A Gluing Lens Adjustment System, Control Method and Application

Abstract

The present invention belongs to the technical field of optical element manufacturing and alignment, and discloses a gluing lens adjustment system, a control method and an application. Place the lens to be glued after kneading glue on the lens base, and assemble the lens retaining ring, piston ring, upper housing, lower housing, protective shell and elastomer according to the corresponding assembly relationship; place the assembled adjustment component on the lens base, and press the lens retaining ring onto the upper edge of the upper lens of the lens to be glued; under the gravity of the upper housing and the lower housing, the lens to be glued pushes the lens retaining ring upward, and the elastomer is compressed under force; use the pressure generated by the elastomer as the pre-tightening force to move the entire adjustment component, thereby moving the upper lens of the lens to be glued, and finally adjusting the two lenses to be coaxial. In practical applications, the present invention can greatly simplify the adjustment mechanism, reduce the processing requirements for the adjustment mechanism; has a wider application range, and greatly improves the processing accuracy, efficiency and adaptability of the glued lenses.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical element manufacturing and alignment, and particularly relates to a cemented lens adjustment system, a control method and an application thereof. Background Art

[0002] At present, in the optical field, in order to meet various requirements such as eliminating chromatic aberration, spherical aberration, and reducing the processing difficulty of lenses, it is often necessary to cement two or more lenses together; and the method of adjusting the cemented lenses will directly affect the cementing quality of the lenses. Therefore, the method of adjusting the cemented lenses is particularly important.

[0003] The commonly used method for adjusting cemented lenses in the prior art is the thimble method. After kneading and gluing two lenses to be cemented, one of the lenses is fixed, and 3 or more thimbles are used to push the outer circle of the other lens to adjust the relative position of the two lenses; after aligning the optical axes of the two lenses, the adjustment operation is completed. The disadvantages of the thimble method are as follows: First, there are certain requirements for the thickness of the lens to be adjusted. The thinner the lens thickness, the more difficult it is for the thimble to push against the outer circle of the lens. Second, since only one thimble can contact the lens at a time, the pushing direction of the lens cannot be accurately controlled. Third, since the relative movement between the lenses to be cemented slides along the spherical surface, the height of the outer circle of the lens changes. At this time, it is necessary to adjust the height position of the thimble, and there are high requirements for the straightness of the movement of the thimble. It is almost impossible to use for lenses with micron-level cementing accuracy and an edge thickness less than 2 mm. Fourth, it is very difficult to automate the thimble method, which reduces the work efficiency.

[0004] In summary, the problems existing in the prior art are:

[0005] (1) There are certain requirements for the thickness of the lens to be adjusted. The thinner the lens thickness, the more difficult it is for the thimble to push against the outer circle of the lens.

[0006] (2) Since only one thimble can contact the lens at a time, the pushing direction of the lens cannot be accurately controlled.

[0007] (3) Since the relative movement between the lenses to be cemented slides along the spherical surface, the height of the outer circle of the lens changes.

[0008] (4) It is very difficult to automate the thimble method, which reduces the work efficiency. Summary of the Invention

[0009] Aiming at the problems existing in the prior art, the present invention provides a cemented lens adjustment system, a control method and an application thereof.

[0010] The present invention is implemented as follows. A control method for adjusting a cemented lens includes:

[0011] Step 1: Place the lens to be glued, which has completed the kneading of the glue, on the lens base;

[0012] Step 2: Assemble the lens retaining ring, piston ring, upper housing, lower housing, protective shell, and elastomer according to the corresponding assembly relationships.

[0013] Step 3: Place the assembled adjusting component on the lens base, and press the lens retaining ring onto the upper edge of the upper lens among the lenses to be glued; under the gravity of the upper housing and the lower housing, the lens to be glued pushes the lens retaining ring upward, and the elastomer is compressed under force.

[0014] Step 4: Use the pressure generated by the elastomer as the pre-tightening force to move the entire adjusting component, thereby moving the upper lens among the lenses to be glued, and finally adjusting the two lenses to be coaxial.

[0015] Furthermore, in Step 1, when the lens to be glued is placed on the lens base, the lower lens is fixed by means such as set screws, clamping claws, or negative pressure.

[0016] Furthermore, in Step 2, after assembly, the piston rod can move up and down and automatically reset under the pressure of the elastomer.

[0017] Another object of the present invention is to provide a lens gluing adjustment system for implementing the control method of gluing lens adjustment, and the adjustment gluing lens device is provided with:

[0018] Lenses to be glued, the lenses to be glued are provided with a lower lens to be glued and an upper lens to be glued, and the lower lens to be glued is located below the upper lens to be glued;

[0019] The lower lens to be glued is placed on the lens base, and a lens retaining ring is pressed on the edge of the upper lens to be glued.

[0020] Furthermore, a piston ring is assembled on the upper edge of the lens retaining ring, and a protective shell is assembled on the upper edge of the piston ring; an upper housing is assembled at the upper end of the protective shell, a lower housing is assembled at the lower end of the upper housing, and an elastomer is assembled between the piston ring and the protective shell.

[0021] Another object of the present invention is to provide an application of the control method of gluing lens adjustment in the manufacturing and assembly and adjustment of optical elements.

[0022] In summary, the advantages and positive effects of the present invention are as follows: The present invention does not make any requirements on the thickness of the lenses to be glued. As long as the opening angle of the lens retaining ring is appropriate, it can adapt to lenses of any thickness; at the same time, when the lenses move relative to each other, the height change that occurs will be adaptively matched by the piston structure, and the retaining ring is in full contact with the lens to be glued and can achieve follow-up movement, providing a basis for adjusting the subsequent precise displacement.

[0023] If the lower mirror of the two mirrors of the lens to be glued is large and the upper mirror is small, and the thickness of the upper small mirror is relatively thin, it is impossible to ensure that when the lens retaining ring touches the upper lens, without contacting the lower lens, the lens retaining ring is designed into a structure that directly presses on the upper surface of the upper lens, and the pre-tightening force of the elastic material is increased (such as Figure 3 ), then this kind of glued lens can be adjusted in the same structural way.

[0024] In practical applications, the present invention can greatly simplify the adjustment mechanism, reduce the processing requirements for the adjustment mechanism; the present invention has a wider application range and can be applied to lenses of various thicknesses; it reduces the requirements for operators; improves the processing accuracy of glued lenses to the micron level; and greatly improves the efficiency and adaptability. Brief Description of the Drawings

[0025] Figure 1 It is a flowchart of the control method for adjusting the glued lens provided by the embodiment of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the glued lens adjustment system provided by the embodiment of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the lower lens to be glued, the upper lens to be glued and the protective shell provided by the embodiment of the present invention.

[0028] In the figure: 1, lens base; 2, lens retaining ring; 3, piston ring; 4, lower housing; 5, upper housing; 6, protective shell; 7, elastomer; 8, lower lens to be glued; 9, upper lens to be glued. Detailed Embodiments

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] In view of the problems existing in the prior art, the present invention provides a glued lens adjustment system and a control method. The present invention will be described in detail below with reference to the drawings.

[0031] As Figure 1 shown, the control method for adjusting the glued lens provided by the embodiment of the present invention includes the following steps:

[0032] S101: Place the lens to be glued after kneading glue on the lens base.

[0033] S102: Assemble the lens retaining ring, piston ring, upper housing, lower housing, protective shell, and elastomer according to the corresponding assembly relationship.

[0034] S103: Place the assembled adjusting component on the lens base, and press the lens retaining ring onto the upper edge of the upper one of the lenses to be glued; under the gravity of the upper housing and the lower housing, the lens to be glued pushes the lens retaining ring upward, and the elastic body is compressed under force.

[0035] S104: Use the pressure generated by the elastic body as the pre-tightening force to move the entire adjusting component, thereby moving the upper one of the lenses to be glued, and finally adjusting the two lenses to be coaxial.

[0036] In S101 provided by the embodiment of the present invention, the lens to be glued is placed on the lens base and fixed to the lower one by means of setscrews, claws or negative pressure, etc.

[0037] In S102 provided by the embodiment of the present invention, after assembly, the piston rod can move up and down and automatically reset under the pressure of the elastic body.

[0038] As Figures 2 - 3 shown, the gluing lens adjusting system provided by the embodiment of the present invention is provided with a lens to be glued, and the lens to be glued is provided with a lower lens 8 to be glued and an upper lens 9 to be glued, and the lower lens 8 to be glued is located below the upper lens 9 to be glued.

[0039] The lower lens 8 to be glued is placed on the lens base 1, and a lens retaining ring 2 is pressed on the edge of the upper lens 9 to be glued.

[0040] A piston ring 3 is assembled on the upper edge of the lens retaining ring 2, and a protective shell 6 is assembled on the upper edge of the piston ring 3; an upper housing 5 is assembled at the upper end of the protective shell 6, a lower housing 4 is assembled at the lower end of the upper housing 5, and an elastic body 7 is assembled between the piston ring 3 and the protective shell 6.

[0041] The working principle of the present invention is as follows: Place the lens to be glued after kneading glue on the lens base 1, and assemble the lens retaining ring 2, the piston ring 3, the upper housing 4, the lower housing 5, the protective shell 6, and the elastic body 7 according to the corresponding assembly relationship. Place the assembled adjusting component on the lens base 1, and press the lens retaining ring 2 onto the upper edge of the upper lens 9 to be glued in the lens to be glued; under the gravity of the lower housing 4 and the upper housing 5, the lens to be glued pushes the lens retaining ring 2 upward, and the elastic body 7 is compressed under force. Use the pressure generated by the elastic body 7 as the pre-tightening force to move the entire adjusting component, thereby moving the upper one of the lenses to be glued, and finally adjusting the two lenses to be coaxial.

[0042] If the lower one of the two lenses of the lens to be glued is large and the upper one is small (as Figure 2 ), and the thickness of the upper small lens is relatively thin, and it is impossible to ensure that when the lens retaining ring touches the upper lens, the lens retaining ring can be directly pressed on the upper surface of the upper lens without contacting the lower lens, and increasing the pre-tightening force of the elastic body, the same structural method can be used to adjust this type of glued lens.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A control method for adjusting a cemented lens, characterized in that, The control method for adjusting the glued lens includes the following steps: Step 1: Place the lens to be glued that has completed kneading on the lens base; Step 2: Assemble the lens retaining ring, piston ring, upper housing, lower housing, protective shell, and elastomer according to the corresponding assembly relationship. A piston ring (3) is assembled above the lens retaining ring (2), and a protective shell (6) is assembled above the piston ring (3). The upper end of the protective shell (6) is assembled with the upper housing (5), the lower end of the upper housing (5) is assembled with the lower housing (4), and an elastomer (7) is assembled between the piston ring (3) and the protective shell (6); Step 3: Place the assembled adjusting component on the lens base, and press the lens retaining ring onto the upper edge of the upper one of the lenses to be glued. Under the gravity of the upper housing and the lower housing, the lens to be glued pushes the lens retaining ring upward, and the elastomer is compressed under force; Step 4: Use the pressure generated by the elastomer as the pre-tightening force to move the entire adjusting component, thereby moving the upper one of the lenses to be glued and finally adjusting the two lenses to be coaxial; In the above Step 1, the lens to be glued is placed on the lens base and fixed to the lower one by means of set screws, claws, or negative pressure; In the above Step 2, after assembly, the piston rod moves up and down and automatically resets under the pressure of the elastomer; The glued lens adjusting system for implementing the control method for adjusting the glued lens is provided with: Lenses to be glued, which are provided with a lower lens to be glued and an upper lens to be glued, and the lower lens to be glued is located below the upper lens to be glued; The lower lens to be glued is placed on the lens base, and a lens retaining ring is pressed on the edge of the upper lens to be glued.

2. The control method for adjusting a cemented lens according to claim 1, characterized in that, A piston ring is assembled above the lens retaining ring, and a protective shell is assembled above the piston ring. The upper end of the protective shell is assembled with the upper housing, the lower end of the upper housing is assembled with the lower housing, and an elastomer is assembled between the piston ring and the protective shell.

3. Application of a control method for adjusting a cemented lens according to any one of claims 1-2 in the assembly and adjustment of optical element manufacturing.

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