JP2006107846A - Head-mounted luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head-mounted luminaire capable of transmitting a control signal only when the visual field direction of a user is directed to an object desired by the user. <P>SOLUTION: A lighting system of this application is mounted to the head of a user and adapted to illuminate a predetermined object desired by the user. The lighting system is characterized by comprising: a direction calculation means for calculating the visual field direction of the user; a determination means for comparing the visual field direction calculated by the direction calculation means with a target direction from the head of the user to the object to determine the positional relationship between the visual field direction and the target direction; and a control means for transmitting a control signal according to the determination result between the visual field direction and the reference direction in the determination means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a head-mounted lighting device, and more specifically, various devices and devices that are mounted on a user's head and detect the user's visual field direction, depending on the user's visual field direction. Provided is a head-mounted luminaire that makes it possible to perform the above control.

2. Description of the Related Art Conventionally, there are many head-mounted lighting fixtures that are mounted on the head of a human (user) to use and illuminate an object.
The advantage of such a luminaire is that the light beam from the light source is directed in the same direction as the user's visual field direction, and the illumination light is always directed in the visual field direction.
However, since the head-mounted lighting fixtures as described above always illuminate the direction of the user's visual field unless the user controls the power supply of the lighting, users wearing such lighting fixtures have a conversation with each other. In the case of performing, etc., there was an inconvenience that the lights of the lighting fixtures interfered with each other.

Moreover, the lighting fixture as described above is frequently used in the medical field. In particular, when this lighting device is used in a medical field, a medical operator (user) is used as lighting for operating a patient's operation part, or ophthalmology, otolaryngology, etc. Often used as illumination to examine an affected area of a patient.
Even in such a case, the conventional head-mounted illuminator is suitable as light during illumination of the surgical site, but when a medical operator confirms the biological value displayed on the examination monitor, etc. When the visual field is moved from the surgical site, it becomes a troublesome light for the surrounding medical surgeon. When symptom was described in the medical chart, the light of this lighting warped and was in the way.
That is, in the conventional head-mounted lighting fixture, when the target direction connecting the desired object from the user's head and the direction in which the user's visual field direction coincides with each other, it is a very suitable state. Otherwise, the situation was inconvenient.

In order to solve such a problem, as disclosed in Patent Document 1, an invention has been created that appropriately illuminates an illumination target (object) while suppressing the influence of a user's movement. The present invention detects a portion illuminated from image data to be illuminated by preliminarily photographing an illumination target, creating photographing information, and judging image information actually photographed and the photographing information. It is an invention that changes the direction of the light beam that the illumination has.
However, although the present invention can detect the site to be illuminated of the affected part during the medical action during the operation, it cannot control the illumination in the process from the start to the end of the operation.
In addition, since the present invention cannot be used unless photographing information is created in advance, there is a problem that cannot be dealt with in the case of an unexpected accident during surgery or an unpredictable state of an affected part.
Further, since each device such as an imaging means and an illumination direction changing means is required, it has a problem that it has to be a large-scale device, and in a simple examination act such as simply examining an affected part of a patient. However, it has a problem that it cannot be used easily and simply.

JP 2003-36704 A

  The present invention has been made in view of such circumstances, and the head-mounted illumination is capable of transmitting a control signal only when the visual field direction of the user is directed to an object desired by the user. Provide equipment.

The invention according to claim 1 is an illuminating device that is mounted on a user's head and illuminates a predetermined object desired by the user, and a direction calculating means that calculates the visual field direction of the user. Comparing the visual field direction calculated by the direction calculation means with a target direction from the user's head to the object, and determining a positional relationship between the visual field direction and the target direction; Provided is a head-mounted luminaire characterized by comprising control means for transmitting a control signal in accordance with a determination result of the visual field direction and the reference direction in the determination means.
According to a second aspect of the present invention, the direction calculation means calculates the visual field direction by detecting a movement distance from a preset reference position and / or a movement angle from a preset reference direction. A head-mounted lighting device according to claim 1 is provided.
According to a third aspect of the present invention, there is provided a head mounted lighting apparatus according to the first or second aspect, wherein a reference setting means for setting the reference position and / or reference direction is provided. .
The invention according to claim 4 is characterized in that the control signal from the control means controls the operation of the illumination means for illuminating the object. Provide equipment.
The invention according to claim 5 is characterized in that the control signal from the control means controls the operation of the photographing means for photographing the object. Provide equipment.
According to a sixth aspect of the present invention, there is provided photographing means for photographing the object and recording means for recording image information from the photographing means, and a control signal from the control means is recorded on the recording means together with the image information. A head mounted lighting apparatus according to any one of claims 1 to 3 is provided.
According to a seventh aspect of the present invention, the head-mounted lighting fixture includes an inspection device used by the user, and the inspection device moves in or out of the visual field of the user according to the control signal. The head mounted lighting apparatus according to any one of claims 1 to 3, wherein the head mounted lighting apparatus is provided.
The invention according to claim 8 is a notification means for visually and / or audibly notifying the user when the control signal by the control means is different or coincident with the visual field direction. Operation is controlled, The head mounted lighting fixture in any one of the Claims 1 thru | or 7 characterized by the above-mentioned is provided.
The invention according to claim 9 provides the head mounted lighting apparatus according to claim 1 or 2, wherein the direction calculating means calculates the visual field direction using a gyro sensor.
By providing these inventions, the above problems can be solved.

According to the first aspect of the present invention, since it is possible to calculate and judge the difference between the target direction to the set target object and the actual user's visual field direction, there are various types according to the visual field direction of the user. It is possible to provide a head mounted luminaire capable of transmitting a control signal.
By wearing this head-mounted lighting fixture, various devices and devices can be controlled depending on the viewing direction of the user.
According to the second aspect of the present invention, it is possible to provide a head mounted luminaire that can calculate the visual field direction of the user more accurately and more easily by setting the reference position and the reference direction.
According to the third aspect of the present invention, there is provided a head-mounted lighting device capable of changing a target object desired by a user immediately and providing a lighting target object by providing reference setting means. Can do.
According to the fourth aspect of the present invention, based on the visual field direction of the user, when the target direction of the target object matches the visual field direction, the illumination means is activated, and when the target direction and the visual field direction are different, the illumination is performed. It is possible to provide a head mounted luminaire capable of stopping the illumination of the means. Conversely, when the target direction of the target object matches the visual field direction, the illumination means can be stopped, and when the target direction and the visual field direction are different, the illumination means can be operated.
According to the fifth aspect of the present invention, based on the visual field direction of the user, when the target direction with the target object matches the visual field direction, the photographing means is activated, and when the target direction and the visual field direction are different, the photographing is performed. It is possible to provide a head-mounted lighting device that can stop photographing of the means.
According to the sixth aspect of the present invention, since the control signal is recorded in the image information photographed by the photographing means based on the visual field direction of the user, the importance of the image information is determined based on the presence / absence of the visual field direction of the user. It is possible to provide a head-mounted lighting device that can be used.
According to the seventh aspect of the invention, based on the user's visual field direction, when the target direction with the target object matches the visual field direction, the inspection apparatus is moved to the use position so that the user can use the target direction. It is possible to provide a head-mounted illuminator that can move the inspection apparatus to the preparation position when the viewing direction is different.
According to the eighth aspect of the present invention, the notification means provides a head-mounted luminaire that allows the user to know effectively and quickly that the viewing direction and the target direction are different or coincident. be able to.
According to the ninth aspect of the present invention, it is possible to provide a head mounted luminaire that can calculate the viewing direction extremely effectively and efficiently by using a gyro sensor. Further, by adopting the gyro sensor, it is possible to reduce the size of the head-mounted lighting fixture.

The best mode for carrying out the present invention will be described.
The head-mounted lighting fixture (1) according to the present invention includes a direction calculating means (11), a judging means (12), and a control means (13) as shown in FIG.
The head-mounted lighting device (1) according to the present invention can be used by additionally providing the conventional head-mounted lighting device with the functions described later. (1) Although detailed description of itself is omitted, the head-mounted lighting device (1) is provided along a fixing band (2) to be mounted on the user's head and the viewing direction of the user. It has an illumination part (3) that can irradiate light rays (see FIG. 2). The head-mounted lighting device (1) is usually mounted on the top of the head as shown in FIG. 2, but may be mounted near the face such as on the forehead or on the ear.
Although not shown in FIG. 2, a photographing unit such as a CCD camera (charge-coupled device camera) for photographing the viewing direction can be provided in the vicinity of the illumination unit (3).
The “field-of-view direction” indicates the direction of the field of view of the user, and is basically a direction substantially perpendicular to the user's face. The “target direction” is a direction from a user's head to a predetermined target desired by the user, and is a direction set in advance by the user, and the target has a thickness and a width. In some cases, the width can be appropriately given according to the thickness and width.

The direction calculation means (11) calculates the visual field direction of the user. This direction calculation means (11) is provided in the head-mounted lighting fixture (1), for example, on the left side of the head-mounted lighting fixture (1). In addition, the place where this direction calculation means (11) is provided is not specifically limited, What is necessary is just a place which can grasp | ascertain the motion of a head reliably.
This direction calculating means (11) reliably grasps the movement of the user's head (up and down, left and right, tilted neck) and calculates the amount of rotation. By calculating the rotational movement amount of the head in this way, the current visual field direction is calculated by moving from the preset visual field direction of the user (initially set reference direction) by the rotational movement amount. be able to.
A gyro sensor can be employed for the direction calculation means (11). Since the gyro sensor can detect the angular velocity with respect to the vertical axis and output it as a voltage value, the moving angle is calculated by integrating the detected angular velocity, so this moving angle is calculated from the initial angle (initial position). The current angular position can be detected by moving it by the amount.
In particular, the gyro sensor can detect three angular velocities of roll, pitch, and yaw, which are components indicating the movement of the user's head. By setting, it is possible to reliably detect the visual field direction of the user. Note that by setting the reference direction and calculating the respective rotational movement amounts of the roll angle, pitch angle and yaw angle, the visual field direction can be detected three-dimensionally as shown in FIG.
By using the gyro sensor in this way, it is possible to grasp the rotational movement of the user's head.

The direction calculating means (11) reliably grasps the movement of the user's head in space (the movement of the entire body of the user) and calculates the amount of movement. By calculating the amount of movement of the head in space (movement distance) in this way, by moving this amount from the predetermined position (initially set reference position) of the user by this movement distance, The moving position can be detected.
In order to calculate the movement distance in this way, an acceleration sensor can be further employed for the direction calculation means (11). The acceleration sensor can calculate the movement distance by time-integrating the acceleration by detecting the acceleration.
Thus, by using the acceleration sensor, the current moving position can be detected by calculating the moving distance in the user's space. As in the case of detecting the angular position, first, the reference position is set, and the movement distance with respect to each of the x-axis, y-axis, and z-axis is calculated, so that the movement position is set to 3 as shown in FIG. It can be detected dimensionally.
In this case, the direction calculating means (11) exemplifies a method of calculating the moving distance, but a laser measuring device or an optical motion tracker (for example, using HiBall-3100 manufactured by 3rd Tech) is used in the space. It is also possible to use a method of calculating the movement distance by grasping the position of the user in the space.

This direction calculation means (11) sets the reference position and / or reference direction, detects the movement angle and movement distance from these reference position and reference direction, and thereby determines the current movement position and visual field direction. These reference positions and reference directions are set by the reference setting means (14).
The reference setting means (14) resets a preset reference position and / or reference direction and resets the reference position and / or reference direction again.
By providing the reference setting means (14) in this way, the user can easily change the viewing direction when changing the viewing direction from one object to another. The reference setting means (14) is provided at a position where the user can appropriately promote the operation.

When using the head mounted lighting apparatus (1) according to the present invention, as described above, the reference position and / or the reference direction are set in advance, and the preset reference position and reference are used. For the direction, not only the reference position and reference direction for one object but also a plurality of reference positions and reference directions for a plurality of objects can be set.
In this way, when the reference position and the reference direction are not a single object but the positions and directions of a plurality of objects are set as the reference position and the reference direction, for example, when observing a plurality of affected parts, the affected part is observed. A plurality of affected areas can be easily observed without setting the reference position and the reference direction using the reference setting means (14) described above for each case.

The determination means (12) compares the visual field direction calculated by the direction calculation means (11) with the target direction from the user's head to the target, and determines the positional relationship between the visual field direction and the target direction. .
This target direction is a direction preset by the user as described above, and is a direction having a certain width. If the target direction has a certain width, as shown in FIG. 5A, the direction from the head position (A) of the user's head to the target (B) is set, The direction formed with the head position (A) as the origin corresponds to all the directions set so that the object (B) is present within the visual field range.
Specifically, as shown in FIG. 5A, the direction (E) formed with the head position (A) as the origin is within the range frame (C) that sufficiently contains the object (B). If there are intersections, all directions (E) correspond to this target direction.
Thus, the target direction is set with a certain width as described above. For example, as shown in FIG. 5A, a specific method for setting this width is to set the point coordinates of the four corners forming the range frame (C), and to determine the width from the user's head position (A). All directions connecting points existing in the range frame (C) surrounded by the four point coordinates can be set as target directions.
In addition, as shown in FIG. 5B, a predetermined angle (left or right) with respect to a direction (E) connecting the head position (A) and the center portion (D) of the object (B) in a left and right (or up and down) direction. α) is set, and the direction between the left and right angle differences (± α) of the direction (E) can be set as the target direction. The point coordinate position and the predetermined angle (α) described above are set as appropriate by the user.

Since the target direction as described above is set, the determination means (12) determines the positional relationship between the target direction and the visual field direction as described above. In this case, the determination means (12) determines that the target direction and the visual field direction match if the visual field direction exists within the target direction, and the visual field direction exists outside the target direction. It is determined that they do not match.
Thus, the positional relationship between the visual field direction and the target direction is determined by the determination means (12), and each command is sent to the control means (13) when the visual field direction and the target direction match or does not match. Will be sent.

In the case described above, the determination of the positional relationship between the target direction and the visual field direction is performed when determining whether the target direction and the visual field direction match (when determining whether the target direction includes the visual field direction). As explained above, the target direction itself is set in multiple stages, the target direction of the visual field direction is detected (existing) in the target direction, and the target direction including the visual field direction is detected. The corresponding positional relationship can also be determined.
The target direction to be set in multiple stages can be set by reducing the frame having the same shape as the range frame (C) and providing it concentrically after the range frame (C) is set as described above. For example, in FIG. 6A, after the range frame (C) is set, two frames (C ′, C ″) set in multiple stages are provided. Thus, there are three types of range frames (the first region (C1) surrounded by the frame (C ″), the second region (C2) surrounded by the frame (C ″) and the frame (C ′), and the frame (C ') And a third region (C3) surrounded by a frame (C).
By setting the first to third regions (C1, C2, C3), it is possible to detect in which region the visual field direction of the user exists, so that the visual field direction and the target direction can be detected in more detail. The positional relationship can be grasped.
In this way, when the target direction is multistaged, settings such as the number of multistages and the size of the range of each stage are appropriately set in advance by the user according to the use.
In the case shown in FIG. 6 (a), when the visual field direction exists in the first region (C1), it can be determined that the object (B) is surely viewed, It can also be determined that the possibility of viewing the object (B) is low as the distance from the center of the object (B) increases. By determining in this way, it can also be determined to measure the degree of concentration with respect to the user's object (B).

As described above, the multi-step target direction can set a plurality of regions by setting the range frame (C) and providing a frame having the same shape that is concentrically reduced. It is also possible to set a plurality of regions by setting a range frame surrounding the object and providing a plurality of frames having the same shape gradually concentrically expanding. The plurality of regions described above are set using the same shape enlargement / reduction of the range frame, but a method of dividing the range frame appropriately to form a plurality of regions can also be employed.
Further, as shown in FIG. 6B, a plurality of regions can be provided by providing a plurality of predetermined corners. In this case, the region set by the predetermined angle (± α) from the direction (E) is set as the first region (C1), and is set between the predetermined angle (α) and the predetermined angle (β). The region is set as the second region (C2), and the region set between the predetermined angle (β) and the predetermined angle (γ) is set as the third region (C3). In FIG. 6B, only a predetermined angle in one direction is shown. However, when a plurality of areas are set using the predetermined angle as described above, all of the Yaw angle, Roll angle, and Pitch angle are further set. Alternatively, a plurality of regions can be formed by combination.

As described above, the determination means (12) can determine the positional relationship between the visual field direction and the target direction. For example, the visual field direction exists in a positional relationship that matches the target direction, or the visual field direction is It can be determined in which area the target direction exists.
Thus, the positional relationship between the visual field direction and the target direction is determined, and a signal (command signal) corresponding to the determination result is transmitted to the control means (13) described later.

The control means (13) transmits a control signal corresponding to the command signal generated according to the positional relationship transmitted from the determination means (12). As described above, this control signal is transmitted according to the determination result of the positional relationship between the visual field direction and the target direction of the determination means (12).
The control signal includes a plurality of signals corresponding to the number of determinations of the positional relationship performed by the determination means (12), and the operation of the operation corresponding to the control signal is set in an apparatus or device that uses the control signal described later. It is preferable that
The number of control signals to be transmitted differs depending on the setting of the target direction. For example, when determining the positional relationship as to whether or not the visual field direction and the target direction match by the determination means (12), at least two patterns It is sufficient that the control signal exists. At this time, the control signal is a signal when the visual field direction and the target direction coincide with each other and a signal when the view direction and the target direction are different (not coincident). Further, when the target direction is multi-staged and has a plurality of regions, signals corresponding to the number of regions in which the viewing direction can exist are prepared. For example, in the case of FIG. 6A, since the region exists from the first to the third region, the viewing direction exists in these first to third regions and four types of regions having no attributes. Therefore, four types of control signals are prepared.
Furthermore, control signals are prepared in this way, and devices and devices that use these control signals are provided with control means for urging operations in accordance with these control signals.
In addition, although the apparatus and apparatus which utilize such a control signal are illustrated after this, these are not specifically limited, Various devices can be controlled using such a control signal. .

This control means (13) is connected so that operation | movement of the illumination means (15) which illuminates a target object can be controlled. The operation of the illumination means (15) is controlled by a control signal from the control means (13). For example, if the visual field direction matches the target direction, the operation is prompted to emit light, and if the visual field direction and the target direction are different, the light emission of the illumination is stopped. Thus, when the visual field direction is a direction different from the target direction, it is determined that the user is not viewing the target object, and illumination by the illumination unit (15) is unnecessary.
In addition, when the viewing direction matches the target direction, the lighting is prompted to stop, and when the viewing direction and the target direction are different, the lighting is prompted to emit light, so that a control signal is set. You can also.
When the target direction is multi-staged and a plurality of control signals can be used, the brightness and brightness of the illumination means (15) can be changed according to the transmitted control signal. .
The illuminating means (15) may be the illuminating unit (3) of the head mounted illuminating device (1) disposed on the user's head, or provided in an operating room where medical practice is performed. It may be a surgical light or the like.

The control means (13) is connected so that the operation of the photographing means (16) for photographing the object can be controlled. The operation of the photographing means (16) is controlled by a control signal from the control means (13). For example, if the viewing direction matches the target direction, shooting of the object is prompted by the shooting means (16), and if the viewing direction and the target direction are different, shooting of the shooting means (16) stops. Is done. Thus, when the visual field direction is a direction different from the target direction, it is determined that the user is not viewing the target object, and the shooting by the shooting unit (16) is unnecessary.
When the target direction is multi-staged and a plurality of control signals can be used, a plurality of photographing means (16) are installed in accordance with the transmitted control signal, and photographing means (for performing photographing operation) 16) can be set so that one or a plurality of photographing means (16) is selected from the plurality of photographing means (16) and photographing is performed. In addition, it is possible to prompt the user to change the operation of the photographing unit (16) itself. For example, the zoom of the photographing unit (16) can be changed or the brightness can be changed.
The photographing means (16) may be included in the head-mounted lighting device (1) so as to photograph the same direction as the visual field direction of the user, and can photograph the object. It may be a photographing device provided on the ceiling of the room or a surgical light camera set in the surgical light.

The control means (13) is connected to a recording means (17) for recording image information from the photographing means (16) for photographing the object. The recording means (17) records the control signal from the control means (13) in time series with the recorded image information.
As described above, the image information and the control signal are recorded in time series in the recording means (17). Therefore, when viewing the recorded image information again, the location to which the control signal is given is important. Judgment can be made.
When the target direction is multi-staged and a plurality of control signals can be used, the importance of the image recorded in the recording means (17) is set in detail according to the transmitted control signal and recorded. It can also be set to do.
If there are a plurality of users, each control signal from each user is recorded together with the image information to detect that a plurality of users are viewing the object. It is possible to know the importance in the case of surgery and the like.

When other devices are controlled by the control signal from the control means (13), the time interval for each control signal transmitted from the control means (13) is calculated, and this calculation interval is a predetermined time. If it is within the range, it can be set not to detect transmission of the control signal.
By providing the time interval at which the control signal is transmitted in this way, a temporal control mechanism can be provided, and it is possible to prevent detection of accidental head movement of the user.

  The head-mounted lighting fixture (1) includes an inspection device (18) used by a user, and the inspection device (18) moves in or out of the visual field of the user according to a control signal. Can be set to be able to. The inspection device (18) is not particularly limited, and is provided in the head-mounted lighting device (1), and is a device used when inspecting a patient and an affected part thereof. Any device that is used in front of the user's eyes, such as a direct image, inverted image, binocular inverted image), or slit lamp microscope, and that should be set to automatically retract when use is complete Can be adopted.

  The control means (13) is further connected to a notification means (19) for notifying the user visually and / or audibly when the control signal is different from the visual field direction and the target direction. By being connected to the notification means (19) in this way, it is possible to perform work without having to confirm whether or not the current visual field direction is the target direction.

As described above, the head-mounted lighting device (1) includes the direction calculation means (11), the determination means (12), the control means (13), and the reference setting means (14). The means (11 to 14) may be mounted in the head-mounted lighting fixture (1), or other means (12) as long as the direction calculating means (11) is mounted in the fixture (1). To 14) may be mounted in the device (1) or may be incorporated as another device.
Moreover, the connection of each means (11 thru | or 14) mentioned above can use wired or wireless suitably. In particular, the connection from the control means (13) to each means such as the illumination means (15), the photographing means (16), the recording means (17), the inspection means (18) and the notification means (19) is a wireless connection. It is preferable. This is because the wireless connection does not disturb the user's work and the space can be used widely and effectively.
The above is description of the structure of the head mounted lighting fixture (1) based on this invention.

Next, a method for detecting the viewing direction of the head-mounted lighting fixture (1) of the present invention will be described.
FIG. 7 shows a flowchart for detecting the viewing direction.
The user wears the head-mounted lighting device (1) (S1). At this time, the head-mounted lighting device (1) is mounted so that the visual field direction of the user and the light beam direction of the lighting unit (3) are the same.
In addition, when the light source of the illumination unit (3) is a light source that is diffused and irradiated in a radial manner such as an LED (light emitting diode), the central direction (center line direction) of the entire light beam is defined as the light beam direction Also good.
Next, the reference position and reference direction of the object are set (S2).
The user wearing the head-mounted lighting device (1) visually observes the object (so that the object exists in the visual field direction), and operates the reference setting means (14).
At this time, since the moving position can be calculated efficiently by setting the center position of the object as the origin of the three-dimensional space, the position of the object can be set as the origin.
Further, the position of the user's head at this time can be easily set because the position of the object is the origin. In addition, although a target object and a user's head position may be detected relatively, it becomes more accurate by utilizing a general three-dimensional coordinate system.
In this case, the reference direction is the direction from the reference position to the object.
When the target direction is set in multiple stages and has a plurality of areas, the center position of the target object is set as the origin, and the minimum range frame centered on the origin is provided. The frame can be easily set by enlarging the frame in multiple stages, setting a plurality of range frames (frames (C ′, C ″, etc.)) and setting an area surrounded by these range frames.

When the reference position and the reference direction are set, the movement angle and the movement distance from the reference position and the reference direction are detected using the acceleration sensor and the gyro sensor as described above (S3).
When the movement distance and the movement angle are detected, the current movement position and visual field direction are calculated based on these numerical values and the reference position and reference direction (S4).
For example, if the spatial position is defined by (x, y, z) and the direction is defined by (r, p, y), the reference position (1, 5, -3), the reference direction (30, -50, 120) ) And the movement distance (2, 2, 0) and the movement angle (35, 80, −10), the current movement position is (3, 7, −3), and the viewing direction (65 , 30, 110).
In this case, each component of the moving angle and each component of the moving distance are detected and calculated by the acceleration sensor and the gyro sensor, respectively.
In this way, the current movement position and visual field direction are detected from the reference position and reference direction.
If the movement position does not change greatly, the visual field direction can be detected with sufficient accuracy by detecting the movement angles of pitch and yaw among the movement angles. In this way, by fixing one element, it is possible to save the trouble of detecting and calculating the movement angle and movement distance.

Next, the Example using the head mounted lighting fixture (1) based on this invention is described.
In the first embodiment, a case where the user is a medical operator and the object (T) is an affected part of a patient will be described. Further, the head-mounted lighting fixture (1) is provided with illumination means (15) and photographing means (16) on the head of the equipment (1) and records image information taken by the photographing means (16). Recording means (17) is provided.
FIG. 8: shows the schematic block diagram using the head mounting lighting fixture (1) in 1st Example. FIG. 9 shows a conceptual diagram in the first embodiment.
FIG. 9A shows an operation when moving from the reference position (A) to the moving position (B). As shown in FIG. 9A, the user at the reference position (A) is not moving (is still in the reference position (A)). The reference directions are the same, and the visual field direction exists within the target direction (the portion surrounded by a single oblique line in the figure).
For this reason, the determination means (12) determines that the visual field direction and the target direction match and transmits a control signal. In this case, since the lighting means (15), the photographing means (16) and the recording means (17) are connected, the lighting means (15) is prompted to illuminate, and the photographing means (16) is prompted to take a picture. In the recording means (17), it is recorded that the image information is an important part (an index for photographing the important part is given).

Next, it is assumed that the user's head (H) has moved from the reference position (A) to the movement position (B) (see FIG. 9A).
At this time, the movement distance is detected by the acceleration sensor, and the movement angle is detected by the gyro sensor. Then, the current moving position and visual field direction are calculated using the moving distance, the moving angle, the reference position, and the reference direction. At the same time, the object direction at the movement position (B) is calculated from the position of the object (T) at the origin and the user's head (H). Since the direction (E) is calculated from the position of the moving position (B) and the origin of the object, as described in FIG. 5B, the angular difference (± It is preferred to rotate the direction (E) by α) to be the target direction).
In this case, as shown in FIG. 9 (a), at the movement position (B), since the visual field direction exists in the target direction toward the target (T), the determination means (12) It is determined that the viewing directions are “match”.
Then, as a continuation of the above state, the illuminating means (15) is urged to illuminate, the imaging means (16) is urged to shoot, and the recording means (17) records that it is image information of an important part. (An index indicating that an important part is being photographed is given).

Next, a case where the user's head (H) moves from the reference position (A) to the movement position (C) will be described (see FIG. 9B). A description of the state of the reference position (A) is omitted.
When moving to the moving position (B), the moving distance is detected by the acceleration sensor, and the moving angle is detected by the gyro sensor. Then, the current moving position and visual field direction are calculated using the moving distance, the moving angle, the reference position, and the reference direction. Further, as described above, the object direction at the movement position (C) is calculated. In this case, as shown in FIG. 9B, the viewing direction toward the object (T) at the movement position (C). Does not exist in the target direction, the determination means (12) determines that the target direction and the viewing direction are “different”.
Then, the control signal in the case of “different” is transmitted to the illumination means (15), the photographing means (16) and the recording means (17) by the control means (13). In this case, the illumination means (15) is prompted to stop the illumination, the photographing means (16) is prompted to stop photographing, and the recording means (17) is image information that the user does not see the object (T). Is recorded.

Next, a case where the reference position (A) is changed to the reference position (D) will be described (see FIG. 9C). A description of the state of the reference position (A) is omitted.
When moving to the moving position (D), the moving distance is detected by the acceleration sensor, and the moving angle is detected by the gyro sensor. Then, the current moving position and visual field direction are calculated using the moving distance, the moving angle, the reference position, and the reference direction.
However, it is assumed that the affected part is found accidentally at the movement position (D). In this case, the user sets the affected area as a new object (T ′) by the reference setting means (14).
As described above, by using the reference setting means (14), the user can appropriately set the object, so that it is possible to flexibly cope with an unexpected situation such as an unexpected accident.
When initial setting is performed, when a reference position and a reference direction are set in advance for a plurality of objects (T, T ′,...), Each object is visually inspected and a reference setting unit. Using (14), it is not necessary to set the reference position and / or reference direction each time the object is viewed.

In such a case in the first embodiment, there may be a plurality of users. Even in this case, each head-mounted lighting device ( It can be controlled independently by 1). Further, even when image information is recorded in the recording means (17), whether or not the object is visually observed for each user is recorded and added to the image information. It is understood that the more users visually observe, the more it is.
In the case of photographing a surgical operation such as medical practice, it is preferable to set the photographing means (16) so that its operation is not controlled by a control signal.

Next, a second embodiment will be described.
In the second embodiment, as in the first embodiment, the case where the user is a medical operator and the target object is an affected part of a patient will be described. The difference from the first embodiment has been described on the premise that the user moves in the first embodiment, but in the second embodiment, the user hardly moves.
FIG. 10 shows a conceptual diagram in the second embodiment. As shown in FIG. 10, the second embodiment shows a case where the user is observing the affected part (object) near the patient. In particular, the second embodiment is preferably used when the affected part is observed for a long time, such as when the affected part is operated. FIG. 10 shows a state in which the medical surgeon who is the user observes the object (T), and the object direction (R) exists in the range of the dotted line.

First, the user wears the head-mounted lighting device (1) on the head.
Next, the affected part that is the object is observed from the position where the operation is performed, and the reference direction is set. In this case, since the user hardly moves, the reference position can be fixed and does not need to be set.
When the reference direction is set, the target directions of the Yaw angle (horizontal direction) and the pitch angle (vertical direction) are set as shown in FIG.
As described above, the target direction (R) can be set within a predetermined angle (± α) from the center direction of each of the Yaw angle and the Pitch angle within a predetermined angle (± α), and the four corners of the range frame are determined. Then, the range frame can be set as the existence range in the target direction.
In the case of FIG. 11, by setting the range narrower than the shooting range (R1) of the shooting means (16) as the range in which the target direction exists, the shooting range (R1) is surely set as the visual field direction. Can do.

When the reference direction is set by the reference setting means (14), the operation is ready and the user starts the operation. At this time, the determination means (12) constantly makes a determination by comparing the visual field direction of the user with the target direction.
When it is determined that the visual field direction is in the target direction and the determination means (12) matches, a control signal in the case of matching is transmitted from the control means (13). In this case, this control signal prompts the illumination means (15) to illuminate, and prompts the recording means (17) to give the index information that the user is viewing.

When the visual field direction is outside the target direction and the determination means (12) is different (does not match), a control signal for a different case is transmitted from the control means (13). In this case, this control signal prompts the illumination means (15) to stop the illumination and give the recording means (17) index information that is not in a state that the user is viewing.
In order to accurately grasp the rotational movement of the user's head, it is set to calculate a time interval between a plurality of control signals, and the next control signal is transmitted at a time shorter than a predetermined interval. In such a case, the control signal can be ignored.

Next, a case where the target direction is multistaged and has a plurality of regions will be described.
First, in the initial setting, the user sets the target direction to be configured by a plurality of areas (see FIG. 6).
Next, a control signal is set when there is a viewing direction in each region. For example, when the determination means (12) determines that the viewing direction exists in the first region (C1) shown in FIG. 6, the first control signal is set to be transmitted. Similarly, when the second and third regions (C2, C3) and the first to third regions are present, and four types of control signals (for example, first to fourth control signals) are set. Prepare).
Next, this lighting fixture (1) is mounted and used. As described above, the visual field direction is first detected by the direction detection means (11).
Next, the positional relationship between the visual field direction and the target direction is determined. At this time, if it is determined that the visual field direction exists in the first area (C1), the determination means (12) notifies the control means (13) that the visual field direction exists in the first area. .
When the judging means (12) notifies the control means (13) that the viewing direction is in the first region (C1), the control means (13) is connected to each device (or each device) to which the first control signal is connected. To the device or each means).
Each device that has received the first control signal performs an operation set when the first control signal is received.
The above is the description of the operation of the present invention.

It is a schematic block diagram of the lighting fixture for head mounting | wearing. The state which mounted | wore the lighting fixture for head mounting | wearing is shown. An example of a three-dimensional display is shown. Another embodiment of a three-dimensional display is shown. Two methods of setting the target direction are shown. An example in which the target direction is provided in multiple stages will be described. A flowchart for detecting the viewing direction will be described. The schematic block diagram using the lighting fixture (1) for head mounting | wearing in 1st Example is shown. The conceptual diagram in 1st Example is shown. The conceptual diagram in 2nd Example is shown. It is the top view and side view in 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Head-mounted lighting fixture 11 ... Direction calculation means 12 ... Determination means 13 ... Control means 14 ... Reference setting means 15 ... Illumination means 16 .... Imaging means 17 ... Recording means 18 ... Inspection means 19 ... Notification means

Claims (9)

An illumination device that is mounted on a user's head and illuminates a predetermined object desired by the user,
Direction calculating means for calculating the visual field direction of the user;
A determination unit that compares the visual field direction calculated by the direction calculation unit with a target direction from the user's head to the target object and determines a positional relationship between the visual field direction and the target direction;
A head-mounted illuminator comprising control means for transmitting a control signal in accordance with a result of determination of the visual field direction and the reference direction in the determination means.   The direction calculation means calculates the visual field direction by detecting a movement distance from a preset reference position and / or a movement angle from a preset reference direction. Lighting equipment for head mounting.   3. The head mounted lighting apparatus according to claim 1, further comprising a reference setting unit for setting the reference position and / or reference direction.   The head mounted lighting apparatus according to any one of claims 1 to 3, wherein the control signal from the control means controls an operation of an illuminating means for illuminating the object.   The head mounted lighting apparatus according to claim 1, wherein the control signal from the control unit controls an operation of an imaging unit that images the object.   An imaging means for imaging the object and a recording means for recording image information from the imaging means are provided, and a control signal from the control means is recorded in the recording means together with the image information. Item 4. A head mounted lighting apparatus according to any one of Items 1 to 3.   The head-mounted lighting apparatus includes an inspection device used by the user, and the inspection device can move in or out of the visual field of the user by the control signal. The head mounted lighting apparatus according to any one of 1 to 3.   The control signal from the control means controls the operation of a notification means for visually and / or audibly notifying the user when the visual field direction and the target direction are different or coincident with each other. The head mounted lighting apparatus according to any one of claims 1 to 7.   The head-mounted illuminator according to claim 1 or 2, wherein the direction calculation means calculates the visual field direction using a gyro sensor.