JPH0290812U - - Google Patents
Info
- Publication number
- JPH0290812U JPH0290812U JP17051788U JP17051788U JPH0290812U JP H0290812 U JPH0290812 U JP H0290812U JP 17051788 U JP17051788 U JP 17051788U JP 17051788 U JP17051788 U JP 17051788U JP H0290812 U JPH0290812 U JP H0290812U
- Authority
- JP
- Japan
- Prior art keywords
- helicoid
- lens
- lens barrel
- optical axis
- spring
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案の一実施例のレンズ鏡胴におけ
る要部の断面図、第２図は従来のレンズ鏡胴の要
部の断面図、第３図はレンズ鏡胴の全体の側面図
である。
１２……フオーカシング部、１３……ヘリコイ
ド、１４……外枠、１５……Ｌ１レンズ、１６…
…Ｌ２レンズ、１７……Ｌ３レンズ、１９……ば
ね、Ｌ……光軸。
Figure 1 is a sectional view of the main parts of a lens barrel according to an embodiment of the present invention, Figure 2 is a sectional view of the main parts of a conventional lens barrel, and Figure 3 is a side view of the entire lens barrel. be. 12... Focusing section, 13... Helicoid, 14... Outer frame, 15... L1 lens, 16...
...L2 lens, 17...L3 lens, 19...spring, L...optical axis.
Claims (1)
ドとこのヘリコイドと螺合する外枠との間に、両
者の光軸方向の間隔を広げる方向に付勢するばね
を配設したことを特徴とするレンズ鏡胴。 A lens barrel characterized in that a spring is disposed between a helicoid that accommodates a lens of a focusing section and an outer frame that is screwed together with the helicoid, and that biases the helicoid in a direction that widens the distance between the two in the optical axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17051788U JPH0290812U (en) | 1988-12-29 | 1988-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17051788U JPH0290812U (en) | 1988-12-29 | 1988-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290812U true JPH0290812U (en) | 1990-07-18 |
Family
ID=31461537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17051788U Pending JPH0290812U (en) | 1988-12-29 | 1988-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290812U (en) |
-
1988
- 1988-12-29 JP JP17051788U patent/JPH0290812U/ja active Pending