JPH0425689Y2 - - Google Patents
Info
- Publication number
- JPH0425689Y2 JPH0425689Y2 JP12375886U JP12375886U JPH0425689Y2 JP H0425689 Y2 JPH0425689 Y2 JP H0425689Y2 JP 12375886 U JP12375886 U JP 12375886U JP 12375886 U JP12375886 U JP 12375886U JP H0425689 Y2 JPH0425689 Y2 JP H0425689Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- finder
- objective lens
- magnification
- refractive power
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000004075 alteration Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Lenses (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12375886U JPH0425689Y2 (enrdf_load_stackoverflow) | 1986-08-12 | 1986-08-12 | |
| US07/080,570 US4751539A (en) | 1986-08-12 | 1987-07-31 | Variable power finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12375886U JPH0425689Y2 (enrdf_load_stackoverflow) | 1986-08-12 | 1986-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6330812U JPS6330812U (enrdf_load_stackoverflow) | 1988-02-29 |
| JPH0425689Y2 true JPH0425689Y2 (enrdf_load_stackoverflow) | 1992-06-19 |
Family
ID=31015153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12375886U Expired JPH0425689Y2 (enrdf_load_stackoverflow) | 1986-08-12 | 1986-08-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425689Y2 (enrdf_load_stackoverflow) |
-
1986
- 1986-08-12 JP JP12375886U patent/JPH0425689Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6330812U (enrdf_load_stackoverflow) | 1988-02-29 |
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