CN217358946U - Optical system for detecting chromatic aberration of spectacle lens - Google Patents

Abstract

The utility model discloses an optical system used for chromatic aberration detection of spectacle lenses. The device comprises twenty lenses with focal lengths of negative, positive, positive, positive, positive, negative, negative, positive, negative, positive, negative, positive, negative, positive, positive, positive, negative, negative, positive, positive, negative in sequence from the object plane. The device of the utility model is a zoom optical system, which can measure the chromatic aberration of spectacle lenses with different refractive powers. The utility model adopts a plurality of cemented lenses to reduce chromatic aberration, and performs effective correction in the entire zoom range, has good imaging performance, and ensures the accuracy of the measurement results. The materials of the utility model are all made of domestic glass, the cost is reduced, and the application prospect is broad. The aperture of all zoom positions of the utility model reaches 2.9, the light transmission amount is sufficient, and the imaging quality is good.

Description

Optical system for detecting chromatic aberration of spectacle lens

Technical Field

The utility model relates to a lens detects technical field, concretely relates to an optical system for lens colour difference detects.

Background

The quality of the spectacle lenses on the market at present is uneven. The glasses with good quality can not only help the patient to see objects clearly, but also play a role in health care and treatment of eyes, effectively relieve visual fatigue, gradually stabilize the myopia and refraction state, and slow or stop development. The poor quality glasses can cause patients to have symptoms of visual fatigue, eye pain, eye swelling and serious degree deepening, and the myopia is changed from pseudonature to true nature. Therefore, quality detection of the spectacle product is crucial.

Disclosure of Invention

The utility model provides an optical system for lens colour difference detects, include from the object plane in proper order for focus be negative, positive, burden, just, burden, just, positive, the twenty lenses of burden. And a plurality of cemented lenses are adopted to reduce the chromatic aberration of the system, so that the accuracy of the measurement result is ensured. The device is a zoom optical system and can measure chromatic aberration of spectacle lenses with different diopters.

The technical scheme of the utility model as follows:

an optical system for detecting chromatic aberration of a spectacle lens comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9, a tenth lens 10, an eleventh lens 11, a twelfth lens 12, a thirteenth lens 13, a fourteenth lens 14, a fifteenth lens 15, a sixteenth lens 16, a seventeenth lens 17, an eighteenth lens 18, a nineteenth lens 19, a twentieth lens 20 and a twenty-first lens 21 which are arranged in sequence from an object plane to an image plane;

an aperture diaphragm 22 is arranged between the tenth lens 10 and the eleventh lens 11, the axial distance from the aperture diaphragm 22 to the tenth lens 10 is 6.22mm, and the axial distance from the eleventh lens 11 is 0.1 mm;

the first lens 1 is a negative lens, the second lens 2 is a positive lens, the third lens 3 is a positive lens, the fourth lens 4 is a positive lens, the fifth lens 5 is a positive lens, the sixth lens 6 is a negative lens, the seventh lens 7 is a negative lens, the eighth lens 8 is a positive lens, the ninth lens 9 is a negative lens, the tenth lens 10 is a positive lens, the eleventh lens 11 is a negative lens, the twelfth lens 12 is a positive lens, the thirteenth lens 13 is a negative lens, the fourteenth lens 14 is a positive lens, the fifteenth lens 15 is a positive lens, the sixteenth lens 16 is a positive lens, the seventeenth lens 17 is a negative lens, the eighteenth lens 18 is a negative lens, the nineteenth lens 19 is a positive lens, the twentieth lens 20 is a positive lens, and the twenty-first lens 21 is a negative lens;

the first lens 1 is a meniscus lens, the second lens 2 is a biconvex lens, the third lens 3 is a meniscus lens, the fourth lens 4 is a meniscus lens, the fifth lens 5 is a meniscus lens, the sixth lens 6 is a biconcave lens, the seventh lens 7 is a biconcave lens, the eighth lens 8 is a biconvex lens, the ninth lens 9 is a biconcave lens, the tenth lens 10 is a meniscus lens, the eleventh lens 11 is a meniscus lens, the twelfth lens 12 is a double convex lens, the thirteenth lens 13 is a meniscus lens, the fourteenth lens 14 is a meniscus lens, the fifteenth lens 15 is a double convex lens, the sixteenth lens 16 is a meniscus lens, the seventeenth lens 17 is a meniscus lens, the eighteenth lens 18 is a meniscus lens, the nineteenth lens 19 is a meniscus lens, the twentieth lens 20 is a meniscus lens, and the twenty-first lens 21 is a meniscus lens;

the first lens 1 and the second lens 2 constitute a cemented lens J1, the fifth lens 5 and the sixth lens 6 constitute a cemented lens J2, the seventh lens 7 and the eighth lens 8 constitute a cemented lens J3, the ninth lens 9 and the tenth lens 10 constitute a cemented lens J4, the eleventh lens 11 and the twelfth lens 12 and the thirteenth lens 13 constitute a cemented lens J5, the sixteenth lens 16 and the seventeenth lens 17 constitute a cemented lens J6, the eighteenth lens 18 and the nineteenth lens 19 constitute a cemented lens J7, and the twentieth lens 20 and the twenty-first lens 21 constitute a cemented lens J8;

the abbe numbers of lens materials of the first lens 1, the second lens 2, the fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, the tenth lens 10, the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13, the sixteenth lens 16, the seventeenth lens 17, the eighteenth lens 18, the nineteenth lens 19, the twentieth lens 20 and the twenty-first lens 21 with respect to light having a wavelength of 587.6nm are V1, V2, V5, V6, V7, V8, V9, V10, V11, V12, V13, V16, V17, V18, V19, V20 and V21, respectively; satisfies the following conditions: v1< V2, V5< V6, V7> V8, V9> V10, V11< V12, V12> V13, V16> V17, V18< V19, V20> V21; and V7, V12, V16 and V19 are all more than 50;

the fifth lens 5, the tenth lens 10, the sixteenth lens 16, the seventeenth lens 17 and the twentieth lens 20 are all aspheric lenses; the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13, the fourteenth lens 14, the fifteenth lens 15, the eighteenth lens 18, the nineteenth lens 19 and the twenty-first lens 21 are all spherical lenses;

the combined focal length of the first lens 1, the second lens 2 and the third lens 3 is f 1; the combined focal length of the fourth lens 4, the fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, and the tenth lens 10 is f 2; the combined focal length of the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13 and the fourteenth lens 14 is f 3; the combined focal length of the fifteenth lens 15, the sixteenth lens 16, the seventeenth lens 17, the eighteenth lens 18, the nineteenth lens 19, the twentieth lens 20, and the twenty-first lens 21 is f 4; 8< | f1/f2 | 12, 0.1< | f2/f3 | 0.3, 2< | f3/f4 | 3.5;

further, domestic glass materials of shingling company are adopted as lens materials, the first lens 1 is HZF62, the second lens 2 is HLAF3, the third lens 3 is HLAF6LA, the fourth lens 4 is HBAK4, the fifth lens 5 is F7, the sixth lens 6 is HLAF3A, the seventh lens 7 is HLAK67, the eighth lens 8 is HZF4, the ninth lens 9 is HLAF3A, the tenth lens 10 is HF51, the eleventh lens 11 is HLAF3, the twelfth lens 12 is HQK3, the thirteenth lens 13 is HZBAF21, the fourteenth lens 14 is HZF5, the fifteenth lens 15 is hz35k 42, the sixteenth lens 16 is HK6, the seventeenth lens 17 is HZF3, the eighteenth lens 18 is HZF4, the nineteenth lens 19 is HZF5, the twentieth lens 20 is HQF 3, and the twenty-ninth lens 46f 3 is twenty-th lens 20;

furthermore, the working waveband of the optical system is 380nm to 760 nm;

the utility model has the advantages that:

1. the device is a zoom optical system and can measure chromatic aberration of spectacle lenses with different diopters.

2. The method adopts a plurality of cemented lenses to reduce chromatic aberration, effectively corrects the chromatic aberration in the whole zooming range, has good imaging performance and ensures the accuracy of the measurement result.

3. The material is made of domestic glass, so that the cost is reduced, and the application prospect is wide.

4. The aperture of all zoom positions of the device reaches 2.9, the light flux is sufficient, and the imaging quality is good.

Drawings

FIG. 1 is a diagram of an optical path structure of an optical system for chromatic aberration detection of an ophthalmic lens

FIG. 2 is a vertical axis color difference diagram of the embodiment of the present invention at the zoom position 1

FIG. 3 is a vertical axis color difference diagram of the embodiment of the present invention at the zoom position 2

FIG. 4 is a vertical axis color difference diagram of the zoom position 3 according to the embodiment of the present invention

FIG. 5 is a field curvature diagram of the zoom position 3 according to the embodiment of the present invention

FIG. 6 is a dot-column diagram of the embodiment of the present invention at the zoom position 3

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a diagram of an optical path structure of an optical system for detecting chromatic aberration of an eyeglass lens according to the present invention. The device comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8, a ninth lens 9, a tenth lens 10, an eleventh lens 11, a twelfth lens 12, a thirteenth lens 13, a fourteenth lens 14, a fifteenth lens 15, a sixteenth lens 16, a seventeenth lens 17, an eighteenth lens 18, a nineteenth lens 19, a twentieth lens 20 and a twenty-first lens 21 which are arranged in sequence from an object plane to an image plane;

an aperture diaphragm 22 is arranged between the tenth lens 10 and the eleventh lens 11, the axial distance from the aperture diaphragm 22 to the tenth lens 10 is 6.22mm, and the axial distance from the eleventh lens 11 is 0.1 mm;

the first lens 1 is a negative lens, the second lens 2 is a positive lens, the third lens 3 is a positive lens, the fourth lens 4 is a positive lens, the fifth lens 5 is a positive lens, the sixth lens 6 is a negative lens, the seventh lens 7 is a negative lens, the eighth lens 8 is a positive lens, the ninth lens 9 is a negative lens, the tenth lens 10 is a positive lens, the eleventh lens 11 is a negative lens, the twelfth lens 12 is a positive lens, the thirteenth lens 13 is a negative lens, the fourteenth lens 14 is a positive lens, the fifteenth lens 15 is a positive lens, the sixteenth lens 16 is a positive lens, the seventeenth lens 17 is a negative lens, the eighteenth lens 18 is a negative lens, the nineteenth lens 19 is a positive lens, the twentieth lens 20 is a positive lens, and the twenty-first lens 21 is a negative lens;

the first lens 1 is a meniscus lens, the second lens 2 is a biconvex lens, the third lens 3 is a meniscus lens, the fourth lens 4 is a meniscus lens, the fifth lens 5 is a meniscus lens, the sixth lens 6 is a biconcave lens, the seventh lens 7 is a biconcave lens, the eighth lens 8 is a biconvex lens, the ninth lens 9 is a biconcave lens, the tenth lens 10 is a meniscus lens, the eleventh lens 11 is a meniscus lens, the twelfth lens 12 is a double convex lens, the thirteenth lens 13 is a meniscus lens, the fourteenth lens 14 is a meniscus lens, the fifteenth lens 15 is a double convex lens, the sixteenth lens 16 is a meniscus lens, the seventeenth lens 17 is a meniscus lens, the eighteenth lens 18 is a meniscus lens, the nineteenth lens 19 is a meniscus lens, the twentieth lens 20 is a meniscus lens, and the twenty-first lens 21 is a meniscus lens;

the first lens 1 and the second lens 2 constitute a cemented lens J1, the fifth lens 5 and the sixth lens 6 constitute a cemented lens J2, the seventh lens 7 and the eighth lens 8 constitute a cemented lens J3, the ninth lens 9 and the tenth lens 10 constitute a cemented lens J4, the eleventh lens 11 and the twelfth lens 12 and the thirteenth lens 13 constitute a cemented lens J5, the sixteenth lens 16 and the seventeenth lens 17 constitute a cemented lens J6, the eighteenth lens 18 and the nineteenth lens 19 constitute a cemented lens J7, and the twentieth lens 20 and the twenty-first lens 21 constitute a cemented lens J8;

the abbe numbers of lens materials of the first lens 1, the second lens 2, the fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, the tenth lens 10, the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13, the sixteenth lens 16, the seventeenth lens 17, the eighteenth lens 18, the nineteenth lens 19, the twentieth lens 20 and the twenty-first lens 21 with respect to light having a wavelength of 587.6nm are V1, V2, V5, V6, V7, V8, V9, V10, V11, V12, V13, V16, V17, V18, V19, V20 and V21, respectively; satisfies the following conditions: v1< V2, V5< V6, V7> V8, V9> V10, V11< V12, V12> V13, V16> V17, V18< V19, V20> V21; and V7, V12, V16 and V19 are all more than 50;

the fifth lens 5, the tenth lens 10, the sixteenth lens 16, the seventeenth lens 17 and the twentieth lens 20 are all aspheric lenses; the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13, the fourteenth lens 14, the fifteenth lens 15, the eighteenth lens 18, the nineteenth lens 19 and the twenty-first lens 21 are all spherical lenses;

the combined focal length of the first lens 1, the second lens 2 and the third lens 3 is f 1; the combined focal length of the fourth lens 4, the fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, and the tenth lens 10 is f 2; the combined focal length of the eleventh lens 11, the twelfth lens 12, the thirteenth lens 13 and the fourteenth lens 14 is f 3; the combined focal length of the fifteenth lens 15, the sixteenth lens 16, the seventeenth lens 17, the eighteenth lens 18, the nineteenth lens 19, the twentieth lens 20, and the twenty-first lens 21 is f 4; and 8< | f1/f2 | <12, 0.1< | f2/f3 | <0.3, 2< | f3/f4 | < 3.5;

further, domestic glass materials of shingling company are adopted as lens materials, the first lens 1 is HZF62, the second lens 2 is HLAF3, the third lens 3 is HLAF6LA, the fourth lens 4 is HBAK4, the fifth lens 5 is F7, the sixth lens 6 is HLAF3A, the seventh lens 7 is HLAK67, the eighth lens 8 is HZF4, the ninth lens 9 is HLAF3A, the tenth lens 10 is HF51, the eleventh lens 11 is HLAF3, the twelfth lens 12 is HQK3, the thirteenth lens 13 is HZBAF21, the fourteenth lens 14 is HZF5, the fifteenth lens 15 is hz35k 42, the sixteenth lens 16 is HK6, the seventeenth lens 17 is HZF3, the eighteenth lens 18 is HZF4, the nineteenth lens 19 is HZF5, the twentieth lens 20 is HQF 3, and the twenty-ninth lens 46f 3 is twenty-th lens 20;

furthermore, the working waveband of the optical system is 380nm to 760 nm;

the lens parameters and lens center-to-center distance parameters in this example are shown in table 1 below:

table 1 (unit: mm):

table 2 shows aspheric data, where the aspheric formula is:

wherein the content of the first and second substances,

z: depth of aspheric surface

r: distance (height) (mm) from optical axis to lens surface

K: eccentricity of a rotor

c: paraxial curvature

A, B, C, D … …: 4, 6, 8, 10, … … order aspheric coefficients

Table 2:

	surface 8	Surface 16	Surface 27	Surface 32
					K	65.49298	-5216161428.61711	-0.22473	-2.36282e+016
A4	5.94561e-006	-8.69019e-006	2.75264e-006	-1.18548e-005
					A6	7.81910e-010	-1.85589e-008	1.39780e-009	-7.43807e-009
A8	4.08714e-011	1.05174e-010	4.83366e-012	1.60774e-011
					A10	-1.72825e-013	-1.64111e-013	9.70683e-015	-1.36178e-013

Zoom data are listed in table 3:

table 3:

	zoom position 1	Zoom position 2	Zoom position 3
				Thickness of the surface 5	3.35	15.42	46.94
Thickness of surface 16	12.83	6.22	4.74
				Thickness of surface 23	6.64	2.69	1.91
Thickness of surface 34	35.78	45.46	46.51

Referring to fig. 2, 3 and 4, it can be seen that the vertical chromatic aberration of the device at all zoom positions is in the micrometer range and approaches the diffraction limit of the system, which shows that the chromatic aberration performance of the device is excellent. The method ensures that no new chromatic aberration is introduced in the measurement process, and lays a solid foundation for the measurement accuracy. Meanwhile, as an example, a field curvature diagram and a dot diagram of the third zoom position in the present embodiment are given, and referring to fig. 5 and 6, it can be seen that the imaging performance of the present apparatus is good.

The operating method for measuring the chromatic aberration of the spectacle lens to be detected by utilizing the optical system for detecting the chromatic aberration of the spectacle lens comprises the following steps:

step 1, coaxially placing a collimated light source, an aperture diaphragm, a spectacle lens to be detected, an optical system for detecting chromatic aberration of the spectacle lens and a CCD. The distance between the collimation light source, the spectacle lens to be detected and the optical system for detecting the chromatic aberration of the spectacle lens is 5cm, the small aperture diaphragm is positioned at any position between the collimation light source and the spectacle lens to be detected, and the light passing diameter of the small aperture diaphragm is 10 mm. The collimation light source firstly outputs light of 486nm, the focal length of an optical system for detecting the chromatic aberration of the spectacle lens is adjusted to ensure that the diameter of a light spot is minimum, the position of the CCD is adjusted to ensure that an image point is imaged on the CCD, and the position L1 of the CCD at the moment is recorded. The collimated light source then outputs 656nm light, the position of the CCD is adjusted to minimize the spot diameter of the image point and imaged onto the CCD, and the position L2 of the CCD at that time is recorded.

And 2, taking away the spectacle lens to be detected, outputting 486nm light by the collimation light source, adjusting the focal length of an optical system for detecting the chromatic aberration of the spectacle lens to minimize the diameter of a light spot, adjusting the position of the CCD to image an image point on the CCD, and recording the position L3 of the CCD at the moment. The collimated light source then outputs 656nm light, the position of the CCD is adjusted to minimize the spot diameter of the image point and imaged onto the CCD, and the position L4 of the CCD at that time is recorded.

And step 3, the color difference value on the axis of the spectacle lens is (L1-L2) - (L3-L4).

This device can be simply swift through above-mentioned step the colour difference value size of the lens of different diopters of measurement, effectually detects the lens quality.

The above list of details is only for the concrete description of the feasible embodiments of the present invention, they are not used to limit the protection scope of the present invention, and all the equivalent ways or modifications not departing from the present invention should be included in the protection scope of the present invention.

Claims (8)

1. An optical system for chromatic aberration detection of an ophthalmic lens, comprising: the lens comprises a first lens (1), a second lens (2), a third lens (3), a fourth lens (4), a fifth lens (5), a sixth lens (6), a seventh lens (7), an eighth lens (8), a ninth lens (9), a tenth lens (10), an eleventh lens (11), a twelfth lens (12), a thirteenth lens (13), a fourteenth lens (14), a fifteenth lens (15), a sixteenth lens (16), a seventeenth lens (17), an eighteenth lens (18), a nineteenth lens (19), a twentieth lens (20) and a twenty-first lens (21) in sequence from an object plane to an image plane;

an aperture diaphragm (22) is arranged between the tenth lens (10) and the eleventh lens (11), the axial distance between the aperture diaphragm (22) and the tenth lens (10) is 6.22mm, and the axial distance between the aperture diaphragm (22) and the eleventh lens (11) is 0.1 mm;

the first lens (1) is a negative lens, the second lens (2) is a positive lens, the third lens (3) is a positive lens, the fourth lens (4) is a positive lens, the fifth lens (5) is a positive lens, the sixth lens (6) is a negative lens, the seventh lens (7) is a negative lens, the eighth lens (8) is a positive lens, the ninth lens (9) is a negative lens, the tenth lens (10) is a positive lens, and the eleventh lens (11) is a negative lens, the twelfth lens (12) is a positive lens, the thirteenth lens (13) is a negative lens, the fourteenth lens (14) is a positive lens, the fifteenth lens (15) is a positive lens, the sixteenth lens (16) is a positive lens, the seventeenth lens (17) is a negative lens, the eighteenth lens (18) is a negative lens, the nineteenth lens (19) is a positive lens, the twentieth lens (20) is a positive lens, and the twenty-first lens (21) is a negative lens.

2. The optical system for chromatic aberration detection of an ophthalmic lens of claim 1, wherein the first lens (1) is a meniscus lens, the second lens (2) is a biconvex lens, the third lens (3) is a meniscus lens, the fourth lens (4) is a meniscus lens, the fifth lens (5) is a meniscus lens, the sixth lens (6) is a biconcave lens, the seventh lens (7) is a biconcave lens, the eighth lens (8) is a biconvex lens, the ninth lens (9) is a biconcave lens, the tenth lens (10) is a meniscus lens, the eleventh lens (11) is a meniscus lens, the twelfth lens (12) is a biconvex lens, the thirteenth lens (13) is a meniscus lens, the fourteenth lens (14) is a meniscus lens, the fifteenth lens (15) is a biconvex lens, the sixteenth lens (16) is a meniscus lens, the thirteenth lens (3) is a biconvex lens, the ninth lens (8) is a biconvex lens, the ninth lens (9) is a biconvex lens, a sixteenth lens (16) is a lens, a lens, The seventeenth lens (17) is a meniscus lens, the eighteenth lens (18) is a meniscus lens, the nineteenth lens (19) is a meniscus lens, the twentieth lens (20) is a meniscus lens, and the twenty-first lens (21) is a meniscus lens.

3. An optical system for chromatic aberration detection of spectacle lenses according to claim 1, characterized in that the first lens (1) and the second lens (2) constitute a cemented lens J1, the fifth lens (5) and the sixth lens (6) constitute a cemented lens J2, the seventh lens (7) and the eighth lens (8) constitute a cemented lens J3, the ninth lens (9) and the tenth lens (10) constitute a cemented lens J4, the eleventh lens (11) and the twelfth lens (12) and the thirteenth lens (13) constitute a cemented lens J5, the sixteenth lens (16) and the seventeenth lens (17) constitute a cemented lens J6, the eighteenth lens (18) and the nineteenth lens (19) constitute a cemented lens J7, and the twentieth lens (20) and the twenty-first lens (21) constitute a cemented lens J8.

4. An optical system for chromatic aberration detection of an ophthalmic lens according to claim 1, wherein abbe numbers of the first lens (1), the second lens (2), the fifth lens (5), the sixth lens (6), the seventh lens (7), the eighth lens (8), the ninth lens (9), the tenth lens (10), the eleventh lens (11), the twelfth lens (12), the thirteenth lens (13), the sixteenth lens (16), the seventeenth lens (17), the eighteenth lens (18), the nineteenth lens (19), the twentieth lens (20), and the twenty-first lens (21) are V1, V2, V5, V6, V7, V8, V9, V10, V11, V12, V13, V16, V17, V18, V19, V20, and V21, and satisfy: v1< V2, V5< V6, V7> V8, V9> V10, V11< V12, V12> V13, V16> V17, V18< V19, V20> V21; and V7, V12, V16 and V19 are all more than 50.

5. The optical system for chromatic aberration detection of ophthalmic lenses of claim 1, characterized in that the fifth lens (5), the tenth lens (10), the sixteenth lens (16), the seventeenth lens (17) and the twentieth lens (20) are all aspheric lenses.

6. The optical system for chromatic aberration detection of an ophthalmic lens of claim 1, wherein the first lens (1), the second lens (2), the third lens (3), the fourth lens (4), the sixth lens (6), the seventh lens (7), the eighth lens (8), the ninth lens (9), the eleventh lens (11), the twelfth lens (12), the thirteenth lens (13), the fourteenth lens (14), the fifteenth lens (15), the eighteenth lens (18), the nineteenth lens (19), and the twenty-first lens (21) are all spherical lenses.

7. The optical system for chromatic aberration detection of ophthalmic lenses according to claim 1, wherein the lens materials of the first to twenty-first lenses are all glass materials.

8. An optical system for chromatic aberration detection of ophthalmic lenses according to claim 1, characterized in that the optical system operating band is 380nm to 760 nm.

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