Measuring clamp for optical circular array lens

Abstract

The utility model discloses a measuring clamp for an optical circular array lens, which comprises a substrate, and the front side of the substrate is provided with a central shaft; the lensometer sleeve is mounted on the rear side of the substrate and is provided with a lensometer connecting hole penetrating through the substrate; the plunger fixing block is mounted on the upper side of the base plate and is provided with a spring plunger extending downwards; the circular array lens seat is connected to the center shaft in a sleeving mode and used for installing a circular array lens, the circular array lens is provided with 24 small lenses which are arranged in a circumferential array mode, and 24 positioning grooves corresponding to the spring plungers are formed in the outer ring of the circular array lens seat; and the circular array lens pressing block is mounted on the substrate through a fastening assembly and covers the circular array lens seat in a pressing manner. According to the utility model, the fixture is used to reduce the invalid time of repeated alignment of the optical center during measurement, the dial is shifted to realize rapid switching of the measurement lens, and the efficiency is improved. The inspection of the whole circular array lens is completed within one minute, the effect of improving the efficiency by more than 20 times is achieved, the measurement time is greatly shortened, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of optical diopter detection clamp, concretely relates to a kind of measurement fixture of optical circle array lens. BACKGROUND

[0002] At present, the minimum diameter of the effective optical diameter measured by the generally used lensmeter in market is 5.5mm, and the minimum lens that can be clamped is 20mm-100mm, which cannot meet the measurement requirement of product. The cost of customized lensmeter is unacceptable, and the best solution is to design a matching clamp to measure by using the existing lensmeter. However, the existing clamp is a diaphragm sleeve with a 3.7mm clear aperture, which is sleeved on the lensmeter during measurement to change the original effective optical diameter from 5.5mm to 3.7mm. Then, the optical center area is aligned manually to measure.

[0003] The existing measurement clamp has the following problems and shortcomings: it is difficult to align the optical center of lens, and there is no positioning device, which is only confirmed by the crosshair display in the display of computer lensmeter. Since the circular array lens is handheld, the manual instability during measurement often makes it difficult to display the crosshair, which is time-consuming and labor-intensive. It takes more than 20 minutes to complete the measurement of one circular array lens with 24 small lenses, and it takes more than half an hour for unskilled inspectors.

[0004] Therefore, the current problems to be solved are: accurate measurement, convenient inspection operation, convenient sample replacement, shortening of measurement time and improvement of efficiency. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a kind of measurement fixture of optical circle array lens to avoid the trouble of inaccurate measurement and low measurement efficiency of previous lensmeter.

[0006] To solve the above technical problems, the utility model discloses a kind of measurement fixture of optical circle array lens, it includes:

[0007] The base plate has a central axis on the front side;

[0008] The lensmeter sleeve is installed on the back side of the base plate, and the lensmeter sleeve has a lensmeter connecting hole penetrating the base plate;

[0009] The plunger fixing block is installed on the upper side of the base plate, and the plunger fixing block has a spring plunger extending downward;

[0010] The circular array lens seat is sleeved on the central axis, and the circular array lens seat is used to install the circular array lens; the circular array lens has 24 small lenses arranged in a circular array, and the outer circle of the circular array lens seat is provided with 24 positioning grooves corresponding to the spring plungers;

[0011] The circular array lens pressing block is mounted on the substrate through the fastening assembly, and the circular array lens pressing block presses the circular array lens seat.

[0012] According to an embodiment of the present application, the circular array lens seat is annular, the inner ring has a plurality of foolproof protrusions, the circular array lens is embedded in the circular array lens seat, and the outer ring has a plurality of corresponding foolproof grooves.

[0013] According to an embodiment of the present application, the circular array lens seat is rotated, so that the spring plunger falls into the positioning groove, and the uppermost lens guides the light hole of the fastening assembly, wherein the center of the lensometer connecting hole, the center of the light hole, and the center of the 24 lenses are on the same axis.

[0014] According to an embodiment of the present application, the fastening assembly includes a fixed shaft and a movable buckle, and the fixed shaft and the movable buckle are respectively located at the left and right ends of the circular array lens pressing block.

[0015] According to an embodiment of the present application, the circular array lens pressing block exposes the spring plunger and the two sides of the circular array lens seat, and the lower end of the circular array lens seat exceeds the lower end of the substrate.

[0016] Compared with the prior art, the present application can obtain the following technical effects:

[0017] The center of the lensometer connecting hole, the center of the light hole, and the center of the 24 lenses are on the same axis, which reduces the measurement error and makes the measurement more accurate.

[0018] Twenty-four optical lenses are arranged, and the fixture can be continuously rotated without re-clamping, and the center position of each optical lens can be positioned, so that the hands are freed, the dial is actuated to continuously check, and the checking operation is more convenient.

[0019] The circular array lens has a foolproof groove, the circular array lens has a corresponding foolproof protrusion, the replacement of the circular array lens does not need to distinguish the orientation, and the replacement of the sample is quick.

[0020] The fixture is used to reduce the invalid time of repeatedly aligning the optical center during measurement, the dial is actuated to realize rapid switching measurement lens, and the efficiency is improved.

[0021] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application. In the drawings:

[0023] Figure 1 is a front view of a measuring fixture of an optical circular array lens according to an embodiment of the present application;

[0024] Figure 2 is a rear view of a measuring fixture of an optical circular array lens according to an embodiment of the present application;

[0025] Figure 3 is a schematic view of a circular array lens seat according to an embodiment of the present application;

[0026] Figure 4 is a schematic view of a circular array lens according to an embodiment of the present application.

[0027] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application. In the drawings:

[0028] Plunger fixing block 1, spring plunger 2, base plate 3, circular array lens seat 4, circular array lens pressing block 5, light hole 6, lensometer sleeve 7, lensometer connecting hole 8, foolproof protrusion 9, positioning groove 10, foolproof groove 11, small lens 12, circular array lens 13, fixing shaft 14, movable buckle 15. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below with reference to the drawings and embodiments, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0030] Please refer to Figures 1 to 4 , Figure 1 is a front view of a measuring fixture of an optical circular array lens according to an embodiment of the present application; Figure 2 is a rear view of a measuring fixture of an optical circular array lens according to an embodiment of the present application; Figure 3 is a schematic view of a circular array lens seat according to an embodiment of the present application; Figure 4 is a schematic view of a circular array lens according to an embodiment of the present application.

[0031] As shown in the drawings, a measuring fixture of an optical circular array lens comprises:

[0032] The base plate 3 has a central axis on the front side;

[0033] The lensometer sleeve 7 is installed on the rear side of the base plate 3, and the lensometer sleeve 7 has a lensometer connecting hole 8 penetrating through the base plate 3;

[0034] The plunger fixing block 1 is installed on the upper side of the substrate 3, and the plunger fixing block 1 has a spring plunger 2 extending downward;

[0035] The circular array lens seat 4 is sleeved on the central shaft, and the circular array lens seat 4 is used for installing a circular array lens 13, the circular array lens 13 has 24 small lenses 12 arranged in a circumferential array, and the outer ring of the circular array lens seat 4 is provided with 24 positioning grooves 10 corresponding to the spring plungers 2;

[0036] The circular array lens pressing block 5 is installed on the substrate 3 through a fastening assembly, and the circular array lens pressing block 5 covers the circular array lens seat 4.

[0037] In an embodiment of the utility model, the plunger fixing block 1 is fixed on the substrate 3, and the plunger fixing block 1 is provided with the spring plunger 2, which is used for positioning the circular array lens seat 4.

[0038] The circular array lens seat 4 is annular, the inner ring has a plurality of foolproof protrusions 11, the circular array lens 13 is embedded in the circular array lens seat 4, and the outer ring has a plurality of foolproof grooves 11 corresponding to the foolproof protrusions 11. The circular array lens 13 is installed in the circular array lens seat 4, and the foolproof protrusions 9 and the foolproof grooves 11 are matched and positioned.

[0039] The circular array lens seat 4 is rotatable on the shaft of the substrate 3, the circular array lens seat 4 has the positioning groove 10, and the spring plunger 2 is extruded in the rotating process, falls into the groove and is positioned. The circular array lens pressing block 5 presses the matched circular array lens seat 4 on the substrate 3.

[0040] In a preferred embodiment, the fastening assembly includes a fixed shaft 14 and a movable buckle 15, and the fixed shaft 14 and the movable buckle 15 are located at the left and right ends of the circular array lens pressing block 5 respectively. That is, one end of the circular array lens pressing block 5 is fixed on the substrate 3 and can rotate, and the hole of the movable buckle 15 at the other end of the circular array lens pressing block 5 falls into the positioning screw.

[0041] The focal length gauge sleeve 7 is installed from the back of the substrate 3 and is used for installing the focal length gauge.

[0042] After the clamp is assembled, the circular array lens seat 4 is rotated, so that the spring plunger 2 falls into the positioning groove 10, and the uppermost small lens 12 guides the light transmission hole 6 of the fastening assembly, wherein the center of the focal length gauge connecting hole 8, the center of the light transmission hole 6 and the center of the 24 small lenses 12 are on the same axis.

[0043] The circular array lens pressing block 5 exposes the spring plungers 2 and the two sides of the circular array lens seat 4, and the lower end of the circular array lens seat 4 exceeds the lower end of the substrate 3, so that the circular array lens seat 4 can be conveniently rotated for detection.

[0044] The overall round array lens is a PMMA transparent material, the minimum light passing opening diameter of the lensometer is 5.5 mm, and the outgoing light covers the effective optical zone, and the edge non-effective optical zone transmits to participate in measurement, thereby causing inaccurate measurement. The original technology is that a diameter 3.7 mm diaphragm is sleeved on the measurement end of the lensometer, the lensometer measurement light only passes through the diaphragm hole to enter the effective optical zone of the round array lens for measurement, but the round array lens cannot be clamped, and only manual measurement can be realized. The utility model discloses the principle of measurement is unchanged, the light passing hole 6 on the round array lens seat 4 is used as a diaphragm, and other refractive light is avoided to participate in measurement. The overall clamp can be fixed on the lensometer through the lensometer connecting hole 8, stable measurement is realized, and specifically,

[0045] 1. Turn the movable buckle 15, and open the round array lens pressing block 5 around the fixed shaft 14.

[0046] 2. Take out the round array lens seat 4, and the measured round array lens 13 is matched with the fool-proof protrusion 9 and the fool-proof groove 11 and is loaded into the round array lens seat 4.

[0047] 3. The round array lens seat 4 is loaded back to the base plate 3 and is pressed by the round array lens pressing block 5.

[0048] 4. The clamp is assembled to the lensometer through the lensometer connecting hole 8, and the clamp is fixed by using the lensometer pressing plate.

[0049] 5. Turn the round array lens seat 4, and the hand feeling spring plunger 2 falls into the positioning groove 10, at this moment, the optical center of the measured 24 small lenses 12 is aligned with the lensometer measurement hole, and the lensometer starts measurement.

[0050] 6. Continuously turn the round array lens seat 4, and the 24 small lenses 12 are continuously measured.

[0051] 7. Measurement is completed, the round array lens is replaced, and the steps 1-6 are repeated to continue measurement.

[0052] The utility model discloses a clamp is used to reduce the invalid time of repeatedly aligning the optical center during measurement, and the dial is turned to realize quick switching measurement lens, and the efficiency is improved. The whole round array lens is tested in 1 minute, the efficiency is improved by more than 20 times, the measurement time is greatly shortened, and the efficiency is improved.

[0053] The above description shows and describes several preferred embodiments of the utility model, but as described previously, the utility model is not limited to the form disclosed in the present application, and should not be regarded as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be changed by the above teaching or related technology or knowledge within the scope of the utility model concept described in the present application. The change and variation made by the person skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the protection scope of the claims attached to the utility model.

Claims

1. A measurement jig for an optical round array lens, characterized by, Comprising: a substrate, the substrate front side having a center axis; a lensometer sleeve mounted on the substrate back side, the lensometer sleeve having a lensometer connecting hole passing through the substrate; a plunger fixing block mounted on the substrate upper side, the plunger fixing block having a spring plunger protruding downward; a circular array lens seat sleeved on the center axis, the circular array lens seat for mounting a circular array lens, the circular array lens having 24 lenslets arranged in a circular array, the circular array lens seat outer circle being provided with 24 positioning grooves corresponding to the spring plunger; a circular array lens pressing block mounted on the substrate by a fastening assembly, the circular array lens pressing block pressing the circular array lens seat.

2. The measurement fixture for an optical round array lens according to claim 1, wherein Wherein the circular array lens seat is annular, the inner circle has a plurality of foolproof protrusions, the circular array lens is embedded in the circular array lens seat, and the outer circle has a plurality of foolproof grooves corresponding to the foolproof protrusions.

3. The measurement fixture for an optical round array lens of claim 1, wherein, Wherein the circular array lens seat is rotated, so that the spring plunger falls into the positioning groove, and the uppermost lenslet guides the light hole of the fastening assembly, wherein the lensometer connecting hole center, the light hole center, and the 24 lenslet centers are on the same axis.

4. The measurement fixture for an optical round array lens of claim 1, wherein, Wherein the fastening assembly includes a fixed shaft and a movable buckle, the fixed shaft and the movable buckle are respectively located at the left and right ends of the circular array lens pressing block.

5. The measurement fixture for an optical round array lens of claim 1, wherein, Wherein the circular array lens pressing block exposes the spring plunger and both sides of the circular array lens seat, and the lower end of the circular array lens seat exceeds the lower end of the substrate.

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