JPH09210846A - Method and apparatus for measurement of visual recognition of gradually changed curvature mirror surface on composite curved surface mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To irradiate a laser beam or a beam of light, by an irradiation device, toward a gradually changed curvature mirror surface provided with a complicated mirror surface and to project its reflected light on a projection face so as to recognize a visual recognition region regarding a method and an apparatus for measurement of the visual recognition region of a composite curved surface mirror which is provided with a constant curvature mirror surface and with a gradually changed curvature mirror surface. SOLUTION: A composite curved surface mirror 2 which is provided with a constant curvature mirror surface 32 and with a gradually changed curvature mirror surface 34 is set by a mirror support device 52 so as to be situated in a design reference position. The gradually changed curvature mirror surface 34 is irradiated with a laser beam or a beam of light by an irradiation device 60 which is arranged and installed in a position corresponding to the viewpoint of a driver. Its reflected light is projected on a projection face 64. Whether the irradiation region of the reflected light is within the prescribed visual recognition of a visual recognition range chart 66 as a design reference is recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the left and right sides of a road such as passenger cars, trucks, buses, and the like, in order to secure the right and left sides of the vehicle and to be attached to a building or the like to pass from a garage to the road. The present invention relates to a method and apparatus for measuring a visual recognition area of a gradually changing curvature mirror surface of a compound curved surface mirror used for securing the like.

[0002]

2. Description of the Related Art As is well known, various mirrors such as a rearview mirror, a front side under mirror, and a mirror in which the above two mirrors are combined have been proposed for the vehicle. In addition, the door mirrors of passenger cars, which have become almost standard equipment recently, are used daily with the field of view adjusted to the rear and distant side, but the vicinity of the ground contact surface of the rear wheel is difficult to enter the field of view of the door mirror.

When it is necessary to retract the vehicle such as entering a garage, the door mirror is once adjusted downward to adjust the field of view so that the rear wheels can be seen in the door mirror, and then the vehicle is moved backward. Again, when moving forward, the door mirror is raised upward, and it is used, for example, in the standard position, but this change in the view area needs to be adjusted each time as described above, which is troublesome for the driver while driving. It is working.

As a means for solving the problems of this type of conventional apparatus, there is, for example, Japanese Utility Model Laid-Open No. 58-166601. The technique described in the publication is a reflecting mirror including a mirror body 1 in which a flat mirror portion 1a and a convex curved mirror portion 1b are continuously formed as shown in FIGS. 5 (A) and 5 (B). The convex curved mirror portion 1b is configured to have a curvature in the vertical direction of the vehicle and no curvature in the vehicle width direction of the vehicle, and is formed so that at least the left and right images are not distorted as much as possible. The mirror body 1 is formed so that the sense of distance in the vehicle width direction can be realized as directly as possible, and there is no curvature in the left-right direction from the plane mirror portion 1a as described above, and a convex curved mirror portion 1b having a convex curvature only in the vertical direction. Since the images are connected to each other, distortion appears in the image shown in the vicinity of the boundary line between the two parts 1a and 1b, and there is no sense of continuity and it is difficult to visually recognize.

Therefore, in order to solve the above problems, the applicant of the present invention invented a "composite curved mirror for vehicle" described in Japanese Patent Application No. 7-276047. That is, Japanese Patent Application No. 7
The composite curved mirror for a vehicle described in the specification of No. 276047 has the above-mentioned boundary line 5 in the mirror body 22 as shown in FIG.
The curvature center of the gradually changing curvature curved surface portion 30 in which the curvature gradually changes is formed on the side of the constant curvature curved surface portion 28 exceeding 2 and the curvature center 48 of the single curvature curved surface portion 28 is formed as shown in FIG. Since the boundary lines 52 of the two mirror surfaces are connected to each other with a smooth surface in the form of radiation 50 over the mirror surface of the gradually changing curved surface portion 30, the image drool near the boundary line 52 changes extremely. In addition, since it is possible to visually recognize the image as a whole without feeling uncomfortable, driving can be performed very easily.

The curvature diameter of the single curvature curved surface portion 28 is also related to the size of the mirror body 22, but is about 400 m.
It is m to 2000 mm, and it becomes difficult to see unless the minimum curvature diameter of the gradually changing curvature curved surface portion 30 is about 50 mm or more. Preferably, if the minimum curvature diameter is about 70 mm to 300 mm, the above-described effects can be achieved. Further, the center of the radius of curvature of the gradually changing curved surface portion 30 is offset to the position offset on the line of the radius of curvature of the single curvature curved surface portion 28 or outside the line of the radius of curvature of the single curvature curved surface portion 28. It is formed so that it exists in a different position, and it is formed so as to be connected with a smooth surface in the boundary area.

Now, the above-mentioned Japanese Patent Application No. 7-276047
Applying the technology described in the book, the curvature gradually changes as shown in Fig. 7.
The gradually changing curvature mirror surface 30 is arranged on the right side of the constant curvature mirror surface 28.
The composite curved mirror 2 provided will be described. Figure 8
A single compound curved surface mirror 2 having a cross section taken along line 8A-8A in FIG.
And the radius of curvature on the center line of the mirror body shown in FIG.
R₀, R_a, R_b, R_c, R_dAnd gradually change
Curvature R_aThe center of the curve is the curve of the adjacent gradually changing curvature mirror surface 30.
Rate R ₀It is formed as above, and the next gradually changing curvature radius R_b
The center of the radius of curvature R_aI'm above
The radius of curvature R of the next gradually changing curvature mirror surface 30_cin
The radius is the radius of curvature R adjacent to the previous one_bAs above
The radius of curvature R of the gradually changing curvature mirror curve 30 that is formed_dThe center of
The radius of curvature R adjacent to the previous one_cFormed to be on
And the above R₀, R_a~ R_dIs the following relationship
Is configured to exist.

R ₀ > R _a > R _b > R _c > R _d The gradually changing curvature mirror surface 30 formed as described above changes gradually in a minute section by changing the curvature, and the curve does not change. They are smoothly connected so as to have a common line, are so-called egg-shaped surfaces, and are formed in a shape such that there is no substantially spherical portion. Further, the shape of the gradually changing curvature mirror surface 30 is not limited, and for example, the curvature diameter of the gradually changing curvature mirror surface 30 may be gradually changed in the vertical direction and the horizontal direction.

As described above, various complex curved mirrors have emerged in accordance with the needs of society, but the distortion rate of the mirror surface is measured according to JIS-D570 for the single curvature mirror surface.
It is standardized as 5. As is well known, this JIS-
Although not shown, the strain rate tester of D5705 has a graduation interval of 10 at a distance of 300 mm in front of the mirror.
The concentric circle graduation of mm and the bisector that passes through its center are made to face each other, and from the hole of the graduation center of the vertical stand,
A device for projecting concentric images on the mirror surface is used.

As is well known, distortion and curvature on a mirror surface are generally different, and an actual image is 800 m, for example.
If an image of ± 150 mm is reflected when m is m, there is an image of 950 mm and an image of 650 mm, and since the curvature is different, the size of the image that is reflected is different. That is, how to absorb the variation in the curvature is the standard of JIS-D5705, and the reflected light actually reflected is the average of the reflected light of the concentric circles at the intersection of the dividing line and the concentric circle. The radius is calculated, and the absolute value of the difference between the radius of the reflected light of the largest part or the smallest part of the concentric circle at the intersection and the average radius is divided by the average radius and multiplied by 100 to obtain the distortion factor ε. Is calculated.

[0011]

However, the gradually changing curvature of the complex curved mirror 2 having the constant curvature mirror surface 28 and the gradually changing curvature mirror surface 30 shown in FIG. 8 has a gradually changing curvature mirror surface. Since the reflected light of the gradually changing curvature mirror surface 30 is distorted into an elliptical shape, the JIS-D5705 is used.
Even if the idea of the standard formula is applied, it is not possible to set the average radii that differ in the length of each radius from the mirror surface center of the above dividing line to the concentric circle intersection.

Therefore, in practice, it is not possible to control the distortion rate of the reflected light from the gradual curvature mirror surface 30 as in the JIS-D5705 standard. On the other hand, the gradual-curvature mirror surface 30 of the compound curved mirror 2 having the constant-curvature mirror surface 28 and the gradual-curvature mirror surface 30 as described above, even if there is a difference in curvature between the respective parts of the gradual-curvature mirror surface 30, As a strain rate of each of the above-mentioned parts, the continuous smooth gradually changing curvature mirror surface 30 is provided so that the strain rate ε falls within a desired specified value.
It is manufactured so that

Further, how long the visible region of the gradually changing curvature mirror surface 30 of the compound curved-surface mirror 2 manufactured as described above is reflected in is a design theoretical value in which the variation in the distortion rate or the curvature is 0. The gradual curvature mirror surface 30 which is calculated and checked in a program for the mirror formed by
Confirmation of the visual recognition area is performed by computer simulation.

As described above, even if the complex curved mirror 2 is formed according to the design theory, the gradual curvature mirror surface 30 is particularly complicated, and the image region thereof has the gradual curvature mirror surface 30.
The quality of the complex curved mirror 2 is better improved by confirming the visually recognized area by the image actually displayed. The present invention was devised in view of such a problem, and irradiates a laser beam or a fine beam or a beam from a set position toward a compound curved mirror having a constant curvature mirror curve and a gradually changing curvature mirror curve, and a projection surface. In the irradiation area which is the irradiation position of the reflected light reflected in, the reference visible range chart based on the design standard arranged at the reference irradiation position by the reflected light of the reference compound curved surface mirror or the design reference position of the projection surface is set. ,
Irradiate a laser beam or a fine light beam or a light beam from the above setting position toward the inspected compound curved mirror, and show the actual irradiation position of the reflected light reflected on the projection surface and the reference irradiation position or the design reference visible range chart. An object of the present invention is to provide a method and apparatus for measuring a visual recognition area of a gradually changing curvature mirror surface of a compound curved surface mirror that can confirm by comparison whether or not the actual irradiation position is within a specified value.

[0015]

For this reason, the method for measuring the visible region of the gradually changing curvature mirror surface of the compound curved surface mirror of the present invention according to claim 1 has a constant curvature mirror surface and a gradually changing curvature mirror surface whose curvature gradually changes. The reference compound curved mirror is set to the setting position, the laser beam or fine beam is irradiated toward the gradually changing curvature mirror surface of the reference compound curved mirror, and the laser beam or fine beam reflected by the gradually changing mirror surface is projected. Recording the reference irradiation position by irradiating the surface, then setting the inspected compound curved surface mirror to the above setting position, and irradiating the laser beam or fine light beam to the gradually changing curvature mirror surface of the inspected compound curved surface mirror. Thus, the quality of the mirror surface is determined by comparing the actual irradiation position irradiated on the reflected projection surface with the reference irradiation position.

According to a second aspect of the present invention, there is provided a method for measuring a visible region of a gradually changing curvature mirror surface of a compound curved surface mirror, wherein a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface having a gradually changing curvature is set at a set position. Set, the reflection performance of the two mirror surfaces is made different, a light beam is irradiated toward the reference compound curved surface mirror, the reflected light is irradiated on the projection surface, and the reflected light is reflected by the gradually changing curvature mirror surface. The part to be inspected is recorded as a reference irradiation position, and then the inspected compound curved surface mirror is set to the above-mentioned setting position so that the reflection performance of both the mirror surfaces of the inspected compound curved surface mirror is made different, and the above-mentioned light beam is inspected in the inspected compound curved surface mirror. And comparing the actual irradiation position of the portion reflected from the gradually changing curvature mirror surface of the reflected light applied to the projection surface with the reference irradiation position to determine the quality of the mirror surface. I am trying.

According to a third aspect of the present invention, there is provided a method of measuring a visible region of a gradually changing curvature mirror surface of a complex curved mirror according to the first aspect, wherein the laser beam or the fine light beam is the reference complex curved mirror and the complex to be inspected. The feature is that scanning is performed on the mirror surface of the gradually changing curvature mirror surface of the curved mirror. According to a fourth aspect of the present invention, in the method for measuring a visible region of a gradually changing curvature mirror surface of a complex curved mirror of the present invention, in the configuration of the second aspect, the light beam is reflected on the mirror surfaces of the reference complex curved mirror and the inspected complex curved mirror. It is characterized by irradiation.

According to a fifth aspect of the present invention, there is provided a visual field measuring device for a gradually changing curvature mirror surface of a compound curved surface mirror, wherein a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface having a gradually changing curvature is set at a set position. A mirror support device for setting, an irradiation device for irradiating a laser beam or a fine beam toward the gradually changing curvature mirror surface of the reference compound curved surface mirror, and a projection for receiving the laser beam or the fine beam reflected by the gradually changing curvature mirror surface. A reference irradiation position formed on the surface, and compares the actual irradiation position of the gradually changing curvature mirror surface of the compound curved mirror to be inspected set in the mirror support device with the reference irradiation position to judge the quality of the mirror surface. It is characterized by doing.

According to a sixth aspect of the present invention, there is provided a visual observation area measuring device for a gradually changing curvature mirror surface of a compound curved surface mirror, wherein a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface having a gradually changing curvature is set at a set position. A mirror support device to be set, an irradiation device that irradiates a light beam toward the reference compound curved surface mirror, and a reflection performance different device that makes the reflection performance of the both mirror surfaces different,
The reference irradiation position formed on the projection surface that receives the light beam reflected by the gradually changing curvature mirror surface and the irradiation position by the reflection performance different device of the compound curved mirror to be inspected set on the mirror supporting device are gradually changed. The present invention is characterized in that the projection surface is provided which makes it possible to determine the actual irradiation position by the curvature mirror surface, and the quality of the mirror surface is judged by comparing the reference irradiation position and the actual irradiation position.

According to a seventh aspect of the present invention, there is provided a device for measuring a visible region of a gradually changing curvature mirror surface of a complex curved mirror according to the fifth or sixth aspect, wherein the recording device records the reference irradiation position and the projection surface. The image processing recognition device that detects the actual irradiation position projected onto the image processing recognition device compares the values of the actual irradiation position and the recording device from the image processing recognition device, and outputs an OK signal if the value is within the specified value. It is characterized by having an OK / NG recognition device that outputs an NG signal if it is out of the specified value.

According to the eighth aspect of the present invention, there is provided a device for measuring a visible region of a gradually changing curvature mirror surface of a compound curved surface mirror according to the sixth aspect, wherein the reflection performance difference device for making the reflection performances of both mirror surfaces different has a constant curvature. It is characterized in that it is a shielding means for covering the mirror surface. According to a ninth aspect of the present invention, there is provided a visual field measuring device for a gradually changing curvature mirror surface of a complex curved mirror according to the present invention, wherein the reflecting performance difference device for making the reflecting performances of the two mirror surfaces different is the gradually changing curvature mirror surface. It is characterized by being a coloring means for coloring the reflected light.

According to a tenth aspect of the present invention, there is provided a device for measuring a visible region of a gradually changing curvature mirror surface of a compound curved surface mirror according to any one of the fifth to seventh aspects, wherein the reference irradiation position is designed on the projection surface. It is characterized in that it is a reference visible range chart according to the design standard arranged at the reference position.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A case where the first embodiment of the present invention is applied to a door mirror of a passenger car will be described with reference to FIG. As shown in FIG. 1, there is provided a mirror support device 52 capable of adjusting the height of the door mirror mounted on the vehicle from the ground (road or floor) and the position of the mounting site.

The irradiation direction can be controlled by adjusting the vertical and horizontal irradiation angles on a support member 56 that is slidable in the front-back direction on a rail 54 that is arranged parallel to the front-back direction of the mirror support device 52. Irradiation angle controller 60C
Device 6 for irradiating laser light or fine light beam or light beam
0 is provided. Further, a reference compound curved surface mirror having a constant curvature mirror curve 32 and a gradually changing curvature mirror curve 34, which is a basic shape as a test piece, is formed by hand processing, machining, etc., and the reference compound curved surface as shown in FIG. The mirror is set by the mirror support device 52 to a set position corresponding to the design reference position when the mirror is attached to the vehicle.

The laser beam or fine light beam or light beam irradiation device 60 is arranged so as to be positioned at the driver's viewpoint, and the gradually changing curvature mirror surface 3 of the compound curved mirror is arranged.
Irradiate a laser beam or a fine beam or a beam toward 4,
The reference irradiation position indicating the irradiation area of the reflected light reflected from the gradually changing curvature mirror surface 34 is recorded. The recording of the reference irradiation position is provided with a projection surface 64, which is reflected by the gradually changing curvature mirror surface 34 and projects, corresponding to the ground on which the vehicle is placed, and the composite music set at the design reference position. The visible range of the reflected light from the gradually changing curvature mirror surface 34 of the mirror 2 is projected onto the projection surface 64 and recorded.

As shown in FIG. 1, the projection surface 64 is composed of a horizontal surface 68 corresponding to the ground on which the tire of the vehicle is installed and a vertical surface 69 corresponding to the side surface of the vehicle body. Next, by replacing the reference compound curved surface mirror set on the mirror supporting device 52 with the compound compound curved surface mirror 2 to be inspected set to the above-mentioned setting position, the laser beam or fine light beam or light beam is compounded to the compound compound curved surface mirror 2 to be inspected. Irradiate to
The actual irradiation position, which is the irradiation area of the reflected light, is set to the projection surface 6 described above.
4 recorded.

Since the first embodiment is constructed as described above, first, the reference compound curved mirror 2 having the constant curvature mirror surface 32 and the gradually changing curvature mirror surface 34 whose curvature is gradually changed is installed in the mirror supporting device 52. The laser beam or the fine beam is directed toward the gradually changing curvature mirror surface 34 of the reference compound curved mirror 2 by the irradiation device 60 which is attached to the set position, adjusted to a position corresponding to the driver's viewpoint, and arranged on the support member 56. The projection surface 64 is irradiated with the laser light or the fine light beam that is irradiated and reflected by the gradually changing curvature mirror surface 34, and the reference irradiation position 66 that is the reference reflection area 66 is recorded.

Next, the reference compound curved surface mirror 2 of the mirror support device 52 arranged at the above set position is removed, the compound curved surface mirror to be inspected is set at the above set position, and the irradiation device 60 arranged at the above position. By irradiating the gradually changing curvature mirror surface 34 of the compound curved surface mirror to be inspected with the laser light or the fine light beam, the actual irradiation position 65, which is the actual irradiation area irradiated on the projection surface 64, and the reference irradiation. By comparing with the position 66, the quality of the mirror surface can be determined more accurately and substantively.

Further, as shown in FIG. 1, on the mirror surface of the gradually changing curvature mirror surface 34 of the reference compound curved surface mirror 2 and the inspected compound curved surface mirror 2, as shown in FIG. The laser light is scanned at a plurality of arbitrarily selected points 63 on the mirror surface near the variable curvature mirror surface 34,
The reflected light is imaged on the projection surface 64 as the reference irradiation point 66a which is the irradiation position and the actual irradiation point 65a, and whether the actual irradiation point 65a is within the specified value of the reference irradiation point 66a which is the reference irradiation position 66 described above. You can accurately check the management and pass / fail of the above products.

The reference irradiation position 66 may be recorded by reflected light of a fine light beam, and the actual irradiation position may be imaged at the actual irradiation point 65a by the laser beam to compare the two, or both may be reversed. You can also check the management and pass / fail of the above products. Further, in the first embodiment described above, the laser light or the fine light beam is used for the irradiation device 60, but as an application example, a reflection performance different device 70 that makes the reflection performance of both mirror surfaces 32 and 34 of the compound curved surface mirror 2 described later different is provided. By interposing, the above-mentioned object can be achieved even if the light beam of the light 60a is utilized as shown in FIGS.

That is, in the application example shown in FIG. 2, as shown in FIG. 1, the shading means which is the reflection performance different device 70 on the front surface of the constant curvature mirror surface 32 of the compound curved mirror 2 arranged in the mirror support device 52. By providing 71, the irradiation light of the constant curvature mirror surface 32 is blocked, and only the actual irradiation position, which is the actual irradiation area 67 of the reflected light of the irradiation light of the lamp 60a applied to the gradually changing curvature mirror surface 34, is displayed on the projection surface 64. By comparing the reference irradiation position 66, which is the reference irradiation region 66 of the gradually changing curvature mirror surface 34, obtained in the same manner as described above, with the actual irradiation position 67, the composite curved mirror is similar to the case of the first embodiment. The pass / fail of the gradually changing curvature mirror curve 34 can be confirmed.

Further, in the case of the application example shown in FIG. 3, a coloring means 72 such as a color lens, which is a reflection performance different device 70, is provided on the front surface of.
Is arranged, and the irradiation light of the light 60a is applied as described above, and the actual irradiation area 73 of the colored reflected light is imaged on the projection surface 64, and the reference irradiation area of the colored reflected light obtained in the same manner as described above. 66 and the actual irradiation area 73
It is possible to easily confirm whether the gradually changing curvature mirror surface 34 is acceptable or not, by comparing the actual irradiation position with the above.

It is also possible to arrange the coloring means 72 on the front surface of the constant curvature mirror surface 32 to check the acceptance / rejection of the gradually changing curvature mirror surface 34 from the reflected light which is not colored. (Second Embodiment) Next, a second embodiment will be described with reference to FIG. FIG. 4 is an explanatory view schematically showing the visual recognition area measuring device 110 of the gradually changing curvature mirror surface 34 of the compound curved surface mirror 2 for warning or displaying whether or not the visual recognition area is acceptable according to the present invention.

Portions substantially the same as those in the first embodiment are designated by the same reference numerals, and different points will be described.
In the same manner as shown in FIG. 1, among the laser light or fine light rays or light rays, for example, the laser light or fine light rays from the irradiation device 60 is changed to a plurality of the gradually changing curvature mirror surface 34 of the compound curved mirror 2 or an arbitrary plurality of gradually changing curvature mirror surfaces 34. The point 63 is irradiated and the actual irradiation position 65 of the reflected light or the actual irradiation point 65a is imaged on the projection surface 64.

An image receiving camera 80, which is a video device 80, is provided at a position where an image of the actual irradiation position area 65 or the actual irradiation point 65a can be received vertically above the actual irradiation position 65 or the actual irradiation point 65a of the reflected light on the projection surface. ing. An image processing recognition device 82 which is connected to the image receiving camera 80 and detects the actual irradiation position 65 or the actual irradiation point 65a of the reflected light projected on the projection surface 64 and the reference complex curved surface mirror 2 or the reference complex curved surface. Reference irradiation position 66 of mirror 2 or reference irradiation point 66
It has a recording device 82a for recording a, compares the actual irradiation position from the image processing recognition device 82 with the value of the recording device 82a, and outputs an OK signal if the value is within the specified value, and outputs the specified value. When it is outside, an OK / NG recognition device 84 that outputs an NG signal such as a warning or a notice is output, and an image detected by the image processing recognition device 82 is output, or a reference of the reflected light from the reference compound curved surface mirror. It has a data input / output device 86 for inputting / outputting an irradiation area or a visible range of a design standard.

The image processing recognition device 82 is not limited to the one described above, and may be, for example, a gray visual device or the like used in production, inspection, etc. of various industries. Therefore, since the present embodiment is configured as described above,
In the visual recognition area measuring device 110, the compound curved surface mirror 2 is set at a set position by the mirror support device 52, and the laser beam or the fine light beam or the light beam is emitted from the irradiation device 60 of the compound curved surface mirror 2. The variable-curvature mirror surface 34 is irradiated, and the actual irradiation area 65 or the actual irradiation point 65a which is the actual irradiation position of the reflected light reflected on the projection surface 64.
The reflected image received by the image receiving camera 80 is detected and output by the image processing recognition device 82.
By the alarm of the recognition device 84, a notice, or the like, it is possible to easily and quickly confirm the visual recognition region of the gradually changing curvature mirror surface 34 of each individual compound curved mirror 2, and to select the pass / fail.

Further, in the above embodiment, the reference compound curved surface mirror 2 is formed as a test piece to form a reference compound curved surface mirror by manual processing, machining or the like, and a laser beam or a fine light beam is directed toward the reference compound curved surface mirror. Alternatively, by irradiating a light beam and irradiating the projection surface with the reflected light of the reference compound curved surface mirror, as a reference irradiation position (reference irradiation area), the above-mentioned actual irradiation of the inspected compound curved surface mirror irradiated on the projection surface as described above. Although the pass / fail of the product is determined by comparing with the position, the reference irradiation position is not formed on the reference compound curved surface mirror, and the reference irradiation position (the reference irradiation A reference visual range chart based on a design standard indicating a region and an actual irradiation point) is arranged, and a laser beam or a fine beam or a beam is irradiated toward the inspected compound curved mirror 2. , Be determined acceptability of the product by comparing the actual irradiation position is irradiated to the projection surface of the reflected light and the reference viewing range chart, it is possible to obtain the same effect as the above embodiment.

When the reference visual range chart is applied to the second embodiment, it is recorded in the recording device 82a, and the actual irradiation position and the reference visual range chart of the recording device are recorded as in the second embodiment. Even if the pass / fail of the product is determined by comparing the above, the same operational effect as that of the above-described embodiment can be obtained. Further, the reference irradiation position 66 and the actual irradiation position 6 of the reflected light in any of the above-described embodiments.
Reference numerals 5, 67, and 69 denote irradiation areas of the above-mentioned reflected light, and include the irradiation points and the irradiation areas described above.

[0039]

As described in detail above, according to the method for measuring the visible region of the gradually changing curvature mirror surface of the complex curved mirror of the present invention according to the first aspect, the constant curvature mirror surface and the gradually changing curvature mirror surface whose curvature gradually changes. And a laser beam or a fine beam toward the gradually changing curvature mirror surface of the reference compound curved surface mirror, and the laser light or fine beam reflected by the gradually changing curvature mirror surface. Record the reference irradiation position by irradiating the projection surface with a light beam, then set the inspected compound curved surface mirror to the above-mentioned setting position, and the laser beam or fine light beam to the gradually changing curvature mirror surface of the inspected compound curved surface mirror. By irradiating, the quality of the mirror surface is judged by comparing the actual irradiation position irradiated on the reflected projection surface with the reference irradiation position, so that the reflection from the gradually changing curvature mirror surface of the reference compound curved surface mirror is performed. Above Laser beam or fine light beam reflected by the gradually changing curvature mirror surface of the inspected compound curved mirror set at the set position by recording the reference irradiation position formed by irradiating the projection surface of the laser light or fine light beam. In order to determine the quality of the mirror surface by comparing the actual irradiation position formed by irradiating the projection surface and the recorded reference irradiation position, accurately inspect each one of the inspected compound curved surface mirror, It is very easy to check the management and acceptance of the above products.

According to the second aspect of the present invention, there is provided a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface whose curvature gradually changes. Set to a position, the reflection performance of the both mirror surfaces is made different, a light beam is irradiated toward the reference compound curved surface mirror, and the reflected light is irradiated to the projection surface, and the gradually changing curvature mirror surface of the reflected light is used. The reflected portion is recorded as a reference irradiation position, then the inspected compound curved surface mirror is set to the above-mentioned setting position, the reflection performance of the both mirror surfaces of the inspected compound curved surface mirror is made different, and the light beam is inspected as Irradiating the curved mirror, comparing the actual irradiation position of the part reflected from the gradually changing curvature mirror surface of the reflected light irradiated to the projection surface and the reference irradiation position, to determine the quality of the mirror surface. , The above criteria By irradiating a curved mirror with light rays, the reflection performance of the two mirror surfaces is made different, the reference irradiation position reflected from the gradually changing curvature mirror surface is recorded, and the gradually changing curvature mirror surface of the inspected compound curved mirror set at the set position is recorded. In order to judge the quality of the mirror surface by comparing the actual irradiation position formed by irradiating the projection surface of the light beam reflected by the above with the recorded reference irradiation position, each of the inspected compound curved surface mirrors Can be accurately inspected, and the management and pass / fail of the product can be confirmed very easily.

According to the third aspect of the present invention, there is provided a method for measuring a visible region of a gradually changing curvature mirror surface of a complex curved mirror according to the present invention, wherein the laser beam or the fine light beam is the reference complex curved mirror and the object to be covered. Since the mirror surface of the gradually changing curvature mirror surface of the inspected compound curved surface mirror is scanned, the irradiation position of the laser light or the fine beam of the reference compound curved surface mirror and the gradually changing curvature mirror surface of the inspected compound curved surface mirror to be scanned on the projection surface. In order to judge the quality of the mirror surface by comparing the reference irradiation point or reference irradiation line with the actual irradiation point or actual irradiation line, each of the inspected compound curved surface mirrors is accurately inspected, and the management of the product is performed. It is very easy to check the pass / fail status.

According to a fourth aspect of the present invention, there is provided a method for measuring a visible area of a gradually changing curvature mirror surface of a complex curved mirror according to the present invention, wherein in the configuration described in claim 2, the light beam is the reference complex curved mirror and the complex curved surface to be inspected. Since it illuminates the mirror surface of the mirror,
In order to determine the quality of the mirror surface by comparing the reference irradiation position and the actual irradiation position of the gradually changing curvature mirror surface irradiated on the projection surface of the light beam of the reference compound curved surface mirror and the inspected compound curved surface mirror, Each of the inspected complex curved mirrors can be precisely inspected, and the management and pass / fail of the product can be confirmed very easily.

According to the fifth aspect of the present invention, the visual field measuring device for the gradually changing curvature mirror surface of the compound curved surface mirror sets the reference compound curved surface mirror having the constant curvature mirror surface and the gradually changing curvature mirror surface whose curvature gradually changes. A mirror support device to be set to a position, an irradiation device for irradiating a laser beam or a fine beam toward the gradually changing curvature mirror surface of the reference compound curved surface mirror, and the laser beam or the fine beam reflected by the gradually changing curvature mirror surface. A reference irradiation position formed on the receiving projection surface, and comparing the actual irradiation position of the gradually changing curvature mirror surface of the inspected compound curved surface mirror set on the mirror support device with the reference irradiation position, and determining whether the mirror surface is good or bad. Therefore, the base formed by irradiating the projection surface of the laser beam or fine light beam reflected from the gradually changing curvature mirror surface of the reference compound curved surface mirror arranged at the setting position of the mirror supporting device. The irradiation position and the actual formed by irradiating the projection surface of the laser beam or fine light beam reflected by the gradually changing curvature mirror surface of the inspected compound curved surface mirror set at the setting position in place of the reference compound curved surface mirror. Since the quality of the mirror surface is judged by comparing with the irradiation position, it is possible to accurately inspect each compound curved mirror to be inspected, and it is possible to very easily check the management and the pass / fail of the product.

According to the sixth aspect of the present invention, the visual field measuring device for the gradually changing curvature mirror surface of the compound curved surface mirror, the reference compound curved surface mirror having the constant curvature mirror surface and the gradually changing curvature mirror surface whose curvature gradually changes is set. A mirror support device set to a position, an irradiation device for irradiating a light beam toward the reference compound curved surface mirror, a reflection performance different device for making the reflection performance of the both mirror surfaces different, and the above-mentioned reflection by the gradually changing curvature mirror surface. It is possible to distinguish the reference irradiation position formed on the projection surface that receives the light beam and the actual irradiation position by the gradually changing curvature mirror surface among the irradiation positions by the reflection performance different device of the inspected compound curved surface mirror set on the mirror supporting device. The projection surface is provided, and the quality of the mirror surface is determined by comparing the reference irradiation position with the actual irradiation position. By irradiating a curved mirror with light rays to change the reflection performance of the both mirror surfaces, the reference irradiation position reflected from the gradually changing curvature mirror surface and the inspected compound curved surface set at the setting position in place of the reference compound curved mirror In order to judge the quality of the mirror surface by comparing the actual irradiation position formed by irradiating the projection surface of the light beam reflected by the gradually changing curvature mirror surface of the mirror with the reference irradiation position, a compound curved surface mirror to be inspected It is possible to precisely inspect each of the above items, and to very easily check the management and acceptance of the above products.

According to a seventh aspect of the present invention, there is provided a recording device for recording the reference irradiation position, and a recording device for recording the reference irradiation position in the configuration of the fifth or sixth aspect. The image processing recognition device that detects the actual irradiation position projected on the projection surface is compared with the values of the actual irradiation position and the recording device from the image processing recognition device. If the value is within the specified value, an OK signal is output. Since it has an OK / NG recognition device that outputs an NG signal if it is out of the specified value, it becomes extremely easy to select whether each of the compound curved mirrors is acceptable or not.

According to the eighth aspect of the present invention, there is provided a device for measuring a visual recognition area of a gradually changing curvature mirror surface of a complex curved mirror according to the present invention. Since it is a shielding means that covers the constant curvature mirror surface, the light shielding means compares the actual irradiation position irradiated on the projection surface of the reflected light only on the gradually changing curvature mirror surface with the reference irradiation position to determine the quality of the mirror surface. In order to make the determination, it is possible to precisely inspect each of the inspected compound curved surface mirrors, and it is possible to extremely easily confirm the management and the pass / fail of the product.

According to the ninth aspect of the present invention, there is provided a device for measuring a visibility region of a gradually changing curvature mirror surface of a complex curved mirror according to the present invention. Since it is a coloring means for coloring the reflected light of the gradually changing curvature mirror surface, the actual irradiation position and the reference irradiation position where the reflected light of only the gradually changing curvature mirror surface is colored by the coloring means and is applied to the projection surface. In order to judge the quality of the mirror surface by comparing the above, it is possible to accurately inspect each inspected compound curved surface mirror, and it is possible to very easily confirm the management and the pass / fail of the product.

According to the visual field measuring device for a gradually changing curvature mirror surface of the compound curved surface mirror of the present invention according to claim 10,
In any one of the configurations 1 to 7, the reference irradiation position is a reference visual range chart according to the design reference arranged at the design reference position on the projection surface, so that the composite curved mirror is set to the design reference position. Then, it is set on the mirror supporting device, and the laser beam or the fine beam or the beam is irradiated by the laser beam or the fine beam or the beam irradiation device toward the gradually changing curvature mirror surface of the complex curved mirror, and the reflected light is projected onto the projection surface. In order to accurately detect whether the reflected light is within the specified value of the above-mentioned reference view range chart,
You can check product management and pass / fail.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an application example of the first embodiment shown in FIG.

FIG. 3 is an explanatory diagram showing another application example similar to FIG.

FIG. 4 is an explanatory diagram showing a second embodiment of the present invention.

5A and 5B are explanatory views showing a conventional compound curved mirror, FIG. 5A is a longitudinal sectional view showing a cross section of the compound curved mirror, and FIG. 5B is a side view showing a side face of FIG. 5A. It is a figure.

FIG. 6 is an explanatory view showing the configuration of a gradually changing curvature mirror surface according to the description in Japanese Patent Application No. 7-276047.

FIG. 7 is a front view showing a case where FIG. 6 is applied to a vehicle door mirror.

8 is a vertical cross-sectional view showing a cross section of a single compound curved surface mirror taken along line 8A-8A in FIG.

[Explanation of symbols]

2 compound curved mirror 28 constant curvature curved surface part (constant curvature mirror surface) 30 gradually changing curvature curved surface part (gradual curvature curvature mirror surface) 32 constant curvature mirror surface 34 gradually changing curvature mirror surface 52 mirror support device 54 rail 56 support member 60 laser light or light beam Irradiation device 60a Lamp 60C Irradiation angle control device 63 Point on mirror surface of compound curved mirror 64 Projection surface 65 Actual irradiation position (irradiation area) 65a Actual irradiation point 66 Reference irradiation position (reference irradiation area, reference visible range chart) 66a Reference irradiation Point 67 Actual irradiation area by light-shielding means 68 Horizontal plane 69 Vertical surface 70 Reflection performance different device 71 Light-shielding means 72 Coloring means 73 Actual irradiation area by coloring means 80 Video device (image receiving camera) 82 Image processing recognition device 82a Recording device 84 OK / NG Recognition device 86 Data input / output device

Claims (10)

[Claims] 1. A reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface with gradually changing curvature is set at a set position, and a laser beam or a fine beam is directed toward the gradually changing curvature mirror surface of the reference compound curved surface mirror. And irradiate the projection surface with the laser beam or fine light beam reflected by the gradually changing curvature mirror surface to record the reference irradiation position, and then set the inspected compound curved surface mirror to the setting position, By irradiating the gradually changing curvature mirror surface of the inspected composite curved surface mirror with light or a fine light beam, the actual irradiation position irradiated on the reflected projection surface and the reference irradiation position are compared to determine whether the mirror surface is good or bad. A method for measuring a visual recognition area of a gradually changing curvature mirror surface of a compound curved mirror, which comprises: 2. A reference compound curved mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface having a gradually changing curvature is set at a set position, and the reflection performances of the both mirror surfaces are made different, and the reference compound curved surface mirror is moved toward the reference compound curved mirror. A ray of light is emitted, the reflected light is emitted to the projection surface, and the portion of the reflected light reflected by the gradually changing curvature mirror surface is recorded as a reference irradiation position. , The reflection performance of the two mirror surfaces of the inspected compound curved surface mirror is made different, the above-mentioned light rays are irradiated to the inspected compound curved surface mirror, and the gradually changing curvature mirror surface out of the reflected light irradiated on the projection surface is set. A method for measuring a visual recognition region of a gradually changing curvature mirror surface of a compound curved mirror, characterized by comparing the actual irradiation position of the reflected portion with the reference irradiation position to determine the quality of the mirror surface. 3. The gradual change of the complex curved mirror according to claim 1, wherein the laser beam or the fine light beam scans the mirror surfaces of the gradually changing curvature mirror surfaces of the reference complex curved mirror and the inspected complex curved mirror. A method for measuring the visible area of a variable curvature mirror surface. 4. The method for measuring a visible region of a gradually changing curvature mirror surface of a compound curved mirror according to claim 2, wherein the light rays illuminate the mirror surfaces of the reference compound curved mirror and the compound curved surface mirror to be inspected. . 5. A mirror support device for setting a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface having a gradually changing curvature at a set position, and a laser directed toward the gradually changing curvature mirror surface of the reference compound curved surface mirror. An irradiation device for irradiating light or a fine light beam, and a reference irradiation position formed on a projection surface for receiving the laser light or the fine light beam reflected by the gradually changing curvature mirror surface are provided, and the object set on the mirror support device is provided. Characterized by determining the quality of the mirror surface by comparing the actual irradiation position of the gradually changing curvature mirror surface of the inspection compound curved surface mirror and the reference irradiation position,
Visible area measuring device for gradually changing curvature mirror surface of compound curved mirror. 6. A mirror support device for setting a reference compound curved surface mirror having a constant curvature mirror surface and a gradually changing curvature mirror surface whose curvature gradually changes at a set position, and an irradiation device for irradiating a light beam toward the reference compound curved surface mirror. A reflection performance difference device that makes the reflection performance of the two mirror surfaces different, a reference irradiation position formed on a projection surface that receives the light beam reflected by the gradually changing curvature mirror surface, and a target object set on the mirror support device. The inspection composite curved surface mirror is provided with the projection surface that makes it possible to determine the actual irradiation position by the gradually changing curvature mirror surface among the irradiation positions by the reflection performance different device, and compares the reference irradiation position and the actual irradiation position with each other. A visual recognition area measuring device for a gradual-curvature mirror surface of a compound curved mirror, which is characterized by determining the quality of the mirror surface. 7. A recording device for recording the reference irradiation position, an image processing recognition device for detecting an actual irradiation position projected on the projection surface, and an actual irradiation position from the image processing recognition device and a value of the recording device. Are compared, and if the value is within the specified value, an OK signal is output, and if the value is outside the specified value, an NG signal is output OK / NG
It has a recognition device, The claim 5 or 6 characterized by the above-mentioned.
A visual recognition area measuring device for a gradually changing curvature mirror surface of the described complex curved mirror. 8. The visual recognition region of the gradually changing curvature mirror surface of the complex curved mirror according to claim 6, wherein the reflection performance difference device for making the reflection performances of both mirror surfaces different is a shielding means for covering the constant curvature mirror surface. measuring device. 9. The gradual curved surface mirror for complex curved mirrors according to claim 6, wherein the reflection performance difference device for differentiating the reflection performance of the two mirror surfaces is a coloring means for coloring the reflected light of the gradual curvature mirror surface. Visual area measuring device for variable curvature mirror surface. 10. The composite according to claim 5, wherein the reference irradiation position is a reference visual range chart according to the design reference arranged at a design reference position on the projection surface. Visual area measuring device for gradually changing curvature mirror surface of curved mirror.