JPS63188797U - - Google Patents
Info
- Publication number
- JPS63188797U JPS63188797U JP7749387U JP7749387U JPS63188797U JP S63188797 U JPS63188797 U JP S63188797U JP 7749387 U JP7749387 U JP 7749387U JP 7749387 U JP7749387 U JP 7749387U JP S63188797 U JPS63188797 U JP S63188797U
- Authority
- JP
- Japan
- Prior art keywords
- partition wall
- light
- emitting element
- receiving element
- light emitting
- 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
- 238000005192 partition Methods 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
第１図は従来例の構成図、第２図は本考案の実
施例を示す構成図である。
１１……発光素子、１２……受光素子、１３…
…液晶からなる隔壁、１４……煙検出空間。
FIG. 1 is a block diagram of a conventional example, and FIG. 2 is a block diagram showing an embodiment of the present invention. 11... Light emitting element, 12... Light receiving element, 13...
...Partition wall made of liquid crystal, 14...Smoke detection space.
Claims (1)
変化する隔壁を配設し、隔壁の透過率を電気的に
変化させ発光素子からの光線が隔壁を透過して受
光素子に投射されるようにしたことを特徴とする
光電式煙感知器。 A partition wall whose light transmittance changes electrically is placed between the light emitting element and the light receiving element, and the light beam from the light emitting element passes through the partition wall and is projected onto the light receiving element by electrically changing the transmittance of the partition wall. A photoelectric smoke detector characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7749387U JPS63188797U (en) | 1987-05-22 | 1987-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7749387U JPS63188797U (en) | 1987-05-22 | 1987-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63188797U true JPS63188797U (en) | 1988-12-05 |
Family
ID=30925551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7749387U Pending JPS63188797U (en) | 1987-05-22 | 1987-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63188797U (en) |
-
1987
- 1987-05-22 JP JP7749387U patent/JPS63188797U/ja active Pending