JP2013190231A - Photometric device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photometric device capable of suppressing the degree of deterioration of photometric data accuracy of an optical sensor part due to light irradiated by a display part being received by the optical sensor part.SOLUTION: A photometric device 100 is provided with: an optical sensor part 10 for receiving light to acquire prescribed photometric data related to the received light; an optical sensor part mount unit 11 which mounts the optical sensor part 10 on a reference surface S; and a display part 20 for displaying the photometric data on a display surface D. The display surface S is formed at an angle θ1 in the direction in which the display surface D is warped with respect to a virtual reference surface Sa extending in the direction of the display part 20 along the reference surface S.

Description

  The present invention relates to a photometric device such as a color illuminance sensor for measuring a light environment, and more particularly to an improved technique for suppressing a degree of decrease in photometric data accuracy.

  A color illuminometer that can measure illuminance, correlated color temperature, color rendering properties, and the like is widely used as an apparatus (method) for measuring light environment such as light or sunlight by a lighting fixture. For example, in the technique disclosed in Patent Document 1, a portable color illuminance meter is used as a device that carries a color illuminance meter and enables measurement at an arbitrary place desired by the user without being tied to the installation location of the measuring instrument. Is provided.

  However, although it is portable, it is a portable size (69 mm (width) x 174 mm (height) x 35 mm (depth)) as an industrial measuring device, so it is large enough to carry at the daily life level. In other words, there is a problem that a dedicated control program is required to extract measurement data, and the work is complicated.

  Therefore, in order to solve the above-described problem and further reduce the size, the technology disclosed in Patent Document 2 includes a general-purpose interface unit of an electronic device such as a mobile phone, an ultraviolet sensor that measures ultraviolet intensity, A function card including a peripheral circuit unit for operating in association has been proposed.

JP 2000-205947 A JP 2003-006584 A

  However, in the technique of the above-mentioned Patent Document 2, the portability is increased and the convenience of data communication is improved by connecting the optical sensor and an electronic device such as a mobile phone. However, because the display unit such as liquid crystal in the electronic device and the optical sensor unit are physically installed in the vicinity, the measurement result of the optical sensor is affected by the light (backlight etc.) emitted from the display unit. There is a problem that an error occurs. Further, in the technique of Patent Document 2, since the measurement wavelength of the optical sensor is in the ultraviolet region, such a configuration is not considered. For this reason, the light sensor cannot perform photometric processing in a desired light environment such as light from sunlight or sunlight without being affected by light from the display unit of the electronic device. That is, since the light emitted from the display unit is received by the optical sensor unit, the photometric data accuracy of the optical sensor unit is degraded.

  The present invention has been made in view of such circumstances, and the optical sensor unit is configured such that light irradiated from the display unit is received by the optical sensor unit while ensuring portability at a daily life level. Provided is a photometric device capable of suppressing the degree of decrease in photometric data accuracy.

  In order to solve the above-described problems, the invention of claim 1 is provided with a light sensor unit that receives light and acquires predetermined photometric data relating to the received light, and the light sensor unit is mounted on a predetermined reference plane. An optical sensor unit and a display unit for displaying the measurement data on a predetermined display surface, and the predetermined reference surface is extended with respect to a virtual reference surface extending in the direction of the display unit along the predetermined reference surface. The display surface is formed with a predetermined angle in the direction of warping.

  According to the photometric device according to the present invention of claim 1, the optical sensor unit and the display unit are arranged on a virtual reference plane extending in the direction of the display unit along a predetermined reference plane on which the optical sensor unit is mounted. On the other hand, the predetermined display surface is formed with a predetermined angle exceeding “0” degree in the direction of warping.

  For this reason, as compared with the case where the predetermined display surface matches the virtual reference surface (“0” degree), the light sensor unit receives light (mainly visible light) from the display unit. The degree of decrease in photometric data accuracy can be suppressed.

  In addition, by being arranged at a predetermined angle, when the user uses the photometric device so that the predetermined reference plane matches the horizontal plane, it is displayed on the (i-1) display unit. (Ii-1) When the display unit also serves as the operation unit, it becomes easier to operate the display unit, and (iii-1) the optical sensor unit is not easily shielded by the user's body. Since it can be arranged at a position, the occurrence of measurement errors can be reduced.

  As a result, it is possible to ensure accuracy as an optical measurement sensor while ensuring portability at the daily life level.

It is a schematic diagram explaining the photometry apparatus which concerns on 1st Embodiment. It is a figure which shows the basic functional structural example of the photometry apparatus which concerns on 1st Embodiment. It is a schematic diagram explaining an oblique incident light characteristic. It is explanatory drawing which shows a problem about the conventional photometry apparatus. It is a figure explaining the structural example of the photometry apparatus 100 which concerns on 1st Embodiment. It is a figure explaining the structural example of 100 A of photometry apparatus which concerns on 2nd Embodiment. It is a figure explaining the structural example of 100 A of photometry apparatus which concerns on 2nd Embodiment. It is a figure explaining the angle restriction | limiting part. It is a figure explaining the structural example of the photometry apparatus 100B which concerns on 3rd Embodiment. It is a figure explaining rotation operation of angle variable part. It is a figure explaining angle restriction part 15B. It is a figure explaining angle restriction part 15B. It is a figure explaining angle restriction part 15B. It is a figure explaining angle restriction part 15B '. It is a figure explaining the structural example of 100C of photometry apparatus which concerns on 4th Embodiment. It is a figure explaining the modification of 100C of photometry apparatuses. It is a figure explaining the structural example of photometry apparatus 100D which concerns on 5th Embodiment. It is a figure explaining the modification of photometry apparatus 100D. It is a figure explaining the structural example of the photometry apparatus 100E which concerns on 6th Embodiment. It is a figure explaining the structural example of the photometry apparatus 100F which concerns on 7th Embodiment. It is a figure explaining the modification of the photometry apparatus 100F.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, parts having the same configuration and function are denoted by the same reference numerals, and redundant description is omitted in the following description. Further, the drawings are schematically shown, and the sizes, positional relationships, and the like of various structures in the drawings are not accurately illustrated. For convenience of explanation, three orthogonal XYZ axes are appropriately attached.

<1. First Embodiment>
<1-1. Outline of Appearance and Usage in Side Light Device>
FIG. 1 is a schematic diagram for explaining the appearance of the photometric device according to the first embodiment of the present invention. As shown in FIG. 1, the photometric device 100 receives light and obtains predetermined photometric data such as color illuminance relating to the received light, and the + Z direction as a measurement convex surface OB. The optical sensor unit mounting unit 11 has a bottom surface mounted on a reference surface S (XY plane), and an electronic device 21 having a display unit 20 for displaying the measurement data on a display surface D (details will be described later).

  As the electronic device 21, a general-purpose terminal that conforms to the USB standard, such as a smartphone, a mobile phone, a PDA, a game machine, or a personal computer, can be considered.

  The photosensor unit mounting unit 11 is a box-shaped sensor housing unit in which constituent elements (see FIG. 2) described later are accommodated, and the photosensor disposed on the reference plane S of the photosensor unit mounting unit 11. The card-type color illuminance sensor having the unit 10 is configured.

  Further, as described above, the photometric device 100 further includes the portable electronic device 21 that has the display unit 20 and has a predetermined information processing function. The photosensor unit mounting unit 11 is used for connection to the electronic device 21. The interface unit 12 is further provided. The electronic device 21 is connected to the interface unit 12 so as to be connected to the optical sensor unit mounting unit 11 so as to receive measurement data.

  As described above, the photometric device 100 includes the optical sensor unit mounting unit 11 and the electronic device 21 and constitutes a portable color illuminometer.

<1-2. Basic functional configuration of photometric device>
FIG. 2 is a diagram illustrating a basic functional configuration example of the photometric device 100 according to the first embodiment of the present invention. As shown in FIG. 2, the photosensor unit mounting unit 11 of the photometric device 100 has an interface unit 12, a photosensor unit 10, and a peripheral circuit unit 13 that is a circuit unit for operating them in association with each other. The electronic device 21 can be connected through the interface unit 12. In addition, the photosensor unit 10 includes a photosensor capable of measuring a desired color illuminance as a functional component, and is connected to the electronic device 21 via the interface unit 12 to provide the photosensor unit mounting unit 11. And the electronic equipment 21 side can exchange signals.

  The display unit 20 is composed of a liquid crystal display or the like, and displays the result of the measurement data sent from the optical sensor unit mounting unit 11. Alternatively, data analysis may be performed with the application software of the electronic device 21 and a display corresponding to the analysis result may be performed.

<1-3. General properties and assumptions of oblique incidence light characteristics>
As a principle for explaining the details of the photometric device 100 according to the first embodiment of the present invention, the general properties of the oblique incident light characteristics (light receiving angle characteristics) and the circumstances that accompany it, that is, the circumstances that have occurred in the prior art. Let me explain.

  FIG. 3 is a diagram for explaining the oblique incident light characteristics incident on the optical sensor. As shown in FIG. 3, the degree of color illuminance on the measurement surface is 100% when the angle of incident light is 0 degrees with respect to the normal of the measurement surface, and when the angle is 90 degrees with respect to the normal. Has a characteristic of 0%. That is, since the color illuminance of the measurement surface is proportional to the cosine of the angle of incident light, the measurement convex surface OB of the optical sensor unit 10 is also received in a relationship in which the response to obliquely incident light is proportional to the cosine.

  FIG. 4 is a diagram showing a conventional photometric device, which is common to the main components of the photometric device 100 shown in FIG. As shown in FIG. 4, light L <b> 1 to L <b> 4 is emitted from the display unit 20 of the electronic device 21. In the conventional photometric device, the display surface D of the display unit 20 and the reference surface S of the optical sensor unit 10 Are in the XY plane, that is, in a parallel relationship, the optical sensor unit 10 is affected by light from the display unit 20 (here, light L4 particularly close to an incident angle of 90 degrees).

  That is, when the light L4 emitted from the display unit 20 is received by the optical sensor unit 10, a value proportional to the cosine of the incident angle α of the light L4 is obtained as described in the oblique incident light characteristic of FIG. It will be added as photometric data. For this reason, an error is given to the color illuminance originally intended to be measured, and as a result, there is a problem that the desired color illuminance cannot be obtained correctly.

  Under such a background, in the present invention, the positional relationship between the display surface D of the display unit 20 and the reference surface S of the optical sensor unit 10 is improved as compared with the prior art, thereby suppressing the above errors. The photometric device of the present invention is configured to accurately measure the color illuminance with respect to desired light.

<1-4. Specific configuration>
FIG. 5 is a diagram illustrating a specific configuration of the photometric device 100 according to the first embodiment. As shown in FIG. 5, in the photometric device 100, the display unit is displayed with respect to a virtual reference surface Sa that extends in the direction of the display unit 20 along a reference surface S (predetermined reference surface) that is a mounting surface of the optical sensor unit 10. Twenty display surfaces D (predetermined display surfaces) are formed with an angle θ1 (predetermined angle) fixed in a warping direction. In other words, the angle θ1 is arranged at a position where the virtual display surface Da extending along the display surface D is rotated counterclockwise by the angle θ1 with respect to the virtual reference surface Sa. That is, the direction of warping is such that the normal line on the reference surface S with the optical sensor unit 10 and the normal line on the display surface D with the display unit 20 are separated from each other as the distance from each surface increases. It can also be said that it is the direction in which it is arranged. The plane Sa ′ shown in FIG. 5 is a plane parallel to the virtual reference plane Sa, and the plane Da ′ is a plane parallel to the virtual display plane Da.

  Here, the angle θ <b> 1 is set to an angle at which the light L <b> 1 to L <b> 4 (see FIG. 4) irradiated from the display unit 20 cannot be received by the optical sensor unit 10. In other words, the position corresponding to the angle θ1 is a position where none of the lights L1 to L4 irradiated from the display unit 20 is incident on the measurement convex surface OB of the optical sensor unit 10, and the oblique incident light characteristic shown in FIG. It means a position that does not correspond to a position where the incident angle is 0 degree or more and less than 90 degrees. That is, the minimum angle that the angle θ1 can take is considered to be an angle at which the optical sensor unit 10 and the display unit 20 can receive light by the optical sensor unit 10 only at an incident angle of 90 degrees from the display unit 20 at most. It is done. Specifically, if the virtual display surface Da when the virtual display surface Da is in contact with the measurement convex surface OB of the optical sensor unit 10 (the virtual display surface Da passes through the contact point Pc) is the virtual display surface Dac, the virtual display surface Dac is This is the position rotated counterclockwise by an angle (hereinafter referred to as “critical angle”) θc with respect to the virtual reference plane Sa. That is, at the critical angle θc, the optical sensor unit 10 and the display unit 20 are in a positional relationship that can be received by the optical sensor unit 10 only at an incident angle of 90 degrees. It can be said that the positional relationship is not affected by all of L4. For this reason, the angle θ1 is set with an angle equal to or greater than the critical angle θc.

  As described above, in the photometric device 100 according to the first embodiment, the optical sensor unit 10 and the display unit 10 are virtual reference planes extending in the direction of the display unit 20 along the reference plane S on which the optical sensor unit 10 is mounted. It is formed with a predetermined angle θ1 (≧ θc) exceeding “0” degrees in the direction in which the display surface D warps with respect to Sa (the direction opposite to the direction in which the display surface D and the optical sensor unit 10 approach each other). .

  Therefore, light (visible light) emitted from the display unit 20 is received by the optical sensor unit 10 as compared with the case where the display surface D matches the virtual reference plane Sa (“0” degree) (the conventional device in FIG. 4). The degree of decrease in the photometric data accuracy of the optical sensor unit 10 due to being performed can be suppressed. Even if the angle θ1 is smaller than the critical angle θc, an effect of suppressing the degree of decrease in the photometric data accuracy is obtained as compared with the conventional apparatus shown in FIG.

  Further, when the photometric device 100 is arranged and used by the user so that the reference plane S matches the horizontal plane, the display unit 20 is inclined at the angle θ1 from the horizontal plane by being arranged with the angle θ1. Therefore, (i-1) it is easy to visually recognize the data displayed on the display unit 20, and (ii-1) when the display unit 20 also serves as an operation unit, the display unit 20 can be easily operated and ( iii-1) Since the optical sensor unit 10 can be arranged at a position where it is difficult for the user's body viewing the display unit 20 to block light, the occurrence of measurement errors can be reduced.

  As a result, it is possible to ensure the accuracy as the optical measurement sensor while ensuring the portability at the daily life level and the convenience of data communication by using the electronic device 21.

  In addition, the angle θ1 is set to an angle (θ1 ≧ θc) at which the light emitted from the display unit 20 cannot be received by the optical sensor unit 10, so that the light irradiated from the display unit 20 is received by the optical sensor unit 10. By suppressing the degree of decrease in the photometric data accuracy of the optical sensor unit 10 due to this to “0”, highly accurate photometric data can be obtained.

  Further, the optical sensor unit mounting unit 11 is connected to the electronic device 21 having the display unit 20 via the interface unit 12, so that the combination structure of the optical sensor unit mounting unit 11 and the electronic device 21 can be used at a daily life level. High-precision photometric data can be obtained while realizing a portable configuration.

<2. Second Embodiment>
In the first embodiment, the angle θ1 formed by the display surface D (virtual display surface Da) and the virtual reference surface S is fixed, but in the second embodiment, the angle θ1 is rotatably provided.

  The schematic configuration and functions of the photometric device 100A in the second embodiment are different from those of the first embodiment in that the angle is variable between the interface unit 12 and the electronic device 21 so as to be integrated with the electronic device 21 and rotatable. The point is further provided. The remaining configuration and functions are the same as those of the apparatus of the first embodiment.

  FIG. 6 is a diagram for explaining a configuration example of a photometric device 100A according to the second embodiment, FIG. 6 (a) is a diagram showing an overall configuration of the photometric device 100A, and FIG. 6 (b) is an angle diagram. It is a figure which shows the variable part and the enlarged view in the periphery. As shown in FIG. 6A, the interface unit 12 </ b> A is connected to the electronic device 21 via the angle variable unit 14. In addition, the rotation operation of the angle variable unit 14 is performed by a display surface forming angle θ2 (an angle equivalent to the angle θ1 of the first embodiment) that is an angle of the virtual display surface Da ′ (display surface D) with respect to the virtual reference surface Sa ′. Specifically, the angle variable unit 14 rotates in a variable range around the rotation axis Cy2 in the Y-axis direction with a variable range described later. In addition, as shown in FIG. 6B, the angle variable unit 14 is provided with a signal line 12a for connecting the interface unit 12 and the electronic device 21, but the angle variable unit 14 performs a rotation operation. It is wired so that there is no problem.

  FIG. 7 is a diagram illustrating a specific example that can be set by a rotation operation by the angle varying unit 14 of the photometric device 100A in the second embodiment. As shown in FIG. 7, the angle variable unit 14 is configured so that “display surface forming angle θ2 = critical angle θc” in FIG. 7A, and FIG. 7B and FIG. 7C shows a configuration example in the case where “display surface forming angle θ2> critical angle θc” is set. Note that, in the angle variable unit 14 of the photometric device 100A according to the second embodiment, the angle up to the display surface formation angle θ2 shown in FIG. 7C is the angle variable angle (hereinafter referred to as “limit angle”) θ2m. It becomes. The limit angle is determined by the influence of the connection state of the electronic device 21 with the optical sensor unit mounting unit 11 and the like.

  Thus, the angle variable unit 14 performs a rotation operation that enables the display surface formation angle θ2 to vary, and the variation range of the rotation operation is a range that is not less than the critical angle θc and not more than the limit angle θ2m.

<2-1. Angle constraint part>
Subsequently, a modification of the photometric device 100A in the second embodiment will be described below. In the photometric device 100A ′ according to the second embodiment, an angle restriction unit that defines the minimum angle of the display surface formation angle θ2 ′ that can be set by the rotation operation of the angle variable unit 14 is further provided.

  FIG. 8 is a diagram illustrating a specific example of the photometric device 100A ′ in the second embodiment. As shown in FIG. 8A, the angle restricting portion 15 is configured to protrude from the side surface of the optical sensor portion mounting unit 11 in the direction in which the display portion 20 is located. That is, the rotation operation in the direction in which the display surface forming angle θ2 ′ is smaller than the critical angle θc is prevented by the angle restricting unit 15 coming into contact with the side surface of the electronic device 21. Here, since the angle restricting unit 15 is provided so as to restrict the rotation operation at a position where “display surface forming angle θ2 ′ = critical angle θc”, “display surface forming angle θ2 ′ <critical angle θc”. ”And is not affected by all the light L emitted from the display unit 20. Therefore, in the second embodiment, the state that the display surface formation angle θ2 ′ becomes smaller than the critical angle θc as shown in FIG. 8B is not realized when the angle restricting portion 15 exists. .

  In FIG. 8A, the angle restriction unit 15 restricts the minimum angle as the critical angle θc. However, the angle restriction unit 15 does not need to be the critical angle θc, and is an angle that can be configured, and “critical angle θc ≦ The relationship of “minimum angle ≦ limit angle θ2m” may be satisfied.

  As described above, in the photometric device 100A (100A ′) according to the second embodiment, the angle varying unit 14 rotates the display surface forming angle θ2 (θ2 ′) in which the display surface D is an angle with respect to the virtual reference surface Sa. Therefore, when the optical sensor unit 10 exists at a position lower than the user's line-of-sight direction, the display surface formation angle θ2 (θ2 ′) is set to be relatively small, and the optical sensor unit 10 is positioned higher than the line-of-sight direction. If it exists, the display surface formation angle θ2 (θ2 ′) can be set relatively large. Thereby, visibility improves and the operativity also improves when the display part 20 serves as an operation part.

  When the user does not measure, the display surface formation angle θ2 (θ2 ′) is made as small as possible, so that the combined structure of the electronic device 21 and the photosensor unit mounting unit 11 is not bulky. More improved.

  Furthermore, since the display surface forming angle θ2 ′ is not less than or equal to the minimum angle due to the provision of the angle restricting portion 15, the minimum angle is set to an angle that does not affect the measurement data accuracy at the time of measurement. It is possible to reduce errors and measurement errors in advance.

<3. Third Embodiment>
In the second embodiment, the angle variable unit 14 is provided between the interface unit 12A and the electronic device 21, but in the third embodiment, it is provided in the optical sensor unit mounting unit. FIG. 9 is a diagram illustrating a specific configuration example of the photometric device 100B according to the third embodiment.

  Regarding the schematic configuration and function of the photometric device 100B in the third embodiment, the difference from the first embodiment is that the photosensor unit mounting unit 11B is integrated with the photosensor unit 10 and is provided so as to be rotatable. 9B) is further provided. The remaining configuration and functions are the same as those of the apparatus of the first embodiment.

  As shown in FIG. 9, the optical sensor unit mounting unit 11 </ b> B includes a main body unit 11 </ b> B- 1, and a “U” -shaped support unit 11 </ b> B- 2 in plan view in which an opening is formed between one end and the other end. The main body 11B-1 is provided between the one end and the other end of the support portion 11B-2 so as to be rotatable via the angle variable portion 14B. The rotation operation of the angle varying unit 14B is performed with the Y-axis direction as the rotation axis, and along with this rotation operation, the display surface formation angle θ3 (the angle θ1 and the display surface formation angle θ3) is the angle with respect to the virtual reference surface Sa. Equivalent angle) changes. It should be noted that the angle variable unit 14B and the optical sensor unit 10 can be rotated in a fluctuation range described later, with the rotation axis Cy3 in the Y-axis direction being the center.

  FIG. 10 is a diagram illustrating the rotation operation of the angle variable unit 14B. As shown in FIG. 10, it is a configuration example in the case where “display surface forming angle θ3 = critical angle θc” is set in FIG. The angle θ3 can be set with an angle equal to or greater than the critical angle θc. Further, by performing the angle regulation described later, the display surface forming angle θ3 becomes smaller than the critical angle θc and has a negative angle with respect to the virtual reference surface Sa as shown in FIG. It can be avoided. FIG. 10C shows a configuration example in the case where “display surface forming angle θ3> critical angle θc” is set by the angle variable unit 14B, and the display unit 20 is set on the back surface with respect to the optical sensor unit 10. It is a state that has been. In this state, the display unit 20 and the optical sensor unit 10 can be installed in a front-back relationship where the positional relationship is 180 degrees different.

<3-1. Angle constraint part>
Subsequently, a modification of the photometric device 100B in the third embodiment will be described below. The photometric device 100B ′ according to the third embodiment further includes an angle restriction unit that defines the minimum angle of the display surface formation angle θ3 ′ that can be set by the rotation operation of the angle variable unit 14B.

  FIG. 11 is a diagram illustrating a specific configuration example of the photometric device 100B ′ according to the third embodiment. FIG. 11A illustrates a main part of the photometric device 100B ′, and FIG. 11B illustrates an optical sensor unit. The enlarged view of the joint surface (dashed line area | region RG of Fig.11 (a)) of mounting unit 11B 'and angle variable part 14B' is shown. As shown in FIG. 11 (b), the angle constraining portion 15B includes the recess regions 15B1 to 15B4 and the XZ cross section of the angle variable portion 14B ′ in the XZ cross section of the support portion 11B′-2 of the optical sensor unit mounting unit 11B ′. Is provided with a convex region 15B0. That is, the angle θ3 is fixed (restricted) by meshing with the convex region 15B0 on the angle variable portion 14B ′ side at any position of the concave regions 15B1 to 15B4 on the support portion 11B′-2 side.

  12 and 13 are diagrams illustrating the angle restricting unit 15B. The display surface forming angle θ3 ′ of the photometric device 100B ′ in FIGS. 12A and 12B corresponds to the display surface forming angle θ3 of the photometric device 100B in FIGS. 10A and 10C. doing.

  When it is desired to set the display surface forming angle θ3 ′ to the critical angle θc, as shown in FIG. 12A, the convex region 15B0 of the angle variable portion 14B ′ is replaced with the concave region 15B1 of the support portion 11B′-2. Fix at the position where it meshes with. Thereafter, when it is desired to set the display surface formation angle θ3 ′ to the limit angle θ3m, the meshing and fixing of the convex region 15B0 and the concave region 15B1 in FIG. After rotating 14B ′, as shown in FIG. 12B, the convex region 15B0 of the angle variable portion 14B ′ is fixed at a position where it meshes with the concave region 15B4 of the support portion 11B′-2.

  However, when the display surface formation angle θ3 ′ is made smaller than the critical angle θc, as shown in FIG. 13, the convex region 15B0 of the angle variable portion 14B ′ is replaced with the concave region 15B1 of the optical sensor unit mounting unit 11B ′. Beyond that, it rotates in a direction opposite to the direction of the recessed area 15B2 (arrow AR), but it cannot be fixed because there is no recessed area at that position.

  As described above, since the convex concave portion does not mesh with the support portion 11 </ b> B′- 2 except the portion (the concave regions 15 </ b> B <b> 1 to 15 </ b> B <b> 4) where the angle restricting portion 15 </ b> B restricts the angle, it cannot be fixed. That is, the user can physically rotate the optical sensor unit 10 to an inappropriate position (for example, the position shown in FIG. 13), but the convex and concave portions do not mesh with each other, so that the user can fix the optical sensor unit 10 at that position. Can not.

  FIG. 14 is a diagram illustrating a modification of the angle restriction unit 15B. As shown in FIG. 14, the angle restricting portion 15B ′ is provided with a protruding portion 30 in the main body portion 11B ″ -1, and the protruding portion 30 is not physically moved to a display surface forming angle θ3 ″ below the critical angle θc. In order to make it possible, the object 40 is provided on the support portion 11B ″ -2 of the optical sensor portion mounting unit 11B ″. As a result, the rotation of the main body 11B ″ -1 other than the minimum angle of the display surface formation angle θ3 ′ is prevented by the protruding portion 30 being caught by the object 40, so the display surface formation angle θ3 ″ is the critical angle. It is not formed below θc.

  In addition, although the angle restriction | limiting part 15 and 15 'in FIGS. 11-14 applied restriction | limiting as the critical angle (theta) c, the minimum angle does not need to be the critical angle (theta) c, and is a possible angle | corner, "critical angle The relationship of “θc ≦ minimum angle ≦ limit angle θ3m” may be satisfied.

  Further, the angle constraint method is not limited to the above-described angle constraint portions 15 and 15 ′, and it is sufficient that the display surface formation angles θ3 ′ and θ3 ″ can be rotated within a range in which the angle can be varied by the critical angle θc or more. Any method may be used as long as it is restricted so that it cannot be physically moved, or it may be restricted so that it cannot be fixed outside this range.

  As described above, in the third embodiment, the angle varying unit 14B changes the display surface forming angle θ3 (θ3 ′, θ3 ″) in which the display surface D (virtual display surface Da) is an angle with respect to the virtual reference surface Sa. Therefore, when the optical sensor unit 10 exists at a position lower than the user's line-of-sight direction, the display surface formation angle θ3 (θ3 ′, θ3 ″) is set to be relatively small. In the case where the display surface exists at a position higher than the line-of-sight direction, the display surface formation angle θ3 (θ3 ′, θ3 ″) can be set relatively large. In the case where it also serves as an operation unit, the operability is improved.

  Further, when the user does not measure, the combined structure of the electronic device 21 and the optical sensor unit mounting unit 11B (11B ′, 11B ″) can be obtained by reducing the display surface forming angle θ3 (θ3 ′, θ3 ″) as much as possible. Since the structure is not bulky, the portability is further improved.

  In addition, since the angle variable unit 14B is provided in the optical sensor unit mounting unit 11B (11B ′, 11B ″), it is not subject to the restrictions of the electronic device 21 having the display unit 20, so that the set angle range ( The predetermined range) can be set widely.

  Furthermore, since the display surface forming angle θ3 does not become the minimum angle or less by providing the angle restricting portion 15B (15B ′), the minimum angle is set to an angle that does not affect the measurement data accuracy at the time of measurement. It is possible to reduce errors and measurement errors in advance.

<4. Fourth Embodiment>
In the second and third embodiments, the rotation axes Cy2 and Cy3 of the angle variable portions 14 and 14B are rotating around the Y-axis direction, but in the configuration of the fourth embodiment, the X-axis direction is the center. Rotating motion. FIG. 15 is a diagram illustrating a specific configuration example of a photometric device 100C according to the fourth embodiment.

  The schematic configuration and the function of the photometric device 100C in the fourth embodiment are different from those in the second embodiment in that the angle variable section 14C is changed to the angle variable section 14C, thereby changing the angle as shown in FIG. The rotating operation of the section 14C is changed to an operation that can rotate 360 degrees around a rotation axis Cx4 parallel to the display surface D (virtual display surface Da). The remaining configuration and functions are the same as those of the apparatus of the first embodiment.

  As shown in FIG. 15, the rotation operation of the angle variable unit 14 </ b> C is an operation that rotates in the direction in which the angle θ <b> 4 changes (arrow ARx <b> 4). In addition, the angle variable unit 14C is provided so as to be connected to the interface unit 12C so as to be able to perform the above-described rotation operation, and is integrated with the interface unit 12C in the range of “0 ≦ θ4 ≦ 360 degrees” around the rotation axis Cx4 in the X-axis direction. Can be rotated. Therefore, the angle θ4 can be set to an angle at which the light emitted from the display unit 20 cannot be received by the optical sensor unit 10, for example, 180 degrees (see FIG. 15).

<4-1. Modified Example of Angle Variable Unit 14C>
FIG. 16 is a diagram illustrating a modification of the photometric device 100C according to the fourth embodiment. As shown in FIG. 16, the optical sensor unit mounting unit 11C ′ has a main body 11C′-1 and a support 11C′-2 as main parts. An angle variable portion 14C ′ extends in the X-axis direction from the center portion of the support portion 11C′-2. A main body 11C′-1 is rotatably provided in the angle variable portion 14C ′.

  The angle variable unit 14C 'in the photometric device 100C' according to the fourth embodiment is different from the angle variable unit 14C in that the angle variable unit 14C 'can rotate independently of the interface unit 12C'. Therefore, the angle θ4 ′ can be set to an angle at which the light emitted from the display unit 20 cannot be received by the optical sensor unit 10, for example, 180 degrees (see FIG. 16).

  As described above, in the fourth embodiment, the rotation operation of the angle variable unit 14C (14C ′) can be rotated 360 degrees around the rotation axis Cx4 (Cx4 ′) parallel to the display surface D (virtual display surface Da). Since it is operation | movement, it can set to the angle which the light irradiated from the display part 20 cannot light-receive in the optical sensor part 10, for example, 180 degree | times. As a result, highly accurate photometric data is obtained by suppressing the degree of decrease in photometric data accuracy of the optical sensor unit 10 due to the light emitted from the display unit 20 being received by the optical sensor unit 10 to “0”. be able to.

  In addition, the optical sensor unit 10 can be arranged on the back surface with respect to the display unit 20 by a rotation operation. When measuring the optical sensor unit 10 upward on the user's head, the user can (i- 3) The measurement data displayed on the lower display unit 20 can be more easily seen. (Ii-3) When the display unit 20 also serves as the operation unit, the display unit 20 can be operated more easily. iii-3) Since the optical sensor unit 10 can be disposed at a position where it is not shielded by the user's body, the generation of measurement errors can be further reduced.

<5. Fifth Embodiment>
FIG. 17 is a diagram illustrating a specific configuration example of a photometric device 100D according to the fifth embodiment. The schematic configuration and function of the photometric device 100D according to the fifth embodiment are different from those of the first and second embodiments in that the photosensor unit mounting unit 11 has a horizontal plane Hs such as a desk as shown in FIG. Position adjustment in which the position of the photometric device 100D can be set so that the reference plane S is parallel to the horizontal plane Hs when the optical sensor unit 10 is arranged on the (XY plane) so as to be upward (+ Z direction). It is a point further provided with a part 16. The remaining configuration and functions are the same as those of the photometric device 100 of the first embodiment.

  The standing position adjustment unit 16 supports the entire photometric device 100D together with the bottom edge portion of the electronic device 21, and the reference plane S of the photometric device 100D having an angle θ1 (= θc) is parallel to the horizontal plane Hs. Has a forming height of

  In addition, when the fifth embodiment is applied to the photometric devices 100A and 100B of the second and third embodiments, one of the realizable display surface forming angles θ2 (θ3) (a set angle that can be fixed is desirable). At the time of setting, when the optical sensor unit 10 is arranged on the horizontal plane Hs, the reference surface S can be in a positional relationship parallel to the horizontal plane Hs by the standing position adjustment unit 16.

  As described above, by providing the position adjustment unit 16 in the standing state in which the reference plane S of the optical sensor unit mounting unit 11 and the horizontal plane Hs are in a parallel positional relationship, the user can place the position on the horizontal plane Hs such as a desk. When the photometric device 100D is placed and used, the horizontal illuminance can be accurately measured.

<5-1. Position adjustment storage section>
Next, FIG. 18 is a diagram illustrating a modification of the photometric device 100D according to the fifth embodiment. As shown in FIG. 18, in the photometric device 100D ′ according to the fifth embodiment, in the optical sensor unit mounting unit 11, the position adjusting unit 16 is stored in the optical sensor unit mounting unit 11 from the standing state. Further, a position adjustment storage portion 17 is further provided for storing the position adjustment portion 16 in the storage state.

  As described above, the position adjustment unit 16 can change the position from the standing state to the storage state, and includes the position adjustment storage unit 17 that stores the position adjustment unit 16 in the storage state in the optical sensor unit mounting unit 11. When a person does not use the position adjustment unit 16, the volume adjustment occupied by the position adjustment unit 16 can be made compact by allowing the position adjustment unit 16 to be stored in the position adjustment storage unit 17. Portability can be maintained.

<6. Sixth Embodiment>
FIG. 19 is a diagram for explaining a specific configuration example of the photometric device 100E according to the sixth embodiment, and FIG. 19A is a view of the XZ cross section of the photosensor unit mounting unit 11E and its periphery viewed from the −Y direction. FIG. 19B is a view of the optical sensor unit mounting unit 11E and its surrounding XY plane as seen from the + Z direction. As shown in FIG. 19, the schematic configuration and function of the photometric device 100E in the sixth embodiment are different from those of the first embodiment in that the photosensor unit mounting unit 11E holds the photosensor unit 10 and has a reference plane. The automatic horizontal position adjusting mechanism 18 that automatically adjusts the position so that S is parallel to the horizontal plane Hs (XY plane). The remaining configuration and functions are the same as those of the apparatus of the first embodiment.

  As shown in FIG. 19A, the automatic horizontal position adjusting mechanism 18 is configured integrally with the optical sensor unit 10 via the reference plane S, and is provided inside the optical sensor unit mounting unit 11E. Here, the automatic horizontal position adjusting mechanism 18 is configured based on the same principle as that of a generally known toy “rising up”. That is, in the photometric device 100E, the weight 18a (see FIGS. 19A and 19B) at the bottom of the automatic horizontal position adjusting mechanism 18 is the center of gravity, and the reference plane S is parallel to the horizontal plane Hs. Thus, the position can be automatically adjusted.

  As described above, since the sixth embodiment further includes the automatic horizontal position adjustment mechanism 18, the user can accurately measure the horizontal plane illuminance without being aware of the horizontal plane Hs. When measuring the horizontal illuminance, only the setting error of the automatic horizontal position adjustment mechanism 18 is given as an installation error, so that it is possible to reduce measurement errors and measurement errors including installation errors in advance.

  Needless to say, the automatic horizontal position adjusting mechanism 18 can be integrated with the optical sensor unit 10 of the photometric devices 100A to 100D of the second to fifth embodiments.

<7. Seventh Embodiment>
FIG. 20 is a diagram for explaining a specific configuration example of the photometric device 100F according to the seventh embodiment, and FIG. 20A is a diagram when the XY plane of the photometric device 100F is viewed from the + Z direction, and FIG. b) is a view of the XZ section of the photometric device 100F as viewed from the -Y direction. As shown in FIG. 20, the schematic configuration and function of the photometric device 100F according to the seventh embodiment are different from those of the first embodiment in that the photosensor unit mounting unit 11F is close to the photosensor unit 10 and the display unit 20F. It is a point to carry further. The remaining configuration and functions are the same as those of the apparatus of the first embodiment.

  That is, in the photometric device 100 according to the first embodiment, the electronic device 21 is connected to the interface unit 12 to be connected to the optical sensor unit mounted unit 11 so as to be able to receive measurement data. In such a photometric device 100F, the optical sensor unit mounting unit 11F is mounted close to the optical sensor unit 10 without using the interface unit 12, and the display by the display unit 20F is mounted on the optical sensor unit mounting unit 11F itself. A function is provided (see FIG. 20A).

  Specifically, as shown in FIG. 20B, in the photometric device 100F, the angle θ7 in the direction in which the display surface DF warps with respect to the virtual reference surface Sa extending in the direction of the display unit 20F along the reference surface S. Formed with. In other words, the angle θ7 is arranged at a position where the virtual display surface DFa extending along the display surface DF is rotated counterclockwise by the angle θ7 with respect to the virtual reference surface Sa. Here, since the angle θ7 is set to the critical angle θc, it is not affected by the light emitted from the display unit 20F (see FIG. 20B). Note that the angle θ7 does not have to be the critical angle θc, but is an angle that can be configured, and only needs to satisfy the relationship of “angle θ7 ≧ critical angle θc”.

<7-1. Modified example of photometric device 100F>
Next, FIG. 21 is a diagram for explaining a modification of the photometric device 100F in the seventh embodiment, and FIG. 21A is a diagram of the XY plane of the photometric device 100F ′ viewed from the + Z direction. (B) is the figure which looked at the XZ cross section of photometry apparatus 100F 'from the -Y direction. As shown in FIG. 21, the photometric device 100F ′ according to the seventh embodiment has a configuration in which an interface unit 12F is further provided in the optical sensor unit mounting unit 11F ′. The photosensor unit mounting unit 11F of the photometric device 100F and the photosensor unit mounting unit 11F ′ of the photometric device 100F ′ have the same configuration and function except for the interface unit 12F. Thereby, the optical sensor unit mounting unit 11F ′ can be connected to the electronic device 21 via the interface unit 12F (see FIG. 21A). At this time, the display surface DF of the display unit 20F of the optical sensor unit mounting unit 11F ′ and the display surface D of the display unit 20 of the electronic device 21 are in a parallel positional relationship.

  As a specific configuration, as shown in FIG. 21B, an angle θ7 ″ at which the display surface D (virtual display surface Da) of the display unit 20 in the electronic device 21 warps with respect to the virtual reference surface Sa is Therefore, the angle θ7 ′ is not affected by the light emitted from the display unit 20 of the electronic device 21 as well as the display unit 20F (see FIG. 21B). “” Does not need to be the critical angle θc, but is an angle that can be configured, as long as the relationship “angle θ7” ≧ critical angle θc ”is satisfied.

  As described above, in the seventh embodiment, the optical sensor unit mounting unit 11F (11F ′) is further mounted with the display unit 20F in the vicinity of the optical sensor unit 10 so as to be portable at a daily life level alone. High-precision photometric data can be obtained while realizing the configuration.

<8. Modification>
As mentioned above, although embodiment of this invention has been described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

  * In the present embodiment, the photometric devices 100, 100A to 100F are described separately for each embodiment so as to be implemented individually, but these individual functions may be combined with each other as long as they do not contradict each other.

  * The unit equipped with the optical sensor unit according to the present embodiment has a function (display device, speaker, printer, external transmission function (telephone, LAN, Internet network) provided with a general-purpose terminal in addition to the intended light intensity measurement function. Connection) is also possible.

DESCRIPTION OF SYMBOLS 10 Optical sensor part 11 Optical sensor part mounting unit 12 Interface part 13 Peripheral circuit part 14 Angle variable part 15 Angle restriction part 16 Position adjustment part 17 Position adjustment accommodating part 18 Automatic horizontal position adjustment mechanism 20 Display part 21 Electronic device 100,100A- 100F Photometric device D Display surface Da, Dac, Da ', Dac' Virtual display surface S Reference surface Sa, Sa 'Virtual reference surface

Claims (11)

An optical sensor unit that receives light and acquires predetermined photometric data relating to the received light; and
An optical sensor unit mounting unit for mounting the optical sensor unit on a predetermined reference surface;
A display unit for displaying the measurement data on a predetermined display surface;
With
It is formed with a predetermined angle in a direction in which the predetermined display surface warps with respect to a virtual reference surface extending in the direction of the display unit along the predetermined reference surface.
Photometric device. The photometric device according to claim 1,
The predetermined angle includes an angle at which light emitted from the display unit cannot be received by the optical sensor unit,
Photometric device. The photometric device according to claim 1 or claim 2,
The optical sensor unit mounting unit further mounts the display unit in proximity to the optical sensor unit,
Photometric device. The photometric device according to claim 1 or claim 2,
A portable electronic device equipped with the display unit and having a predetermined information processing function,
The photosensor unit mounting unit further includes an interface unit for connection with the electronic device,
The electronic device is connected to the interface unit so that the optical sensor unit mounting unit and the measurement data from the optical sensor unit are receivably coupled.
Photometric device. The photometric device according to claim 4,
Between the interface unit and the electronic device, further includes an angle variable unit that is provided integrally and rotatable with the electronic device, the interface unit is connected to the electronic device via the angle variable unit,
The rotation operation of the angle variable unit includes an operation in which the predetermined display surface rotates in a direction in which a display surface forming angle that is an angle with respect to the virtual reference surface changes, and the predetermined range includes the predetermined angle by the rotation operation. The angle can be changed with
Photometric device. The photometric device according to claim 1,
The optical sensor unit mounting unit further includes an angle variable unit provided so as to be rotatable integrally with the optical sensor unit,
The rotation operation of the angle variable unit includes an operation in which the predetermined display surface rotates in a direction in which a display surface forming angle that is an angle with respect to the virtual reference surface changes, and the predetermined range includes the predetermined angle by the rotation operation. The angle can be changed with
Photometric device. An optical sensor unit that receives light and acquires predetermined photometric data relating to the received light; and
An optical sensor unit mounting unit for mounting the optical sensor unit on a predetermined reference surface;
It is equipped with a display unit that displays the measurement data on a predetermined display surface, and further comprises a portable electronic device having a predetermined information processing function,
The optical sensor unit mounting unit further includes an interface unit for connection with the electronic device, and the electronic device is connected to the interface unit, thereby receiving the optical sensor unit mounting unit and the measurement data. Connected to
The optical sensor unit mounting unit further includes an angle variable unit provided so as to be rotatable integrally with the optical sensor unit,
The rotation operation of the angle varying unit includes an operation capable of rotating 360 degrees around a predetermined rotation axis parallel to the predetermined display surface.
Photometric device. A photometric device according to any one of claims 5 to 7, comprising:
An angle restriction unit that defines a minimum angle of the display surface formation angle that can be set by a rotation operation of the angle variable unit is further provided,
Photometric device. The photometric device according to any one of claims 1, 5, and 6,
The optical sensor unit mounting unit is:
A position adjusting unit that can be set so that the predetermined reference plane is parallel to the predetermined horizontal plane when the optical sensor unit is disposed on a predetermined horizontal plane;
Photometric device. The photometric device according to claim 9,
The optical sensor unit mounting unit is:
The position adjusting unit can change its position to a predetermined storage state,
A position adjustment storage unit for storing the position adjustment unit in the storage state in the optical sensor unit mounting unit;
Further comprising:
Photometric device. The photometric device according to claim 1,
The optical sensor unit mounting unit is:
An automatic horizontal position adjustment mechanism that holds the light sensor unit and automatically adjusts the position so that the predetermined reference plane is parallel to a horizontal plane;
Photometric device.

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