CN203455992U - Thin lens focal length vernier device - Google Patents
Thin lens focal length vernier device Download PDFInfo
- Publication number
- CN203455992U CN203455992U CN201320461510.XU CN201320461510U CN203455992U CN 203455992 U CN203455992 U CN 203455992U CN 201320461510 U CN201320461510 U CN 201320461510U CN 203455992 U CN203455992 U CN 203455992U
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- focal length
- screw rod
- lens focal
- thin lens
- vernier device
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Abstract
A thin lens focal length vernier device is characterized in that the thin lens focal length vernier device is provided with a screw rod; two ends of the screw rod are connected with mounting seats; the screw rod is provided with a sleeve connected with a shift fork; the screw rod is provided with adjusting handwheels. The beneficial effects are that the thin lens focal length vernier device can be used with an optical bench so as to carry out measuring tests of thin lens focal length, and the handwheels can be employed to accurately adjust the lens focal length; and the thin lens focal length vernier device is simple in structure and operation.
Description
Affiliated technical field
The utility model relates to a kind of physics facility, adjusts the focal distance of thin convex lens micromatic setting of focal distance of thin convex lens during in particular for the experiments of measuring of focal distance of thin convex lens.
Background technology
The measurement of focal distance of thin convex lens is a content in Experiment of College Physics, and this is tested mainly according to lens imaging principle, by after optics guide rail horizontal positioned, places a plurality of smooth tool stools on optics guide rail, and picture screen, lens folder, light source etc. are installed respectively on light tool stool.When focusing, need to operator be had relatively high expectations with the direct mobile light tool stool of hand, and waste time and energy while regulating, precision is also lower.
Summary of the invention
For solving the above problems, the utility model provides a kind of focal distance of thin convex lens micromatic setting, and this focal distance of thin convex lens micromatic setting can regulate the focal length of lens accurately by handwheel.
The technical scheme that the utility model technical solution problem adopts is: invent a kind of focal distance of thin convex lens micromatic setting, be characterized in, focal distance of thin convex lens micromatic setting has a screw rod, screw rod two ends erection support, installing sleeve on screw rod, connects shift fork on sleeve, control hand wheel is installed on screw rod.
The beneficial effects of the utility model are that the utility model and optical bench coordinate the experiments of measuring for focal distance of thin convex lens, can regulate accurately the focal length of lens by handwheel, have feature simple in structure, easy and simple to handle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Front view when accompanying drawing 1 is the present embodiment use, accompanying drawing 2 is vertical views of the present embodiment, left view when accompanying drawing 3 is the present embodiment use.
1 bearing in figure, 2 screw rods, 3 control hand wheels, 4 sleeves, 5 forward shift forks, 6 is top, 7 picture screen light tool stools, 8 reverse shift forks, 9 lens light tool stools, 10 set nuts, 11 optical bench levelling bolts, 12 thing screen light tool stools, 13 light source light tool stools, 14 light sources, 15 optics guide rails.
Embodiment
As shown in Figure 2, being constructed as follows of the present embodiment, bearing 1 is arranged on the two ends of screw rod 2 by screw thread, bearing 1 is locked by set nut 10, control hand wheel 3 is arranged on screw rod 2 by screw thread, sleeve 4 is enclosed within on screw rod 2 and can slides, and forward shift fork 5 and oppositely shift fork 8 are separately fixed on sleeve 4, and forward shift fork 5 and oppositely shift fork 8 front ends are all provided with top 6.
As shown in accompanying drawing 1 and accompanying drawing 3, being constructed as follows of optical bench, is placed on optics guide rail 15 as screen light tool stool 7, lens light tool stool 9, thing screen light tool stool 12, light source light tool stool 13.Light source 14 is arranged on light source light tool stool 13, and optical bench levelling bolt 11 is arranged on optics guide rail 15 bottoms, for adjusting the levelness of optics guide rail 15.
During use, the present embodiment and optical bench are installed side by side, made screw rod 2 parallel with the longitudinal axis of optics guide rail 15, forward shift fork 5 and oppositely shift fork 8 ride on optics guide rail 15, and top 6 of its front end is positioned at directly over the longitudinal axis of optics guide rail 15.During the coarse adjustment focal length of lens, forward shift fork 5 and reverse shift fork 8 are lifted, with hand, move picture screen light tool stool 7 and lens light tool stool 9, with the visual preliminary position of determining them.During fine tuning, forward shift fork 5 and the both sides that reverse shift fork 8 lays respectively at the light tool stool that needs adjustment are ridden on optics guide rail 15, rotate control hand wheel 3 by hand and promote sleeve 4, sleeve 4 drives respectively forward shift fork 5 and reverse shift fork 8 to promote light tool stools, on coarse adjustment basis, according to imaging law, do careful adjusting, until the image on picture screen is satisfied.Now just can accurately record the focal length of lens.
Claims (1)
1. focal distance of thin convex lens micromatic setting, is characterized in that: focal distance of thin convex lens micromatic setting has a screw rod, described screw rod two ends erection support, and installing sleeve on described screw rod, connects shift fork on described sleeve, on described screw rod, control hand wheel is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461510.XU CN203455992U (en) | 2013-07-22 | 2013-07-22 | Thin lens focal length vernier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461510.XU CN203455992U (en) | 2013-07-22 | 2013-07-22 | Thin lens focal length vernier device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455992U true CN203455992U (en) | 2014-02-26 |
Family
ID=50135853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461510.XU Expired - Fee Related CN203455992U (en) | 2013-07-22 | 2013-07-22 | Thin lens focal length vernier device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945626A (en) * | 2017-06-17 | 2018-04-20 | 浙江大学城市学院 | A kind of mechanical fine motion inclined-plane measurement friction coefficient experiment instrument |
-
2013
- 2013-07-22 CN CN201320461510.XU patent/CN203455992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945626A (en) * | 2017-06-17 | 2018-04-20 | 浙江大学城市学院 | A kind of mechanical fine motion inclined-plane measurement friction coefficient experiment instrument |
| CN107945626B (en) * | 2017-06-17 | 2023-12-29 | 浙江大学城市学院 | Mechanical type micro-dynamic inclined plane friction coefficient measuring experiment instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |