Mouse lens and optical mouse

Abstract

The utility model discloses a mouse lens and an optical mouse, the mouse lens comprises a light guide part and a light collecting part used for collecting light, the light guide part comprises a first light incident surface, a light splitting surface and a light reflecting surface, the first light incident surface and the light splitting surface are arranged on two opposite sides of the light guide part, and the light reflecting surface is connected with the first light incident surface; the light collecting part comprises a second light inlet face and a light outlet face, and the second light inlet face and the light outlet face are oppositely arranged. One part of the light projected to the light splitting surface is transmitted out of the light splitting surface to form a light beam a, and the other part is reflected by the light splitting surface to form a light beam b. The light beam a directly irradiates the tracing surface, and the light beam b is reflected to the light reflecting surface and then irradiates the tracing surface from the light splitting surface at different angles. The photosensitive IC chip can receive imaging pixels brought by reflected light at two angles, and the problems that the photosensitive IC chip is insensitive in reaction on a rough desktop and prone to failure are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical lens technical field especially, relate to a mouse lens and optical mouse. BACKGROUND

[0002] The prior art optical mouse usually adopts the design of a LED lamp and a bundle of light paths, as shown in the figure. Figure 1 The following defects exist:

[0003] 1. The light beam irradiated to the tracking surface 6 (such as mouse pad or desktop) of the optical mouse has only one angle, resulting in too few light rays received by the photosensitive IC chip, which easily causes the mouse to sometimes be not sensitive and easily fail, and also has certain limitation on the use occasion of the mouse, and the mouse cannot be used in some places, such as rough desktop, which brings inconvenience to use.

[0004] 2. Due to the difference of the mouse shell of each manufacturer, the distance between the photosensitive IC chip 8 and the tracking surface 6 is inconsistent, and a bundle of light can only allow the photosensitive IC chip to receive an angle of imaging, so that the imaging clarity of the photosensitive IC chip changes due to the difference in the height of the mouse bottom shell, thereby causing the problems of line drawing, cursor jitter, cursor immobility and insufficient precision of clicking. INVENTION CONTENT

[0005] The utility model aims at the deficiency of the prior art and provides a mouse lens and an optical mouse.

[0006] To solve the above problems, the technical scheme adopted by the utility model is:

[0007] A mouse lens comprises a light guide part and a light collecting part for converging light rays, the light guide part comprises a first light inlet surface, a light splitting surface and a reflecting surface, the first light inlet surface and the light splitting surface are arranged on opposite sides of the light guide part, and the reflecting surface is connected with the first light inlet surface; the light collecting part comprises a second light inlet surface and a light outlet surface, and the second light inlet surface is arranged opposite to the light outlet surface.

[0008] Further, the light splitting surface is located below the first light inlet surface and the reflecting surface.

[0009] Further, the second light inlet surface is located below the light outlet surface.

[0010] Further, the first light inlet surface, the second light inlet surface and the light outlet surface are curved surfaces.

[0011] Further, the light splitting surface is a semi-transparent and semi-reflective plane.

[0012] Further, the reflecting surface is a plane or a curved surface same as the first light inlet surface.

[0013] Further, the light guide portion and the light collecting portion are integrally formed.

[0014] An optical mouse comprises the mouse lens.

[0015] The above technical solution has the following beneficial effects:

[0016] The light projected to the light splitting surface is partly transmitted out of the light splitting surface to form a light beam a, and partly reflected by the light splitting surface to form a light beam b. The light beam a is directly irradiated on the tracing surface, and the light beam b is reflected to the reflecting surface and then irradiated on the tracing surface from the light splitting surface at different angles. The imaging pixels brought by the reflected light at two angles can be received by the photosensitive IC chip, and the problem that the photosensitive IC chip is not sensitive to the rough desktop and is easy to fail is solved.

[0017] The path of the light is changed to divide into two light beams a and b, the photosensitive IC chip can receive a wider imaging angle, the problem that the height of the bottom shell of the mouse affects the imaging effect of the photosensitive IC chip is solved, the mouse is more smooth and the clicking is more accurate, and the applicability of the mouse lens is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the prior art;

[0019] Figure 2 is a schematic diagram of the present application;

[0020] Figure 3 is a light guide path diagram of the present application.

[0021] In the figure: 1, first light entrance surface; 2, light splitting surface; 3, reflecting surface; 4, second light entrance surface; 5, light exit surface; 6, tracing surface; 7, LED lamp; 8, photosensitive IC chip. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0023] In the description of the utility model, it is necessary to explain, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for description purposes, and cannot be understood as indicating or implying relative importance.

[0024] As Figure 2 and Figure 3 A mouse lens, including light guide part and light collecting part for converging light, the light guide part includes first light-in surface 1, light splitting surface 2 and reflecting surface 3, the first light-in surface 1 and light splitting surface 2 are arranged on the opposite sides of light guide part, the reflecting surface 3 is connected with the first light-in surface 1. The first light-in surface 1 is used for receiving LED light 7, a part of the light projected to the light splitting surface 2 is transmitted out of the light splitting surface 2 to form light beam a, and a part is reflected by the light splitting surface 2 to form light beam b. Light beam a is irradiated to the tracking surface 6. Light beam b is reflected to the reflecting surface 3 and then reflected to the light splitting surface 2, and is irradiated to the tracking surface 6 at different angles from the light splitting surface 2. The light collecting part includes second light-in surface 4 and light-out surface 5, and the second light-in surface 4 is arranged opposite to the light-out surface 5. The second light-in surface 4 is used for receiving the light reflected by the light splitting surface 2 and the tracking surface 6, and the light-out surface 5 is used for emitting the light into the light collecting part.

[0025] Specifically, the light splitting surface 2 is located below the first light-in surface 1 and the reflecting surface 3. The second light-in surface 4 is located below the light-out surface 5. The first light-in surface 1, the second light-in surface 4 and the light-out surface 5 are curved surfaces. The light splitting surface 2 is a semi-transparent and semi-reflective plane. The reflecting surface 3 is a plane or a curved surface same as the first light-in surface 1. In this embodiment, the reflecting surface 3 is a curved surface.

[0026] The light guide part and the light collecting part are integrally formed, and the integral forming can improve the production efficiency. Non-integral forming can also realize the same structure of the mouse lens, but the processing process is relatively more complicated.

[0027] The light emitted by the LED lamp 7 is collected by the first light entrance surface 1 and then irradiates onto the light splitting surface 2, and the light projected onto the light splitting surface 2 is partly transmitted out of the light splitting surface 2 to form a light beam a, and partly reflected by the light splitting surface 2 to form a light beam b. The light beam a directly irradiates onto the tracing surface 6, and the light beam b is reflected to the reflecting surface 3 and then reflected to the light splitting surface 2, and irradiates onto the tracing surface 6 from the light splitting surface 2 at different angles. The light beam a and the light beam b are reflected by the tracing surface 6, enter the light collecting part through the second light entrance surface 4, and then are emitted out of the light emitting surface 5 to the photosensitive IC chip 8. The photosensitive IC chip 8 can receive the imaging pixels brought by the reflected light at two angles.

[0028] The utility model discloses still a kind of optical mouse, including the mouse lens of above-mentioned. The key innovative technical point of the application is mouse lens, so when describing the components of optical mouse, only relevant components can be described, other optical mouse components are not described in detail.

[0029] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.

Claims

1. A mouse lens comprising a light guide portion and a light collecting portion for converging light rays, characterized in that: The light guide part comprises a first light inlet surface (1), a light splitting surface (2) and a light reflecting surface (3), the first light inlet surface (1) and the light splitting surface (2) are arranged on opposite sides of the light guide part, and the light reflecting surface (3) is connected with the first light inlet surface (1); the light collecting part comprises a second light inlet surface (4) and a light outlet surface (5), and the second light inlet surface (4) is arranged opposite to the light outlet surface (5).

2. The mouse lens of claim 1, wherein: The light splitting surface (2) is located below the first light inlet surface (1) and the light reflecting surface (3).

3. The mouse lens of claim 1, wherein: The second light inlet surface (4) is located below the light outlet surface (5).

4. The mouse lens of claim 1, wherein: The first light inlet surface (1), the second light inlet surface (4) and the light outlet surface (5) are curved surfaces.

5. The mouse lens of claim 1, wherein: The light splitting surface (2) is a semi-transparent and semi-reflective plane.

6. The mouse lens of claim 1, wherein: The light reflecting surface (3) is a plane or a curved surface same as the first light inlet surface (1).

7. The mouse lens of claim 1, wherein: The light guide part and the light collecting part are integrally formed.

8. An optical mouse, characterized by: A mouse lens comprising the mouse lens according to any one of claims 1-7.

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