JP2000221112A - Spectroscopic characteristics measuring equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute measurement of optical characteristics automatically, while positioning the measuring part of various lenses to be measured accurately. SOLUTION: An optical characteristics measuring equipment for lens comprising a lens arranging section 3 for inserting a lens to be inspected, and an optical system for measuring the optical characteristics by transmitting a measuring light from a light source 14 through a part being measured of the inserted lens is further provided with a microswitch 9, for detecting insertion of the lens disposed on the periphery of a measuring light passing hole, i.e., a receiving hole part 11, at the lens arranging section 3 and causing the light source 14 of the measuring optical system to emit light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical characteristic measuring device for measuring spectral characteristics of spectacle lenses and the like, particularly, transmittance.

[0002]

2. Description of the Related Art Conventionally, as an optical characteristic measuring device for measuring optical characteristics of a lens to be inspected used for producing spectacles, in particular, a spectral transmittance, for example, an objective lens to be measured is provided with an opening for measurement provided in a device main body. By operating the measurement switch, the measurement light beam from the light source is transmitted through the lens to be measured,
Further, there has been known a device in which light is received by a light receiving element to measure the spectral transmittance and the like of the test lens. Further, the actual condition is that the examiner operates the operation switch each time to perform the calibration for eliminating the influence of the disturbance.

[0003]

However, in the case of the above-mentioned conventional optical characteristic measuring apparatus, a measurer holds a lens to be measured and operates a measuring switch provided on the apparatus main body to cause a light source to emit light to perform measurement. Therefore, the examiner must use both hands, and there is a problem that the measurement operation is complicated and the operability is poor.

Further, in the case of the conventional optical characteristic measuring apparatus, it is difficult to accurately specify and measure different measurement sites depending on various types of lenses to be inspected, and it is also necessary to perform positioning when measuring the same type of lenses to be inspected. There was also a problem that the reproducibility of was poor. Further, the operation of performing calibration is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to automatically measure spectral characteristics while accurately positioning measurement sites of various types of lenses to be measured, thereby improving measurement accuracy and improving operation. Another object of the present invention is to provide a spectral characteristic measuring apparatus which has good performance and can automatically execute calibration.

[0006]

According to the first aspect of the present invention,
It has a lens placement part into which the test lens is inserted, and transmits the measurement light from the light source to the measurement part of the test lens inserted into the lens placement part via the positioning member of the measurement part to measure the spectral characteristics. In a spectral characteristic measuring apparatus equipped with a measuring optical system, a light source of the measuring optical system emits light by detecting that the positioning member provided at a position around a measurement light passage hole in the lens disposing portion is inserted into a fixed position. And a lens insertion detecting means for causing the lens to be inserted.

According to the present invention, the positioning member is inserted into the fixed position by the lens insertion detecting means provided at the peripheral position of the measurement light passage hole in the lens arrangement portion, ie,
It detects that the measurement light can be transmitted to the measurement site of the lens to be measured and causes the light source of the measurement optical system to emit light to perform measurement. The spectral characteristics can be automatically measured simply by inserting the lens to be inspected through the interface, and a spectral characteristics measuring device with good operability can be provided.

According to a second aspect of the present invention, in the spectral characteristic measuring apparatus according to the first aspect, the lens insertion detecting means includes:
It is characterized in that the light source of the measuring optical system emits light upon detecting the insertion of a positioning ring, which is aligned with the mark provided on the test lens, into a fixed position.

According to the present invention, the spectral characteristic can be automatically measured by using the positioning ring positioned at the mark attached to the lens to be inspected, and a spectral characteristic measuring apparatus with good operability is provided. can do.

According to a third aspect of the present invention, there is provided a concave lens arrangement portion into which a lens to be inspected is inserted, and a measurement light from a light source is transmitted through a measurement site of the lens to be inspected inserted into the lens arrangement portion. In a spectral characteristic measuring apparatus equipped with a measuring optical system for measuring spectral characteristics, a lens diameter setting means for setting a lens diameter of the lens to be inspected, and a lens diameter setting unit in a position opposed to a measurement light passage hole in the concave lens arrangement part. Light irradiating means for emitting the arranged lens irradiating light, and lens insertion detection sensors radially arranged at a plurality of positions around the measurement light passage hole in the lens arranging section, When the lens is inserted, the edge of a plurality of positions of the test lens having the lens diameter set by the lens diameter setting unit is changed by the difference in transmittance of the lens irradiation light from the light irradiation unit. It is characterized in that is detected by the lens insertion detecting sensor utilized with specifying the center position of the lens to emit the measurement optical system of the light source.

According to the present invention, when the test lens is inserted into the lens arrangement portion, the edge of the test lens having the lens diameter set by the lens diameter setting means is detected by the insertion detection sensor at a plurality of positions. Since the center position is specified and the light source of the measuring optical system emits light in this state to perform the measurement, the center position is specified simply by inserting the test lens into the lens placement section, and the spectral characteristics are automatically determined. Since the measurement can be performed, it is possible to provide a spectral characteristic measuring apparatus in which the measurement accuracy with respect to the center position of the test lens is improved and the operability is good.

According to a fourth aspect of the present invention, in the spectral characteristic measuring device according to the third aspect, the lens insertion detecting sensor uses a difference in light transmittance of a plurality of edges of the lens to be inspected. The present invention is characterized in that a center position of a lens to be measured having a diameter can be specified.

According to the present invention, the center of the lens to be measured having an arbitrary diameter is specified by using the lens insertion detection sensor in the spectral characteristic measuring apparatus according to the third aspect, and the light source of the measuring optical system emits light to perform measurement. Can be executed.

According to a fifth aspect of the present invention, there is provided a lens disposing portion into which the lens to be inspected is inserted, and the measuring light from the light source is transmitted through the measuring portion of the lens to be inserted inserted into the lens disposing portion to thereby improve the spectral characteristic. In a spectral characteristic measuring apparatus equipped with a measuring optical system for measuring the lens diameter, a lens diameter setting means for setting a lens diameter of the lens to be inspected, and a lens diameter set by the lens diameter setting means below the lens disposing portion. A lens receiving / measuring switch mechanism for supporting the subject lens and for emitting the light source of the measuring optical system when the subject lens having the lens diameter set by the lens diameter setting means is mounted so as to be movable to the position shown in FIG. And a part.

According to the present invention, the lens diameter of the lens to be measured is set by the lens diameter setting means, and the lens having the lens diameter is inserted into the lens disposition portion. Since the light is emitted from the light source of the measurement optical system and the measurement is performed while supporting the test lens by the operation, the measurement of the spectral characteristics of the test lenses having different diameters can be performed with good operability.

According to a sixth aspect of the present invention, there is provided a measurement optical system which includes a lens arrangement portion into which a lens to be inspected is inserted, and which transmits the measurement light to the lens to be inspected inserted into the lens arrangement portion to measure spectral characteristics. In a spectral characteristic measuring apparatus for a test lens equipped with: a lens diameter setting means for setting a lens diameter of the test lens; a measurement part setting means for setting a measurement part from a reference position of the test lens; In the lower part of the lens disposition unit, a position corresponding to the lens diameter set by the lens diameter setting means and a position corresponding to the position of the measurement part from the reference position set by the measurement part setting means are movably disposed, and When the test lens having the lens diameter set by the lens diameter setting means is mounted, the test lens is supported at the position set by the measurement site setting means while supporting the test lens. A lens receiving / measuring switch mechanism for moving the measurement site to emit light from the light source of the measurement optical system, and a measurement execution state for the measurement site of the test lens in conjunction with the operation of the lens receiving / measuring switch mechanism And a measurement state display section for displaying

According to the present invention, the lens diameter of the lens to be measured is set by the lens diameter setting means, the measurement part from the reference position of the lens to be measured is set by the measurement part setting means, and the lens is set in the lens arrangement part. By inserting the lens having the diameter to be measured, the lens receiving and measuring switch mechanism is operated to support the lens to be measured having the lens diameter, and to set the measuring part of the lens to be measured at the position set by the measuring part setting means. Is moved to cause the light source of the measurement optical system to emit light to execute the measurement, so that the measurement of the spectral characteristics of desired portions of the various types of lenses to be measured can be executed with good operability. Also,
Since the measurement state display unit displays the measurement execution state for the measurement site of the test lens, it is possible to clearly recognize that the measurement has actually been performed on the test lens.

According to a seventh aspect of the present invention, in the spectral characteristic measuring apparatus according to the sixth aspect, the measuring portion setting means includes a measuring portion extending over a distance portion or a near portion of the lens to be inspected comprising a progressive lens. It is characterized in that a plurality of measurement sites of a test lens formed of a focusing lens and a desired measurement site including an eye point of a test lens formed of a half-stained lens are set.

According to this invention, the measurement site set by the measurement site setting means in the invention according to claim 6 is a distance portion or a near portion of a progressive lens, a plurality of measurement portions of a multifocal lens, a half-staining. Since it is a desired measurement site including the eye point of the lens, measurement of spectral characteristics of a desired site of various types of lenses to be inspected such as a progressive lens, a multifocal lens, and a half-stained lens can be performed with good operability.

The invention according to claim 8 is provided with a lens arrangement portion into which the lens to be inspected is inserted, and transmits the measurement light from the light source to the measurement site of the lens to be inspected inserted into the lens arrangement portion to thereby provide spectral characteristics. In a spectral characteristic measuring apparatus equipped with a measuring optical system for measuring the lens arrangement, a lid for covering the lens arrangement section, a lid open / close detection section for detecting whether the lid is open or closed, and the lens arrangement section Lens insertion detection sensors radially arranged at a plurality of locations around the measurement light passage hole, and the measurement optical system when the lid is changed from the closed state to the open state based on the detection result of the lid opening / closing detection unit. And control means for prompting manual calibration by executing automatic calibration or displaying a calibration request.

According to the present invention, the calibration is automatically executed when the lid of the spectral characteristic measuring device is turned to the closed state, and the execution of the manual calibration by displaying the calibration request is also performed. So, the temperature change with respect to the spectral characteristic measuring device with the lid,
It is possible to always avoid the influence of disturbance such as entry of external light.

According to a ninth aspect of the present invention, there is provided a lens arrangement portion into which the lens to be inspected is inserted, and the measurement light from the light source is transmitted through the measurement site of the lens to be inspected inserted into the lens arrangement portion to thereby provide spectral characteristics. In a spectral characteristic measuring apparatus equipped with a measuring optical system for measuring a lens insertion detecting means for detecting the presence or absence of insertion of a test lens provided at a peripheral position of the lens disposing portion, and a detection result of the lens insertion detecting means being a lens A control means for prompting manual calibration by executing automatic calibration of the measuring optical system or by displaying a calibration request at predetermined time intervals after switching from the presence to the absence of a lens.

According to the present invention, the automatic calibration of the spectral characteristic measuring device is executed and the calibration is prompted by the display of the calibration request. It is possible to always avoid the influence of disturbance such as intrusion, and to exert a function of measuring the stable spectral characteristics of the test lens.

[0024]

Embodiments of the present invention will be described below in detail.

(Embodiment 1) FIGS. 1 to 6 show a spectral transmittance meter 1 which is an example of a spectral characteristic measuring apparatus according to Embodiment 1 of the present invention.

The spectral transmittance meter 1 has a substantially rectangular parallelepiped main body 2, and a concave portion is provided at a substantially central portion of the main body 2 so as to face an optical path L of a measuring optical system for measuring spectral transmittance, which will be described in detail later. The lens arrangement part 3 of a shape is provided. 2a is the main body 2
It is a leg provided at the bottom of the.

As shown in FIG. 2, a measuring lamp 4 and a calibration lamp 5 are arranged on the upper surface of the main body 2.

It goes without saying that a measurement switch 28 and a calibration switch 29 for manual operation may be provided on the upper surface of the main body 2.

The lens disposing portion 3 is provided with a receiving hole portion 11 having a circular cylindrical protruding cylindrical portion 11a which is located on the left side in FIG. An emission port 12 for the measurement light beam is provided on the side facing the hole 11. The bottom 3a of the lens arrangement section 3 is formed flat.

As shown in FIG. 4, the receiving hole 11 of the lens disposing portion 3 is operated by mounting a positioning ring 25 to be described later to detect the insertion of the lens 10 to be measured. A micro switch 9 is disposed as a lens insertion detecting means for causing the light source 14 to emit light. As the micro switch 9, for example, the receiving hole 1
If three micro-switches 9 are installed in the vicinity of 1 and arranged at 120 degrees, and all three micro switches 9 are operated, the light source 14 of the measuring optical system emits light, so that a reliable measuring operation can be performed.

Next, referring to FIG.
Will be described.

As shown in FIG. 3, the spectral transmittance meter 1 includes a region on the right side of the injection port 12 in the main body 2,
The measuring optical system is arranged over the lens disposing part 3 and the area on the left side of the receiving part 11.

The measuring optical system includes a first mirror 15 for reflecting a measuring light from a light source 14 such as a xenon lamp for emitting a measuring light of a predetermined wavelength, and a measuring light beam from the first mirror 15 to the exit port. A lens 16 for emitting the light from the lens 12 toward the receiving hole 11; an integrating sphere 17 for receiving the measuring light beam from the lens 16 and emitting the infrared and visible light spectrum from the opening 17a; And the second mirror 18 that reflects the spectrum of visible light
A diffraction grating 19 that diffracts the spectrum from the second mirror 18 and separates the spectrum for each wavelength component; a third mirror 20 that reflects light from the diffraction grating 19; A light receiving element 21 for converting the light into a signal.

The integrating sphere 17, the second mirror 18, the diffraction grating 19, the third mirror 20, and the light receiving element 21 are fixedly supported at fixed positions by a support member 23.

In the spectral transmittance meter 1 having the above configuration,
The positioning ring 25 for positioning a specific measurement site of the test lens 10 in the lens placement unit 3 will be described with reference to FIG.

First, as shown in FIG. 4, the measurer operates the test lens 1 attached to the lens surface of the test lens 10 in advance.
An annular positioning ring 2 made of a transparent material with reference to a mark 10a for displaying optical information (eg, optical center) of 0
This annular positioning ring 25 is adhered to the lens surface of the lens 10 to be inspected while the alignment mark 25a previously attached to the mark 5 is aligned with the mark 10a.

Then, the measurer holds the lens 10 to which the positioning ring 25 is attached, and fits the positioning ring 25 to the circular cylindrical projecting cylinder 11a of the receiving hole 11 as shown in FIG. I do.

In this state, the light source 14 is caused to emit light, thereby emitting measurement light having a predetermined wavelength, so that the measurement optical system measures the spectral transmittance of the lens 10 to be measured. .

FIG. 5 shows a control system of the spectral transmittance meter 1 according to the first embodiment, and a control unit 30 for performing overall control.
And the control unit 30 includes the microswitch 9 and the light source 1.
4. The light receiving element 21 is connected, and the light source 14 emits light when the microswitch 9 is turned on.

In the spectral transmittance meter 1 of the first embodiment, the measurer carries out the operation of holding the lens 10 to be tested and fitting the positioning ring 25 to the circular cylindrical protruding cylinder 11a of the receiving hole portion 11. The micro switch 9 is operated only by this, and the light source 14 automatically emits light. At this time, the measuring lamp 4
Lights up, and the measurer visually recognizes that the measurement on the test lens 10 is being performed.

This makes it possible to automatically measure the spectral transmittance, which is one of the optical characteristics of the test lens 10, without having to operate the measurement switch 28, and the operability is extremely good.

The lens 10 to be inspected is located on the positioning ring 2.
Since it is joined to the protruding cylinder 11a via 5, the influence of disturbance light can be avoided when measuring the lens 10 to be measured.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the spectral transmittance meter 1 having the same configuration as that of the first embodiment is used.

In the second embodiment, the receiving hole 1
As shown in FIGS. 6 and 7, a lens insertion detecting sensor 31 using a total of four line sensors radially arranged in a cross shape as shown in FIGS. At a position facing 31, an annular light source 32 and an annular diffusion plate 33, which are light irradiation means, are arranged in an overlapping manner.

As shown in FIG. 8, the control system according to the second embodiment includes a lens insertion detecting sensor 31 and an annular light source 3 instead of the microswitch 9 according to the first embodiment.
2 is connected.

Further, an input unit 34 as lens diameter setting means for setting the lens diameter (diameter 60 cm, 70 cm, 80 cm, etc.) of the lens 10 to be tested is connected to the control unit 30.

According to the spectral transmittance meter 1 of the second embodiment, after the annular light source 32 is turned on and the operator sets the lens diameter by the input unit 34, the test lens 1 having the lens diameter is set.
When the lens insertion detection sensor 31 is brought to the receiving portion 11 with the angle “0”, the lens insertion detection sensor 31 emits light from the annular light source 32 and diffuses through the annular diffuser plate 33, and does not transmit the light transmitted through the test lens 10. Edge (outer peripheral portion) detection is performed using the difference in transmittance with light.

That is, in this case, the lens insertion detection sensor 3
The transmittance characteristics of the light detected by the lens 1 are as shown in the upper part of FIG.
When 0 is a concave lens, it becomes as shown in the lower part of FIG.

As a result, the center position (for example, the optical center) of the lens 10 to be measured can be specified by judging the state in which the four line sensors constituting the lens insertion detection sensor 31 show the same transmittance characteristics. . In addition, the light source 14 of the measurement optical system is caused to emit light based on the detection result of the lens insertion detection sensor 31, so that the measurement of the lens 10 to be measured can be automatically performed, thereby improving the measurement accuracy.

FIG. 10 shows a modification of the lens insertion detection sensor 31, which is characterized in that four groups of photosensors 35 are arranged in a row in a cross-shaped radial arrangement.

In this case, the smallest circle shown in FIG.
cm), middle circle (diameter 70cm), maximum circle (diameter 80c)
m), three photosensors 35 are arranged at each of four positions at 90-degree intervals on the circumference of the circle, and a test lens having a diameter of 60 cm is formed by the four photosensors 35 arranged on the circumference of the smallest circle. 10 center positions (for example, optical centers) are specified. Further, the center position (for example, the optical center) of the test lens 10 having a diameter of 70 cm is specified by the four photosensors 35 arranged on the circumference of the intermediate circle. Further, the four photosensors 35 arranged on the circumference of the largest circle have a diameter of 68 cm.
The center position (for example, the optical center) of the test lens 10 is specified.

Other functions and effects are the same as those described above.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the spectral transmittance meter 1 having the same configuration as that of the first embodiment is used.

In the third embodiment, as shown in FIG. 11, an actuator 41 provided with a lens receiver 42 which operates in the vertical direction under the control of the control unit 30 on the bottom 3a of the lens arrangement unit 3 And a lens receiving / measuring switch mechanism 40 comprising a pressure switch 43 disposed on the lens receiver 42.

As shown in FIG. 12, the control unit 30 controls the lens diameter of the test lens 10 (diameter of 60 cm, 70 cm,
The input unit 34, which is a lens diameter setting means for setting the diameter of the actuator 80 and the like, is connected, and the actuator 41 and the pressure switch 43 are connected.

According to the spectral transmittance meter 1 of the third embodiment, the lens diameter is set by operating the input section 34, whereby the lens receiver 42 of the actuator 41 moves to a position corresponding to the lens diameter. Then, in this state, the test lens 10 having the lens diameter is inserted into the lens disposing portion 3 and fitted to the lens receiver 42, thereby supporting the test lens 10 by the lens receiver 42 and pressing the pressure switch 43. By turning on the light source 14, the light source 14 of the measurement optical system is caused to emit light, and the measurement can be automatically executed. Thereby, the diameter is 60cm, 70cm,
The measurement of the spectral transmittance of the test lenses 10 having different diameters such as 80 cm can be executed with extremely high operability.

(Embodiment 4) Next, FIGS.
Embodiment 4 of the present invention will be described with reference to FIG. In the fourth embodiment as well, basically the first embodiment is used.
In this case, a spectral transmittance meter 1 having the same configuration as that of the case 1 is used.

In the fourth embodiment, the third embodiment
However, the input unit 34 serving as the lens diameter setting unit is connected to a measurement site (for example, 5 mm from the optical center) from a specific reference position of the progressive lens 10A, which is a kind of the test lens 10. It is characterized by functioning as a measurement site setting means for setting.

That is, the progressive lens 10 is
By setting the lens diameter of A and setting the measurement site from the reference position of the progressive lens 10A, inserting the progressive lens 10A of the lens diameter into the lens disposing section 3 and fitting it into the lens receiver 42. , The progressive lens is set to 1 by the lens receiver 42.
Support 0A.

Then, the actuator 41 operates under the control of the control unit 30, and the lens receiver 42 moves so that the measurement site set by the input unit 34 faces the receiving hole 11.

In this state, the measurement can be automatically performed by causing the light source 14 of the measurement optical system to emit light under the control of the control unit 30 based on the ON operation of the pressure switch 43.

By such an operation, desired positions of the near portion, the intermediate portion, the far portion, etc. of the progressive lens 10A shown in FIG. 14 and the small lens portions 101, 104 of the multifocal lens 10B shown in FIG.
Eye point I of half-stained lens 10C shown in FIG.
For example, measurement of optical characteristics of desired portions of the lens 10 to be tested can be performed with good operability.

In this case, for example, a near lamp 6 or a far lamp 7 using an LED is added to the upper surface of the main body 2 having the structure shown in FIG. The near lamp 6 and the far lamp 7 can be turned on in conjunction with the operation or the movement of the actuator 41 to clearly inform the examiner of the measurement execution state of the optical characteristics for these parts. is there.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, basically, the spectral transmittance meter 1 having the same configuration as that of the first embodiment is used.

In the fifth embodiment, in addition to the structure of the spectral transmittance meter 1, as shown in FIG. 17, a lid 51 for covering the lens disposing portion 3 is provided, and For example, a micro switch 52 which is a lid open / close detection unit for detecting the open / closed state of the lid is provided in the open / close area of the lid 51 in the lens arrangement unit 3, and is controlled by the control unit 30 in the spectral transmittance meter 1. At power on, micro switch 5
2 detects when the lid 51 has changed from the closed state to the open state, and executes the calibration of the measuring optical system for a predetermined time under the control of the control unit 30.

Further, for example, a manual calibration switch 8a and a calibration promoting lamp 8b are provided on the upper surface of the main body 2 having the configuration shown in FIG. 2 described in the first embodiment, and the lid 51 is opened by the micro switch 52. For example, when the lens insertion detection sensor 31 does not detect the insertion of the test lens 10 from the point in time when the state is changed to the state, the calibration promoting lamp 8b blinks to prompt the manual calibration by the manual calibration switch 8a. Can also.

As a result, it is possible to always avoid the influence of disturbance such as temperature change and the entrance of external light on the spectral transmittance meter 1,
Good measurement characteristics can always be maintained.

Embodiment 6 Next, Embodiment 6 of the present invention will be described. The sixth embodiment basically uses the spectral transmittance meter 1 having the same configuration as that of the first embodiment.

In the sixth embodiment, for example, a control system similar to the control system shown in FIG. 5 of the first embodiment is employed, and based on the detection result of the lens 10 to be inspected by the microswitch 9, the detection result is obtained. The calibration of the measuring optical system is performed at a predetermined time interval after the lens changes from the state with the lens to the state without the lens, and the calibration is stopped when the detection result changes from the state without the lens to the state with the lens.

According to the sixth embodiment, the lens arrangement unit 3
In the state where there is no lens 10 to be tested, calibration is executed at predetermined time intervals, so that the influence of disturbance can be avoided.
Further, when the detection result turns to the presence of the lens, the calibration is immediately stopped, and the calibration is not performed erroneously even if the state of the presence of the lens continues. As a result, the influence of disturbance on the measurement optical system is obtained. And a stable measurement function for the test lens 10 can be exhibited.

In this case as well, for example, a manual calibration switch 8a and a calibration promoting lamp 8b are provided on the upper surface of the main body 2 having the structure shown in FIG.
After a predetermined period of time has elapsed after detecting that the test lens 10 has not been inserted, the calibration promoting lamp 8b may blink to prompt manual calibration by the manual calibration switch 8a.

FIG. 18 shows a spectral transmittance meter 1 of the present embodiment.
1 shows a lens meter 60 with a multi-function in which is integrated into a main body 61 having a display unit 62, a measuring unit 63, a key input unit 64 and the like.

According to such a lens meter 60, the measurement result of the spectral transmittance meter 1 for the test lens 10 is immediately displayed on the display unit 62 for use, or the transmission result of the spectacle frame equipped with a spectacle lens (not shown) is used. The measurement result of the rate can be displayed on the display unit 62, and the lens meter 60 can be displayed.
Function can be diversified.

(Embodiment 7) Next, FIGS.
A spectral characteristic measuring system according to Embodiment 7 of the present invention will be described with reference to FIG.

As shown in FIG. 19, the spectral characteristic measuring system according to the seventh embodiment is connected to the spectral transmittance meter 1 according to the third embodiment as shown in FIG. Lens meter 60 and computer device 90
Is provided.

The structure of the spectral transmittance meter 1 is the same as that of the third embodiment. The lens meter 80 includes a display unit 62, a measurement unit 63, a key input unit 64, and the like, as in the case shown in FIG. 18, and further includes a lens meter control unit 81.

The computer device 90 includes a display section 92 for displaying images, a main body control section 93, and an input section 94 for inputting various data. The spectral transmittance meter 1, the lens meter control unit 81, and the main body control unit 93 are connected to each other via the communication line 70.

The operation of this spectral characteristic measuring system is shown in FIG.
The following description will be made mainly with reference to FIG. 23 to FIG. 23, mainly showing the display of the measurement results of the spectral characteristics of the test lens 10.

FIG. 20 shows the spectral characteristics (spectral transmittance characteristics) of the lens 10 to be displayed displayed on the display unit 62 of the lens meter 60 (or the display unit 92 of the computer device 90).

In the example shown in FIG. 20, the wavelengths 280 to 31
5% UV (short wavelength ultraviolet) B value of 5%, UV (long wavelength ultraviolet) A value of 315 to 380 nm A value of 59%, graph G with the abscissa of these data on the horizontal axis and the transmittance on the vertical axis of the wavelength, measurement error Etc., a message column 62a, a function display section 62b, and the like are displayed.

FIG. 21 shows a chromaticity diagram according to the CIE standard. In this case, for example, the visual luminous transmittance Vis, the CIE chromaticity coordinate x value x = 0.314, the CIE
Data of the chromaticity coordinate y value y = 0.331, a CIE chromaticity diagram, a message column 62a for measurement errors, a function display unit 62b, and the like are displayed. Computer device 90
Is the same as that described above.

According to this spectral characteristic measuring system, the lens 10 and the computer
Since the measurement results of the spectral characteristics of are captured and displayed,
It is possible to easily use and grasp the measurement results of the spectral characteristics.

Next, an application example of the present invention will be described with reference to FIGS.

FIG. 22 shows a case where the spectral characteristics of the contact lens 100 are measured by the spectral transmittance meter 1 of each embodiment described above. In this case, the tweezers 105 and the like are attached to the contact lens holder 101. The contact lens 100 is placed and positioned using a transparent sheet 102, and the contact lens holder 10
1 is set in the lens disposing portion 3 as shown in the lower section of FIG. 22 so that the contact lens 100 does not move, and the spectral characteristics are measured in the same manner as described in this state. Thus, the measurement of the spectral characteristics can be performed with good operability in the same manner as described above for the contact lens 100.

FIG. 23 shows a spectacle lens 110 mounted on a frame 111 by the spectral transmittance meter 1 of each embodiment described above.
FIG. 4 shows a case where the spectral characteristics of the positioning ring 25 are measured in the same manner as in the case shown in FIG.
Is used to set the spectacle lens 110 in the lens arrangement section 3, and the spectral characteristics are measured in the same manner as described in this state. Thus, the measurement of the spectral characteristic can be performed with good operability in the same manner as described above for the spectacle lens 110 mounted on the frame 111.

[0086]

According to the first and second aspects of the present invention, the measurement of the optical characteristics of the test lens can be automatically performed only by inserting the test lens into the lens disposition portion, and the spectral characteristics with good operability can be obtained. A measuring device can be provided.

According to the third and fourth aspects of the present invention, the center position is specified simply by inserting a test lens having a known or arbitrary diameter into the lens arrangement portion, and the optical characteristics are automatically measured. Can be performed, and a spectral characteristic measuring apparatus with improved operability and improved measurement accuracy with respect to the center position of the test lens can be provided.

According to the fifth aspect of the present invention, it is possible to provide a spectral characteristic measuring apparatus capable of measuring the optical characteristics of the test lenses having different diameters with good operability.

According to the sixth aspect of the present invention, it is possible to provide a spectral characteristic measuring apparatus capable of measuring optical characteristics of desired portions of various kinds of lenses to be inspected with good operability.

According to the seventh aspect of the present invention, there is provided a spectral characteristic measuring apparatus capable of measuring optical characteristics of desired portions of various kinds of lenses to be inspected such as a progressive lens, a multifocal lens and a half-stained lens with good operability. Can be provided.

According to the eighth aspect of the present invention, a temperature change,
It is possible to provide a spectral characteristic measuring device that can always avoid the influence of disturbance such as the entrance of external light.

According to the ninth aspect of the present invention, it is possible to provide a spectral characteristic measuring apparatus capable of always exerting a stable measuring function on a test lens while always avoiding the influence of disturbance on the measuring optical system.

[Brief description of the drawings]

FIG. 1 is a front view showing a spectral transmittance meter according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the spectral transmittance meter according to the first embodiment of the present invention.

FIG. 3 is a partially cutaway sectional view showing the spectral transmittance meter according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram showing a positioning state of a test lens in the spectral transmittance meter according to the first embodiment of the present invention.

FIG. 5 is a block diagram illustrating a control system of the spectral transmittance meter according to the first embodiment of the present invention.

FIG. 6 is a partially cutaway sectional view of a spectral transmittance meter according to Embodiment 2 of the present invention.

FIG. 7 is an enlarged view showing a lens insertion detection sensor according to Embodiment 2 of the present invention.

FIG. 8 is a block diagram illustrating a control system of the spectral transmittance meter according to the second embodiment of the present invention.

FIG. 9 is a diagram illustrating transmittance characteristics of a convex lens and a concave lens according to Embodiment 2 of the present invention.

FIG. 10 is an enlarged view showing a modified example of the lens insertion detection sensor according to the second embodiment of the present invention.

FIG. 11 is a partially cutaway sectional view of a spectral transmittance meter according to Embodiment 3 of the present invention.

FIG. 12 is a block diagram illustrating a control system of the spectral transmittance meter according to the third embodiment of the present invention.

FIG. 13 is a partially cutaway sectional view of FIG.

FIG. 14 is a plan view showing a progressive lens according to Embodiment 4 of the present invention.

FIG. 15 is a plan view showing a multifocal lens according to Embodiment 4 of the present invention.

FIG. 16 is a plan view showing a half-stained lens according to Embodiment 4 of the present invention.

FIG. 17 is a schematic perspective view of a spectral transmittance meter according to Embodiment 5 of the present invention.

FIG. 18 is a perspective view showing a lens meter with a composite function incorporating the spectral transmittance meter according to the second embodiment of the present invention.

FIG. 19 is a block diagram illustrating a spectral transmittance measurement system according to a seventh embodiment of the present invention.

FIG. 20 is an explanatory diagram showing a display example of spectral characteristics according to the seventh embodiment.

FIG. 21 is an explanatory diagram showing another example of the display of the spectral characteristics of the seventh embodiment.

FIG. 22 is an explanatory diagram showing an application example regarding the contact lens of the present invention.

FIG. 23 is an explanatory diagram showing an application example of a spectacle lens already mounted on a frame according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spectral transmittance meter 2 Main body 3 Lens arrangement part 3a Bottom part 4 Measurement lamp 5 Calibration lamp 9 Micro switch 10 Test lens 10a Marking point 10A Progressive lens 10B Multifocal lens 10C Half stained lens 11 Receiving hole part 11a Projection cylinder part 12 Exit 14 Light source 17 Integrating sphere 19 Diffraction grating 21 Light receiving element 25 Positioning ring 30 Control unit 31 Lens insertion detection sensor 34 Input unit 35 Photosensor 40 Lens receiving and measuring switch mechanism 41 Actuator 42 Lens receiver 43 Pressure switch 51 Cover 52 Microswitch

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G020 AA03 AA04 CA02 CB04 CB13 CB32 CB42 CB43 CC02 CD03 CD22 2G086 FF06 HH02

Claims (9)

[Claims] 1. A lens placement section into which a test lens is inserted, wherein a measurement light from a light source is transmitted through a measurement section of the test lens inserted into the lens placement section via a positioning member for a measurement section. In a spectral characteristic measuring apparatus equipped with a measuring optical system for measuring spectral characteristics, the measuring optical system detects that the positioning member provided at a peripheral position of a measurement light passage hole in the lens disposing portion is inserted into a fixed position. 1. A spectral characteristic measuring apparatus, comprising: a lens insertion detecting unit for causing a system light source to emit light. 2. The apparatus according to claim 1, wherein said lens insertion detecting means detects the insertion of a positioning ring, which is aligned with a mark provided on the lens to be inspected, into a fixed position and causes the light source of said measuring optical system to emit light. The spectral characteristic measuring device according to claim 1. 3. A measurement for measuring a spectral characteristic by providing a concave lens arrangement portion into which a test lens is inserted, and transmitting measurement light from a light source to a measurement site of the test lens inserted into the lens mount portion. In a spectral characteristic measuring device equipped with an optical system, a lens diameter setting means for setting a lens diameter of the lens to be inspected, and a lens irradiation light arranged at a position facing a measurement light passage hole in the concave lens arrangement portion. Light emitting means for emitting light, and lens insertion detection sensors radially arranged at a plurality of positions around the measurement light passage hole in the lens arrangement section, when a lens to be inspected is inserted into the lens arrangement section The edges of a plurality of positions of the test lens having the lens diameter set by the lens diameter setting unit are inserted into the lens by using the difference in the transmittance of the lens irradiation light from the light irradiation unit. With specifying the center position of the lens detected by the detection sensor, spectroscopic characteristic measurement apparatus according to claim, thereby emitting the measurement optical system of the light source. 4. The lens insertion detection sensor is capable of specifying a center position of a lens having an arbitrary diameter by utilizing a difference in light transmittance of a plurality of edges of the lens to be inspected. The spectral characteristic measuring device according to claim 3. 5. A measurement optical system having a lens arrangement portion into which a test lens is inserted, and transmitting a measurement light from a light source to a measurement site of the test lens inserted into the lens arrangement portion to measure a spectral characteristic. A lens diameter setting unit for setting a lens diameter of the test lens, and a position corresponding to the lens diameter set by the lens diameter setting unit below the lens disposing portion. A lens receiving / measuring switch mechanism for supporting the test lens when the test lens having the lens diameter set by the lens diameter setting means is mounted and for emitting the light source of the measurement optical system; A spectral characteristic measuring device, comprising: 6. A spectral characteristic measuring apparatus having a lens arrangement section into which a test lens is inserted, and a measuring optical system for measuring a spectral characteristic by transmitting measurement light to the test lens inserted into the lens arrangement section. In the apparatus, a lens diameter setting unit that sets a lens diameter of the lens to be measured, a measurement region setting unit that sets a desired measurement region of the lens to be tested, and a lens diameter setting unit below the lens arrangement unit The position of the lens diameter set by the lens diameter setting means and the position corresponding to the position of the measurement part from the reference position set by the measurement part setting means are movably arranged. When the lens is mounted, while supporting the lens to be measured and moving the measurement site of the lens to be measured to the position set by the measurement site setting means, the measurement optical system A lens receiving / measuring switch mechanism for causing the light source to emit light; and a measuring state display unit for displaying a measurement execution state for the measurement site of the test lens in conjunction with the operation of the lens receiving / measuring switch mechanism. A spectral characteristic measuring device characterized by the above-mentioned. 7. The measurement site setting means includes: a measurement site extending over a distance portion or a near portion of a test lens formed of a progressive lens;
7. The spectral characteristic measuring apparatus according to claim 6, wherein a plurality of measurement sites of the test lens formed of a multifocal lens and a desired measurement site including an eye point of the test lens formed of a half-stained lens are set. 8. A measurement optical system including a lens arrangement portion into which a test lens is inserted, and measuring spectral characteristics by transmitting measurement light from a light source to a measurement site of the test lens inserted into the lens arrangement portion. A lid for covering the lens arrangement section, a lid open / close detection section for detecting whether the lid is open or closed, and a passage hole for measurement light in the lens arrangement section. Lens insertion detection sensors radially arranged at a plurality of positions around the peripheral position of the sensor, execution of automatic calibration of the measurement optical system when the lid is changed from the closed state to the open state based on the detection result of the lid open / close detection unit Or a control means for prompting manual calibration by displaying a calibration request display. 9. A measurement optical system having a lens arrangement section into which a test lens is inserted, and transmitting a measurement light from a light source to a measurement site of the test lens inserted into the lens arrangement section to measure a spectral characteristic. In a spectral characteristic measuring apparatus equipped with: a lens insertion detecting means for detecting the presence or absence of insertion of a test lens provided at a peripheral position of the lens disposing portion; and Control means for prompting manual calibration by executing automatic calibration of the measuring optical system or displaying a calibration request at predetermined time intervals after the turning.