JP2020046242A - Optical apparatus using spectacle lens and round lens as test lenses - Google Patents

Abstract

To provide a lens checker or lensmeter capable of ensuring the reliability of optical accuracy and operation with a low equipment height requiring no vertical dimension measurement of temples in eyeglass frames.SOLUTION: The lens checker has a holding mechanism 1 of a test lens including X-axis slider members 9 and 10 and Y-axis slider members 13 and 14 for handling eyeglass lenses and round lenses as lens ML to be inspected. The lens checker is disposed in a plane crossing the optical axis in an optical device main body 2a. The lens checker is configured to mechanically hold a temple MT of a spectacle frame upright in a movable manner in at least an X-axis direction.SELECTED DRAWING: Figure 2

Description

The present invention mechanically holds a spectacle lens framed in a spectacle frame and a test lens such as a round lens before processing, and in particular, with the spectacle frame (temple) portion of the spectacle frame upright. The present invention relates to an optical apparatus including a holding mechanism for a test lens that can be adjusted and moved at least in the X-axis direction while holding the lens.

For a spectacle lens framed in a spectacle frame or a round lens before framing processing, a lens checker for observing scratches and dirt on these lens surfaces to be inspected, hidden marks, etc., or inspecting the appearance quality, A lens meter for measuring optical characteristics such as the power of the lens to be inspected, and a lens meter with a mark-point applying mechanism after the measurement are often used in this kind of optical field. In (2), a lens mounting table for mounting the test lens is generally provided to protrude from the apparatus main body.
Therefore, in particular, when the spectacle lens framed in the spectacle frame is used as the lens to be tested, the spectacle lens (temple) in the spectacle frame is set when the spectacle lens is set on the lens mounting table protruding from the base of the apparatus. ) Is set downward so that the spectacle lens abuts on the mounting surface of the lens mounting table, and the lens is positioned at a height equal to or greater than the length corresponding to the length of the spectacle pair (temple). In practice, the height required for providing the mounting surface is determined, and the height of the entire apparatus is large.

Further, in this type of optical apparatus, the holding of the lens to be inspected corresponding to the difference in the form of the lens to be inspected, that is, the type of the eyeglass lens or the unprocessed round lens framed in the eyeglass frame. In general, there is a case where an optical apparatus having a mechanism is provided, so that it is inevitable that the equipment cost increases.

As described above, in a lens meter representing this type of optical apparatus, as described with reference to Patent Document 1 below, for example, a measuring device main body 1 having a monitor television 2 provided above an optical measuring section 3 is described. In the center of the front of the upper part, an upper storage part 4 protruded (bulged) to constitute the optical measurement part 3 and a lower storage part 5 protruded (bulged) facing the lower part are provided. In addition, a frustroconical cylindrical lens receiver 6 and a measuring optical system 10 which are protruded and fixed on the upper surface of the lower storage portion 5 are provided. FIG.
In the case where the lens to be measured is measured in the state shown in FIG. 1 and the left and right lenses 72 and 73 framed in the glasses frame 71 of the glasses 70 are measured, as shown in FIG. First, the operator holds the spectacle frame in the spectacle frame 71 with the left hand 81 in a state of being hung downward, abuts the nose pads 74, 74 against the nose pad support member 32, and holds the lenses 72, 73 in the spectacle frame 71. The lower end is pressed against the contact member 31, and the right hand 8 is held while holding the lens 72 on the measurement side by hand so as to contact the lens receiver 6 on the upper surface of the lower housing 5.
At 0, the lever 36 is rotated to adjust the position in the front-rear direction with respect to the measurement optical axis, and the position in the left-right direction is adjusted by moving the left hand 81 left and right.
That is, in the lens meter of the prior art document 1, as described above, the spectacle frame (temple) portion of the spectacle frame 71 is utilized by using the lower storage portion 5 protruding from the front surface of the optical device main body. Has a dimension in the height direction so that it will not be affected even if it hangs down,
As a result, the apparatus main body 1 becomes larger in the height direction, which is an obstacle to the reduction of the floor and the size of the apparatus.
In addition, according to this prior art document, the worker holds the glasses frame 71 horizontally and adjusts the position by moving the test lenses 72, 73 back and forth and left and right in accordance with the measurement optical axis. Since different operations such as holding and adjusting must be performed using both hands 80 and 81, not only is the operator required to be skilled in the operation, but also the accuracy of alignment is inferior. However, when viewed as an optical apparatus, it has only a fatal defect.

As an example of this type of lens meter, which has a function of measuring the distance between the optical axes of the left and right lenses A and B of the glasses S, for example, Patent Document 2 below is known. Nose piece (lens mounting table) provided on the upper surface of the bulging portion protruding from the front of the measuring device body
A function of pressing the lower part of the frame of the glasses S against the receiving table 1 and holding the same by hand, and using the abutment plate 5 pressed against the side of the glasses frame, the distance between the optical axis centers of the lenses A and B is read from the scale. In this case as well, as is clear from FIG. 1 of the official gazette drawing, the left and right eyeglasses (temple) portions of the eyeglass frame are hung downward as in the prior art document 1. Since the apparatus is held by hand in the state, it is accompanied by an increase in the size of the apparatus in the height direction, so that not only can the apparatus not be reduced in floor and compactness, but also with respect to the horizontal holding of the glasses S, As in the prior art document 1, the skill of the operator is required, and in addition, the precision of the optical device is unavoidable.

Further, when attention is paid to a mechanical holding mechanism of a lens to be inspected in a lens meter as an optical apparatus of this type, mechanical measures for both an unprocessed round lens and an eyeglass lens framed in an eyeglass frame are performed mechanically. For example, Patent Document 3 below is known as a typical preceding example of a suitable holding mechanism. In this case as well, the lens 4 to be inspected is placed in the same manner as in Patent Documents 1 and 2 described above. The lens frame 532 of the spectacle frame is placed on the upper surface 605c of the handpieces 600 and 601, and the temple FT is mounted on the temple FT as shown in FIG. With the (eyeglasses) facing downward, the outer surface 605d of the hand pieces 600, 601 regulates the position of the eyeglasses frame in the left-right direction, and the lens table Since the spectacle lens 4 is mechanically held with respect to the lens receiving member 541 on the upper surface of the device 32, the height of the apparatus can be reduced and the size can be reduced in the same manner as in the above-mentioned Patent Documents 1 and 2. It cannot be done.
The feature of this prior example is that, as disclosed in detail in FIGS. 7 (A) to 10 (A) of the official gazette, a pair of left and right clamping members for holding the lens 4 to be inspected are provided. Hand 5
Arms 526 and 527 that support the first and second arms 30 and 531 are combined in an intersecting structure (scissors mechanism), and open and close these hand arms 526 and 527 to hold the unformed lens 4 as a drive system. A motor 522 and a timing belt 525 are provided, and an X as a drive system for moving the arm base 520 supporting these arm members 526, 527, 530, and 531 in the X-axis direction while maintaining a horizontal state. Shaft feed screw 508a
And a guide rail 508b and its X-axis motor 504, a Y-axis feed screw 505, a guide rail 507, and a Y-axis motor 502 as a drive system for moving these together with the flange 503ab in the Y-axis direction. A lens holding device to be inspected is disclosed in which a Z-axis feed screw 505 and the like for moving the Z-axis table 501 and the like in the Z-axis direction are combined three-dimensionally in a complicated manner. Not only that, but also regarding the operation procedure necessary for holding the round lens 4 and the operation procedure required for holding the spectacle frame FM, each component related to the arm member for performing these operations Is exactly the opposite,
This is confusing to the operation procedure by the operator and is not preferable from the viewpoint of preventing erroneous operation.
That is, when holding the unformed round lens 4 horizontally, as described above, the hand 530,
By moving the inner surfaces 605a and 605b of the 531 in the direction approaching each other, the unshaped lens 4
When the eyeglasses frame FM is held horizontally while holding the eyeglasses frame FM, the upper surface 605c of each of the left and right hand pieces 600, 601 receives the left and right eyeglasses frame FM, and holds the left and right hand pieces 600, 601. The outer side surface 605d is moved in a direction away from each other, and the temple FT of the eyeglass frame FM is held so as to be spread outward. In addition to the risk of erroneous operation, the operability and operation accuracy of the optical apparatus are simply a problem due to the complexity of the mechanical configuration.

JP-A-8-29292 JP-A-3-255330 JP-A-61-120940

The present invention relates to a lens (including an appearance quality inspection) for observing a flaw or dirt on a surface of a lens to be inspected, a hidden mark, or the like with respect to a spectacle lens framed in a spectacle frame or a round lens before processing. An optical device device that is frequently used in this type of optical field, such as a checker or a lens meter for measuring optical characteristics such as the power of the lens to be inspected, and a lens meter including a measurement and marking mechanism. In order to solve various inconveniences such as those described in Patent Documents 1 to 3 caused by a lens mounting table for a lens to be inspected, which has been widely used.
This will be briefly described below with reference to FIG. 1. The conventional lens meter 20 shown in FIG. 1 has a display screen 20a at the top and a base 20b of the device main body.
An upper housing part 22 housing a light receiving side optical system that constitutes a measuring optical system is disposed opposite to a lower housing support part 21 that houses a light source side optical system protruding from the upper surface. Is further provided with a test lens mounting table 23 for abutting and mounting the spectacle lens ML framed in the spectacle frame MF. When the spectacle lens ML is measured, the test lens mounting table 23 is used.
In general, the eyeglass lens ML is abutted and mounted with the temple MT of the eyeglass frame MF hanging down, and the lens frame is pressed by a human hand while being pressed against the frame receiver 24 on the main body side. It is frequently used.
However, in the conventional system using the structure including the lower housing support portion 21 and the lens mounting table 23, the overall size of the optical apparatus is increased due to the height dimension required for the lens mounting table 23. It is not evident that it is impossible to avoid the increase in the size of the apparatus and to further reduce the floor and make the apparatus compact. When measuring an unprocessed round lens, the temple M
The height dimension corresponding to the length dimension of T itself is an undesirable dead space.
Accordingly, the present invention is particularly required to make the temple of the spectacle frame downward so as to be advantageous especially when the spectacle lens framed in the spectacle frame is used as the lens to be examined. To reduce the height of the device corresponding to the length of the lens, that is, to propose a completely new mechanical holding mechanism for the spectacle frame instead of the lens mounting table protruding upward from the base of the device, In addition to making it possible to achieve the technical solution of lowering the floor and making the camera compact, the spectacle lens framed in the spectacle frame is used as the test lens,
Further, it is only necessary to provide a general optical apparatus including a holding mechanism dedicated to the spectacle frame, which can be freely adjusted and moved in a plane at least in the X-axis direction while the temple of the spectacle frame is set up. Rather, it is an object of the present invention to provide a small, low-floor lens checker or lens meter having individual functions related to optics.

Also, in this type of optical equipment, since the price of one device is generally high,
Since it is difficult and expensive to provide optical devices corresponding to different forms of the lens to be inspected, for example, it is possible to observe or measure a spectacle lens framed in a spectacle frame, as well as a circle before processing. As for lenses, there is a keen need for the development of optical equipment that can observe and measure in the same optical equipment, so that even lenses of different forms can be mechanically held. At the same time, it is required that accurate accuracy of movement and holding of the test lens in the same plane is ensured, and that operability of the movement operation and the like is simple as an essential condition. As a holding mechanism for a test lens of a different form capable of achieving the requirements of the above, both the spectacle lens framed in the spectacle frame and the unprocessed round lens It proposes a completely new mechanical holding mechanism that can be used, and not only eliminates the lens mount of the conventional type, but also fulfills the technical solution to reduce the floor and size of optical equipment. An inexpensive optical apparatus comprising a holding mechanism shared by a spectacle lens and a round lens, which is capable of adjusting and moving the lenses to be inspected in at least the X-axis direction even if the lenses have different shapes. Another object of the present invention is to provide a compact, low-floor, high-precision lens checker or lens meter having individual functions related to optics at low cost.

A first feature of the present invention is that a spectacle lens framed in a spectacle frame and a new spectacle lens, which employs a new test lens holding mechanism for abolishing the mount of the test lens as in a conventional optical device, are employed. In an optical apparatus using a processed round lens as a lens to be inspected, a holding mechanism shared by the spectacle frame and the round lens holds the temple of the spectacle frame in an upright state, while the round lens has a downward convex surface. The holding mechanism is configured to be slidable at least in the X-axis direction in a plane intersecting the optical axis of the optical device main body. The optical device is provided at a predetermined position in the optical device main body.

As a feature relating to the holding mechanism of the lens to be inspected, in the present invention, as a new mechanism for holding the lens to be inspected in place of the conventional mounting table for the lens to be inspected, in particular, eyeglasses framed in an eyeglass frame In order to hold the spectacle lens to be held at least slidably in the X-axis direction, the holding mechanism using the lens as the lens to be tested is arranged parallel to each other at a predetermined interval and extended in the X-axis direction. First and second X-axis slider members are slidably provided on the slide shaft and the respective X-axis direction slide shafts so as to extend between the first and second X-axis slider members. A Y-axis direction slide rail member is attached to the X-axis direction slide shaft in an orthogonal relationship with the X-axis direction slide shaft, and the Y-axis direction slide rail member includes a first X-axis slider member. A first Y-axis slider member having a spectacle lens frame receiving portion formed at an end of the slidable combination, and a nosepiece receiving portion corresponding to the nose pad of the spectacle frame is slidably combined with the first Y-axis slider member. The second Y-axis slider member having the portion is overlapped and relatively slidably combined, and the nosepiece receiving member of the second Y-axis slider member is used as the glasses of the first Y-axis slider member. A first urging spring for urging toward the lens frame receiving portion, and a second urging spring for urging the first Y-axis slider member to a predetermined position in the direction of the first X-axis slider member. A bias spring is provided so that the spectacle frame can be mechanically held by the spectacle lens frame receiving portion and the nosepiece receiving portion while the temple thereof is raised upward, and the first Y-axis slider is further provided. The member is configured as a holding mechanism dedicated to a spectacle lens configured to be movable along the Y-axis against the second biasing spring and along the X-axis guided by the slide shaft. A lens-specific holding mechanism is provided at a predetermined position of the optical device main body.

Further, as a feature relating to the holding mechanism of the lens to be inspected, in the present invention, as a new mechanism for holding the lens to be inspected in place of the mounting base for the lens to be inspected as in the past, in particular, eyeglasses framed in an eyeglass frame. The holding mechanism using the lens and the unprocessed round lens or the like as the test lens has a predetermined interval in order to hold any of the test lenses having different forms to be held so as to be slidable at least in the X-axis direction. The first and second X-axis slider members are slidably provided on the X-axis direction slide shafts arranged in parallel with each other and the respective X-axis direction slide shafts, and the first and second X-axis slider members are slidably provided. X so as to straddle between the X-axis slider members
A Y-axis direction slide rail member is attached in an orthogonal relationship with the axial slide shaft, and the Y-axis direction slide rail member has a spectacle lens frame receiving portion and a circle at the end on the first X-axis slider member side. A first Y-axis slider member formed with a round lens receiving portion for receiving a part of the outer periphery of the lens is slidably combined, and further corresponds to the nose pad of the eyeglass frame with respect to the first Y-axis slider member. A second Y-axis slider member formed with a nosepiece receiving portion and a round lens receiving portion for receiving a part of the outer periphery of the round lens is overlapped and relatively slidably combined with each other. A first biasing spring for biasing the nosepiece receiving member of the axis slider member toward the spectacle lens frame receiving portion of the first Y-axis slider member; and X Providing a second biasing spring for biasing to a predetermined position in the slider member direction, the spectacle frame by the spectacle lens frame receiving portion and the nosepiece receiving portion, in a state where its temple is raised upward While the lens can be mechanically held as it is, the round lens can be similarly held by the round lens receiving portion of the first Y-axis slider member and the round lens receiving portion of the second Y-axis slider member. One Y-axis slider member along the Y-axis against the second biasing spring, and along the X-axis guided by the slide shaft;
The eyeglass lens and the round lens are both configured to be freely movable and configured as a common holding mechanism, and a common holding mechanism for the test lens having the different form is provided at a predetermined position of the optical device body. Things.

Furthermore, in the present invention, the optical characteristics of the optical apparatus can be used to observe, for example, scratches and dirt on the surface of the lens to be inspected, hidden marks, and the like (including an appearance quality inspection). A light source for irradiating the test lens from the back surface, as an optical system for observing the front or back surface of the test lens such as a spectacle lens framed in a spectacle frame and a round lens before processing, and a test lens An observation optical system composed of image pickup means for receiving and capturing an image of the illuminated light beam is adopted, and a spectacle frame is raised upward on the front of an optical device body including the observation optical system. While it is possible to mechanically hold the lens as it is in the state, it is also possible to hold the round lens in the same manner, making these test lenses movable freely in at least the X-axis direction in a plane, As a holding mechanism shared by the mirror lens and the round lens, the holding mechanism is mounted so as to cross the optical axis of the observation optical system in the optical apparatus body, or the shared holding mechanism is formed by the X-axis slider member and the Y-axis. It is a so-called lens checker characterized by being constituted by an axis slider member.

Still further, in the present invention, the spectacle lens framed in the spectacle frame, in particular, so that the optical characteristics such as the power of the lens to be measured can be measured by the optical characteristics of the optical device. As an optical system for measuring its optical characteristics as a test lens,
It employs a measuring optical system consisting of a light source for transmitting the test lens from the back and a measuring operation means for receiving the transmitted light flux transmitted through the test lens and measuring the optical characteristics. On the front surface of the optical device main body, the eyeglass frame can be mechanically held while the temple thereof is raised upward, and the eyeglass lens of the lens to be inspected can be freely moved in a plane at least in the X-axis direction. According to another aspect of the present invention, the holding mechanism dedicated to the spectacle lens is configured to be mounted under a relationship crossing the optical axis of the measuring optical system in the optical device body, or the dedicated holding mechanism is an X-axis slider member. And a Y-axis slider member.

The present invention proposes a new mechanism for holding a lens to be tested, which replaces a mounting table for a lens to be tested as in a conventional optical apparatus, and includes a lens for eyeglasses and an unprocessed round lens framed in a frame for eyeglasses. A lens to be inspected is provided, and a lens holding mechanism for directly and mechanically holding the eyeglass lens or the round lens framed in the eyeglass frame is provided, and at least the temple of the eyeglass frame is raised upward. The holding mechanism is further configured to be slidable at least in the X-axis direction in a plane intersecting the optical axis of the optical device main body, and is provided with the holding mechanism. As long as the optical device is characterized by being composed of a lens, the optical device can reliably achieve a low floor and a compact size, and the lens to be inspected can be mechanically mounted. Can be held to not only improve its operability is ensured, it is possible to obtain a stable accuracy on the movement of the operation and a test lens,
A highly reliable optical device can be provided.
Further, as a lens to be inspected having a different form, it is possible to cope with both a spectacle lens framed in a spectacle frame and an unprocessed round lens while using a single optical apparatus, so Not only can the disadvantages of the prior art relating to the mounting table be improved, but the fact that it is possible to respond to a different type of lens to be inspected by a single unit is an economical viewpoint related to the equipment cost of optical equipment. The present invention can provide an optical apparatus which is excellent in economy and practicality, for example, is very advantageous, and requires only a small installation space for the optical apparatus.

In particular, even when the test lens is limited to the spectacle lens framed in the spectacle frame, the holding mechanism has at least the X-axis direction in a plane crossing the optical axis of the optical device main body. As a holding mechanism of the test lens configured to be freely slidable, an X-axis direction slide shaft arranged at a predetermined interval in parallel with each other, and first and second X-axis direction slide shafts are respectively provided. X-axis slider member is slidably provided, and a Y-axis direction slide rail member is attached in a perpendicular relationship to the X-axis direction slide shaft so as to straddle between the first and second X-axis slider members, This Y-axis slide rail member includes:
A first Y-axis slider member having an eyeglass lens frame receiving portion formed at an end on the side of the first X-axis slider member is slidably combined, and the nose of the eyeglass frame is further moved relative to the first Y-axis slider member. A second Y-axis slider member having a nosepiece receiving portion corresponding to the abutting portion is overlapped and relatively slidably combined with each other, and the nosepiece receiving member of the second Y-axis slider member is connected to the second Y-axis slider member. A first urging spring for urging the one Y-axis slider member toward the spectacle lens frame receiving portion, and moving the first Y-axis slider member to a predetermined position in the direction of the first X-axis slider member. Providing a second biasing spring for biasing, the spectacle frame by the spectacle lens frame receiving portion and the nosepiece receiving portion, making it possible to mechanically hold the temple in a state where its temple is raised upward, further, Up The first Y-axis slider member is configured to move along the Y-axis against the second biasing spring and along the X-axis guided by the slide shaft, so that a holding mechanism dedicated to the spectacle lens is configured to be movable. Since the optical device main body is provided with a holding mechanism dedicated to the spectacle lens, the mounting direction of the lens to be inspected and the dimension in the height direction caused by the spectacle pair (temple) can be eliminated. It goes without saying that an excellent effect of achieving a lower floor and a smaller size as an optical device is exhibited.
In addition, as a holding mechanism for the lens to be inspected, the eyeglass frame can be securely held mechanically, and in the state where the eyeglass frame is held, it can be freely and precisely in a plane at least in the X-axis direction. Since the positioning operation can be performed, it is possible to greatly improve the measurement accuracy and the operability as an optical apparatus, and also to exert an extremely practically useful excellent effect. .

In addition, if it is further added to the excellent characteristic configuration and effect of the present invention, it goes without saying that it is possible to abolish the mounting base of the lens to be inspected as in the conventional optical equipment, and in particular, the eyeglass frame. A lens holding mechanism capable of directly and mechanically holding a lens having a different shape, such as a spectacle lens or an unprocessed round lens, in any case. X-axis slide shafts arranged at a predetermined interval in parallel with each other, and the first and second X-axis slider members are slidably provided on each of these X-axis slide shafts, A Y-axis direction slide rail member is attached so as to extend between the first and second X-axis slider members in an orthogonal relationship with the X-axis direction slide shaft.
A first Y-axis slider member having an axial slide rail member formed with a spectacle lens frame receiving portion and a round lens receiving portion for receiving a part of the outer periphery of the round lens at an end on the first X-axis slider member side. Are slidably combined, and a nosepiece receiver corresponding to the nose pad of the spectacle frame and a round lens receiver for receiving a part of the outer periphery of the round lens are formed with respect to the first Y-axis slider member. A second Y-axis slider member is overlapped and relatively slidably combined, and a nosepiece receiving portion of the second Y-axis slider member is connected to an eyeglass lens frame receiving portion of the first Y-axis slider member. And a second urging spring for urging the first Y-axis slider member to a predetermined position in the direction of the first X-axis slider member. The eyeglass lens The eyeglass frame can be mechanically held by the lens receiving portion and the nosepiece receiving portion in a state where the temple is raised upward, while the round lens receiving portion and the second lens receiving portion in the first Y-axis slider member are provided. Similarly, the round lens can be mechanically held by the round lens receiving portion of the Y-axis slider member. Further, the first Y-axis slider member slides along the Y-axis against the second urging spring and slides. An eyeglass lens and a round lens shared type holding mechanism configured to be freely movable along the X axis guided by a shaft are configured, and the eyeglass lens and the round lens shared type holding mechanism are configured as an optical device main body. Because of this feature, it is possible to eliminate the need for the height dimension due to the spectacle table, and it is possible to reduce the floor as an optical device and to achieve a compact and compact device. It is a matter of course to.
In addition, the above-described holding mechanism of the test lens can mechanically hold the spectacle frame and the round lens almost in a substantially horizontal manner, and freely and precisely in the XY axis directions within the holding plane. In addition, since the alignment operation can be easily performed with any type of lens to be inspected, the measurement accuracy and the operability of the optical device can be greatly improved. It can exhibit excellent effects practically.
Further, when the holding mechanism shared by the spectacle lens and the round lens of the present invention is adopted as a holding mechanism of an optical device, it can be adapted to a lens to be inspected in a different form as the optical device. Although it is an optical equipment device, it can also serve as an optical device for two types of lenses to be inspected, and it is possible to achieve a significant cost reduction as optical equipment, and a low-cost device that is economically advantageous. It can be provided.

Further, the above-described holding mechanism dedicated to the spectacle lens of the present invention, or the holding mechanism shared by the spectacle lens and the round lens, may be used, for example, for observing the lens to be inspected due to the difference in the optical system built in the optical apparatus main body. By providing the apparatus with the optical system, it is possible to provide an excellent lens checker with small size, compactness, high accuracy and operability as specific optical equipment,
On the other hand, in addition to having a marking mechanism, when it is separately provided in a device equipped with a measuring optical system for the lens to be inspected, it is a compact and compact lens meter with excellent measurement accuracy and operability as specific optical equipment. Can be provided.
Also, in the operability as an optical apparatus, excellent functions can be enjoyed in any holding mechanism of the lens to be inspected, that is, mechanical holding effect and planar operation accuracy in the X-axis direction are improved, It goes without saying that the optical device can be a device having excellent observation and measurement accuracy.
Needless to say, since the apparatus as a whole is versatile even when viewed as a whole, it can be configured at low cost, so that it is possible to provide an apparatus that is excellent in economy and can provide an apparatus that is excellent in practicality.

FIG. 1 is an external view for explaining a conventional general lens meter. FIG. 2 is an external view of a lens checker employing the holding mechanism shared by the spectacle lens and the round lens of the present invention. FIG. 3 is a schematic explanatory plan view of a holding mechanism shared by the spectacle lens and the round lens of the present invention. FIG. 4 is an explanatory perspective view showing a stacked combination relationship of first and second Y-axis slider members in the present invention. FIG. 5 is an exemplary plan view illustrating a state in which an eyeglass frame is held corresponding to FIG. 3; FIG. 6 is a plan view showing a state in which a round lens is held corresponding to FIG.

FIG. 2 shows an example of application to a lens checker as an optical apparatus device according to an embodiment of the present invention, and FIG. 3 is an enlarged view of a holding mechanism part using a spectacle lens and a round lens as test lenses shown in FIGS. Hereinafter, the technical configuration and operation procedures will be described with reference to examples.
FIG. 2 is an overall configuration of a lens checker configured by attaching a holding mechanism 1 for both a spectacle lens and a round lens according to the present invention to a front surface of an apparatus main body 2a including an observation optical system as an optical apparatus. FIG. 5 is an explanatory perspective view showing a test lens set and held at the center of a base 2b in the apparatus main body 2a (in the case of the illustrated embodiment, the spectacle lens ML framed in a spectacle frame MF is ) Receives illumination light from the light source unit 3 from the back side, and transmits an image such as transmitted light or scattered light of the lens ML that receives the illumination light beam from the light source unit 3.
An image is taken by the light receiving unit 4 arranged opposite to the light source unit 3, and this image data is enlarged and displayed on a display screen of a PC or the like (not shown) so that hidden marks or scratches on the front surface or the rear surface of the lens to be inspected are removed. It is for observing images such as dirt, and the configuration and operation of these are basically the same as the functions of a generally known lens meter, but the features of this embodiment are as follows. The holding mechanism 1 for both the spectacle lens and the round lens, which will be described in detail,
a, which is mounted on the front surface in a substantially perpendicular relation to the optical axis of the observation optical system or in a planar relation having an appropriate crossing angle.

Although FIG. 2 shows an embodiment of a lens checker including an observation optical system as an optical device, a measuring light source for a lens to be measured is provided as an optical device, and a light beam transmitted through the lens is received. A so-called lens meter (not shown) provided with a measuring optical system for calculating the optical characteristics such as the power of the lens to be inspected from the optical data, similarly has a book on the front surface of the optical apparatus main body. It is needless to say that the spectacle lens holding mechanism 1 (excluding a round lens receiving portion described later) according to the present invention can be adopted, and it is needless to say that the holding mechanism 1 is included in the technical scope of the present invention.
Further, in the present invention, which is adaptable to different types of lenses to be inspected, such as a spectacle lens ML framed in a spectacle frame MF and an unprocessed round lens SL, the present invention is applicable to both the spectacle lens and the round lens. As one of the embodiments of the holding mechanism 1, in a plan view showing an example of schematic components in FIG. 3, for example, support frames 5a and 5b in the figure constitute the holding mechanism 1 of the present lens to be inspected. The supporting frames 5a and 5b have a simple shape in the illustrated embodiment. The shape of each component disclosed in FIG. 3 and the like is, of course, not limited to the shape shown in FIG. The are those that can also be shaped, it is free to perform its shape changed without departing from the essential structural requirements of the invention.

Then, X-axis direction slide shafts 6a, 6b arranged in parallel with each other at a predetermined interval with respect to the support frames 5a, 5b, and these slide shafts 6a, 6
b, a first X-axis slider member 9 and a second X-axis slider member 10 are slidably provided, and the X-axis slider member 9 and the X-axis slider member 10 are straddled between the first and second X-axis slider members 9 and 10. The Y-axis slide rail member 1 while maintaining the orthogonal relationship with the axial slide shafts 6a and 6b
The slide rail member 11 is attached to the eyeglass lens frame receiving portions 7a, 7a.
And the round lens receiving portion 8a for receiving a part of the outer periphery of the round lens SL with its own tip portion (the first X
The first Y-axis slider member 13 formed on the shaft slide member 9 side) is formed on the lower surface of a long main body portion having a longitudinally extending guide groove having a concave cross section, which is also referred to as a main body portion thereof. The first Y-axis slider member 13 has a substantially T-shaped overall planar shape, for example, as shown in the drawing.
In addition, the nose pad NP of the spectacle frame MF with respect to the first Y-axis slider member 13.
A second Y-axis slider member 14 having a nosepiece receiving portion 12 corresponding to the second lens member receiving portion 8b which is opposed to the round lens receiving portion and receives a part of the outer periphery of the round lens SL at a distal end thereof.
A guide projection formed into a convex cross section on the lower surface of its own base is fitted into the guide groove of the first Y-axis slider member 13, and these two slider members 13 and 14 are combined so as to overlap each other and stacked on each other. It is characterized by being relatively slidable in the state.

That is, these first and second Y-axis slider members 13 and 14 are long box-shaped main bodies which are slidably combined along a slide rail member 11, as can be understood from FIG. A second Y-axis slider member 13 having a small fitting sliding portion
The axis slider members 14 are superposed in two stages so as to be relatively movable in a drawer-like manner, and the latter Y-axis slider member 14 is a first biasing spring interposed between the former Y-axis slider member 13. 15, the nosepiece receiving portion 12 at the distal end is always urged in the direction of the first X-axis slider member 9 so as to approach the spectacle frame receiving portions 7a, 7a and the round lens receiving portion 8a formed on the former. At the same time, the former Y-axis slider member 13 is also always moved by the second urging spring 16 interposed between the extension knob 10a of the second X-axis slider member 10 and the former Y-axis slider member 13. The second Y-axis slider member 14 is set so as to be pressed toward a predetermined position in the direction of the first X-axis slider member 10.
In the drawings, reference numerals 13a and 14a denote operation knobs provided on the first Y-axis slider member 13 and operation knobs provided on the second Y-axis slider member 14, respectively. The operation using the knobs 13a and 14a and the operation procedure will be described.
Is moved forward along the slide rail 11 against the second biasing spring 16, whereby the lens to be inspected (the frame on the spectacle frame) is set between the first and second Y-axis slider members 13 and 14. The position of the inserted spectacle lens ML or the round lens SL may be adjusted in the Y-axis direction, and the latter operation knob 14a may be moved by the repulsive force of the first biasing spring 15. By moving the second Y-axis slider member 14 along the first Y-axis slider member 13 while compressing the nose piece, the nosepiece receiving portion 12 and the round lens receiving portion 8b formed at the distal end thereof are moved. It is characterized in that it is configured to be able to move backward in the Y-axis direction and mechanically hold and operate either the spectacle frame MF or the round lens SL. In the drawing, reference numeral 17 denotes a knob for adjusting the amount of light emitted from the light source 3.

Further, in the present invention, the eyeglasses MT of the eyeglass frame MF are kept upright as shown in FIGS. Since the frame can be held, for example, in a substantially horizontal state, the spectacle frame MF can be mechanically held without using a lens mounting table generally used in the related art. Since the dimension in the height direction which has been required so far can be made unnecessary without any need, the height direction of the corresponding optical apparatus (the lens checker in the case of the embodiment of FIG. 2) can be used. Therefore, it is possible to reduce the floor size of the optical device, to achieve a reduction in the size of the entire device, and to obtain an advantageous configuration that does not take up installation space as an optical device.

The operation procedure in the X-axis direction and the Y-axis direction in the lens checker of FIG. 2 provided with the lens holding mechanism 1 for a test lens according to the present invention configured as described above will be briefly described below.
First, when moving the left and right spectacle lenses ML framed in the spectacle frame MF in the X-axis direction, the spectacle frame receiving portions 7a and 7a of the first Y-axis slider member 13 and the second Y-axis slider member While holding the spectacle frame MF by the nosepiece receiving member 14 as shown in FIG. 5, the grip portion 10 a of the extended portion provided on the second X-axis slider member 10 is grasped with a fingertip, and left and right manually. By moving in the direction, the left and right spectacle lenses framed in the spectacle frame MF can be alternately switched to coincide with the optical axis of the observation optical system, and the position adjustment in the X-axis direction in the same plane can be performed. Can be easily and easily performed with high precision. Therefore, by incorporating the holding mechanism 1 for the lens to be inspected into the optical device, the optical device can be formed. And improved performance, it is assumed that can exhibit an excellent effect that can perform simultaneously improve operability, it is possible to provide an excellent apparatus in practical.
In addition, during this sliding operation, the eyeglasses MT of the eyeglasses frame MF remain in an upright state, so that they do not come into contact with the support frames 5a and 5b, and the upper light receiving unit 4 is also in the frame. It does not interfere because it only needs to be moved.

On the other hand, similarly, when the left and right eyeglass lenses ML framed in the eyeglass frame MF as shown in FIG. 5 are slightly moved in the Y-axis direction as needed, the eyeglass frame MF is moved to the first and second eyeglasses. The first Y-axis slider member 1 is held by the two Y-axis slider members 13 and 14.
3 is moved along the slide rail member 11 in the Y-axis direction by grasping the operation knob 13a extended at the end of the third member and pulling the operation knob 13a forward against the second biasing spring 16. Therefore, the first Y-axis slider member 13 can be appropriately moved in the Y-axis direction together with the second Y-axis slider member 14, so that the slide operation for adjusting the position of the observation optical system with respect to the optical axis in the Y-axis direction can be performed. It can be done simply and easily, with good precision. Note that the spectacle lens MT that has been raised upward does not cause an obstacle to the light receiving unit 4 as in the previous case.
If it is not necessary, the moving operation in the Y-axis direction is not performed. However, since the positional relationship between the center of the spectacle lens and the center of a round lens, which will be described later, differs depending on the size of the lens to be inspected, any one of the lens centers is moved along the optical axis. In such a case, the above operation may be performed.

As described above, the case where the holding mechanism 1 of the present invention uses the spectacle lens framed in the spectacle frame MF as the test lens has been described. Another major feature of the present invention is that the spectacle lens framed in the spectacle frame MF is tested. The holding mechanism 1 is not limited to a lens, and as is apparent from the illustrated embodiment, the unprocessed round lens SL can be used as a lens to be tested. The operation and effect will be described.
That is, when the unprocessed round lens SL is used as the lens to be inspected, as shown in the plan view of FIG. 6, the first Y-axis slider member 13 includes the eyeglass lens frame receiving portions 7a and 7a. A round lens receiving portion 8a for receiving a part of the outer peripheral portion of the round lens SL with a slight step corresponding to the thickness of the spectacle frame and the dimensional difference associated with the nosepiece NP, and the second Y-axis slider member 14 In addition to the nosepiece receiving portion 12, a round lens receiving portion 8b for receiving a part of the outer periphery of the round lens SL with a slight step is formed in addition to the nosepiece receiving portion 12, so that the Y-axis slider is opposed to the biasing spring 15. By pulling the member 14 in the direction of the knob 10a, the distance between the first Y-axis slider member 13 and the second Y-axis slider member 14 is increased, and the respective round lens receiving portions 8a and 8b
6, the round lens SL can be reliably held horizontally as shown in FIG. 6, and the operation of sliding the round lens SL in the X-axis direction and the Y-axis direction is the same as the eyeglasses described above. Since the operation procedure is exactly the same as that in the case where the lens is a test lens, the details are omitted.
Incidentally, when the round lens SL is held flat as shown in FIG. 6, the Y-axis direction slide rail member 11 supporting the Y-axis slider member 13 is interposed at the center position of the round lens SL. The hidden mark to be observed itself is not marked at the center of the lens, and generally exists near the periphery of the round lens, so there is no effect on observing it and it does not hinder the observation work. .

As described above, the holding mechanism 1 of the present invention is an eyeglass lens and an unprocessed round lens framed in different types of eyeglass frames MF, while the holding mechanism 1 itself is a single lens to be inspected. The fact that the SL can perform a necessary and sufficient function as a holding mechanism for both lenses to be inspected can be achieved by assembling and adopting this as an optical device, while being a single optical device, A general-purpose optical device (especially a lens checker) corresponding to the lens to be inspected can be used, so that it is not necessary to provide a conventionally expensive optical device for each of the different forms of the lens to be inspected. Excellent optical equipment (especially a lens checker) can be provided at a low cost, and the economic merit is extremely large.
Although the illustrated holding mechanism 1 of the present invention is provided with the round lens receiving portions 8a and 8b for holding the lens to be inspected in different forms, the case where there is no need to deal with the unprocessed lens is described. Are eyeglass frame receivers 7a, 7 necessary as an optical device (lens checker or lens meter) using only the eyeglass lens framed in the eyeglass frame MF as a lens to be inspected.
a and the nosepiece receiving portion 12 can also be provided. In this case, it can be said that the spectacle frame (temple) MT of the spectacle frame, which is a feature of the basic form of holding the spectacle frame in the present invention, is also provided. With a mechanical structure that can be held in a state where the optical device is directed upward, a low floor of the height direction of the optical apparatus with the elimination of the conventionally used protruding lens mounting table. Needless to say, it is possible to achieve the effect of achieving miniaturization and compactness of the entire device.

In addition, in the embodiment shown in FIG. 2 described in detail above, the case of the lens checker having the observation optical system as the optical device is illustrated, but the lens meter having the measurement engineering system as the optical device is provided. In the case of (1), since the slide rail member 11 in the Y-axis direction exists at the center position of the unprocessed round lens, when the round lens SL is used as the lens to be tested, the transmitted light flux at the center of the round lens SL becomes an obstacle. Although it is not suitable to use the transmitted light flux in the center portion, when the spectacle lens framed in the spectacle frame is used as the test lens, the slide rail member 11 in the Y-axis direction is used without any obstacle. Therefore, the optical device having the measuring optical system for the test lens framed in the spectacle frame can exhibit the above-described effects.

The holding mechanism for the lens to be inspected according to the present invention is a holding mechanism that can hold the lens to be inspected mechanically and horizontally, and as an optical apparatus that requires this holding mechanism, specifically, a lens checker and It can be used as a lens meter or the like.

1 Holding mechanism 6a for both spectacle lens and round lens X-axis slide shaft 6b X-axis slide shaft 7a Spectacle lens frame receiver 8a Round lens receiver 8b Round lens receiver 9 First X-axis slider member 10 Second X-axis slider member 11 Y-axis direction slide rail member 12 Nosepiece receiving portion 13 First Y-axis slider member 14 Second Y-axis slider member 15 Urging spring 16 Urging spring

Claims (5)

An optical device that uses a spectacle lens and an unprocessed round lens framed in a spectacle frame as a test lens, the holding mechanism shared by the spectacle frame and the round lens, with the temples of the spectacle frame standing up. While holding, the round lens is configured to mechanically hold each with the convex surface facing downward, and this holding mechanism slides at least in the X-axis direction in a plane intersecting the optical axis of the optical apparatus main body. An optical apparatus, which is configured to be operable, and wherein the holding mechanism is integrally provided at a predetermined position in an optical apparatus main body. A holding mechanism using the spectacle lens framed in the spectacle frame as a lens to be inspected holds the spectacle lens to be held at least at a predetermined interval so as to be slidable at least in the X-axis direction, and is arranged in parallel with each other. The first and second X-axis slider members are slidably provided on each of the slide shafts extended in the X-axis direction and the respective X-axis direction slide shafts. A Y-axis direction slide rail member is attached to the X-axis direction slide shaft so as to extend between the axis slider members, and the Y-axis direction slide rail member has an end on the first X-axis slider member side. A slidable combination of a first Y-axis slider member formed with a spectacle lens frame receiving portion, and further with respect to the first Y-axis slider member,
A second Y-axis slider member formed with a nosepiece receiving portion corresponding to a nose pad of an eyeglass frame is overlapped and relatively slidably combined, and a nosepiece receiving member of the second Y-axis slider member is provided. A first urging spring for urging the member toward the spectacle lens frame receiving portion of the first Y-axis slider member, and a first urging spring for urging the first Y-axis slider member in the direction of the first X-axis slider member A second biasing spring is provided for biasing the eyeglass frame to the position, and the eyeglass frame can be mechanically held by the above-mentioned eyeglass lens frame receiving portion and the nosepiece receiving portion in a state where its temple is raised upward. Further, the spectacle lens is configured such that the first Y-axis slider member is movable along the Y-axis against the second urging spring and along the X-axis guided by the slide shaft. designated Is configured as a holding mechanism, the optical instrument according to claim 1, wherein the provided with the holding mechanism of the spectacle lens dedicated to a predetermined position of the optical device body. The holding mechanism using the spectacle lens and the unprocessed round lens framed in the spectacle frame as the test lenses holds the test lenses of different forms to be held in at least the X-axis direction so as to be slidable. For this purpose, a slide shaft arranged in parallel with each other at a predetermined distance and extending in the X-axis direction, and a first and second X-axis
An axis slider member is slidably provided, and a Y axis direction slide rail member is attached so as to extend between the first and second X axis slider members in an orthogonal relationship with the X axis direction slide shaft. A first Y-axis slider member having an axial slide rail member formed with a spectacle lens frame receiving portion and a round lens receiving portion for receiving a part of the outer periphery of the round lens at an end on the first X-axis slider member side. Are slidably combined, and a nosepiece receiver corresponding to the nose pad of the spectacle frame and a round lens receiver for receiving a part of the outer periphery of the round lens are formed on the first Y-axis slider member. A second Y-axis slider member is overlapped and relatively slidably combined, and the nosepiece receiving member of the second Y-axis slider member is connected to the first Y-axis slider member.
A first urging spring for urging the axial slider member toward the spectacle lens frame receiving portion, and urging the first Y-axis slider member to a predetermined position in the direction of the first X-axis slider member. A second urging spring for allowing the eyeglass frame to be mechanically held by the eyeglass lens frame receiving portion and the nosepiece receiving portion in a state where its temple is raised upward, while the first The round lens receiving portion of the Y-axis slider member and the round lens receiving portion of the second Y-axis slider member can similarly hold the round lens, and the first Y-axis slider member can be used as a second biasing spring. Oppositely along the Y-axis and along the X-axis guided by the slide shaft, the holding mechanism is configured as a common holding mechanism for the eyeglass lens and the round lens, which are configured to be movable. Optics apparatus being characterized in that provided in a predetermined position of the optical device body. An optical device for observing or inspecting the front or rear surface of a spectacle lens and a round lens before processing, etc., framed in a spectacle frame, and irradiating the test lens from the back. A light source and an observation optical system including an imaging unit for receiving and imaging the light beam irradiated on the lens to be inspected are employed, and the spectacle frame is mounted on the front surface of the optical apparatus main body including the observation optical system. While the temple can be held mechanically while being raised upward, the round lens cannot be held similarly, and these test lenses can be planarly moved at least in the X-axis direction. A lens that is integrally formed as a holding mechanism shared by the spectacle lens and the round lens by being attached under a relationship crossing the optical axis of the observation optical system in the optical device body. Ekka or lens checker, wherein the sharing of the holding mechanism is a holding mechanism according 3 claims. An optical apparatus for measuring an optical characteristic such as a diopter of a spectacle lens framed in a spectacle frame as a test lens, and a light source for transmitting the test lens from a back surface, A measuring optical system that serves as a measuring and calculating means for measuring the optical characteristics by receiving the transmitted light beam transmitted through the lens is adopted, and on the front of the optical device main body including the measuring optical system,
The spectacle frame can be mechanically held while the temple is raised upward, and the spectacle lens of the lens to be inspected can be freely moved in at least the X-axis direction in a plane, so that the spectacle lens is dedicated to the spectacle lens. 3. The lens meter according to claim 2, wherein the holding mechanism is a lens meter or an exclusive holding mechanism which is mounted and integrated under a relationship crossing the optical axis of the measuring optical system in the optical device body. A lens meter characterized by a mechanism.