buckling groove of this key lid side plate bottom is in the snap hook of this base side boards bottom, and this key lid and this pedestal are assembled into integrative-structure.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein this pedestal, trace ball, laser optics module and key lid are assembled on the keyboard substrate of a mobile phone.

The laser trace ball device of Wireless Keyboard as mentioned above, wherein this trace ball is the small size spheroid of a diameter less than 5mm.

Laser trace ball device of the present utility model has overcome the defective of prior art, has the structure of exquisiteness and reduced volume, and it is by the high-res usefulness of the accurate sensing signal of laser optics module, the cursor position on energy and then the accurate manipulation keyboard screen.

Description of drawings

Fig. 1 is a package assembly synoptic diagram of the present utility model.

Fig. 2 is a three-dimensional decomposition texture synoptic diagram of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is the package assembly synoptic diagram of another embodiment of the utility model.

The main element symbol description:

10: keyboard 11: substrate

12: trip 20: pedestal

21: base plate 22: side plate

221: pilot hole 23: the LASER Light Source generator

24: accommodation space 25: top board

251: bearing hole 252: circle concave arc curved surface

26: trace ball 27: the optics sensing element

28: circuit board 29: snap hook

30: key lid 36: circular hole

39: buckling groove 40: mobile phone

Embodiment

At first see also as shown in Figure 1 to Figure 3, the utility model is a kind of laser trace ball device of Wireless Keyboard, wherein this laser trace ball device is assembled on the substrate 11 of a keyboard 10, and it comprises: a pedestal 20, a LASER Light Source generator 23, a trace ball 26, an optics sensing element 27 and key lid 30; Wherein:

Be assembled with laser optics emission and sensing module in this pedestal 20, and the base plate 21 of this pedestal 20 fastens the trip 12 that is positioned on the keyboard substrate 11, side plate 22 in this pedestal 20 is equipped with a pilot hole 221, can correspondingly assemble a LASER Light Source generator 23, and be equipped with a bearing hole 251 in the top board 25 of this pedestal 20, and these bearing hole 251 peripheries generally are the round concave arc curved surface 252 of aperture convergent, with accurate corresponding bearing one trace ball 26,

top board

25 and 21 of base plates in this pedestal 20 have an accommodation space 24, and are assembled with an optics sensing element 27 in this accommodation space 24;

This LASER Light Source generator 23 belongs to a laser diode (Laser Diode), to produce semiconductor laser light resource, its laser diode has that volume is light and handy, consumed power is little and the power saving effect, and laser belongs to the monochromatic source of the high benefit of single-frequency, and its reflected the interference fringe pattern that presents by laser radiation in a trace ball 26 can be via a sensing element and signal evaluation circuit to accurately calculate the mobile orientation of a trace ball 26;

This trace ball 26 is a spheroid that rolls in the bearing hole 251 be arranged in this pedestal 20, and the bottom edge of this trace ball 26 protrudes from this bearing hole 251 downwards, so that the laser that this LASER Light Source generator 23 is produced is able to the basal surface of direct irradiation in this trace ball 26, and then can produce the laser light reflected bundle, and this trace ball 26 can be the small size spheroid that a diameter approaches 5mm;

This optics sensing element 27 is assembled on the circuit board 28, and this optics sensing element is set the accommodation space 24 that is positioned at this pedestal 20 for 27 groups, this optics sensing element 27 then be in the unit interval acquisition or sensing by this trace ball 26 basal surfaces institute laser light reflected interference fringe pattern, and and then by moving direction and the distance of a signal evaluation circuit to accurately calculate this trace ball 26, and make cursor position on can the synchro control computer screen;

This key lid 30 be one fully cover cover the cap body that is installed in these pedestal 20 peripheries, cover 30 end faces in this key and be equipped with a circular hole 36, make that the top surface of this trace ball 26 can be corresponding protruding upward in this circular hole 36, thereby the user can be by finger to stir this trace ball 26 and the synchronous cursor position of adjusting on the computer screen, in addition, this key covers 39 corresponding buckles of buckling groove of 30 side plate bottoms in the snap hook 29 of these pedestal 20 side plate bottoms, so that this key lid 30 and this pedestal 20 are assembled into the laser trace ball device of an exquisiteness;

See also again as shown in Figure 4, the laser trace ball device of the utility model exquisiteness also can be assembled on the keyboard substrate of a mobile phone 40, promptly the key of this on mobile phone lid 30 and the exquisite reduced volume of trace ball 26 energy are to appropriate size, and the trace ball 26 on mobile phone 40 can be the small size spheroid that a diameter is slightly less than 5mm, and it can reach the cursor position of accurately controlling on the cell phone keyboard screen by the high-res usefulness of the sensing signal of exquisite laser optics module;

From the above, use the utility model and then have following advantage, the laser trace ball device that is the utility model Wireless Keyboard utilizes exquisite semiconductor laser optical module, it can not only sense this trace ball 26 rolling surfaces institute laser light reflected interferometric fringe signal with accurate acquisition by this optics sensing element 27, to reach the high-res usefulness of sensing signal, and it is light and handy that the laser diode that the utility model is used then has a volume, little and the power saving effect of consumed power, moreover, laser trace ball device of the present utility model is that one is assembled in this key lid 30 and the pedestal 20, simplifies with the package assembly that reaches single unit system, install easily and control and use usefulness accurately.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. the laser trace ball device of a Wireless Keyboard is characterized in that, comprising:

One pedestal, be assembled with a laser optics module in its pedestal, be assembled with a LASER Light Source generator in the side plate pilot hole of this pedestal, the top board of this pedestal is equipped with a bearing hole, with corresponding bearing one trace ball, be assembled with an optics sensing element in the accommodation space of this pedestal;

One LASER Light Source generator, its laser radiation presents interference fringe pattern in a trace ball basal surface and reflection;

One trace ball, rolling is arranged in the bearing hole of this pedestal top board, and the bottom edge of this trace ball protrudes from this bearing hole downwards;

One optics sensing element, it captures sensing and is reflected the laser interferencefringes figure that presents by this trace ball basal surface in the unit interval, and and then sensing calculate the moving direction and the distance of this trace ball, and the cursor position on can the synchro control computer screen;

One key lid, its be one fully cover cover the cap body that is installed in this pedestal periphery, this key hd top face is equipped with a circular hole, the top surface of this trace ball is corresponding protruding upward in this circular hole.

2. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that the base plate of this pedestal fastens the trip position that is positioned on the keyboard substrate.

3. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that this bearing hole peripheral is the round concave arc curved surface of aperture convergent.

4. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that this LASER Light Source generator belongs to the laser diode that produces semiconductor laser light resource, and its laser belongs to the monochromatic source of single-frequency.

5. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that this trace ball is the small size spheroid that a diameter approaches 5mm.

6. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that, the corresponding buckle of buckling groove of this key lid side plate bottom is in the snap hook of this base side boards bottom, and this key lid and this pedestal are assembled into integrative-structure.

7. the laser trace ball device of Wireless Keyboard according to claim 1 is characterized in that, this pedestal, trace ball, laser optics module and key lid are assembled on the keyboard substrate of a mobile phone.

8. as the laser trace ball device of Wireless Keyboard as described in the claim 7, it is characterized in that this trace ball is the small size spheroid of a diameter less than 5mm.