JPS5557802A - Light shield type sheet - Google Patents
Light shield type sheetInfo
- Publication number
- JPS5557802A JPS5557802A JP13127778A JP13127778A JPS5557802A JP S5557802 A JPS5557802 A JP S5557802A JP 13127778 A JP13127778 A JP 13127778A JP 13127778 A JP13127778 A JP 13127778A JP S5557802 A JPS5557802 A JP S5557802A
- Authority
- JP
- Japan
- Prior art keywords
- pores
- sheet
- distances
- outside
- circumferential edges
- 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
- 239000011148 porous material Substances 0.000 abstract 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 2
- 229920002554 vinyl polymer Polymers 0.000 abstract 2
- 230000000414 obstructive effect Effects 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
PURPOSE: To obtain the light-shield type sheet which permits see-through of the outside from the dark color side (inner side) by providing circular pores of 0.8W2mm in pore diameter orderly vertically and horizontally to a sheet, at least one surface whereof is a dark color, in such a manner that the distances between the circumferential edges of the adjoining pores become 0.8W2mm.
CONSTITUTION: A laminated thin film sheet or the like comprising sandwiching the paper having been printed on with patterns between, e.g., a blade color vinyl sheet and transparent vinyl sheet is provided with circular pores of 0.8W2mm orderly vertically and horizontally in such a manner that the distances between the circumferential edges of the adjoining pores become 0.8W2mm. By taking the sizes within this range, the non-pored portions do not become obstructive to the eyes when the outside is viewed from the inner side and the see-through from the outside is made infeasible, thus this is effective for shielding of strong sunlight such as of vehicles and buildings. If the pores are made to elliptical shapes of 0.8W2mm in the shorter of the pore diameters and 1W3mm in the longer ones and the distances between the circumferential edges 0.8W2mm, then the small pores appear circular when the light shielding angles are around 30W60° and this is good for shading of the evening sun or the like.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13127778A JPS5557802A (en) | 1978-10-25 | 1978-10-25 | Light shield type sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13127778A JPS5557802A (en) | 1978-10-25 | 1978-10-25 | Light shield type sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5557802A true JPS5557802A (en) | 1980-04-30 |
Family
ID=15054167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13127778A Pending JPS5557802A (en) | 1978-10-25 | 1978-10-25 | Light shield type sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5557802A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01101879U (en) * | 1987-12-28 | 1989-07-10 | ||
| JPH029185U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH029183U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH0212827U (en) * | 1988-07-11 | 1990-01-26 | ||
| JPH0572026U (en) * | 1992-03-02 | 1993-09-28 | アルプス電気株式会社 | Illuminated switch device |
-
1978
- 1978-10-25 JP JP13127778A patent/JPS5557802A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01101879U (en) * | 1987-12-28 | 1989-07-10 | ||
| JPH029185U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH029183U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH0212827U (en) * | 1988-07-11 | 1990-01-26 | ||
| JPH0572026U (en) * | 1992-03-02 | 1993-09-28 | アルプス電気株式会社 | Illuminated switch device |
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