JPH03100802U - - Google Patents
Info
- Publication number
- JPH03100802U JPH03100802U JP892590U JP892590U JPH03100802U JP H03100802 U JPH03100802 U JP H03100802U JP 892590 U JP892590 U JP 892590U JP 892590 U JP892590 U JP 892590U JP H03100802 U JPH03100802 U JP H03100802U
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- refractive index
- fresnel lens
- lens layer
- curable resin
- 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
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は本考案のフレネルレンズシートを用いた光学
系の説明図、第３図は従来品を用いた光学系の説
明図である。
１……シート基材、２……レンズ層。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an explanatory diagram of an optical system using the Fresnel lens sheet of the present invention, and FIG. 3 is an explanatory diagram of an optical system using a conventional product. 1... Sheet base material, 2... Lens layer.
Claims (1)
の表面に、該基材の屈折率よりも少なくとも０．
０１以上高い屈折率を有し、厚さが２０〜１，０
００μｍのレンズ層が形成されていることを特徴
とするフレネルレンズシート。 ２ レンズ層が紫外線硬化型樹脂からなることを
特徴とする請求項第１項記載のフレネルレンズシ
ート。[Claims for Utility Model Registration] 1. A transparent sheet substrate having a thickness of 50 to 5000 μm has a surface coated with a refractive index of at least 0.
It has a refractive index higher than 0.01 and a thickness of 20 to 1.0
A Fresnel lens sheet characterized by forming a lens layer of 00 μm. 2. The Fresnel lens sheet according to claim 1, wherein the lens layer is made of an ultraviolet curable resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP892590U JPH03100802U (en) | 1990-01-31 | 1990-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP892590U JPH03100802U (en) | 1990-01-31 | 1990-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100802U true JPH03100802U (en) | 1991-10-22 |
Family
ID=31512537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP892590U Pending JPH03100802U (en) | 1990-01-31 | 1990-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100802U (en) |
-
1990
- 1990-01-31 JP JP892590U patent/JPH03100802U/ja active Pending
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