JPH02148111U

JPH02148111U -

Info

Publication number: JPH02148111U
Application number: JP5755189U
Authority: JP
Priority date: 1989-05-19
Filing date: 1989-05-19
Publication date: 1990-12-17
Anticipated expiration: 2004-05-19
Also published as: JPH0736332Y2

Description

[Brief explanation of the drawing]

第１図は本考案の１実施例を示す平面部、第２
図は第１図の−に沿つた断面図、第３図は第
２図の−に沿つた断面図、第４図は第２図の
−に沿つた断面図、第５図は移動機構の調整
時の状態を示す斜視図、第６図は本考案の移動機
構により行われる調整の原理を示す説明図、第７
図は本考案の他の実施例の断面図、第８図はさら
に他の実施例の平面図、第９図は第８図に示す実
施例の断面図、第１０図は第８図の−に沿つ
た断面図、第１１図は従来の移動機構の断面図、
第１２図は第１１図に示す機構の平面図である。１……レンズ枠、２……外枠、３……固定ねじ
、４……一方の内壁、５……他方の内壁、６……
窓、７……周壁部、８……第１の凹部、９……第
２の凹部、１００……レンズ鏡筒、Ｌ_１……レン
ズ、Ｌ_２……レンズ、Ｏ_１……光軸。 Figure 1 shows a plane part showing one embodiment of the present invention;
The figure is a sectional view taken along - in Fig. 1, Fig. 3 is a sectional view taken along - in Fig. 2, Fig. 4 is a sectional view taken along - in Fig. 2, and Fig. 5 is a sectional view taken along - in Fig. 2. FIG. 6 is an explanatory diagram showing the principle of adjustment performed by the moving mechanism of the present invention; FIG. 7 is a perspective view showing the state during adjustment;
The figure is a sectional view of another embodiment of the present invention, FIG. 8 is a plan view of still another embodiment, FIG. 9 is a sectional view of the embodiment shown in FIG. 8, and FIG. 11 is a sectional view of a conventional moving mechanism,
FIG. 12 is a plan view of the mechanism shown in FIG. 11. 1... Lens frame, 2... Outer frame, 3... Fixing screw, 4... One inner wall, 5... Other inner wall, 6...
Window, 7...Surrounding wall portion, 8...First recess, 9...Second recess, 100...Lens barrel, _L1 ...Lens, _L2 ...Lens, _O1 ...Optical axis.

Claims

[Scope of Claim for Utility Model Registration] (1) In a lens barrel consisting of a lens frame that accommodates a lens and is movable in the optical axis direction, and an outer frame that fits and supports the lens frame, the outer frame A window having two inner walls extending parallel to the optical axis is bored along the peripheral wall of the window.
At least one
at least one second recess is provided over a part or the entire outer periphery of the lens frame, and the second recess is exposed from the other inner wall of the window. A lens frame moving mechanism characterized in that the lens frame is arranged to face the first concave portion at the same level. (2) The lens frame moving mechanism according to claim (1), wherein the bottom surface or side surface of the recessed portion forms a V-shape or a U-shape. (3) Claim (1) or (2), wherein a rotation prevention mechanism is provided on the lens frame and the outer frame so that the lens frame does not rotate around the optical axis with respect to the outer frame. The lens frame movement mechanism described.