Eyepiece with telescopic eye shield
The retractable eye shield, designed with a guide component, solves the problem that fixed eye shields cannot adapt to different exit pupil distances, achieving adaptive adjustment and preventing loss, thus improving the user experience of the microscope.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
The fixed eye shields of existing microscopes cannot meet the light-blocking requirements of different exit pupil distances, and are easily lost when not in use.
The retractable goggle design utilizes a guide assembly consisting of a rigid first guide and a flexible second guide that engages with a guide groove to allow for movable assembly of the goggle, adaptive adjustment of its fixed height, and ensures that the goggle does not come off through the gap and interference fit of the guide groove.
The eye mask features adaptive adjustment to meet the light-blocking requirements of different exit pupil distances, while also preventing loss and improving the user experience.
Smart Images
Figure CN224052498U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical microscope technical field, especially relate to a eyepiece with telescopic eye shield. BACKGROUND
[0002] With the high -speed development of optical industry, in the military industry, industry, medical treatment, education, consumption etc. Field uses the scene of microscope to observe more and more, and eyepiece as the key component of microscope, its comfort and light isolation capacity directly influence user experience, therefore, in order to improve light isolation capacity, often add the eye shield of through rubber material integrated molding on eyepiece.
[0003] The market usually adopts fixed eye shield, so that the fixed height cannot meet the light shielding requirement of eyepiece with different pupil distance, and the eye shield is easy to lose after being removed when not in use. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model provides a eyepiece with telescopic eye shield to solve the above problems, which can self-adaptively adjust the fixed height of the eye shield to meet the light shielding requirement of eyepieces with different pupil distances, and the eye shield will not be lost.
[0005] To achieve the above object, the utility model provides the technical scheme as follows:
[0006] The utility model provides a eyepiece with telescopic eye shield, including eyepiece body, still including eye shield, the eye shield is through the movable assembly of guide component in the outer circumferential surface of the eyepiece body, the guide component includes rigid first guide piece, elastic second guide piece and the guide groove of cooperation first guide piece and second guide piece respectively, the first guide piece is inserted in the guide groove corresponding to it with clearance fit, the second guide piece is inserted in the guide groove corresponding to it with interference fit.
[0007] Further, the circumferential wall of the eye shield is provided with the guide groove, and the guide groove penetrates the inner and outer surfaces of the eye shield, the outer circumferential surface of the eyepiece body is provided with the first guide piece and the second guide piece, the eye shield is limited by the first guide piece, so that the eye shield can slide on the eyepiece body and not fall out, the eye shield is limited by the second guide piece, so that the eye shield can be fixed on the eyepiece body.
[0008] Further, the guide groove is a square groove extending along the axial direction of the eyepiece body, the gap fit is formed between the outward end of the first guide piece and the groove wall of the guide groove, and when the eye shield is fixed on the eyepiece body, the interference fit is formed between the outward end of the second guide piece and the groove wall of the guide groove.
[0009] Further, the first guide piece is a first screw, and the second guide piece is a second screw.
[0010] Further, the eyepiece body comprises an eyepiece seat for assembling a lens group, and a sleeve ring and an eyepiece connecting seat assembled on the outer circumferential surface of the eyepiece seat; the outer circumferential wall of the sleeve ring is provided with screw holes matched with the first guide piece and the second guide piece, the threaded shanks of the first guide piece and the second guide piece pass through the corresponding guide grooves and are screwed into the screw holes; and the eye shield is movably sleeved on the eyepiece connecting seat.
[0011] Further, the plurality of guide grooves are equidistantly arranged in a ring on the circumferential wall of the eye shield.
[0012] Further, the first guide piece is a metal screw, and the second guide piece is a plastic screw.
[0013] Further, the metal screw is a stainless steel screw or a copper alloy screw, and the plastic screw is a polyformaldehyde screw or a nylon screw.
[0014] Further, the outer circumferential surface of the eye shield is sleeved with an elastic protective sleeve to shield the first guide piece and the second guide piece.
[0015] Further, the protective sleeve is a rubber sleeve.
[0016] The technical scheme has the following beneficial effects:
[0017] Through cooperation of the guide assembly, the eye shield is movably assembled on the outer circumferential surface of the eyepiece body, the guide grooves of the eye shield are respectively limited by the first guide piece and the second guide piece, the first guide piece and the second guide piece are ensured to form a sliding connection in the corresponding guide grooves and cannot be taken out, the fixed height of the eye shield is adaptively adjusted, the eye shield cannot be taken out, the light shielding requirement of the eyepiece with different exit pupil distances is met, and the eye shield cannot be lost when not in use. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 Fig. 2 is an exploded view of the eyepiece with the telescopic eye shield in the embodiment;
[0019] Figure 2 Fig. 3 is a sectional view of the eyepiece with the telescopic eye shield in the embodiment;
[0020] Figure 3 Fig. 4 is an assembly schematic view of each guide piece and guide groove in the embodiment. DETAILED DESCRIPTION
[0021] To further illustrate the embodiments, the utility model provides with the drawings. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can be explained with the related description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementation ways and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0022] The utility model is further illustrated in conjunction with the drawings and specific embodiments.
[0023] Referring to Figures 1 to 3 , the embodiment provides an eyepiece (hereinafter referred to as eyepiece) with a telescopic eye shield, which is used as a key component of an optical microscope.
[0024] As Figure 1 and Figure 2 shown, the eyepiece of the embodiment includes an eyepiece body 100, and further includes an eye shield 2, which is movably assembled to the outer peripheral surface of the eyepiece body 100 through a guide assembly 200.
[0025] The guide assembly 200 includes a rigid first guide 7, an elastic second guide 8, and a guide groove 21 matched with the first guide 7 and the second guide 8 respectively, the first guide 7 is inserted into the corresponding guide groove 21 in a clearance fit, and the second guide 8 is inserted into the corresponding guide groove 21 in an interference fit.
[0026] In the embodiment, as Figure 3 shown, the number of first guides 7 is two, the number of second guides 8 is one, and the specific first guide 7 is a first screw, and the specific second guide 8 is a second screw. Of course, in other embodiments, the number of first guides 7 can also be one or more than three, and the number of second guides 8 can also be more than two, and the number of guide grooves 21 is correspondingly set.
[0027] As Figure 2 and Figure 3 shown, the circumferential wall of the eye shield 2 is provided with three guide grooves 21, the guide grooves 21 penetrate the inner and outer surfaces of the eye shield 2, and the guide grooves 21 are square grooves or straight grooves extending along the upper and lower axes of the eyepiece body 100.
[0028] The outer peripheral surface of the eyepiece body 100 is provided with the first guide 7 and the second guide 8, and in use, the eye shield 2 is limited by the first guide 7, so that the eye shield 2 can slide up and down on the eyepiece body 100 without falling out, and at the same time, the eye shield 2 is limited by the second guide 8, so that the eye shield 2 can be fixed on the eyepiece body 100.
[0029] More specifically, the gap is formed between the outer end of the first guide member 7 and the groove wall of the guide groove 21 to ensure that the eye shield 2 moves along the axial direction of the eyepiece body 100 through the first guide member 7 and plays a guiding role, i.e. adjusting the fixed height of the eye shield 2 on the eyepiece body 100, and the eye shield 2 does not move out of the limitation of the first guide member 7 during the movement, i.e. the eye shield 2 is always connected to the eyepiece body 100 and does not move out.
[0030] When the fixed height of the eye shield 2 is adjusted and needs to be fixed on the eyepiece body 100, the interference fit is formed between the outer end of the second guide member 8 and the groove wall of the guide groove 21 to limit the movement of the eye shield 2, so that the eye shield 2 can be fixed at any height.
[0031] Through the cooperation of the guide assembly 200, the eye shield 2 can be movably assembled on the outer circumferential surface of the eyepiece body 100, and the guide groove 21 of the eye shield 2 is limited by the first guide member 7 and the second guide member 8, which ensures that the first guide member 7 and the second guide member 8 are slidably connected in the corresponding guide groove 21 and do not move out, thereby adaptively adjusting the fixed height of the eye shield 2 and not moving out, thereby meeting the light shielding requirements of eyepieces with different exit pupil distances, and the eye shield 2 will not be lost when not in use.
[0032] Of course, in other embodiments, the positions of the guide groove 21 and the guide members (such as the first guide member 7 and the second guide member 8) can be interchanged, which will not be described in detail here.
[0033] In addition, the eye shield 2 and the eyepiece body 100 can also be connected by threads, which can also adjust the fixed height of the eye shield 2 on the eyepiece body 100, but the structure is complex, the appearance is large, and the adjustment speed is slow.
[0034] In another preferred embodiment, as shown in Figure 1 and Figure 2 The eyepiece body 100 includes an eyepiece seat 1 for assembling the lens group 4, and a sleeve ring 3 and an eyepiece connecting seat 5 assembled on the outer circumferential surface of the eyepiece seat 1, at this time the sleeve ring 3 and the eyepiece connecting seat 5 are located on the two sides of the axial direction of the eyepiece seat 1, and the sleeve ring 3 is sleeved on the eyepiece seat 1 and forms a threaded connection.
[0035] As shown in Figure 1 and Figure 3 The outer circumferential wall of the sleeve ring 3 is provided with screw holes 31 matched with two first guide members 7 and one second guide member 8, the threaded sleeves of the first guide member 7 and the second guide member 8 pass through the corresponding guide grooves 21 respectively, and are screwed into the corresponding screw holes 31, and the eye shield 2 is movably sleeved on the eyepiece connecting seat 5 and extends to the sleeve ring 3.
[0036] In the embodiment, the first guide 7 is a metal screw, and the second guide 8 is a plastic screw. For example, the metal screw is a stainless steel screw or a copper alloy screw, and the plastic screw is a polyformaldehyde screw or a nylon screw. In this case, the outward end of the first guide 7 and the outward end of the second guide 8 are the head of the respective screw.
[0037] When the fixed height of the eye shield 2 needs to be adjusted, the second guide 8 is loosened first, and then the eye shield 2 is slid up and down along the guide direction of the guide slot 21 until the desired fixed height is reached. Then, the second guide 8 is tightened to fix the eye shield 2.
[0038] In summary, the guide structure composed of the guide pin and the guide slot 21 is adopted in the embodiment, and the sliding torque of the eye shield 2 is controlled by the plastic guide pin, so that the eye shield 2 can be suspended or slidably arranged.
[0039] Further preferably, as shown in Figure 3 The three guide slots 21 are arranged in a ring around the circumferential wall of the eye shield 2 at equal intervals, so as to further ensure that the eye shield 2 can be stably slid on the ocular lens connecting seat 5.
[0040] Further preferably, as shown in Figure 1 and Figure 2 The outer circumferential surface of the eye shield 2 is sleeved with a flexible protective sleeve 6, and the protective sleeve 6 is a rubber sleeve, so as to shield the first guide 7 and the second guide 8, thereby realizing the overall appearance and avoiding direct contact with the user, i.e. avoiding injury.
[0041] Of course, in other embodiments, the protective sleeve 6 can also be a silica gel sleeve or other flexible plastic sleeve.
[0042] Although the utility model is specifically shown and introduced in combination with the preferred embodiment, it should be understood by those skilled in the art that various changes can be made in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all the changes are within the protection scope of the utility model.
Claims
1. An eyepiece having a telescoping eye shield, comprising an eyepiece body, characterized by: The eye protection cover is further provided; The eye protection cover is movably assembled to the outer circumferential surface of the eyepiece body through a guide assembly; The guide assembly comprises a rigid first guide, an elastic second guide, and guide grooves matched with the first guide and the second guide respectively, the first guide is inserted into the corresponding guide groove in a clearance fit, and the second guide is inserted into the corresponding guide groove in an interference fit.
2. The eyepiece with retractable eye shield of claim 1, wherein: The circumferential wall of the eye protection cover is provided with the guide grooves, and the guide grooves penetrate the inner and outer surfaces of the eye protection cover; the outer circumferential surface of the eyepiece body is provided with the first guide and the second guide; the eye protection cover is limited by the first guide, so that the eye protection cover can slide on the eyepiece body without falling off; the eye protection cover is limited by the second guide, so that the eye protection cover can be fixed on the eyepiece body.
3. The eyepiece with retractable eye shield of claim 2, wherein: The guide groove is a square groove extending along the axial direction of the eyepiece body, the clearance fit is formed between the outward end of the first guide and the groove wall of the guide groove; and when the eye protection cover is fixed on the eyepiece body, the interference fit is formed between the outward end of the second guide and the groove wall of the guide groove.
4. The eyepiece with retractable eye shield according to any one of claims 1-3, wherein: The number of the first guide is at least two, and the number of the second guide is at least one; the first guide is a first screw, and the second guide is a second screw.
5. The eyepiece with retractable eye shield of claim 4, wherein: The eyepiece body comprises an eyepiece seat for assembling a lens group, a sleeve ring assembled on the outer circumferential surface of the eyepiece seat, and an eyepiece connecting seat; the outer circumferential wall of the sleeve ring is provided with screw holes matched with the first guide and the second guide, the threaded shanks of the first guide and the second guide pass through the corresponding guide grooves and are screwed into the screw holes; and the eye protection cover is movably sleeved on the eyepiece connecting seat.
6. The eyepiece with retractable eye shield of claim 4, wherein: A plurality of guide grooves are arranged in a ring on the circumferential wall of the eye protection cover at equal intervals.
7. The eyepiece with retractable eye shield of claim 6, wherein: The first guide is a metal screw, and the second guide is a plastic screw.
8. The eyepiece with retractable eye shield of claim 7, wherein: The metal screw is a stainless steel screw or a copper alloy screw; and the plastic screw is a polyformaldehyde screw or a nylon screw.
9. The eyepiece with retractable eye shield of claim 5, wherein: The outer circumferential surface of the eye protection cover is sleeved with an elastic protective sleeve to shield the first guide and the second guide.
10. The eyepiece with retractable eye shield of claim 9, wherein: The protective sleeve is a rubber sleeve.