JPS63109342U - - Google Patents
Info
- Publication number
- JPS63109342U JPS63109342U JP20131286U JP20131286U JPS63109342U JP S63109342 U JPS63109342 U JP S63109342U JP 20131286 U JP20131286 U JP 20131286U JP 20131286 U JP20131286 U JP 20131286U JP S63109342 U JPS63109342 U JP S63109342U
- Authority
- JP
- Japan
- Prior art keywords
- optical path
- receiving element
- light source
- light receiving
- detection device
- 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 5
- 238000001514 detection method Methods 0.000 claims description 4
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案の一実施例を示すテープ始終端
検出装置の要部断面図、第２図は従来のテープ始
終端検出装置を示す概略平面図、第３図は同装置
を示す正面図、第４図は同装置の検知素子部を示
す断面図である。
１０……光路、２０……受光素子、２１……光
路ガイド部、２２……光源、２３……切欠き部、
２４……窓部。
Fig. 1 is a sectional view of the main parts of a tape start/end detection device showing an embodiment of the present invention, Fig. 2 is a schematic plan view showing a conventional tape start/end detection device, and Fig. 3 is a front view of the same device. , FIG. 4 is a sectional view showing the sensing element portion of the device. DESCRIPTION OF SYMBOLS 10... Optical path, 20... Light receiving element, 21... Optical path guide part, 22... Light source, 23... Notch part,
24...Window section.
Claims (1)
記筐体に配された光を発する光源と、前記光源に
応答すべく配置された受光素子とを備え、テープ
の始終端を検出する検出装置であつて、前記受光
素子の近傍で前記光源から前記受光素子への光路
を内壁部が包囲する光路ガイド部と、前記窓部と
対向する前記光路ガイド部の内壁部に形成された
切欠き部とを備えてなることを特徴とするテープ
始終端検出装置。 A detection device that detects the beginning and end of a tape, comprising a housing having a window portion that allows the inside to be visually viewed, a light source disposed in the housing that emits light, and a light receiving element disposed to respond to the light source. The device includes: an optical path guide portion in which an inner wall portion surrounds an optical path from the light source to the light receiving element near the light receiving element; and a notch formed in the inner wall portion of the optical path guide portion facing the window portion. What is claimed is: 1. A tape start/end detection device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20131286U JPS63109342U (en) | 1986-12-29 | 1986-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20131286U JPS63109342U (en) | 1986-12-29 | 1986-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63109342U true JPS63109342U (en) | 1988-07-14 |
Family
ID=31164644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20131286U Pending JPS63109342U (en) | 1986-12-29 | 1986-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63109342U (en) |
-
1986
- 1986-12-29 JP JP20131286U patent/JPS63109342U/ja active Pending