CN204740397U - Slit lamp eyepiece graticule of focusing - Google Patents
Slit lamp eyepiece graticule of focusing Download PDFInfo
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- CN204740397U CN204740397U CN201520516534.XU CN201520516534U CN204740397U CN 204740397 U CN204740397 U CN 204740397U CN 201520516534 U CN201520516534 U CN 201520516534U CN 204740397 U CN204740397 U CN 204740397U
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- focusing
- eyepiece
- graticule
- urceolus
- inner tube
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Abstract
The utility model provides a slit lamp eyepiece graticule of focusing, including the graticule, eyepiece group, the eyepiece lens cone, the section of thick bamboo of focusing, the focal length setting diopter ring, the eyepiece lens cone includes urceolus and inner tube, the inner circle of urceolus and the outer lane threaded connection of inner tube, eyepiece group is two or above eyepiece including quantity, the eyepiece all sets up in an inner tube section of thick bamboo, the optics axis and the urceolus of all eyepieces, the central line coincidence of inner tube, can be along central line axial displacement between the interior urceolus, the urceolus is connected with the section of thick bamboo of focusing, the graticule setting is in the section of thick bamboo of focusing, and be located the formation of image light fence department of eyepiece group, the focal length setting diopter ring is connected with the outer lane of inner tube, set up the groove on the graticule. The utility model discloses convenient operation, user need not to connect external equipment and can realize the function of focusing can not taking place the damage of the solitary equipment of focusing or the problem of losing.
Description
Technical field
The utility model belongs to medical equipment field, is specifically related to the focus apparatus of slit-lamp eyepiece.
Background technology
Now, the eyepiece focus function of slit-lamp normally utilizes independent focusing rod to realize, its principle is as follows: the focusing of the illumination path of slit-lamp is positioned at the focusing plane position of focusing rod, the focusing of eye-observation light path also should in the focusing plane position of focusing rod in theory, both should overlap, and just can observe illumination image clearly.If also have other branch's light path, as digital imaging optical path, depending on religion mirror light path etc., its focusing also in the focusing plane position of focusing rod, all should should overlap.But when the eye eyesight of operator is nonstandard, there is (closely) apparent time far away, just do not see clear when being observed the focusing plane of focusing rod by observation optical path, at this moment just need to be regulated by refraction compensation, can see clearly clear by compensation when making operator observe the focusing plane of focusing rod, be called for short eyepiece and compensate focusing.This method has two point defects: (1) needs to prepare and fix focusing rod before testing, make the operation of equipment very inconvenient, (2) rod of focusing is independent function element outside, very possible damage or the loss causing focusing rod because of artificial error in usual use procedure.Based on above-mentioned 2 points, making operator feel very inconvenient, in the urgent need to improving existing scheme, focus function carrying out Improvement and perfection.
Utility model content
For above-mentioned defect and the problem of prior art, the object of the utility model embodiment is to provide a kind of slit-lamp eyepiece focusing graticule, and preset without the need to being carried out operation focusing by external equipment, structure is simple, utilization is reliable.
In order to achieve the above object, the utility model provides following technical scheme:
Slit-lamp eyepiece focusing graticule, comprise eyepiece lens barrel, eyepiece group, graticule, focusing cylinder, focus adjustment diopter ring, eyepiece lens barrel comprises urceolus and inner core, the inner ring of urceolus is threaded with the outer ring of inner core, it is two or more eyepieces that eyepiece group comprises quantity, eyepiece is all arranged in internal barrel, the optical axial of all eyepieces and urceolus, the center line of inner core overlaps, can move axially along center line between inner/outer tube, urceolus is fixedly connected with focusing cylinder, focus adjustment diopter ring is connected with the outer ring of inner core, graticule is arranged in focusing cylinder, and be positioned at the imaging hurdle place of eyepiece group, graticule is light transmission piece, graticule arranges groove simultaneously.
Further, the distance between the groove on graticule is even.
Further, the inner ring of urceolus arranges screw thread, and the outer ring of inner core arranges screw thread, is threaded connection between inner core and urceolus, thus changes the axial distance between inner/outer tube.
The advantage of the slit-lamp eyepiece focusing graticule that the utility model provides is:
1) structure simple, operate simple and easy, without the need to being carried out operation focusing setting by external equipment;
2) use reliably, together with being connected directly between with the eyepiece of slight crack lamp, be not easy the damage or the loss that cause focus apparatus.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Wherein: 1, eyes, 2, focus adjustment diopter ring, 3, inner core, 4, graticule, 5, eyepiece, 6, urceolus, 7, focusing cylinder.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, be clearly and completely described the technical solution of the utility model, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, slit-lamp eyepiece focusing graticule of the present utility model, comprise eyepiece group, eyepiece lens barrel, graticule, focusing cylinder, focus adjustment diopter ring, eyepiece lens barrel comprises urceolus and inner core, the inner ring of urceolus is connected with the outer ring of inner core, in the present embodiment, it is three eyepieces that eyepiece group comprises quantity, all be arranged in internal barrel, the optical axial of all eyepieces and urceolus, the center line of inner core overlaps, can move axially along center line between inner/outer tube, urceolus is fixedly connected with focusing cylinder, graticule is arranged in focusing cylinder, and be positioned at the imaging hurdle place of eyepiece group, focus adjustment diopter ring is fixedly installed on the outer ring of inner core, graticule is light transmission piece, and the surface of graticule arranges groove, distance between groove is even.
The eyesight of different users is each variant, before slight crack lamp detects, needs to compensate focusing.When using the present embodiment to focus, the eyes of user observe the groove on graticule through eyepiece, user is rotary coke distance regulating diopter circle manually, and then drive the inner core being provided with eyepiece group, thus the axial distance between change inner/outer tube, due to urceolus with focusing cylinder be fixedly connected with, have also been changed inner core with focusing cylinder directly by axial distance, make the eyepiece in inner core and focusing cylinder in graticule between distance to compensate focusing.When can observe the groove on graticule clearly as user, then focus.Now, the focus of observation optical path is consistent with using the focus of focusing on the focusing plane of rod, reaches the object of replacing focusing rod.
Slit-lamp eyepiece that the utility model provides focusing graticule, structure is simple, it is simple and easy to operate, and without the need to being carried out operation focusing setting by external equipment, together with being connected directly between, is not easy the damage or the loss that cause focus apparatus with the eyepiece of slight crack lamp.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (2)
1. slit-lamp eyepiece focusing graticule, it is characterized in that: comprise eyepiece lens barrel, eyepiece group, graticule, focusing cylinder, focus adjustment diopter ring, described eyepiece lens barrel comprises urceolus and inner core, the inner ring of described urceolus is threaded with the outer ring of inner core, it is two or more eyepieces that described eyepiece group comprises quantity, described eyepiece is all arranged in internal barrel, the optical axial of all eyepieces and urceolus, the center line of inner core all overlaps, can move axially along center line between inner/outer tube, described urceolus is fixedly connected with focusing cylinder, described focus adjustment diopter ring is connected with the outer ring of inner core, described graticule is arranged in focusing cylinder, and be positioned at the imaging hurdle place of eyepiece group, described graticule is light transmission piece, and graticule arranges groove.
2. slit-lamp eyepiece focusing graticule according to claim 1, is characterized in that: the distance between the groove on described graticule is even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516534.XU CN204740397U (en) | 2015-07-16 | 2015-07-16 | Slit lamp eyepiece graticule of focusing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516534.XU CN204740397U (en) | 2015-07-16 | 2015-07-16 | Slit lamp eyepiece graticule of focusing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204740397U true CN204740397U (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520516534.XU Active CN204740397U (en) | 2015-07-16 | 2015-07-16 | Slit lamp eyepiece graticule of focusing |
Country Status (1)
| Country | Link |
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| CN (1) | CN204740397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785563A (en) * | 2016-05-10 | 2016-07-20 | 安纲 | Hair follicle counting mirror |
-
2015
- 2015-07-16 CN CN201520516534.XU patent/CN204740397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785563A (en) * | 2016-05-10 | 2016-07-20 | 安纲 | Hair follicle counting mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |