JPH0422708U - - Google Patents
Info
- Publication number
- JPH0422708U JPH0422708U JP6271190U JP6271190U JPH0422708U JP H0422708 U JPH0422708 U JP H0422708U JP 6271190 U JP6271190 U JP 6271190U JP 6271190 U JP6271190 U JP 6271190U JP H0422708 U JPH0422708 U JP H0422708U
- Authority
- JP
- Japan
- Prior art keywords
- lead spiral
- focusing
- ring member
- spiral groove
- fixed
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は望遠鏡の粗微動機構組付部の縦断面図
、第２図は同横断面図（第１図に示す線−に
沿う断面図）、第３図は外筒と内筒の組付部の横
断面図（第１図に示す線−に沿う断面図）、
第４図は同機構の要部分解斜視図、第５図は内筒
の側面図、第６図は従来の粗微動機構を一部破断
して示す斜視図である。
１０……視準用望遠鏡の鏡筒、２０……外筒、
２２……開口部、２４……回り止め本機構の一部
であるピン、３０……内筒、３２……合焦レンズ
、３４……回り止め機構の一部である長孔、３６
，３６ａ，３６ｂ，３６ｃ……小リード螺旋溝、
４０……合焦つまみ、４４……大リード螺旋溝、
６０……リング部材、６４……ピン、６６……鋼
球。
Figure 1 is a longitudinal cross-sectional view of the telescope's coarse and fine movement mechanism assembly, Figure 2 is a cross-sectional view of the same (a cross-sectional view taken along the line - shown in Figure 1), and Figure 3 is an assembly of the outer cylinder and inner cylinder. A cross-sectional view of the attached part (a cross-sectional view along the line − shown in FIG. 1),
FIG. 4 is an exploded perspective view of essential parts of the same mechanism, FIG. 5 is a side view of the inner cylinder, and FIG. 6 is a partially cutaway perspective view of the conventional coarse and fine movement mechanism. 10... Lens barrel of sighting telescope, 20... Outer barrel,
22...Opening portion, 24...Pin that is part of the main detent mechanism, 30...Inner tube, 32...Focusing lens, 34...Elongated hole that is part of the detent mechanism, 36
, 36a, 36b, 36c...small lead spiral groove,
40...Focusing knob, 44...Large lead spiral groove,
60...Ring member, 64...Pin, 66...Steel ball.
Claims (1)
口部が形成された外筒と、合焦レンズを保持する
とともに、外周面に前記開口部に対応する複数の
小リード螺旋溝が形成され、前記外筒に対し回り
止めされて軸方向前後に摺動可能に組み付けられ
た内筒と、鏡筒の内側に支承されるとともに、前
記外筒の外側に配置され、内側に大リード螺旋溝
の形成された合焦つまみと、前記軸筒部の大リー
ド螺旋溝と係合するピンが突設され、前記合焦つ
まみ内側の前記外筒側開口部形成位置に配置され
たリング部材と、前記リング部材の内側と前記内
筒側各小リード螺旋溝間にそれぞれ介装された鋼
球とからなることを特徴とする合焦レンズ粗微動
機構。 An outer barrel that is fixed within the lens barrel and has a plurality of openings formed at equal intervals in the circumferential direction, holds a focusing lens, and has a plurality of small lead spiral grooves corresponding to the openings formed on the outer peripheral surface. an inner cylinder which is fixed to the outer cylinder and is assembled so as to be able to slide back and forth in the axial direction; a focusing knob having a groove formed therein; a ring member having a protruding pin that engages with a large lead spiral groove of the shaft cylinder portion and disposed at a position where the outer cylinder side opening is formed inside the focusing knob; . A focusing lens coarse and fine movement mechanism comprising steel balls interposed between the inner side of the ring member and between each small lead spiral groove on the inner cylinder side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6271190U JP2533121Y2 (en) | 1990-06-15 | 1990-06-15 | Focusing lens coarse / fine movement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6271190U JP2533121Y2 (en) | 1990-06-15 | 1990-06-15 | Focusing lens coarse / fine movement mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0422708U true JPH0422708U (en) | 1992-02-25 |
| JP2533121Y2 JP2533121Y2 (en) | 1997-04-23 |
Family
ID=31592110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6271190U Expired - Lifetime JP2533121Y2 (en) | 1990-06-15 | 1990-06-15 | Focusing lens coarse / fine movement mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533121Y2 (en) |
-
1990
- 1990-06-15 JP JP6271190U patent/JP2533121Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533121Y2 (en) | 1997-04-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |