JP2018159813A - Keyboard device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a keyboard device that allows the user to easily recognize that a key to be hit has been depressed and the strength of the key stroke without involving increase in the circuit size and system scale.SOLUTION: A keyboard device 1 has a plurality of keys 10 that are light transmissive and provided so as to be swingable in a key hitting direction, and a light source 54 that emits light to the key 10. The state of light emitted from an upper surface 11a of the key 10 is varied by a change in the relative positional relationship between the key 10 and the light source 54 caused by a key stroke without changing the light emission state of the light source 54. Therefore, by changing the light emission state mechanically by using the current circuit scale and control system without increasing the circuit size and the system scale, it can be visually recognized that a key to be hit has been depressed and the strength of the key stroke.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a keyboard device having a key capable of emitting light.

  2. Description of the Related Art Conventionally, musical instruments having keyboards such as electronic pianos and electronic organs having keys capable of emitting light are known (see Patent Document 1 and Patent Document 2).

In the musical instrument described in Patent Document 1, the LED provided on the keyboard is used to emit and guide the key to be pressed based on the performance data, and the key pressed according to the user's key pressing operation. Various settings such as light emission in various forms can be selected. As a result, the user can select a necessary function, and an added value unique to the electronic musical instrument other than the conventional musical instrument is realized.
Moreover, in the musical instrument described in Patent Document 2, a light guide having a part of elasticity is provided in order to guide the light emitted from the LED to the surface of the key. Thereby, the visibility of the light-emitting key is improved.

JP 2007-199134 A JP 2005-352505 A

In the above prior art, although the key that has been pressed can be made to emit light and the key to be pressed can be made to emit light, it is difficult to visually recognize that the key to be pressed has been pressed because the light emission state is the same. It was. In addition, there is a problem in that the keyed strength cannot be visually recognized from the light emitting state.
These problems can be solved by electrical control, such as using multiple color light sources or detecting the amount of key depression with a sensor to change the amount of light or color. There has been a problem that the circuit scale and system scale become large.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a keyboard device that allows a user to easily recognize a key-stroke state without increasing a circuit scale or a system scale.

In order to achieve the above object, the present invention is grasped by the following configuration.
The keyboard device of the present invention includes a plurality of keys that are light transmissive and swingable in the keying direction, and a light source that irradiates light to the key. The state of the light emitted from the surface portion of the key is changed by the change in the relative positional relationship.

  ADVANTAGE OF THE INVENTION According to this invention, the keyboard apparatus which can visually recognize the keystroke state of a key easily can be provided, without enlarging a circuit scale or a system scale.

(A) is a top view of the key in 1st Embodiment which concerns on this invention, (B) is sectional drawing of the key at the time of the non-keystroke in the AA position in (A), (C) is (A ) Is a cross-sectional view of the key at the time of keystroke at the position AA. (A) is explanatory drawing which shows the positional relationship of LED, the 1st optical member, and the 2nd optical member at the time of non-key-pressing, (B) is the positional relationship when a key is pressed to the middle of the rocking | fluctuation range. It is explanatory drawing shown, (C) is explanatory drawing which shows the positional relationship when a key is pressed to the limit of the rocking | fluctuation range. (A) is a top view of the key in 2nd Embodiment which concerns on this invention, (B) is sectional drawing of the key at the time of the non-keystroke in the AA position in (A), (C) is (A ) Is a cross-sectional view of the key at the time of keystroke at the position AA. (A) is explanatory drawing which shows the positional relationship of LED, the 1st optical member, and the 2nd optical member at the time of non-key-pressing, (B) is the positional relationship when a key is pressed to the middle of the rocking | fluctuation range. It is explanatory drawing shown, (C) is explanatory drawing which shows the positional relationship when a key is pressed to the limit of the rocking | fluctuation range. (A) is a top view of the key in 3rd Embodiment which concerns on this invention, (B) is sectional drawing of the key at the time of the non-keystroke in the AA position in (A), (C) is (A ) Is a cross-sectional view of the key at the time of keystroke at the position AA. (A) is sectional drawing of the key at the time of non-keystroke in 4th Embodiment based on this invention, (B) is sectional drawing of the key at the time of keystroke. (A) is sectional drawing of the key at the time of non-keystroke in 5th Embodiment which concerns on this invention, (B) is sectional drawing of the key at the time of keystroke. It is explanatory drawing which shows the diffraction fringe produced when a laser beam passes the opening of an optical member. It is principal part explanatory drawing of the keyboard apparatus of 6th Embodiment which concerns on this invention. (A) is a top view of the keyboard device of 7th Embodiment which concerns on this invention, (B) is sectional drawing of the AA position in (A) at the time of non-keystroke, (C) is at the time of keystroke (A) It is sectional drawing of an AA position. It is a block diagram which shows the control system in the keyboard apparatus of 7th Embodiment which concerns on this invention. (A) is a top view of the keyboard apparatus of 8th Embodiment which concerns on this invention, (B) is sectional drawing of the AA position in (A) at the time of non-keystroke, (C) is at the time of keystroke (A) It is sectional drawing of an AA position.

  Embodiments according to the present invention will be described below. In the following description, embodiments having common parts are collectively referred to as an embodiment group. First, an outline of a configuration and the like common to the embodiment group is described, and then the embodiment is described in detail. In addition, since embodiment based on this invention is widely applicable to the general electronic musical instrument provided with the keyboard apparatus, suppose that description and figure of electronic musical instrument itself are abbreviate | omitted.

<Embodiment group A>
First, features of the embodiment group A will be described.
In the embodiment group A, the keyboard device includes a plurality of keys that are light transmissive and swingable in the keying direction, and a light source that irradiates the key with light. The state of light emitted from the surface portion of the key is changed by a change in the relative positional relationship between the key and the key.
Further, the keyboard device is provided with an optical member that is provided between the light source and the key and changes the light from the light source, and changes the relative positions of the light source, the key, and the optical member by keystroke.
At this time, the keyboard device includes a light source composed of one light emitting element, a surface portion of the key having one transmissive portion, and a plurality of optical members having different emission color change characteristics. Is disposed on the light path from the light emitting element to the transparent portion, and the position of the optical member is changed by keystroke.
This has a first light emitting function for emitting a key to be pressed based on the performance data when no key is pressed, and a second light emitting function for emitting a key when the key is pressed. The emission color by the two emission function was made different.

(First embodiment)
FIG. 1A is a plan view of a key in the embodiment according to the present invention, and FIG. 1B is a cross-sectional view of the key when the key is not pressed at the position AA in FIG. FIG. 2C is a cross-sectional view of the key when the key is pressed at the position AA in FIG. In the cross-sectional view of FIG. 1B, a keyboard chassis, which is a musical instrument side support member that supports the keyboard device, is additionally described.

As shown in FIGS. 1A and 1B, the keyboard device 1 of the first embodiment is attached to a keyboard chassis 50 fixed to a musical instrument body (not shown). In the keyboard device 1, a plurality of keys 10 are arranged in parallel in the width direction of the keys 10. Here, a white key will be described as the key 10, but the key 10 may be applied to a black key although the color of the key 10 is different.
In the following description, as shown in FIG. 1B, the upper side when the keyboard device 1 is used is “upper” and the lower side is “lower”. Also, the side closer to the user will be described as “rear”, and the side farther from the user will be described as “front”.

  As shown in FIG. 1B, the keyboard chassis 50 covers the entire lower surface of the keyboard device 1, and a first substrate 51 is attached near the center of the upper surface of the keyboard chassis 50 in the front-rear direction. It has been. The first substrate 51 is provided over the entire length of the arrangement direction of the keys 10 (the vertical direction in FIG. 1A), and is disposed below all the keys 10. A rubber switch 52 is attached to the top surface of the first substrate 51 corresponding to each key 10.

  Further, in the vicinity of the rear end portion of the keyboard chassis 50, the second substrate 53 is provided over the entire length in the arrangement direction of the keys 10, and is disposed below the rear end portions of all the keys 10. The second substrate 53 may be integrated with the first substrate 51 or may be a separate body, but is electrically connected to the first substrate 51. The second substrate 53 is attached with the upper end inclined forward. An LED 54 (light emitting element) as a light source is attached to the second substrate 53 via a light source attachment member 55 so as to be orthogonal to the second substrate 53. The LED 54 emits light with an irradiation range R having a central angle of about 30 °, for example.

  The key 10 is made of, for example, resin and has light transparency. The key 10 can be transparent, but it is desirable to form the key 10 with a white resin that diffuses light because the internal machine can be seen and the appearance is impaired. The key 10 is formed from a single upper plate 11 and a pair of side plates 12, 12 extending downward from the left and right ends of the upper plate 11. ing.

  The front end of the key 10 is attached to the keyboard chassis 50 via the swing shaft 13, and a non-key-pressed position where no key is pressed (position shown in FIG. 2B) and a key-pressed position where the key is pressed to the limit (see FIG. 2) (position shown in FIG. 2C). The swingable range is restricted by a stopper portion (not shown) of the keyboard chassis 50. A switch pressing portion 14 is provided at the center in the longitudinal direction of the key 10 so as to face the rubber switch 52 of the keyboard chassis 50 downward from the lower surface of the upper plate 11.

  As shown in FIG. 1B, the switch pressing portion 14 does not press the rubber switch 52 when no key is pressed. On the other hand, as shown in FIG. 1C, when the user presses the key 10 down with his / her finger, the rear end of the key 10 swings downward about the swing shaft 13 and the switch pressing portion 14 Since it moves downward, the rubber switch 52 is pressed and crushed. As a result, a current flows through the first substrate 51 and it is detected that the key 10 has been pressed, and the LED 54 is turned on. When the finger that is hitting the key is removed from the key 10, the key 10 is pushed up to the non-keyed position by the elasticity of the rubber switch 52.

  A first optical member (optical member) 20 a is attached to the rear end portion of the key 10 downward from the lower surface of the upper plate 11. The first optical member 20a is formed in a triangular prism shape using a material that transmits light while diffusing, and the same color as the color of the key 10 is desirable. The first optical member 20a can be molded separately and attached to the lower surface of the upper plate 11 of the key 10. However, the first optical member 20a can be molded integrally with the key 10 using the same material. The upper surface (surface portion) 11a of the upper plate 11 corresponding to the region where the first optical member 20a is attached becomes the transmissive portion 15. Since the first optical member 20a transmits light while diffusing, light is incident on the first optical member 20a from any direction and is guided to the transmissive part 15 to cause the transmissive part 15 to emit light. be able to.

  A second optical member (optical member) 22a made of a material that changes the color wavelength is attached to the lower half region of the first surface 21 on the LED 54 side of the first optical member 20a. The 2nd optical member 22a can affix a film-like member on the one surface 21 of the 1st optical member 20a. Alternatively, when the first optical member 20a is molded, the second optical member 22a can be integrally molded in two colors on the lower half of the one surface 21.

  As shown in FIG. 1B and FIG. 2A, in the positional relationship between the LED 54 and the first optical member 20a and the second optical member 22a at the time of non-keystroke, only the second optical member 22a is the LED 54. It is located in the irradiation range R. In this state, the light from the LED 54 is incident on the second optical member 22 a to change the color of the light, is incident on the first optical member 20 a, and is guided to the transmissive portion 15.

  In addition, as shown in FIGS. 1C and 2C, in the state where the key 10 is completely pressed down at the time of keystroke, only the first optical member 20a is positioned in the irradiation range R of the LED 54, The second optical member 22a is not irradiated at all. In this state, the light from the LED 54 is guided to the transparent portion 15 of the key 10 only by the first optical member 20a without being influenced by the second optical member 22a.

Next, the light emission state when using the keyboard device 1 will be described.
FIG. 2A shows the positional relationship among the LED 54, the first optical member 20a, and the second optical member 22a when no key is pressed. FIG. 2B shows the positional relationship among the LED 54, the first optical member 20a, and the second optical member 22a when the key 10 is pressed halfway through the swing range. FIG. 2C shows the positional relationship among the LED 54, the first optical member 20a, and the second optical member 22a when the key 10 is pressed to the limit of the swing range.

  As shown in FIGS. 1B and 2A, only the second optical member 22a is located in the irradiation range R of the LED 54 when no key is pressed. That is, the irradiation range R is equal to the light range R1 irradiated to the second optical member 22a. For this reason, when the LED 54 emits light by the guide function that informs the key 10 to be pressed next, the light from the LED 54 is incident only on the second optical member 22a, and changes the color to the first optical member 20a. The light is guided to illuminate the transparent portion 15 of the upper plate 11 of the key 10. As a result, the transparent portion 15 emits light in a color different from the color of the key 10, so that the user can visually recognize the key 10 to be pressed next.

  As shown in FIG. 2 (B), when the rear end of the key 10 is gradually pushed down by the keystroke from the non-keystroke state, the first optical member 20a and the second optical member 22a are lowered along with the key 10. . Since the position of the LED 54 does not change, the irradiation light from the LED 54 rises relatively, and the irradiation range R shifts from the second optical member 22a to the first optical member 20a. In the middle of the transition, since the range R1 of the second optical member 22a included in the irradiation range R gradually decreases, the color of the transmissive portion 15 corresponds to the amount of lowering of the key 10 and the second optical member 22a. The color of the first optical member 20a changes continuously from the color of the first optical member 20a. The change in the color of the transparent portion 15 allows the user to visually recognize that the key 10 to be pressed is being pressed. Further, the keystroke strength can be visually recognized based on the degree of color change.

  As shown in FIGS. 1C and 2C, when the key is hit to the limit, only the first optical member 20a is positioned in the irradiation range R of the LED. That is, the range R1 irradiated to the second optical member 22a becomes zero. For this reason, the transmissive part 15 emits light in the color of the first optical member 20a without being affected by the second optical member 22a. Thereby, the user can visually recognize that the key 10 to be pressed is strongly pressed.

  As described above, according to the keyboard device 1 of the first embodiment described above, the state of the light emitted from the upper surface 11a of the key 10 is changed by the change in the relative positional relationship between the key 10 and the LED 54 due to keystroke. For this reason, the key 10 to be pressed and the strength of the key pressing can be easily achieved by mechanically changing the light emission state using the current circuit scale and control system without increasing the circuit scale or the system scale. It can be visually recognized.

  In addition, the first optical member 20a and the second optical member 22a that change the light from the LED 54 are provided between the LED 54 and the key 10, and the LED 54, the key 10, and the optical member (first optical member 20a) are pressed by keystroke. The relative position of the second optical member 22a) is changed. Thereby, since the state of the light emitted from the upper surface 11a of the key 10 can be changed, it is possible to easily visually recognize that the key 10 to be pressed and the strength of the key are pressed.

  Further, each key 10 is provided with one LED 54, one transparent portion 15, and a first optical member 20a and a second optical member 22a as a plurality of optical members having different emission color change characteristics. . Then, the first optical member 20a and the second optical member 22a are arranged on the light path from the LED 54 to the transmissive part 15, and the first optical member 20a and the second optical member 22a are pressed by keying. The position of was changed. For this reason, since the light emission color of the transparent part 15 can be changed according to the amount of descending of the key 10 that has been pressed, it is possible to visually recognize that the key 10 to be pressed has been pressed. Further, the strength of the keystroke can be easily visually recognized from the degree of change in the emission color.

(Second Embodiment)
Hereinafter, a keyboard device according to a second embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common in the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  FIG. 3 (A) is a plan view of a key in the second embodiment according to the present invention, and FIG. 3 (B) is a cross-sectional view of the key at the time of non-key-pressing at the position AA in FIG. FIG. 3C is a cross-sectional view of the key when the key is pressed at the position AA in FIG.

  As shown in FIGS. 3A to 3C, in the keyboard device 2 according to the second embodiment of the present invention, the first optical member (optical member) 20 b is the upper plate at the rear end of the key 10. 11 is attached downward from the lower surface. The first optical member 20b is formed using a material that transmits light while diffusing, and the same color as the color of the key 10 is desirable. The first optical member 20b can be separately molded and affixed to the lower surface of the upper plate 11 of the key 10. Alternatively, the first optical member 20b can be molded integrally with the key 10 using the same material. The upper surface 11a of the upper plate 11 corresponding to the region where the first optical member 20b is attached becomes the transmissive portion 15.

  In the first surface 23 on the LED 54 side of the first optical member 20 b, a convex surface 23 a that protrudes toward the LED 54 is formed on the upper half, and a concave surface 23 b that is recessed on the opposite side to the LED 54 is formed on the lower half of the one surface 23. ing. The convex surface 23a and the concave surface 23b can be formed in a cylindrical surface, for example.

  A second optical member (optical member) 22b formed of a material that changes the color wavelength is attached to the surface of the concave surface 23b. The 2nd optical member 22b can affix a film-like member on the concave surface 23b of the 1st optical member 20b. Alternatively, when the first optical member 20b is molded, the second optical member 22b can be integrally molded in two colors on the surface of the concave surface 23b. It is also possible to provide a third optical member made of a material that changes the color wavelength on the convex surface 23a.

  As shown in FIGS. 3B and 4A, the positional relationship between the LED 54, the first optical member 20b, and the second optical member 22b when no key is pressed is such that only the second optical member 22b is the LED 54. It is located in the irradiation range R. That is, the irradiation range R is equal to the light range R2 irradiated to the second optical member 22b. In this state, the light from the LED 54 is incident on the second optical member 22b to change the color of the light, is incident on the first optical member 20b, and is guided to the transmissive portion 15.

  Further, as shown in FIGS. 1C and 2C, only the convex surface 23a of the first optical member 20b is positioned in the irradiation range R of the LED 54 in a state where the key 10 is completely pushed down at the time of keystroke. Thus, the second optical member 22b is not irradiated at all. In this state, the light from the LED 54 is guided to the transparent portion 15 of the key 10 only by the first optical member 20b.

Next, the light emission state when using the keyboard device 2 will be described.
FIG. 4A shows the positional relationship among the LED 54, the first optical member 20b, and the second optical member 22b when no key is pressed. FIG. 4B shows the positional relationship among the LED 54, the first optical member 20b, and the second optical member 22b when the key 10 is pressed halfway through the swing range. FIG. 4C shows the positional relationship among the LED 54, the first optical member 20b, and the second optical member 22b when the key 10 is pressed to the limit of the swing range.

  As shown in FIGS. 3B and 4A, only the second optical member 22b is positioned in the irradiation range R of the LED 54 when no key is pressed. That is, the irradiation range R is equal to the light range R2 irradiated to the second optical member 22b. For this reason, when the LED 54 emits light by the guide function for notifying the key 10 to be pressed next, the light from the LED 54 is incident only on the second optical member 22b. Since the second optical member 22b is attached to the concave surface 23b, the light incident on the first optical member 20b from the second optical member 22b changes color and spreads inside the first optical member 20b. . Then, the light is guided to the first optical member 20 b to illuminate the transparent portion 15 of the upper plate 11 of the key 10. As a result, the transparent portion 15 emits light in a color different from the color of the key 10, so that the user can visually recognize the key 10 to be pressed next.

  As shown in FIG. 4B, when the key 10 is gradually pushed down by the keystroke from the non-keystroke state, the first optical member 20b and the second optical member 22b are lowered along with the key 10. Since the position of the LED 54 does not change, the irradiation light from the LED 54 rises relatively, and the irradiation range R shifts from the second optical member 22b to the convex surface 23a of the first optical member 20b. In the middle of the transition, the range R2 of the second optical member 22b included in the irradiation range R gradually decreases, so that the color of the transmissive portion 15 corresponds to the amount of lowering of the key 10 and the second optical member 22b. The color continuously changes from the first color to the color of the first optical member 20b. The change in the color of the transparent portion 15 allows the user to visually recognize that the key 10 to be pressed is being pressed. Further, the keystroke strength can be visually recognized based on the degree of color change.

  As shown in FIGS. 3C and 4C, when the key is hit to the limit, only the convex surface 23a of the first optical member 20b is located in the irradiation range R of the LED 54, and the light from the LED 54 is convex. It is incident on 23a and is guided by the first optical member 20b. At this time, the range R2 irradiated to the second optical member 22b is zero. Further, since the light from the LED 54 is incident on the convex surface 23a, the incident light is guided to the first optical member 20b while converging, so that it is avoided that the light is affected by the second optical member 22b after the incidence. The

  For this reason, the transmissive part 15 emits light in the color of the first optical member 20b without being affected by the second optical member 22b. Thereby, the user can visually recognize that the key 10 to be pressed is strongly pressed. In addition, by adjusting the focal length of the convex surface 23a and the concave surface 23b and the diffusing material, the mutual influence of the convex surface 23a and the concave surface 23b can be reduced, and the light can be efficiently condensed on the transmissive part 15.

As mentioned above, according to the keyboard apparatus 2 of 2nd Embodiment demonstrated, the effect | action and effect similar to the keyboard apparatus 1 of 1st Embodiment mentioned above can be acquired.
Furthermore, since the second optical member 22b is provided on the concave surface 23b of the first optical member 20b, the light incident on the second optical member 22b spreads evenly inside the first optical member 20b. In addition, since the one surface 23 on which the second optical member 22b is not provided is a convex surface 23a, when light is incident only on the convex surface 23a during keystroke, the second optical member 22b is not affected. Can do.

(Third embodiment)
Hereinafter, a keyboard device according to a third embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part which is common in the keyboard apparatus 1 of 1st Embodiment mentioned above, and the keyboard apparatus 2 of 2nd Embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 5 (A) is a plan view of the key in the third embodiment according to the present invention, and FIG. 5 (B) is a cross-sectional view of the key at the time of non-keying at the position AA in FIG. FIG. 5C is a cross-sectional view of the key at the time of key pressing at the position AA in FIG.

  As shown in FIGS. 5A to 5C, in the keyboard device 3 according to the third embodiment of the present invention, the first optical member (optical member) 20 c is the upper plate at the rear end of the key 10. 11 is attached downward from the lower surface. The first optical member 20 c has a right-angled triangular cross section, and is provided so that one surface 24 on the rear side is orthogonal to the upper plate 11 of the key 10.

  The first optical member 20c is formed using a material that transmits light while diffusing, and the same color as the color of the key 10 is desirable. The first optical member 20c can be molded separately and attached to the lower surface of the upper plate 11 of the key 10. However, the first optical member 20c can also be molded integrally with the key 10 using the same material. The upper surface 11a of the upper plate 11 corresponding to the region where the first optical member 20c is attached becomes the transmissive portion 15.

  On one surface 24 of the first optical member 20c, a second optical member (optical member) 22c formed of a material that changes the color wavelength is attached. The second optical member 22c can affix a film-like member on the one surface 24 of the first optical member 20c. Alternatively, when the first optical member 20c is molded, the second optical member 22c can be integrally molded on the one surface 24 in two colors. In addition, the second optical member 22c may be a single color, but may be a gradation in which the color and brightness change gradually.

  The LED 54 is provided below the upper plate 11 of the key 10. When no key is pressed, the irradiation direction of the LED 54 is orthogonal to the upper plate 11 and coincides with the surface direction of the second optical member 22c (FIG. 5 ( B)). For this reason, when the key is not pressed, the transparent portion 15 is caused to emit light without being affected by the second optical member 22c.

  Further, as shown in FIG. 5C, when the rear end of the key 10 is lowered when the key is pressed, the second optical member 22c gradually tilts with the tilt of the key 10, and the light from the LED 54 is reflected by the second optical element. The light enters the member 22c. Accordingly, since the influence of the second optical member 22c increases according to the amount of lowering of the key 10 (that is, the amount of inclination), the emission color of the transmissive part 15 gradually approaches the color of the second optical member 22c.

Next, the light emission state when using the keyboard device 3 will be described.
As shown in FIG. 5B, when the key is not pressed, the second optical member 22c attached to the one surface 24 of the first optical member 20c matches the irradiation direction of the LED 54. The transmissive part 15 emits light without the influence of the member 22c.

  On the other hand, when the key 10 is lowered by the keystroke, the second optical member 22c is inclined with respect to the irradiation direction of the LED 54 and receives light. Accordingly, the state of light is changed by the second optical member 22c, and the change is transmitted to the transmissive part 15 by the first optical member 20c. When the key 10 is strongly pressed and the descending amount is increased, the inclination angle of the second optical member 22c with respect to the irradiation direction of the LED 54 is increased, so that the influence of the second optical member 22c is increased. For this reason, the user can visually recognize the strength of the keystroke from the magnitude of the change in light.

  As mentioned above, according to the keyboard apparatus 3 of 3rd Embodiment demonstrated, the effect | action and effect similar to the keyboard apparatus 1 of 1st Embodiment mentioned above can be acquired.

<Embodiment group B>
In the embodiment group B, the keyboard device includes a plurality of keys that are light transmissive and swingable in the key-pressing direction, and a light source that irradiates the key with light. The state of light emitted from the surface portion of the key is changed by a change in the relative positional relationship between the key and the key.
Further, the keyboard device is provided with an optical member that is provided between the light source and the key and changes the light from the light source, and changes the relative positions of the light source, the key, and the optical member by keystroke.
At this time, the keyboard device has a light source composed of one light emitting element, a key surface having one transmissive part, an optical member, and a shielding member capable of shielding light from the light emitting element. The optical member is arranged on the light path from the light emitting element to the transmissive part, and the position of the shielding member on the light path is changed by keystroke to change the color of the light emitted from the transmissive part. I tried to make it.
This has a first light emitting function for emitting a key to be pressed based on the performance data when no key is pressed, and a second light emitting function for emitting a key when the key is pressed. The emission color by the two emission function was made different.

(Fourth embodiment)
Hereinafter, a keyboard device according to a fourth embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part common to the keyboard apparatus 3 of 3rd Embodiment from the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

FIG. 6A is a cross-sectional view when no key is pressed in the fourth embodiment of the present invention, and FIG. 6B is a cross-sectional view when the key is pressed.
As shown in FIGS. 6A and 6B, in the keyboard device 4 according to the fourth embodiment of the present invention, a diffraction grating (optical) is formed on the lower surface of the upper plate 11 corresponding to the transparent portion 15 of the key 10. Member) 25 is attached. A shielding member 26 is provided below the diffraction grating 25 between the pair of side plates 12 and 12 of the key 10 (see FIG. 1A). The diffraction grating 25 can be affixed separately to the lower surface of the upper plate 11 of the key 10. Further, when the key 10 is molded, a pattern corresponding to the diffraction grating 25 can be formed by integral molding. Alternatively, instead of the diffraction grating 25, a colored portion can be provided by a colored film or two-color molding.

  The LED 54 is provided below the upper plate 11 of the key 10 so that the key 10 can emit light and the diffraction grating 25 can be irradiated with light. The LED 54 is fixed to the keyboard chassis 50 and does not move. However, since the shielding member 26 and the diffraction grating 25 are provided on the key 10, the LED 54 moves together with the key 10.

With respect to the positional relationship among the LED 54, the shielding member 26, and the diffraction grating 25, the shielding member 26 is disposed on the light path of the LED 54 that irradiates the diffraction grating 25 as shown in FIG.
Further, as shown in FIG. 6B, when the key is pressed, the shielding member 26 is disposed so as to move away from the light path connecting the LED 54 and the diffraction grating 25 as the key 10 is lowered.

Next, the light emission state when using the keyboard device 4 will be described.
As shown in FIG. 6A, when the key is not pressed, the shielding member 26 is positioned on the light path of the LED 54 that irradiates the diffraction grating 25, so that the light is blocked by the shielding member 26 and enters the diffraction grating 25. Not reach. For this reason, when the LED 54 emits light by the first light emitting function for emitting the key 10 to be pressed based on the performance data when no key is pressed, the rear end portion of the key 10 emits light widely, but is not affected by the diffraction grating 25. The permeable part 15 does not change.

  On the other hand, as shown in FIG. 6B, when the key is depressed, the rear end of the key 10 is lowered by the key depression, so that the shielding member 26 is removed from the light path of the LED 54 as the key 10 moves. As a result, the diffraction grating 25 is irradiated with light, so that the light is diffracted into each wavelength component by the diffraction phenomenon of the light by the diffraction grating 25, and the transparent portion 15 emits rainbow color. At this time, according to the sinking amount of the key 10, the area of the shielding member 26 deviating from the light path is changed, and the amount of light irradiated to the diffraction grating 25 is changed. The strength of the keystroke can be visually recognized by the change of the shining area.

  As described above, according to the keyboard device 4 of the fourth embodiment described above, the state of the light emitted from the upper surface 11a of the key 10 is changed by the change in the relative positional relationship between the key 10 and the LED 54 due to keystroke. For this reason, the key 10 to be pressed and the strength of the key pressing can be easily achieved by mechanically changing the light emission state using the current circuit scale and control system without increasing the circuit scale or the system scale. It can be visually recognized.

  In addition, the diffraction grating 25 and the shielding member 26 that change the light from the LED 54 are provided between the LED 54 and the key 10, and the relative positions of the LED 54, the diffraction grating 25, and the shielding member 26 are changed by keystroke. That is, the diffraction grating 25 is disposed on the light path from the LED 54 to the transmissive portion 15 and the position of the shielding member 26 on the light path is changed by keystroke so that the light irradiated on the diffraction grating 25 is changed. The amount was changed. Thereby, since the state of the light emitted from the transparent part 15 can be changed, it is possible to easily visually recognize that the key 10 to be pressed is pressed and the strength of the key press.

<Embodiment group C>
Next, features of the embodiment group C will be described.
In the embodiment group C, the keyboard device includes a plurality of keys that are light transmissive and swingable in the keying direction, and a light source that irradiates the key with light. The state of light emitted from the surface portion of the key is changed by a change in the relative positional relationship between the key and the key.
Further, the keyboard device includes a light source having a light emitting element for irradiating laser light, a surface portion of a key having one transmissive part, and an optical member for guiding the laser light to the transmissive part. The position of the optical member changes to change the color of light emitted from the transmissive part.
This has a first light emitting function for emitting a key to be pressed based on the performance data when no key is pressed, and a second light emitting function for emitting a key when the key is pressed. The emission color by the two emission function was made different.

(Fifth embodiment)
Hereinafter, a keyboard device according to a fifth embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part common to the keyboard apparatus 4 of 4th Embodiment from the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

FIG. 7A is a cross-sectional view when the key is not pressed in the fifth embodiment according to the present invention, and FIG. 7B is a cross-sectional view when the key is pressed.
As shown in FIGS. 7A and 7B, in the keyboard device 5 of the fifth embodiment according to the present invention, a laser light source 56 with high straightness is used as the light source, and the vicinity of the front end of each key 10. Corresponding to the keyboard chassis 50. The laser light source 56 irradiates the laser beam LB backward along the key 10.

  Therefore, the laser beam LB is irradiated in a certain direction regardless of the keystroke operation, and is irradiated to the rear end plate 16 of the key 10. The rear end plate 16 is made of a light-transmitting material, and when the rear end plate 16 is irradiated with the laser light LB, the rear surface (surface portion) 16a emits light and becomes a transparent portion 15. As the laser light LB, white laser light including various colors is desirable because it uses diffraction as described later.

  An optical member 27 is provided near the rear end of the lower surface of the upper plate 11 of the key 10. The optical member 27 is not positioned in the path of the laser beam LB when the key is not pressed (see FIG. 7A). When the key 10 is lowered by pressing the key, since the position of the laser light source 56 is fixed, the laser beam LB is relatively raised and irradiated to the optical member 27 (see FIG. 7B).

  As shown in FIG. 8, the optical member 27 is made of a light-shielding material and is formed in a rectangular plate shape, and a plurality of openings 28 are provided in the vertical direction. The opening 28 is large at the lower end portion of the optical member 27 and becomes smaller toward the top. Here, the case where the circular opening 28 is used will be described, but a rectangular shape or other shapes are also possible.

  When the laser beam LB emitted from the laser light source 56 passes through the opening 28, diffraction fringes are generated on the rear end plate 16 by the diffraction, in which concentric ring-shaped bright portions and dark portions are alternately repeated. Thereby, a circular striped pattern can be visually recognized in the permeable region 15. When the laser beam LB passes through the large opening 28 below the optical member 27, the size and brightness (light quantity) of the generated diffraction fringes are large. When the laser beam LB rises relative to the optical member 27 and passes through the small opening 28, the size and brightness (light quantity) of the generated diffraction fringes are reduced. In addition, also when using the rectangular or other shaped opening 28, a striped pattern corresponding to the shape of the opening 28 can be visually recognized.

Next, the light emission state when using the keyboard device 5 will be described.
As shown in FIG. 7A, when the laser light source 56 of the key 10 to be pressed is emitted based on the performance data by the first light emission function when the key is not pressed, the laser beam LB does not pass through the optical member 27. Directly, the rear end plate 16 of the key 10 is irradiated and diffused. For this reason, the transparent part 15 is visually recognized in a state where the shape of the laser beam LB is diffused.

  On the other hand, as shown in FIG. 7B, when the key is pressed, the key 10 is lowered, so that the optical member 27 is irradiated with the laser beam LB. When the key is weak, the lowering amount of the key 10 is small, so that the laser beam LB passes through the large opening 28. Further, as the key is gradually strengthened, the amount by which the key 10 is lowered gradually increases, and the laser beam LB gradually passes through the small opening 28.

  As described above, according to the keyboard device 5 of the fifth embodiment described above, the state of the light emitted from the transparent portion 15 of the key 10 is changed by the change in the relative positional relationship between the key 10 and the laser light source 56 by the keystroke. I did it. For this reason, the key 10 to be pressed and the strength of the key pressing can be easily achieved by mechanically changing the light emission state using the current circuit scale and control system without increasing the circuit scale or the system scale. It can be visually recognized.

  In addition, an optical member 27 that guides the laser beam LB to the transmissive part 15 is provided between the laser light source 56 and the key 10, and the position of the optical member 27 is changed by the keystroke so that light emitted from the transmissive part 15 is emitted. The color was changed. For this reason, since the state of the light emitted from the transparent portion 15 of the key 10 can be changed, it is possible to easily visually recognize that the key 10 to be pressed and the strength of the key are pressed.

  In addition, an opening 28 is provided in the optical member 27 so that the size of the opening 28 changes according to the amount by which the key 10 is lowered. For this reason, when the key is weak, the lowering amount of the key 10 is small, so that the laser beam LB passes through the large opening 28. Thereby, a large and bright diffraction fringe is visually recognized in the transparent part 15. Further, as the key is gradually strengthened, the amount by which the key 10 is lowered gradually increases, and the laser beam LB gradually passes through the small opening 28. Thereby, since the gradually small and dark diffraction fringes are visually recognized in the transparent portion 15, it is possible to easily visually recognize that the key 10 to be pressed and the strength of the key are pressed.

(Sixth embodiment)
The keyboard device according to the sixth embodiment of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part common to the keyboard apparatus 1 of 5th Embodiment from the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

FIG. 9 is an explanatory view of the main part of the keyboard device 6 according to the sixth embodiment of the present invention.
As shown in FIG. 9, in the keyboard device 6 of the sixth embodiment according to the present invention, it is separate from the light source for the first light emitting function that emits the key 10 to be pressed based on the performance data when no key is pressed. In addition, a laser light source 57 for a second light emitting function for causing the key 10 to emit light when a key is pressed is provided. One laser light source 57 is fixed to the keyboard chassis 50 and emits laser light LB1 in the arrangement direction of the keys 10 below the keys 10. Although not shown, a light source for guiding (for the first light emitting function) is provided inside each key 10.

  An optical member 29 protrudes below each key 10. The optical member 29 is formed of a triangular prism-shaped transmissive reflective material, and has a reflective surface 29a. The positional relationship between the laser light source 57 and the optical member 29 is that the key 10 is in the upper position when the key is not pressed, and the optical member 29 is not irradiated with the laser beam LB1. On the other hand, since the key 10 is lowered when the key is pressed, the laser beam LB1 is applied to the reflecting surface 29a of the optical member 29.

Next, the light emission state when using the keyboard device 6 will be described.
As shown in FIG. 9, when the key is not pressed, the key 10 is on the upper side, so the laser beam LB1 from the laser light source 57 (LED) is not irradiated onto the optical member 29. For this reason, the transparent part 15 of the key 10 does not emit light when the key is pressed. Note that light emission is performed by the first light emission function for emitting a key to be pressed based on performance data.

  On the other hand, when the key 10 is lowered by the keystroke, the optical member 29 is also lowered, so that the optical member 29 is irradiated with the laser light LB1 from the laser light source 57 (LED). The laser beam LB1 irradiated to the optical member 29 is refracted by the reflection surface 29a of the optical member 29, and the transparent portion 15 of the key 10 is caused to emit light by the laser beam LB2. At this time, since the amount of lowering of the key 10 and the optical member 29 changes corresponding to the keystroke strength, the light emission intensity of the transparent portion 15 changes. Thereby, the keystroke strength can be visually recognized.

  As described above, according to the keyboard device 6 of the sixth embodiment described above, the state of light emitted from the transparent portion 15 of the key 10 is changed by changing the relative positional relationship between the key 10 and the laser light source 57 due to keystroke. I did it. For this reason, the key 10 to be pressed and the strength of the key pressing can be easily achieved by mechanically changing the light emission state using the current circuit scale and control system without increasing the circuit scale or the system scale. It can be visually recognized.

  Further, an optical member 29 that guides the laser beam LB1 to the transmissive part 15 is provided between one key and the laser light source 57 as a light source for the second light emitting function for causing the key 10 to emit light when the key is pressed, The position of the optical member 29 is changed by the keystroke, and the color of light emitted from the transmissive part 15 is changed. For this reason, since the state of the light emitted from the transparent portion 15 of the key 10 can be changed, it is possible to easily visually recognize that the key 10 to be pressed and the strength of the key are pressed.

<Embodiment group D>
Next, features of the embodiment group D will be described.
In a conventional keyboard device, a light source is provided for each key so that the key can emit light. This enables a first light emitting function for emitting a key to be pressed based on performance data when no key is pressed, and a second light emitting function for emitting a key when a key is pressed.

  However, in the conventional keyboard device, there is no guide function regarding the strength of sound when guiding the key to be pressed. Also, there was no function to notify the strength of keystrokes.

  The embodiment group D has been made in view of the above circumstances, and provides a keyboard device having a guide function relating to the strength of sound when guiding a key to be pressed and a function of notifying the strength of keystroke. With the goal.

For this reason, in the embodiment group D, the keyboard device includes a plurality of keys that are light transmissive and swingable in the keying direction, and a light source that emits light to the keys. The state of the light emitted from the surface portion of the key is changed by changing the relative positional relationship between the key and the light source.
The keyboard device has a light source having a plurality of light emitting elements and a surface portion of a key having a plurality of transparent portions corresponding to the respective light emitting elements, and changes depending on the keystroke. The amount of change in the distance between the light emitting element to be transmitted and the transmissive part is different for each combination of the light emitting element and the transmissive part.
Further, in the keyboard device, in the first combination of the light emitting element and the transmissive part, the light emission intensity of the light emitting element can be electrically controlled regardless of whether or not the key is pressed. In the combination of 2, the light emission intensity of the light-emitting element is kept constant, and the color of light emitted from the transmissive part is changed by the amount of change in the distance between the light-emitting element and the transmissive part that is changed by keystroke. did.
Furthermore, the keyboard device includes first strength specifying means for specifying the key strength of the key to be pressed based on the performance data, second strength specifying means for specifying the key strength of the actually pressed key, A light emission control means for comparing the first keying strength specified by the strength specifying means with the second keying strength specified by the second strength specifying means, and causing the transmissive part to emit light at an intensity according to the comparison result; The light emission control by the light emission control means is performed on the light emitting elements corresponding to the combination with the smaller amount of change in the distance between the light emitting element and the transmissive part caused by the keystroke.
This has a first light emitting function for emitting a key to be pressed based on the performance data when no key is pressed, and a second light emitting function for emitting a key when the key is pressed. The emission color by the two emission function was made different.

(Seventh embodiment)
Hereinafter, a keyboard device according to a seventh embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part common to the keyboard apparatus 1 of 6th Embodiment from the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  FIG. 10A is a plan view of a keyboard device according to a seventh embodiment of the present invention, and FIG. 10B is a cross-sectional view taken along line AA in FIG. 10 (C) is a cross-sectional view taken along the line AA in FIG. 10 (A) when the key is pressed.

  As shown in FIG. 10, in the keyboard device 7 according to the seventh embodiment of the present invention, a guide LED (light source) for displaying the key 10 to be pressed next is below the upper plate 11 of the key 10. 58 and a strength display LED (light source) 59 indicating the strength of keystroke. The guide LED 58 and the strength display LED 59 are attached to a second substrate 53 attached to a keyboard chassis 50 (not shown). A guide transmissive portion 17a is provided on the upper surface 11a of the upper plate 11 corresponding to the upper side of the guide LED 58, and the upper and lower display portions 11a of the upper plate 11 corresponding to the upper side of the strong and weak LED 59 are transmissive for strength display. A portion 17b is provided.

  The strength display LED 59 and the strength display transmissive portion 17b constitute a first combination, and the guide LED 58 and the guide transmissive portion 17a constitute a second combination. In the first combination, the light emission intensity of the strength display LED 59 is electrically controlled regardless of the presence or absence of keystrokes. In the second combination, no electrical control other than on / off is performed in order to keep the emission intensity of the guide LED 58 constant.

  As shown in FIG. 11, the keyboard device 7 has a CPU 60 which is a central control unit. The CPU 60 is connected with a memory 61 for storing performance data of the key 10 to be pressed, a light emission control means 62 for controlling the guide LED 58 and the strength display LED 59. Further, the CPU 60 specifies first strength specifying means 63 for specifying the keying strength of the key 10 to be pressed based on the performance data stored in the memory 61, and specifies the keying strength of the actually pressed key 10. The second strength specifying means 64 is connected. Further, a comparison unit 65 is connected for comparing the first key strength specified by the first strength specification means 63 with the second key strength specified by the second strength specification means 64.

Next, the light emission state when using the keyboard device 7 will be described.
As shown in FIG. 10B, when no key is pressed, the light emission control means 62 causes the guide LED 58 of the key 10 to be pressed to emit light based on the performance data stored in the memory 61. As a result, the guide transparent portion 17a emits light. At this time, the light emission intensity of the guide LED 58 is kept constant. In addition, since the key is not pressed when the key is not pressed, the strength display LED 59 does not emit light, and thus the strength display transmissive portion 17b does not emit light.

  As shown in FIG. 10C, when the key 10 that has been guided and the guide transparent portion 17a emits light is pressed, the second strength specifying means 64 specifies the actually pressed strength and determines the second key. Specify keystroke strength. Then, the comparison unit 65 compares the first key strike strength and the second key strike strength based on the performance data, and the light emission control means 62 causes the intensity display LED 59 to emit light. At this time, the light emission control means 62 controls the light emission state of the strength display LED 59 in accordance with the difference between the first key strike strength and the second key strike strength obtained by the comparison unit 65. For example, the greater the difference between the first key strength and the second key strength, the brighter or closer to red. Thereby, the keystroke strength can be visually recognized from the light emission state of the strength display transparent portion 17b.

  On the other hand, the light emission intensity of the guide LED 58 in the second combination is kept constant, but when the key 10 is lowered by the keystroke, the distance L1 between the guide LED 58 and the guide transmissive portion 17a becomes closer. The light emission intensity of the guide transparent portion 17a is increased. Note that the distance L2 between the strength display LED 59 and the strength display transmissive portion 17b in the first combination is also slightly closer, but the closer distance is smaller than in the second combination, so the strength display transmission is small. The influence on the luminescence intensity of the sex site 17b is small.

  As described above, according to the keyboard device 7 of the seventh embodiment described above, the state of the light emitted from the upper surface 11a of the key 10 is changed by the change in the relative positional relationship between the key 10 and the guide LED 58 by the keystroke. did. For this reason, the key 10 that has been pressed can be visually recognized by mechanically changing the light emission state using the current circuit scale and control system without increasing the circuit scale or system scale.

  Further, for each key 10, a guide LED 58 for displaying the key 10 to be pressed and a strength display LED 59 for indicating the strength of the key press are provided, and the guide transparent portion 17a and the strength display transmission are correspondingly provided. Sex site 17b was provided. Then, the amount of change in the distance between the light source and the transmissive part, which is changed by the keystroke, is made different for each combination of the light source and the transmissive part.

  Further, the light emission intensity of the strength display LED 59 is electrically controlled regardless of whether or not there is a keystroke. Further, the light emission intensity of the guide LED 58 is kept constant, and the distance between the guide LED 58 and the guide transmissive portion 17a varies depending on the keystroke. The color of the emitted light can be changed. As a result, the key 10 that has been pressed can be visually recognized.

  Furthermore, the light emission control means 62 compares the first keystroke strength specified by the first strength specification means 63 with the second keystroke strength specified by the second strength specification means 64, and the strength according to the comparison result. Then, the intensity display LED 59 emits light, and the intensity display transparent portion 17b emits light. Thereby, the difference between the keying strength actually pressed and the keying strength instructed from the performance data can be easily recognized.

(Eighth embodiment)
Hereinafter, a keyboard device according to an eighth embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the site | part common to the keyboard apparatus 1 of 7th Embodiment from the keyboard apparatus 1 of 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  FIG. 12A is a plan view of a keyboard device according to an eighth embodiment of the present invention, and FIG. 12B is a cross-sectional view taken along the line AA in FIG. 12 (C) is a cross-sectional view taken along the line AA in FIG. 12 (A) when the key is pressed.

  As shown in FIG. 12, in the keyboard device 8 of the present embodiment, a guide LED 58 for displaying the key 10 to be pressed next, and the strength indicating the strength of the keystroke, below the upper plate 11 of the key 10. A display LED 59 is provided. The guide LED 58 and the strength display LED 59 are attached to the second substrate 53 of the keyboard chassis 50 (not shown). The guide LED 58 is attached to the front end of the light source attachment member 55a bent rearward, and is close to the rear end portion of the key 10. In addition, a transparent portion 17a for guide is provided at the rear end portion of the upper plate 11 of the key 10, and the upper surface 11a of the upper plate 11 corresponding to the upper side of the strength display LED 59 has a strength display transparency. A portion 17b is provided.

  Note that the keyboard device 8 of the present embodiment has the same control system (see FIG. 11) as the keyboard device 7 of the seventh embodiment described above, and is controlled in the same way, so that duplicate description is omitted. And

As mentioned above, according to the keyboard apparatus 8 of 8th Embodiment demonstrated, the effect | action and effect similar to the keyboard apparatus 7 of 7th Embodiment mentioned above can be acquired.
Furthermore, according to the keyboard device 8 of the eighth embodiment, since the guide LED 58 is attached to the tip of the bent light source attachment member 55a, the distance L1 between the guide LED 58 and the guide transmissive portion 17a is reduced. The rate of change in distance due to the movement of the key 10 during keystroke increases. For this reason, since the change of the light emission state of the transparent part 17a for a guide becomes large, the key 10 which was pressed can be visually recognized more easily.

  Although the preferred embodiments of the present invention have been described in detail above, the keyboard devices 1 to 8 according to the present invention are not limited to the above-described embodiments, and are within the scope of the gist of the present invention described in the claims. Various modifications and changes can be made within.

The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as in the scope of the claims initially attached to the application of this application.
<Claim 1>
A plurality of keys that are light transmissive and provided so as to be swingable in the keying direction;
A light source for irradiating the key with light,
A keyboard device, wherein a state of light emitted from a surface portion of the key is changed by changing a relative positional relationship between the key and the light source by a keystroke without changing a light emission state of the light source.
<Claim 2>
An optical member that is provided between the light source and the key and changes a color of light after being irradiated from the light source;
The color of light emitted from the surface portion of the key is changed by changing the relative positions of the light source, the key, and the optical member by keystroke without changing the emission color of the light source. The keyboard device according to claim 1.
<Claim 3>
The light source comprises one light emitting element,
The surface portion of the key has one permeable portion,
The optical member is composed of a plurality of optical members having different change characteristics that change the emission color of light emitted from the light source,
One of the plurality of optical members is disposed on a light path from the light emitting element to the transmissive portion when not keyed, and the optical member positioned on the light path is switched by keying. The keyboard device according to claim 2, wherein the color of light emitted from the transparent portion is changed.
<Claim 4>
The light source comprises one light emitting element,
The surface portion of the key has one permeable portion,
A shielding member capable of shielding light from the light emitting element,
Light emitted from the transmissive part by disposing the optical member on the light path from the light emitting element to the transmissive part and changing the position of the shielding member on the light path by keystroke. The keyboard device according to claim 2, wherein the color of the keyboard is changed.
<Claim 5>
The light source has a light emitting element that emits laser light,
The surface portion of the key has one permeable portion,
The optical member that guides the laser light to the transparent part, and
The keyboard apparatus according to claim 2, wherein the position of the optical member is changed by a keystroke to change a color of light emitted from the transparent portion.
<Claim 6>
For each key,
The light source having a plurality of light emitting elements;
A surface portion of the key having a plurality of transparent portions corresponding to the light emitting elements,
The keyboard device according to claim 1, wherein the amount of change in the distance between the light emitting element and the transmissive portion that changes due to keystroke differs for each combination of the light emitting element and the transmissive portion.
<Claim 7>
In the first combination of the light emitting element and the transmissive portion, the light emission intensity of the light emitting element can be electrically controlled regardless of the presence or absence of keystrokes,
In the second combination of the light-emitting element and the transmissive part, the light emission intensity of the light-emitting element is kept constant and the amount of change in the distance between the light-emitting element and the transmissive part that is changed by keystroke is changed. The keyboard device according to claim 6, wherein a color of light emitted from the transparent portion is changed.
<Claim 8>
First strength specifying means for specifying the key strength of the key to be pressed based on performance data;
A second strength specifying means for specifying the key strength of the key that is actually keyed;
Light emission for comparing the first key-pressing strength specified by the first strength specifying means with the second key-pressing strength specified by the second strength specifying means and causing the transmissive part to emit light at an intensity according to the comparison result. Control means, and
The light emission control by the light emission control means is performed on the light emitting element corresponding to the combination having the smaller amount of change in the distance between the light emitting element and the transmissive part caused by keystroke. The keyboard device according to claim 6.
<Claim 9>
A first light emitting function for emitting the key to be pressed based on performance data when not keyed;
A second light emitting function for emitting the key when a key is pressed,
The keyboard device according to any one of claims 1 to 8, wherein a light emission color by the first light emission function is different from a light emission color by the second light emission function.

1, 2, 3, 4, 5, 6, 7, 8 Keyboard device 10 Key 11a Upper surface (surface portion)
15 Permeability part 16a Rear surface (surface part)
17a Permeable part for guide (permeable part)
17b Permeability part for strength display (permeability part)
20a, 20b, 20c First optical member (optical member)
22a, 22b, 22c Second optical member (optical member)
25 Diffraction grating (optical member)
26 Shielding member 27, 29 Optical member 54 LED (light source, light emitting element)
56, 57 Laser light source (light source)
58 Guide LED (light source)
59 Intensity display LED (light source)
62 light emission control means 63 first intensity specifying means 64 second intensity specifying means

Claims (9)

A plurality of keys that are light transmissive and provided so as to be swingable in the keying direction;
A light source for irradiating the key with light,
A keyboard device, wherein a state of light emitted from a surface portion of the key is changed by changing a relative positional relationship between the key and the light source by a keystroke without changing a light emission state of the light source. An optical member that is provided between the light source and the key and changes a color of light after being irradiated from the light source;
The color of light emitted from the surface portion of the key is changed by changing the relative positions of the light source, the key, and the optical member by keystroke without changing the emission color of the light source. The keyboard device according to claim 1. The light source comprises one light emitting element,
The surface portion of the key has one permeable portion,
The optical member is composed of a plurality of optical members having different change characteristics that change the emission color of light emitted from the light source,
One of the plurality of optical members is disposed on a light path from the light emitting element to the transmissive portion when not keyed, and the optical member positioned on the light path is switched by keying. The keyboard device according to claim 2, wherein the color of light emitted from the transparent portion is changed. The light source comprises one light emitting element,
The surface portion of the key has one permeable portion,
A shielding member capable of shielding light from the light emitting element,
Light emitted from the transmissive part by disposing the optical member on the light path from the light emitting element to the transmissive part and changing the position of the shielding member on the light path by keystroke. The keyboard device according to claim 2, wherein the color of the keyboard is changed. The light source has a light emitting element that emits laser light,
The surface portion of the key has one permeable portion,
The optical member that guides the laser light to the transparent part, and
The keyboard apparatus according to claim 2, wherein the position of the optical member is changed by a keystroke to change a color of light emitted from the transparent portion. For each key,
The light source having a plurality of light emitting elements;
A surface portion of the key having a plurality of transparent portions corresponding to the light emitting elements,
The keyboard device according to claim 1, wherein the amount of change in the distance between the light emitting element and the transmissive portion that changes due to keystroke differs for each combination of the light emitting element and the transmissive portion. In the first combination of the light emitting element and the transmissive portion, the light emission intensity of the light emitting element can be electrically controlled regardless of the presence or absence of keystrokes,
In the second combination of the light-emitting element and the transmissive part, the light emission intensity of the light-emitting element is kept constant and the amount of change in the distance between the light-emitting element and the transmissive part that is changed by keystroke is changed. The keyboard device according to claim 6, wherein a color of light emitted from the transparent portion is changed. First strength specifying means for specifying the key strength of the key to be pressed based on performance data;
A second strength specifying means for specifying the key strength of the key that is actually keyed;
Light emission for comparing the first key-pressing strength specified by the first strength specifying means with the second key-pressing strength specified by the second strength specifying means and causing the transmissive part to emit light at an intensity according to the comparison result. Control means, and
The light emission control by the light emission control means is performed on the light emitting element corresponding to the combination having the smaller amount of change in the distance between the light emitting element and the transmissive part caused by keystroke. The keyboard device according to claim 6. A first light emitting function for emitting the key to be pressed based on performance data when not keyed;
A second light emitting function for emitting the key when a key is pressed,
The keyboard device according to any one of claims 1 to 8, wherein a light emission color by the first light emission function is different from a light emission color by the second light emission function.

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