JPS62123853U - - Google Patents
Info
- Publication number
- JPS62123853U JPS62123853U JP1294986U JP1294986U JPS62123853U JP S62123853 U JPS62123853 U JP S62123853U JP 1294986 U JP1294986 U JP 1294986U JP 1294986 U JP1294986 U JP 1294986U JP S62123853 U JPS62123853 U JP S62123853U
- Authority
- JP
- Japan
- Prior art keywords
- lens holding
- shaft
- lens
- moving member
- holding shaft
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
第１図は本考案に係るレンズ保持装置の一実施
例を示す断面図、第２図は要部の一部破断平面図
、第３図は第１図−線断面図、第４図および
第５図はそれぞれ第３図−線および−線
断面図、第６図は駆動モータの制御ブロツク図で
ある。
２……ハウジング、２ａ……レンズ押え軸カバ
ー、３……レンズ、４……レンズ保持軸、５……
レンズ押え軸、２４……移動部材、２５……ばね
、２６……おねじ、２７……キー溝、２８……キ
ー、３０……回転伝達部材、３６……駆動モータ
、４５……検出装置、４６……フオトカプラ、４
７……センサ板、４９……ストツプセンサ板。
Fig. 1 is a sectional view showing one embodiment of the lens holding device according to the present invention, Fig. 2 is a partially cutaway plan view of the main part, Fig. 3 is a sectional view taken along the line of Fig. 1, Fig. 4 and 5 is a cross-sectional view taken along the line 3 and 3, respectively, and FIG. 6 is a control block diagram of the drive motor. 2...Housing, 2a...Lens holding shaft cover, 3...Lens, 4...Lens holding shaft, 5...
Lens holding shaft, 24...Moving member, 25...Spring, 26...Male thread, 27...Keyway, 28...Key, 30...Rotation transmission member, 36...Drive motor, 45...Detection device , 46...Photocoupler, 4
7...sensor plate, 49...stop sensor plate.
Claims (1)
る回転自在なレンズ保持軸および該レンズ保持軸
に対して接近離間可能でかつ回転自在なレンズ押
え軸と、外周面にねじが形成され前記レンズ押え
軸に軸方向移動自在にかつ回転不能に嵌装された
移動部材と、この移動部材と前記レンズ押え軸と
の間に介在され該レンズ押え軸をレンズ保持軸方
向に付勢する弾性体と、回転自在で軸方向の移動
を規制防止され内周面に前記移動部材のおねじ部
が螺合するねじが形成された回転伝達部材と、こ
の回転伝達部材を回転させる駆動モータと、前記
レンズ押え軸と、該押え軸を収容するレンズ押え
軸カバーおよび前記移動部材の端部に配設されて
前記レンズ押え軸と前記移動部材と前記押え軸カ
バーとの相対的移動を検出し、さらに前記駆動モ
ータを前記移動部材がレンズ保持軸方向に移動す
る方向へ一定量回転させるための検出装置とを備
えたことを特徴とするレンズ保持装置。 A rotatable lens holding shaft disposed on the same axis and working together to hold the lens; a lens holding shaft that can move toward and away from the lens holding shaft and is rotatable; a moving member fitted to the lens holding shaft so as to be movable in the axial direction but not rotatable; and an elastic body interposed between the moving member and the lens holding shaft and biasing the lens holding shaft in the direction of the lens holding shaft. a rotation transmission member that is rotatable and whose axial movement is prevented from being regulated and has a screw formed on its inner circumferential surface into which a male threaded portion of the moving member is screwed; a drive motor that rotates the rotation transmission member; a lens presser shaft, a lens presser shaft cover that accommodates the presser shaft, and an end portion of the moving member to detect relative movement between the lens presser shaft, the moving member, and the presser shaft cover; A lens holding device comprising: a detection device for rotating the drive motor by a certain amount in a direction in which the moving member moves in a lens holding axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012949U JPH0611754Y2 (en) | 1986-01-31 | 1986-01-31 | Lens holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986012949U JPH0611754Y2 (en) | 1986-01-31 | 1986-01-31 | Lens holding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62123853U true JPS62123853U (en) | 1987-08-06 |
| JPH0611754Y2 JPH0611754Y2 (en) | 1994-03-30 |
Family
ID=30801555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986012949U Expired - Lifetime JPH0611754Y2 (en) | 1986-01-31 | 1986-01-31 | Lens holding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611754Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014008581A (en) * | 2012-06-29 | 2014-01-20 | Nidek Co Ltd | Spectacle lens machining device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131345U (en) * | 1984-02-13 | 1985-09-03 | 株式会社トプコン | Tamazuri machine lens chucking device |
-
1986
- 1986-01-31 JP JP1986012949U patent/JPH0611754Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131345U (en) * | 1984-02-13 | 1985-09-03 | 株式会社トプコン | Tamazuri machine lens chucking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014008581A (en) * | 2012-06-29 | 2014-01-20 | Nidek Co Ltd | Spectacle lens machining device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0611754Y2 (en) | 1994-03-30 |