JPH049011U - - Google Patents
Info
- Publication number
- JPH049011U JPH049011U JP4812990U JP4812990U JPH049011U JP H049011 U JPH049011 U JP H049011U JP 4812990 U JP4812990 U JP 4812990U JP 4812990 U JP4812990 U JP 4812990U JP H049011 U JPH049011 U JP H049011U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- path length
- optical path
- magnifying glass
- object surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
Landscapes
- Lens Barrels (AREA)
- Lenses (AREA)
Description
第１図は本考案の第１実施例に係るルーペの縦
断面図、第２図は第１図のルーペの主要部の構成
を断面にして示した分解斜視図、第３図ａ，ｂは
第１図のルーペの変倍機構の作動状態を示す断面
斜視図、第４図は本考案の第２実施例に係るルー
ペの概略分解斜視図、第５図は第４図のルーペの
概略構成を示す縦断面図、第６図は第１、第２実
施例の接眼レンズの光路長と対物レンズの光路長
との関係を示すグラフ、第７図は本考案の第３実
施例に係るルーペの要部縦断面図、第８図は従来
のルーペの概略縦断面図である。
符号の説明、１……ルーペ、２……レンズ、２
１……対物レンズ、２２……接眼レンズ、３……
鏡筒、４……物体面、５……内筒、６……外筒、
７……フランジ、１０……レンズ枠、１１……ピ
ン、１２，１２′……カム溝、１３，１３′……
スリツト、３０……鏡筒、３１……第１鏡筒、３
２……第２鏡筒、４１，４３……第１、第２ねじ
溝、４２，４４……第１、第２ねじ山。
Fig. 1 is a longitudinal cross-sectional view of a magnifying glass according to a first embodiment of the present invention, Fig. 2 is an exploded perspective view showing the structure of the main parts of the magnifying glass in Fig. 1 in cross section, and Fig. 3 a and b are FIG. 4 is a schematic exploded perspective view of the magnifying glass according to the second embodiment of the present invention, and FIG. 5 is a schematic configuration of the magnifying glass of FIG. 4. 6 is a graph showing the relationship between the optical path length of the eyepiece lens and the optical path length of the objective lens in the first and second embodiments, and FIG. 7 is a loupe according to the third embodiment of the present invention. FIG. 8 is a schematic longitudinal sectional view of a conventional magnifying glass. Explanation of symbols, 1... Loupe, 2... Lens, 2
1... Objective lens, 22... Eyepiece lens, 3...
Lens barrel, 4...Object surface, 5...Inner tube, 6...Outer tube,
7...Flange, 10...Lens frame, 11...Pin, 12, 12'...Cam groove, 13, 13'...
Slit, 30... Lens barrel, 31... First lens barrel, 3
2...Second lens barrel, 41, 43...First and second thread grooves, 42, 44...First and second threads.
Claims (1)
該鏡筒の一端を拡大すべき物体面に当接し、前記
レンズを通して物体像を光学的虚像として拡大し
て観察するルーペにおいて、 前記レンズを対物レンズと接眼レンズとから構
成し、前記鏡筒には、前記対物レンズと物体面間
の光路長および前記接眼レンズから物体面間の光
路長のうち、少なくともいずれか一方の光路長を
無段階に可変とする変倍機構を設けて成ることを
特徴とするルーペ。[Claims for Utility Model Registration] Comprising a lens and a lens barrel that holds the lens,
In a magnifying glass in which one end of the lens barrel is brought into contact with the object surface to be magnified and the object image is magnified and observed as an optical virtual image through the lens, the lens is composed of an objective lens and an eyepiece; is characterized by being provided with a variable magnification mechanism that steplessly varies the optical path length of at least one of the optical path length between the objective lens and the object surface and the optical path length between the eyepiece lens and the object surface. A magnifying glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4812990U JPH049011U (en) | 1990-05-10 | 1990-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4812990U JPH049011U (en) | 1990-05-10 | 1990-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH049011U true JPH049011U (en) | 1992-01-27 |
Family
ID=31564668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4812990U Pending JPH049011U (en) | 1990-05-10 | 1990-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426082U (en) * | 1977-07-25 | 1979-02-20 | ||
| JPH02140782U (en) * | 1989-04-28 | 1990-11-26 |
-
1990
- 1990-05-10 JP JP4812990U patent/JPH049011U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426082U (en) * | 1977-07-25 | 1979-02-20 | ||
| JPH02140782U (en) * | 1989-04-28 | 1990-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6432529U (en) | ||
| JPH049011U (en) | ||
| JPS5921362Y2 (en) | zoom lens barrel | |
| JPH032316U (en) | ||
| JPS589208Y2 (en) | Endoscope | |
| JPS6168205U (en) | ||
| JPS62113312U (en) | ||
| JPS5841523Y2 (en) | Endoscope | |
| JPS6150919U (en) | ||
| JPH0235109U (en) | ||
| JPS6384107U (en) | ||
| JPS6291618U (en) | ||
| JPS61176517U (en) | ||
| JPS63138511U (en) | ||
| JPS6081496U (en) | telescopic sight mirror | |
| JPH0443215U (en) | ||
| JPH0324621U (en) | ||
| JPS626715U (en) | ||
| JPS61126222U (en) | ||
| JPS63101914U (en) | ||
| JPS62106208U (en) | ||
| JPH0354909U (en) | ||
| JPH0349513U (en) | ||
| JPS6320116U (en) | ||
| JPS6380527U (en) |