CN1202466C

CN1202466C - Photoelectric mouse

Info

Publication number: CN1202466C
Application number: CNB031266495A
Authority: CN
Inventors: 林树海
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-19
Filing date: 2003-05-19
Publication date: 2005-05-18
Anticipated expiration: 2023-05-19
Also published as: CN1474261A

Abstract

The present invention provides a photoelectric mouse which relates to a photoelectric mouse used for a computer. The present invention comprises a casing body 1, a lighting light source 3 which is arranged in the casing body 1 and a light reception and processing device 2 which is provided with a light sensor 21 and a light lens 22, wherein the casing body 1 is provided with a sensitive window 11 at the corresponding position of the light lens 22, the light rays of the lighting light source 3 can project or reflect to the sensitive window 11, and the sensitive window 11 is provided with an eyeglass 4 which is used for covering the sensitive window 11. As long as a finger touches and slides on the eyeglass on the sensitive window of the photoelectric mouse, a cursor can be conveniently and flexibly driven to move. Thereby, the present invention can be arranged on electronic devices, such as personal computers (PC), notebook computers, personal digital assistants (PDA), tablet PCs, etc. The present invention can be used for replacing traditional mice or trackballs or touch panels, track points, etc. to reduce the occupation space thereof.

Description

Optical mouse

Technical field the present invention relates to the computing machine optical mouse.

Background technology is since operating system enters graphical interface, because need be for institute on the display

The cursor (cursor) that shows is controlled, so mouse is to become except keyboard one of most important peripheral input media.

Optical mouse (optical mouse) often is to utilize COM, PS/2 or USB interface to interconnect with intercomputer, and shown cursor can move with the track that optical mouse moved on the display.

The structure of existing optical mouse comprises that housing, light emitting diode, optical lens, light accepts treating apparatus, button and printed circuit board (PCB).Light emitting diode is arranged in the housing, and launches light towards an opening of housing bottom.So after on this optical mouse is placed on as desktop or mouse pad, irradiate light promptly can produce reflection ray on mouse pad, and presents the image on the mouse pad thus.Optical lens is to be used for assembling that the autoluminescence diode is launched and by the reflection ray that reflects on the mouse pad.

Light is accepted treating apparatus and is received reflection ray after being assembled by optical lens, and light is accepted treating apparatus and had an optical sensor and a graphics processing unit.Light sensing unit is made of Charged Coupled Device (CCD), therefore can capture via the image after the optical lens gathering, typical light is accepted the optical mouse dedicated optical such as HDNS-2000, HDNS-2051 that the treating apparatus chip is a U.S. AGILENT company and is accepted the treating apparatus chip, and such light accepts the treating apparatus chip such as HDNS-2000 cake core per second can pick up 1500 frame images from the sensitization window.Then, compared its difference place for optical sensor at the image that different time absorbed by graphics processing unit, judge displacement that mouse moves, speed etc. thus, and be sent to moving with the control cursor on the computing machine after being converted into the electric signal of the corresponding coordinate of computing machine (Δ X, Δ Y).

Then to be that part is protruding be exposed to outside the housing button, and when being pushed by the user, button promptly can interlock one microswitch, clicks (click) action with the control cursor.Printed circuit board (PCB) is to be used for carrying above-mentioned member and above-mentioned member is electrically connected to each other mutually.

Learn a skill and carry out the judgement of shift position because optical mouse is daylighting, therefore have be difficult for being infected with dust, resolution height, move sliding along etc. advantage, so replace the idler wheel mouse of traditional type gradually.Yet, because optical mouse is to adopt active moving, in other words, the certain space of user's needs grips optical mouse and moves along a plane, could control cursor effectively and move, and suitable space therefore must account for, be not very convenient in the use, the person of being even more important, the long-time operation rolling mouse not only easily makes the muscular fatigue at wrist position, and severe patient more may cause athletic injury because of long-term accumulated.

Summary of the invention the objective of the invention is to avoid above-mentioned weak point that a kind of mouse moving distance optical mouse that less or available finger touch drives is provided.

Purpose of the present invention can realize like this, design a kind of optical mouse, comprise housing, place the illuminating source in the housing and have the light-receiving treating apparatus of optical sensor, optical lens, housing is provided with photosensitive window in the corresponding position of optical lens, the light of illuminating source can throw or reflex to photosensitive window, at described photosensitive window one convex lens are installed, these convex lens cover described photosensitive window.

The present invention transforms the light conduction pathway and the control circuit of prior art, and optical mouse need not be moved, and only needs finger to touch on the eyeglass on the optical mouse sensitization window and slides, and just can drive cursor easily and flexibly and move.Therefore, also the present invention can be installed on personal computer (PC), notebook computer, PDA(Personal Digital Assistant), the flat computer electronic installations such as (Tablet PC), can replace traditional mouse, trace ball or contact panel (touch panel), Track Point (track point) etc. to dwindle its occupation space.

Description of drawings

Fig. 1 is the synoptic diagram of one of preferred embodiment of the present invention.

Fig. 2 is two a synoptic diagram of preferred embodiment of the present invention.

Fig. 3 is three a synoptic diagram of preferred embodiment of the present invention.

Fig. 4 is three a profile synoptic diagram of preferred embodiment of the present invention.

Fig. 5 is one of eyeglass that the embodiment of the invention adopts.

Fig. 6 is two of an eyeglass that the embodiment of the invention adopts.

Fig. 7 is three of an eyeglass that the embodiment of the invention adopts.

Fig. 8 is four of an eyeglass that the embodiment of the invention adopts.

Fig. 9 is that two of preferred embodiment of the present invention is applied in the synoptic diagram on the notebook computer.

Figure 10 is the synoptic diagram of light sensation processor, interface processor and the computing machine relation of preferred embodiment of the present invention.

Figure 11 is the circuit diagram of preferred embodiment of the present invention.

The invention will be further described below in conjunction with embodiment for embodiment.

As shown in Figure 1, a kind of optical mouse comprises housing 1, place the illuminating source 3 in the housing 1 and have the light-receiving treating apparatus 2 of optical sensor 21, optical lens 22, housing 1 is provided with photosensitive window 11 in the corresponding position of optical lens 22, the light of illuminating source 3 can throw or reflex to photosensitive window 11, at described photosensitive window 11 convex lens 4 are installed, these convex lens 4 cover described photosensitive window 11.

The convex surface of described convex lens 4 is towards the outside of housing 3.

Housing 1 is made of exhausted shell material, and offers an opening 11 at a upper surface place of housing 1.Convex lens 4 are to be embedded at the peripheral region of housing 1 along opening 11, therefore opening 11 can be closed, convex lens 4 also have a protruding minute surface 41 that is exposed to outside the housing 1, and the minute surface 42 in contrast to minute surface 41, in the present embodiment, convex lens 4 are by transparent glass, plastics, or resin is made, and be meant a plano-convex lens especially, therefore minute surface 42 is a plane, 41 of minute surfaces are one to have the convex surface of certain curvature, and the effect that the imaging of observing lens 4 toward minute surface 41 directions by minute surface 42 has amplification produces.Minute surface 41 be for the user to point 50 in addition back and forth after the touching, cursor promptly can move according to moving of finger 50.

Light source 3 is to be arranged in the housing 1, and is to be used for launching light to opening 11 and convex lens 4, and in the present embodiment, light source 3 is meant a light emitting diode (LED), and the optical wavelength that it sent is 639nm.Therefore if when user's finger 50 is contacted with the minute surface 41 of convex lens 4, the light that light source 3 sent can pass through minute surface 42, minute surface 41 in regular turn through repeatedly reflecting, arrive on finger 50 and the minute surface 41 contacted surface of contact at last, because surface of contact has stopped that light moves on, so can produce the reflection ray of reflection from surface of contact, this reflection ray also can pass minute surface 41, minute surface 42 retroeflection in regular turn to housing 1 inside.Light source can be provided with color, selects for the user.

Optical lens 22 is arranged in the housing 1, can be assembled for coming from the reflection ray that passes convex lens 4, and this optical lens 22 for example can adopt that Agilent company produces, model is the lens of HDNS-2100.Light is accepted treating apparatus 2 and is arranged in the housing 1, in the present embodiment, light is accepted treating apparatus 2 and promptly is meant a smooth sensing chip, can adopt the light sensing chip that for example Agilent company produces, model is ADNS-2501, its below has the optical sensor 21 of a camera lens towards

optical lens

22,21 of this optical sensors are made up of Charged Coupled Device (CCD) or CMOS field-effect transistor (CMOS) array, and one can be taken 1500 two field pictures second.In addition, this light is accepted treating apparatus 2 and is had more a graphics processing unit (DSP), can be calculated for the image that optical sensor 21 is shot with video-corder at different time, compared, therefore can calculate the otherness between image and image, and be converted into the electric signal of the displacement that includes X coordinate and Y coordinate, go up moving of control cursor to be passed to electronic installation (computing machine).

Above-mentioned light is accepted treating apparatus 2, light source 3 and is together to be welded on the printed circuit board (PCB) 7, is convenient to assembling.

One button 7 is set on described housing at least, uses for user's operation to carry out the action that clicks of this cursor.

Therefore, when the user utilizes finger 50 to move around on lens 4, because reflection ray shines in the user and points on the surface of contact of 50 and first minute surface 41, so accepting treating apparatus 2, light just can judge finger 50 distances that move by the image that reflection ray carried, and then control cursor and move, so do not need additional space to come mobile the present invention.

The enlargement factor of described convex lens 4 is 1.5～15 times.The employing of convex lens 4 enlargement factor numerical value is needed to decide by user's use.The user is as adopting the optical mouse of high-amplification-factor convex lens when playing games, cursor moves more flexible.The mobile flexibility ratio of cursor by convex lens enlargement factor and computer processing speed determined.Convex lens 4 can be to be made by transparent materials such as glass, plastics or resins.The enlargement factor that adopts in the present embodiment is 2.5 times.Fig. 5, Fig. 7, Fig. 8 are convex lens 4 adoptable shapes.

As shown in Figure 6, when eyeglass 4 was planar optics, the flexibility ratio that cursor moves was decided on the processing speed of processor.

The thickness of described convex lens 4 is in 3mm.

Because general light is accepted 2 images that can shoot with video-corder for the treatment of apparatus, its best focal length has certain apart from d, as shown in Figure 2.Distance between described convex lens 4 and the optical sensor be the focal length of convex lens 4 make convex lens 4 with the reflection light-ray condensing on optical lens 22.Described convex lens 4 outside surfaces and described optical sensor are at a distance of between 7.3mm～7.6mm.In the present embodiment, this is 7.45mm apart from d, so the fundamental purpose of lens 4 is to be to keep the constant of optical channel, just because the user must be to point 50 along minute surface 41 slippages, and it is certain that minute surface 41 to light is accepted keeping apart from d for the treatment of apparatus 2, so reflection ray certain distance of must passing through, guarantee that light accepts the focal length that treating apparatus 2 is found a view; Particularly, because minute surface 41 is a convex surface, therefore amplified the image of surface of contact, making light accept the displacement that treating apparatus 2 detected can be exaggerated, and it is comparatively flexible that cursor is moved.The thickness of these lens 4 in 2mm, and when its enlargement ratio can be between 1.5～15 times, its best results, but be not only to be confined to above-mentioned thickness and enlargement ratio, the flexibility ratio height that sets when looking closely its design and deciding.Different types of lens, amplification or reduction magnification difference according to its imaging though can cause operating the difference of flexibility ratio, all can reach identical purpose of the present invention.

As shown in Figure 2, described light is accepted treating apparatus 2 and is inverted, and the photosensitive window 11 that has convex lens 4 is arranged on the panel at button 7 places.Make things convenient for finger touch to slide, in the light reflection windows convex lens have been installed, its effect at first is guarantee the light transmission distance constant, when having only the finger touch magnifier, optical sensor just sends instruction driving cursor and moves, in addition, convex lens will be pointed the distance of sliding and suitably amplify, and make the mobile very convenient sensitivity of cursor.

As shown in Figure 9, the present invention can be applied on the notebook computer, replaces being installed in the special-purpose mouse of notebook computer.The present invention is arranged on keyboard the place ahead, and collocation has two buttons 7 to click action for the user, also just replaced traditional contact panel, Track Point (track point), or cursor control device such as trace ball with convex lens 4, can save take up space and cost.This moment, housing 1 was the housing of notebook computer.In like manner, can also be arranged on personal digital assistant for example, flat computer or other need carry out on the portable electronic devices of cursor control.

As shown in Figure 3, described light is accepted treating apparatus 2 sides, and the photosensitive window 11 that has convex lens 4 is arranged on the side panel of Genius mouse.Have the use habit of the photosensitive window 11 of convex lens 4, can be arranged on the Left-Hand Panel of Genius mouse, also can be arranged on the right panel of Genius mouse according to the user.As shown in Figure 5, the photosensitive window 11 that has convex lens 4 is arranged on the Left-Hand Panel of Genius mouse, the operator uses hand thumb to touch the trend that moves with the control cursor very naturally on convex lens 4 during use, waits pressing keys 7 to click action with forefinger, middle finger.

The output contact of mouse Y direction control circuit should make the mouse Y direction consistent with the movement of objects direction that moves at the photosensitive window place.The present invention adopts the optical technology identical with existing optical mouse, but become passive type and move by active move, change speech, viewpoint with existing optical mouse, controlling party of the present invention to be equal to optical mouse with the bottom surface towards on control, so when finger 50 when lens 4 move right, also being equal to bottom surface optical mouse up moves to its right (left of finger to), in other words, its X coordinate has been gone through twice 180 degree conversions, so XA, XB output also need not change.But the Y coordinate is then spent change owing to only go through one time 180, so the controlling party of Y-axis of the present invention is to just opposite with existing optical mouse, so need the Y direction control circuit is transformed.

Contact intersection butt joint with existing mouse Y direction control circuit.Be inverted or side because described light is accepted treating apparatus 2, mouse moving relatively moves by initiatively moving to become, and 180 ° of variations take place its Y direction, if correct at the light conduction pathway, then make the light conduction pathway become very complicated.The present invention transforms the control circuit of prior art, makes Y-axis turn to 180 ° again, and need not increase device is rectifiable Y direction.Also becoming relatively moves, and 180 ° of variations take place the direction of X-axis because mouse moving is by initiatively moving, but because the sensitization window of optical sensor becomes window downwards upwards by window, 180 ° of variations take place equally, therefore need not do any change.If when adopting serial interface connected mode, also can extract the Y-axis data, and change its direction with reference to this method.

In the existing optical mouse, except light is accepted treating apparatus 2, also can exist an interface processor 6, for example model is the USB interface control chip of CYPRESS CY7C63723A-PC.Accept in numerous pins for the treatment of apparatus 2 at light, XA, XB, YA, YB pin with four carry-out bit shifting signals, wherein XA, XB are the amount of movements that is used for exporting the X coordinate, YA, YB are the amount of movements that is used for exporting the Y coordinate, and 6 of interface processors have four pin P1～P4 corresponding with XA, XB, YA, YB respectively.As shown in figure 10, accept at light under the situation for the treatment of apparatus 2 inversions or side, Y-axis data output YA, the YB of described smooth sensing chip 5 docks with 3,4 pin of usb processor chip 6 respectively.The Y-axis data output YA that is located at light sensing process chip 5 in the typical photoelectricity mouse control circuit in the mouse is connected with 4 pin of usb processor chip 6, and Y-axis data output YB is connected with 3 pin of usb processor chip 6.The model of light sensing process chip 5 is ADNS-2051 in the present embodiment, and the model of usb processor chip 6 is CY7C62001A.

Above-mentioned interface processor 6 can also be one to have the processor controls of radio transmission-receiving function, for example can utilize 802.11a, 802.11b or blue bud home control network communication protocols such as (bluetooth) carries out wireless transmission with electronic installation 60.In other words, no matter the present invention is connected the present invention with wired (utilizing USB interface, PS/2 interface, com interface etc.) or wireless mode with electronic installation 60, the user all can be held in the present invention in the hand, only to point 50 contact slips on lens 4, promptly can carry out corresponding control to cursor, for optical mouse in the past, do not need one naturally and be used for for its plane of moving.Can make computer operater's operation of need not bending over the desk, operating computer is just like equally convenient with telepilot operation televisor, and being used in computer, to give lectures on class will be very handy also.Because mouse can move, therefore this mouse is suitable for notebook computer and hand-held remote control mouse especially.

The present invention utilizes convex lens 4 to keep the constant of optical channel, make the user point 50 and the image of the surface of contact of 4 on convex lens can be accepted 2 for the treatment of apparatus by light and catch really, therefore do not need mobile the present invention, and only need the user to touch convex lens 4 back and forth and just can carry out the control that cursor moves to point 50, therefore do not need extra plane space to come for its slip, more can obviously reduce tired discomfort even athletic injury that user's long period of operation rolling mouse produces, more preferably, only need utilize the existing member of optical mouse just can be realized, and can be installed on the various electronic installations.

Claims

1, a kind of optical mouse, comprise housing (1), place the illuminating source (3) in the housing (1) and have the light-receiving treating apparatus (2) of optical sensor (21), optical lens (22), housing (1) is provided with photosensitive window (11) in the corresponding position of optical lens (22), the light of illuminating source (3) can throw or reflex to photosensitive window (11), it is characterized in that: at described photosensitive window (11) convex lens (4) are installed, these convex lens (4) cover described photosensitive window (11).

2, optical mouse according to claim 1 is characterized in that: the convex surface of described convex lens (4) is towards the outside of housing (3).

3, optical mouse according to claim 1 and 2 is characterized in that: the enlargement factor of described convex lens (4) is 1.5～15 times.

4, optical mouse according to claim 3 is characterized in that: the distance between described convex lens (4) and the optical sensor (21) be the focal length of convex lens (4) make convex lens (4) with the reflection light-ray condensing on optical lens (22).

5, optical mouse according to claim 4 is characterized in that: described convex lens (4) outside surface and described optical controller are at a distance of between 7.3mm～7.6mm.

6, optical mouse according to claim 4 is characterized in that: the thickness of described convex lens (4) is in 3mm.

7, optical mouse according to claim 4 is characterized in that: described optical pickup apparatus (2) is inverted, and the photosensitive window (11) that has convex lens (4) is arranged on the panel at button (7) place.

8, optical mouse according to claim 4 is characterized in that: described optical pickup apparatus (2) side, the photosensitive window (11) that has convex lens (4) is arranged on the side panel of Genius mouse.

9, optical mouse according to claim 1 is characterized in that: the output contact of mouse Y direction control circuit should make the mouse Y direction consistent with the movement of objects direction that moves at the photosensitive window place.

10, optical mouse according to claim 7 is characterized in that: Y-axis data output YA, the YB of described smooth sensing chip (5) docks with 3,4 pin of usb processor chip (6) respectively.

11, optical mouse according to claim 8 is characterized in that: Y-axis data output YA, the YB of described smooth sensing chip (5) docks with 3,4 pin of usb processor chip (6) respectively.