JPS63101902U - - Google Patents
Info
- Publication number
- JPS63101902U JPS63101902U JP20334786U JP20334786U JPS63101902U JP S63101902 U JPS63101902 U JP S63101902U JP 20334786 U JP20334786 U JP 20334786U JP 20334786 U JP20334786 U JP 20334786U JP S63101902 U JPS63101902 U JP S63101902U
- Authority
- JP
- Japan
- Prior art keywords
- light
- fresnel lens
- condensing
- refractive surfaces
- optical axis
- 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
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Projection Apparatus (AREA)
- Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20334786U JPS63101902U (xx) | 1986-12-24 | 1986-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20334786U JPS63101902U (xx) | 1986-12-24 | 1986-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101902U true JPS63101902U (xx) | 1988-07-02 |
Family
ID=31168589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20334786U Pending JPS63101902U (xx) | 1986-12-24 | 1986-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101902U (xx) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013092717A (ja) * | 2011-10-27 | 2013-05-16 | Nitto Kogaku Kk | フレネルレンズおよび照明装置 |
| JP2017037325A (ja) * | 2016-10-04 | 2017-02-16 | 日東光学株式会社 | フレネルレンズおよび照明装置 |
| JP2017040789A (ja) * | 2015-08-20 | 2017-02-23 | 株式会社タムロン | 光学素子、光学系及び光学装置 |
-
1986
- 1986-12-24 JP JP20334786U patent/JPS63101902U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013092717A (ja) * | 2011-10-27 | 2013-05-16 | Nitto Kogaku Kk | フレネルレンズおよび照明装置 |
| JP2017040789A (ja) * | 2015-08-20 | 2017-02-23 | 株式会社タムロン | 光学素子、光学系及び光学装置 |
| JP2017037325A (ja) * | 2016-10-04 | 2017-02-16 | 日東光学株式会社 | フレネルレンズおよび照明装置 |