JPH0278901U - - Google Patents
Info
- Publication number
- JPH0278901U JPH0278901U JP15824588U JP15824588U JPH0278901U JP H0278901 U JPH0278901 U JP H0278901U JP 15824588 U JP15824588 U JP 15824588U JP 15824588 U JP15824588 U JP 15824588U JP H0278901 U JPH0278901 U JP H0278901U
- Authority
- JP
- Japan
- Prior art keywords
- lenses
- fresnel
- annular groove
- annular grooves
- annular
- 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 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図は本考案によるフレネルレンズ組立体を
構成する二枚のフレネルレンズを接合前の状態に
て示す斜視図である。第２図は第１図の矢印―
の方向から見た断面を幾分拡大して示す断面図
である。第３図は二枚のフレネルレンズが接合さ
れた状態を示す本考案によるフレネルレンズ組立
体の断面図である。
２……フレネルレンズ組立体、４……フレネル
レンズ、６……溝、８，１０……面、１２……周
辺部。
FIG. 1 is a perspective view showing two Fresnel lenses constituting a Fresnel lens assembly according to the present invention before being joined together. Figure 2 is the arrow in Figure 1.
FIG. 2 is a somewhat enlarged cross-sectional view of the cross-section seen from the direction of FIG. FIG. 3 is a sectional view of the Fresnel lens assembly according to the present invention, showing a state in which two Fresnel lenses are joined together. 2...Fresnel lens assembly, 4...Fresnel lens, 6...groove, 8, 10...surface, 12...periphery.
Claims (1)
は光を屈折させる輪帯状溝が刻まれた一方の側の
面と輪帯状溝が刻まれていない他方の側の面とを
有しており、前記二枚のフレネルレンズは互いに
レンズの光軸が整合し前記輪帯状溝が刻まれた面
が互いに向かい合うよう重ね合され且前記輪帯状
溝の部分が外気に対し密閉されるよう周辺部にて
互いに密封接合されていることを特徴とするフレ
ネルレンズ組立体。 It includes two Fresnel lenses, each of which has one surface with an annular groove for refracting light and the other surface with no annular groove, The two Fresnel lenses are stacked so that the optical axes of the lenses are aligned with each other, the surfaces with the annular grooves facing each other, and the peripheral portions are arranged so that the annular grooves are sealed from the outside air. A Fresnel lens assembly characterized in that the lenses are hermetically bonded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15824588U JPH0278901U (en) | 1988-12-05 | 1988-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15824588U JPH0278901U (en) | 1988-12-05 | 1988-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0278901U true JPH0278901U (en) | 1990-06-18 |
Family
ID=31438397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15824588U Pending JPH0278901U (en) | 1988-12-05 | 1988-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0278901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012079677A (en) * | 2010-10-05 | 2012-04-19 | Machvision Inc | Lighting system used for automatic optical detection and its combination with image forming system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS446474Y1 (en) * | 1964-08-01 | 1969-03-10 |
-
1988
- 1988-12-05 JP JP15824588U patent/JPH0278901U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS446474Y1 (en) * | 1964-08-01 | 1969-03-10 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012079677A (en) * | 2010-10-05 | 2012-04-19 | Machvision Inc | Lighting system used for automatic optical detection and its combination with image forming system |