CN218240869U - Mouse optical system and mouse - Google Patents
Mouse optical system and mouse Download PDFInfo
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- CN218240869U CN218240869U CN202222611571.1U CN202222611571U CN218240869U CN 218240869 U CN218240869 U CN 218240869U CN 202222611571 U CN202222611571 U CN 202222611571U CN 218240869 U CN218240869 U CN 218240869U
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Abstract
The utility model provides a mouse optical system and mouse, wherein, this mouse optical system includes: a light source, a superlens, and an optical sensor; the light source is used for emitting detection light to the desktop; the super lens is used for receiving the reflected light reflected by the tabletop and focusing the reflected light into the optical sensor; the optical sensor is used for converting the incident reflected light into an electrical signal from an optical signal. Through the embodiment of the utility model provides a mouse optical system and mouse adopts the volume frivolous, and simple structure and the lower super lens of cost are as receiving lens for the whole volume of mouse optical system who contains super lens is less, and the processing cost is lower.
Description
Technical Field
The utility model relates to an optical mouse technical field particularly, relates to a mouse optical system and mouse.
Background
The photoelectric mouse utilizes a light beam emitted by a light source arranged in the photoelectric mouse to irradiate on a desktop, and a receiving lens also arranged in the photoelectric mouse captures light diffusely reflected by the desktop and emits the light into an optical sensor, and the optical sensor differentiates the light intensity through the obtained diffuse reflection light intensity of the desktop to obtain the moving direction and the distance of the mouse.
The receiving lens arranged inside the traditional optical mouse is a traditional lens, so that the internal system space of the optical mouse is larger, and the volume of the optical mouse is larger.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, an embodiment of the present invention provides a mouse optical system and a mouse.
In a first aspect, an embodiment of the present invention provides an optical system for a mouse, including: a light source, a superlens, and an optical sensor; the light source is used for emitting detection light to the desktop; the super lens is used for receiving the reflected light reflected by the tabletop and focusing the reflected light into the optical sensor; the optical sensor is used for converting the incident reflected light into an electric signal from an optical signal.
Optionally, the superlens is a compound superlens; the light source, the compound super lens and the optical sensor are coaxially arranged, the compound super lens is positioned on the light emitting side of the light source, and the optical sensor is positioned on one side of the light source, which is far away from the compound super lens; the compound superlens includes: a central superlens and an edge superlens arranged in a coplanar manner; the edge super lens is arranged around the central super lens and is connected with the central super lens; the central super lens is arranged opposite to the light source and used for projecting the detection light on the desktop positioned on the light outlet side of the central super lens; the edge super lens is used for focusing and injecting the reflected light reflected by the tabletop into the optical sensor.
Optionally, a central superlens is used to collimate or converge the probe light.
Optionally, in a case where the central superlens is used to collimate the probe light, a distance between the light source and the central superlens is smaller than a focal length of the central superlens.
Optionally, the relation between the central superlens and the light source is satisfied:
wherein, f 1 Representing the focal length of the central superlens; h represents the radius of the central superlens; d represents the distance between the light source and the central superlens; m represents a half width of the light source; and h is greater than m.
Optionally, in a case where the central superlens is used to converge the probe light, a distance between the light source and the central superlens is greater than twice a focal length of the central superlens.
Optionally, the focal length of the central superlens satisfies the relation:
wherein f is 1 Represents a focal length of the central superlens; d represents the distance between the light source and the central superlens; l represents the distance between the compound superlens and the tabletop; h represents the radius of the central superlens; m represents a half width of the light source; and h > m.
Optionally, a central superlens is used to focus the probe light.
Optionally, the central superlens, the light source and the tabletop satisfy a relation:
wherein f is 1 Representing the central superThe focal length of the lens; d represents the distance between the light source and the central superlens; l represents the distance between the compound superlens and the tabletop.
Optionally, the relationship between the edge superlens and the optical sensor and between the edge superlens and the tabletop is satisfied:
wherein f is 2 Representing a focal length of the edge superlens; l represents the distance between the compound superlens and the tabletop; l' represents the distance between the compound superlens and the optical sensor.
Optionally, a distance between the compound superlens and the optical sensor is greater than a distance between the compound superlens and the tabletop.
Optionally, a distance between the compound superlens and the optical sensor is less than twice a distance between the compound superlens and the tabletop.
Optionally, the light source comprises a light emitting diode.
Optionally, the optical sensor comprises: a photodiode, a photoresistor, or a phototriode.
In a second aspect, the embodiment of the present invention further provides a mouse, including: any one of the above mouse optical system, signal processing system, transmission line and housing; the mouse optical system is used for acquiring an electric signal of reflected light reflected by the desktop and sending the electric signal to the signal processing system through the transmission line; the signal processing system processes the received electric signals to obtain the displacement and the direction of the mouse and transmits the displacement and the direction of the mouse to a computer; the housing is used for accommodating the mouse optical system, the signal processing system and the transmission line.
Optionally, the mouse further comprises: the feedback line is respectively connected with the signal processing system and the mouse optical system; the feedback line is used for enabling the light source in the mouse optical system to reduce the light intensity of the emitted detection light under the condition that the signal processing system identifies that the electric signal is not changed.
The embodiment of the utility model provides an in the above-mentioned scheme that the first aspect provided, adopt the volume frivolous, simple structure and the lower super lens of cost are as receiving lens for the whole volume of mouse optical system that contains super lens is less, and the processing cost is lower.
In the embodiment of the present invention, since the optical system of the mouse is provided, enough reflected light can be generated on a smooth desktop, and strong light intensity information can be finally obtained, so that the signal processing system can sufficiently distinguish the moving direction and distance of the mouse, thereby greatly improving the performance of the mouse; in addition, the mouse can be based on a more compact mouse optical system, so that the whole mouse can be further reduced in size and miniaturized.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a side view of an optical system of a mouse according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a super lens in a mouse optical system according to an embodiment of the present invention is a composite super lens;
fig. 3 is a top view of a compound superlens in a mouse optical system according to an embodiment of the present invention;
fig. 4 shows a schematic diagram of a mouse according to an embodiment of the present invention.
An icon:
1-light source, 2-super lens, 3-optical sensor, 21-compound super lens, 211-central super lens, 212-edge super lens, 100-mouse optical system, 200-signal processing system, 300-transmission line, 400-shell and 500-feedback line.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The embodiment of the utility model provides a mouse optical system, it is shown with reference to fig. 1 (fig. 1 shows this mouse optical system's side view, and fig. 1 is the desktop bottom), this mouse optical system includes: a light source 1, a superlens 2 and an optical sensor 3; the light source 1 is used for emitting detection light to the desktop; the superlens 2 is used for receiving the reflected light reflected by the tabletop and focusing the reflected light into the optical sensor 3; the optical sensor 3 is used to convert the incident reflected light from an optical signal into an electrical signal.
Wherein, the light source 1 can emit the detection light from the side to the desktop, for example, the detection light can be a light beam which is obliquely incident to the desktop; alternatively, the light source 1 may emit the probe light vertically toward the tabletop from above the tabletop as shown in fig. 1, and the probe light is emitted toward the tabletop after passing through the superlens 2; optionally, the light source 1 comprises a light emitting diode; such as a red-Emitting Diode (LED) or a blue LED. It should be noted that the desktop in the embodiment of the present invention is a plane on which the mouse can slide, for example, a mouse pad placed on the desktop can also be used as the desktop in the embodiment of the present invention.
In the embodiment of the present invention, the desktop can reflect (e.g. diffuse reflection) the detecting light incident on the desktop surface to obtain the reflected light, at least part of the reflected light can be received by the superlens 2, the superlens 2 can project the reflected light incident thereon to the optical sensor 3, and specifically, the superlens 2 focuses the collected reflected light (the detecting light reflected by the desktop) to be incident on the optical sensor 3; in the case where the optical sensor 3 receives the reflected light of the focused incidence, the optical sensor 3 can convert the reflected light incident therein from an optical signal into an electrical signal, wherein the electrical signal may be light intensity information of the incident reflected light; alternatively, the optical sensor 3 may include: a photodiode, a photoresistor, or a phototriode. It should be noted that, the embodiment of the present invention provides a processing procedure (for example, a procedure of converting an optical signal into an electrical signal) performed by the optical sensor 3 on incident reflected light, which can be processed by using the existing technical means.
The embodiment of the utility model provides a mouse optical system adopts the volume frivolous, and simple structure and the lower super lens 2 of cost are as receiving lens for the whole volume of mouse optical system who contains super lens 2 is less, and the processing cost is lower.
In the conventional optical mouse based on the light emitting diode, the light source, the conventional lens and the optical sensor in the internal optical system are arranged in a distributed manner, for example, the light source is arranged at the side and emits the detection light from the side to the desktop, and the optical sensor is positioned right above the desktop and collects the reflected light; therefore, when the traditional photoelectric mouse is used on a smooth desktop, enough diffuse reflection light cannot be generated, and the light intensity received by the optical sensor is weak; in addition, although the traditional optical mouse based on the laser light source has better performance on a smooth surface, the cost is higher due to the arrangement of a laser inside the optical mouse; therefore, the embodiment of the present invention provides a mouse optical system different from the above-mentioned conventional optical mouse internal system to solve the above-mentioned problems.
Alternatively, as shown in fig. 1, the superlens 2 is a compound superlens 21; the light source 1, the compound superlens 21 and the optical sensor 3 are coaxially arranged (a common main optical axis of the light source 1, the compound superlens 21 and the optical sensor 3 is indicated by a vertical dotted line in fig. 1), the compound superlens 21 is positioned on the light emitting side of the light source 1, and the optical sensor 3 is positioned on one side of the light source 1 away from the compound superlens 21; fig. 1 shows that the lower side of the light source 1 is the light emitting side, and fig. 1 sequentially includes, from top to bottom, an optical sensor 3, the light source 1, a composite superlens 21 (superlens 2), and a desktop.
As shown in fig. 2, fig. 2 shows a side view of the compound superlens 21 of the optical system of the mouse, in which the superlens 2 is a compound superlens (note that, in order to make fig. 2 more concise, the reference numerals of the superlens 2 and the compound superlens 21 are not directly shown in fig. 2); the compound superlens 21 includes: a central superlens 211 and an edge superlens 212 arranged in a coplanar manner; the edge superlens 212 is disposed around the central superlens 211 and connected to the central superlens 211; the central super lens 211 is arranged opposite to the light source 1, and is used for projecting the detection light emitted by the light source 1 on a table top positioned on the light-emitting side of the central super lens 211; the edge superlens 212 is used to focus the reflected light reflected by the table top and into the optical sensor 3.
As shown in fig. 2, the central super lens 211 is located at the center of the edge super lens 212 and surrounded by the edge super lens 212, and the central super lens 211 and the edge super lens 212 are arranged in a plane, for example, the central region of the compound super lens 21 can be used as the central super lens 211, and the region (e.g. the edge region) of the compound super lens 21 except the central region can be used as the edge super lens 212, so as to form the compound super lens 21. For example, referring to FIG. 3, which is a top view of the compound superlens 21, the central superlens 211 may be circular in shape, and correspondingly, the peripheral superlens 212 surrounding it may be circular in shape. As shown in fig. 2, the central superlens 211 is disposed corresponding to the light source 1, and configured to receive the probe light emitted by the light source 1, and project the received probe light onto a desktop on a light exit side of the central superlens 211, so that the probe light can be reflected (e.g., diffused) on the desktop, and form reflected light.
For example, in the embodiment of the present invention, the size (e.g. area) of the central super lens 211 may be larger than the size (e.g. area) of the light spot projected on the surface of the compound super lens 21 by the light source 1; preferably, the size (e.g., area) of the central superlens 211 may be the same as the size (e.g., area) of the light spot projected by the light source 1 on the surface of the compound superlens 21, so that all the detection light emitted by the light source 1 can be received by the central superlens 211 and emitted to the desktop.
In the embodiment of the present invention, in the case that the detection light emitted from the central super lens 211 is reflected by the desktop to generate the reflected light, the reflected light will be received by the edge super lens 212 included in the composite super lens 21, and the edge super lens 212 can converge (e.g. focus) the incident reflected light to the optical sensor 3 disposed on the side (e.g. the upper side of the light source 1 in fig. 2) of the light source 1 away from the composite super lens 21.
The embodiment of the utility model provides a through making light source 1, compound super lens 21, optical sensor 3 coaxial and parallel with the desktop, and utilize the super lens 211 of central authorities in compound super lens 21 to transmit the detecting light that light source 1 exited (be not limited to and scatter, collimation or focus the detecting light and shoot to the desktop), finally utilize edge super lens 212 to collect the reverberation shot to the desktop and shoot to optical detector 3; the optical system of the mouse can project the detection light emitted by the light source 1 from the right top of the desktop, and the detection light is emitted to the right bottom of the light source 1 as much as possible, even if the desktop is smooth, enough reflection light (such as the reflection light generated by the detection light diffused on the desktop) can be generated, and finally more reflection light can be emitted into the optical sensor 3 through the convergence action of the edge super lens 212, so that the optical sensor 3 can receive stronger light intensity; furthermore, the embodiment of the utility model provides a mouse optical system can need not to adopt the higher laser instrument of cost as light source 1, and this mouse optical system cost is lower.
Optionally, a central superlens 211 is used to collimate or converge the probe light; in the embodiment of the present invention, compare super lens 211 in the central authorities with the shot of detecting light divergently ground shot to the desktop, make super lens 211 in the central authorities with the shot of detecting light collimation or convergence ground shot to the desktop be better implementation mode, for example, under super lens 211 in the central authorities with the shot of detecting light collimation or convergence ground shot to the desktop under, can make the shot of shot to the desktop more concentrated, and then make the produced reverberation of desktop that is located super lens 211 in the central authorities light-emitting side (as shown in fig. 2 under super lens 211 in the central authorities), can change and be received by super lens 212 in the edge.
Alternatively, in the case where the central superlens 211 is used to collimate the probe light, the distance between the light source 1 and the central superlens 211 is smaller than the focal length of the central superlens 211.
As shown in FIG. 2, the distance between the light source 1 and the central superlens 211 (or alternatively, the distance between the light source 1 and the compound superlens 21) can be represented by the letter d, and the focal length of the central superlens can be represented by f 1 A representation (not shown in FIG. 2); wherein, d < f 1 In this case, the reverse extension line of the probe light emitted from the light source 1 can be converged on the focal plane (e.g., object focal plane) of the central superlens 211, ensuring that the probe light can be collimated when passing through the central superlens 211.
Optionally, the central superlens 211 is filled between the light source 1 and the central superlens 211The foot relation:
wherein, f 1 Represents the focal length of the central superlens 211; h represents the radius of the central superlens 211 (as shown in FIG. 3); d represents the distance between the light source 1 and the central superlens 211 (or may also be represented as the distance between the light source 1 and the compound superlens 21); m represents the half width of the light source 1 (i.e., half the width, not shown in fig. 2; in this case, the light source 1 is a surface light source); and h is greater than m; further, in the case where the light source 1 is a point light source, that is, in the case where m =0, the relational expression that is satisfied between the central superlens 211 and the light source 1 may be put in order: f. of 1 And (= d). When the central super lens 211 and the light source 1 in the mouse optical system satisfy the above relation, the detection light emitted by the central super lens 211 can be ensured to be collimated, and the collimation effect is better.
Alternatively, in the case where the central superlens 211 is used to condense the probe light, the distance between the light source 1 and the central superlens 211 is greater than twice the focal length of the central superlens 211.
In the embodiment of the present invention, the distance d between the light source 1 and the central super lens 211 (or the distance d between the light source 1 and the compound super lens 21) is greater than the focal length f of the central super lens 1 Twice as much, i.e. at d > 2f 1 In this case, the image formed on the tabletop by the light source 1 finally transmitted through the central superlens 211 may be a reduced real image, and for example, the probe light may be emitted in a condensed form when passing through the central superlens 211.
Alternatively, referring to fig. 2, the focal length of the central superlens 211 satisfies the relationship:
wherein f is 1 Represents the focal length of the central superlens 211; d represents the distance between the light source 1 and the central superlens 211 (or may also be represented by the light source 1 and the composite super-transmissionThe distance between the mirrors 21); l represents the distance between the compound superlens 21 and the table top (or also the distance between the central superlens 211 and the table top); h represents the radius of the central superlens 211 (as shown in FIG. 3); m represents a half width of the light source 1 (not shown in fig. 2, in this case, the light source 1 is a surface light source); and h is greater than m.
In the embodiment of the present invention, the center super lens 211 is located between the focal length and the light source 1 and the desktop
In the relation of (1), the detection light emitted through the central superlens 211 can be emitted to the tabletop in a convergent manner; further, when the light source 1 is a point light source, that is, when m =0, the above relational expression
The method can also be arranged as follows:
optionally, a central superlens 211 is used to focus the probe light; on the basis of realizing convergence, the embodiment of the present invention can further make the probe light emitted from the light source 1 modulated by the central super lens 211, and finally form a focusing effect on the desktop; under the condition, the detection light emitted to the desktop by the mouse optical system provided by the embodiment of the invention is more concentrated, so that the reflected light formed by the desktop can be more easily received by the edge super lens 212.
Optionally, referring to fig. 2, the central superlens 211, the light source 1 and the table top satisfy the relation:
wherein, f 1 Represents the focal length of the central superlens 211; d represents the distance between the light source 1 and the central superlens 211 (or may also be represented as the distance between the light source 1 and the compound superlens 21); l represents the distance between the compound superlens 21 and the table top (or may also be represented as the distance between the central superlens 211 and the table top)Off).
In the embodiment of the present invention, satisfy the relational expression between the focal length of the central super lens 211 and the light source 1 and the desktop:
in this case, the probe light emitted through the central superlens 211 can be emitted to the desktop in a focused manner.
Alternatively, referring to fig. 2, the relationship between the edge super lens 212 and the optical sensor 3 and the table top is satisfied:
wherein f is 2 Represents the focal length of edge superlens 212; l represents the distance between compound superlens 21 and the table top (or also can be represented as the distance between edge superlens 212 and the table top); l' represents the distance between the compound superlens 21 and the optical sensor 3 (or may also be represented as the distance between the edge superlens 212 and the optical sensor 3).
Because the reflected light reflected by the desktop needs to be emitted to the optical sensor 3 after being received by the edge super lens 212, the embodiment of the present invention may determine the position relationship between the edge super lens 212 (or the composite super lens 21) and the desktop and the optical sensor 3, respectively, based on the gaussian formula (or may be referred to as an imaging formula), so that the reflected light reflected by the desktop can be imaged on the surface of the optical sensor 3 (i.e. emitted into the optical sensor 3) after being received by the edge super lens 212. In the Gaussian formula, f represents the focal length, such as the focal length f of the edge super lens 212 in the embodiment of the present invention 2 (ii) a u represents the object distance, e.g., the distance l between the edge superlens 212 (composite superlens 21) and the tabletop in the embodiment of the present invention; v represents an image distance, such as a distance l' between the edge superlens 212 (composite superlens 21) and the optical sensor 3 in the embodiment of the present invention; the above relation can be obtained by substitution
And based on the relationship, the position of edge superlens 212 is set toThe reflected light reflected by the table surface is incident on the optical sensor 3.
Optionally, the distance between the compound superlens 21 and the optical sensor 3 is greater than the distance between the compound superlens 21 and the tabletop.
The embodiment of the utility model provides a can be through the compound super lens 21 of design (or can also indicate marginal super lens 212) respectively with desktop and optical sensor 3 between the position relation, make this mouse optical system can possess the magnification function. Wherein, as shown in fig. 2, in the case that the distance l' between the compound superlens 21 (or also referred to as the edge superlens 212) and the optical sensor 3 is greater than the distance l between the compound superlens 21 (or also referred to as the edge superlens 212) and the desktop, as in the case of
In the situation of (1), the image formed by the reflected light of the edge super lens 212 toward the optical sensor 3 can be amplified by the edge super lens 212, that is, the embodiment of the present invention provides a mouse optical system which can have an amplifying function and is beneficial to improving the intensity of the electrical signal obtained by the optical detector 3 by converting the reflected light.
Optionally, the distance between the compound superlens 21 and the optical sensor 3 is less than twice the distance between the compound superlens 21 and the tabletop.
The embodiment of the utility model provides a on making this mouse optical system have the basis of enlargeing the function, can also control this mouse optical system's total system length through further injecing compound super lens 21 (or also can indicate marginal super lens 212) respectively with the desktop and optical sensor 3 between the position relation, make this mouse optical system compacter.
For example, limiting the distance l' between compound superlens 21 (or edge superlens 212 as well) and optical sensor 3 to less than twice the distance l between compound superlens 21 (or edge superlens 212 as well) and the tabletop, as in
In the case of (2), the final edge isThe image formed by the reflected light from the edge super lens 212 toward the optical sensor 3 can be enlarged by the edge super lens 212, and the volume of the mouse optical system can be further reduced, so that the whole mouse optical system is more compact.
The embodiment of the present invention further provides a mouse, as shown in fig. 4, the mouse includes: any of the above mouse optical system 100, signal processing system 200, transmission line 300, and housing 400; the mouse optical system 100 is configured to obtain an electrical signal of the reflected light reflected by the desktop, and send the electrical signal to the signal processing system 200 through the transmission line 300; the signal processing system 200 processes the received electric signal to obtain the displacement and direction of the mouse, and transmits the displacement and direction of the mouse to the computer; the housing 400 is for accommodating the mouse optical system 100, the signal processing system 200, and the transmission line 300.
In the embodiment of the present invention, the mouse optical system 100, the signal processing system 200 and the transmission line 300 are all disposed inside the housing 400, and the housing 400 is a shape of a mouse housing commonly found on the market, and is used for accommodating the mouse optical system 100, the signal processing system 200 and the transmission line 300, and supporting the hand of the operator, and moving the hand on the desktop under the operation of the operator. Wherein, the light source 1 in the mouse optical system 100 emits the detection light to the desktop, and finally the optical signal is converted to obtain an electrical signal (such as light intensity information) according to the optical signal of the reflected light reflected by the desktop and collected by the optical detector 3 in the mouse optical system 100; and transmits an electrical signal (e.g., light intensity information) from the mouse optical system 100 to the signal processing system 200 through the transmission line 300 respectively interconnected with the mouse optical system 100 and the signal processing system 200; the signal processing system 200 can calculate the displacement direction and displacement of the mouse by differentiating the received electrical signals (such as light intensity information), and transmit the displacement direction and displacement of the mouse to a computer in a wired (data line or USB connection line) or wireless (bluetooth or wireless local area network) manner. It should be noted that, in the mouse, the process of converting the optical signal into the electrical signal by the mouse optical system 100 (for example, the optical sensor 3 therein), and the process of obtaining the displacement direction and the displacement magnitude of the mouse by the signal processing system 200 through differential calculation are both the prior art, and the embodiment of the present invention does not make any improvement on the above two processes.
The embodiment of the present invention provides a mouse, which has the optical system 100 of the mouse, and can generate enough reflected light on a smooth desktop, and finally obtain strong light intensity information, so that the signal processing system can sufficiently distinguish the moving direction and distance of the mouse, thereby greatly improving the performance of the mouse; in addition, the mouse can be based on a more compact mouse optical system 100, so that the whole mouse can be further reduced in size and more miniaturized.
Optionally, referring to fig. 4, the mouse further includes: a feedback line 500, wherein the feedback line 500 is connected to the signal processing system 200 and the mouse optical system 100 respectively; the feedback line 500 is used to make the light source 1 in the mouse optical system 100 reduce the light intensity of the emitted probe light in the case where the signal processing system 200 recognizes that the electrical signal is not changed.
In the embodiment of the present invention, a feedback line 500 may be connected between the mouse optical system 100 and the signal processing system 200, in addition to the transmission line 300; specifically, the feedback line 500 may enable the signal processing system 200 and the light source 1 in the mouse optical system 100 to establish an information transmission relationship, for example, the feedback line 500 is directly connected to the signal processing system 200 and the light source 1 in the mouse optical system 100, and when the signal processing system 200 finds through calculation and comparison that the electrical signal (e.g., light intensity information) transmitted by the mouse optical system 100 through the transmission line 300 is not changed (e.g., the mouse is not displaced), the feedback line 500 may transmit a prompt that the electrical signal is not changed to the light source 1 in the mouse optical system 100, so that the light source 1 reduces the emission of the detection light, thereby achieving the effect of saving energy.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the technical solutions of the changes or replacements within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (16)
1. An optical system for a mouse, comprising: a light source (1), a superlens (2) and an optical sensor (3);
the light source (1) is used for emitting detection light to the desktop;
the superlens (2) is used for receiving the reflected light reflected by the table top and focusing the reflected light into the optical sensor (3);
the optical sensor (3) is used for converting incident reflected light into an electric signal from an optical signal.
2. The mouse optical system according to claim 1, characterized in that the superlens (2) is a compound superlens (21);
the light source (1), the compound superlens (21) and the optical sensor (3) are coaxially arranged, the compound superlens (21) is positioned on the light-emitting side of the light source (1), and the optical sensor (3) is positioned on one side, far away from the compound superlens (21), of the light source (1);
the compound superlens (21) includes: a central superlens (211) and an edge superlens (212) arranged in a coplanar manner; the edge super lens (212) is arranged around the central super lens (211) and is connected with the central super lens (211);
the central superlens (211) is arranged opposite to the light source (1) and is used for projecting the detection light on the desktop positioned at the light outlet side of the central superlens (211);
the edge super lens (212) is used for focusing and emitting the reflected light reflected by the tabletop into the optical sensor (3).
3. The mouse optical system according to claim 2, wherein the central superlens (211) is configured to collimate or converge the probe light.
4. A mouse optical system according to claim 3, characterized in that the distance between the light source (1) and the central superlens (211) is smaller than the focal length of the central superlens (211) in case the central superlens (211) is used to collimate the probe light.
5. Mouse optical system according to claim 4, characterized in that the relation between the central superlens (211) and the light source (1) is satisfied:
wherein f is 1 Represents a focal length of the central superlens (211); h represents the radius of the central superlens (211); d represents the distance between the light source (1) and the central superlens (211); m represents the half-width of the light source (1); and h is greater than m.
6. The mouse optical system according to claim 3, wherein in a case where the central superlens (211) is used to converge the probe light, a distance between the light source (1) and the central superlens (211) is greater than twice a focal length of the central superlens (211).
7. The mouse optical system according to claim 6, wherein the focal length of the central superlens (211) satisfies the relation:
wherein, f 1 Represents the focal length of the central superlens (211); d represents the distance between the light source (1) and the central superlens (211); l represents the distance between the compound superlens (21) and the tabletop; h represents the radius of the central superlens (211); m represents the half-width of the light source (1); and h is greater than m.
8. The mouse optical system according to claim 7, wherein the central superlens (211) is configured to focus the probe light.
9. The mouse optical system according to claim 8, characterized in that the relation among the central superlens (211), the light source (1) and the desktop is satisfied:
wherein f is 1 Represents a focal length of the central superlens (211); d represents the distance between the light source (1) and the central superlens (211); l represents the distance between the compound superlens (21) and the table top.
10. A mouse optical system according to any one of claims 2-9, characterized in that the relationship between the edge superlens (212) and the optical sensor (3) and the desktop is satisfied:
wherein f is 2 Represents a focal length of the edge superlens (212); l represents the distance between the compound superlens (21) and the tabletop; l' represents the distance between the compound superlens (21) and the optical sensor (3).
11. Mouse optical system according to claim 10, characterized in that the distance between the compound superlens (21) and the optical sensor (3) is greater than the distance between the compound superlens (21) and the desktop.
12. The mouse optical system according to claim 11, characterized in that the distance between the compound superlens (21) and the optical sensor (3) is less than twice the distance between the compound superlens (21) and the desktop.
13. Mouse optical system according to claim 1, characterized in that the light source (1) comprises a light emitting diode.
14. Mouse optical system according to claim 1, characterized in that the optical sensor (3) comprises: a photodiode, a photoresistor, or a phototriode.
15. A mouse, comprising: the mouse optical system (100), the signal processing system (200), the transmission line (300), and the housing (400) according to any one of claims 1-14 above;
the mouse optical system (100) is used for acquiring an electric signal of reflected light reflected by a desktop and sending the electric signal to the signal processing system (200) through the transmission line (300);
the signal processing system (200) processes the received electric signals to obtain the displacement and the direction of the mouse and transmits the displacement and the direction of the mouse to a computer;
the housing (400) is for accommodating the mouse optical system (100), the signal processing system (200), and the transmission line (300).
16. The mouse of claim 15, further comprising: a feedback line (500), wherein the feedback line (500) is respectively connected with the signal processing system (200) and the mouse optical system (100);
the feedback line (500) is used for enabling the light source (1) in the mouse optical system (100) to reduce the light intensity of the emitted detection light under the condition that the signal processing system (200) identifies that the electric signal is not changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222611571.1U CN218240869U (en) | 2022-09-29 | 2022-09-29 | Mouse optical system and mouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222611571.1U CN218240869U (en) | 2022-09-29 | 2022-09-29 | Mouse optical system and mouse |
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| Publication Number | Publication Date |
|---|---|
| CN218240869U true CN218240869U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222611571.1U Active CN218240869U (en) | 2022-09-29 | 2022-09-29 | Mouse optical system and mouse |
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| Country | Link |
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| CN (1) | CN218240869U (en) |
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