FR2240461B3 - - Google Patents
Info
- Publication number
- FR2240461B3 FR2240461B3 FR7427425A FR7427425A FR2240461B3 FR 2240461 B3 FR2240461 B3 FR 2240461B3 FR 7427425 A FR7427425 A FR 7427425A FR 7427425 A FR7427425 A FR 7427425A FR 2240461 B3 FR2240461 B3 FR 2240461B3
- Authority
- FR
- France
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/32—Fiducial marks and measuring scales within the optical system
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Telescopes (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3732673 | 1973-08-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2240461A1 FR2240461A1 (en) | 1975-03-07 |
FR2240461B3 true FR2240461B3 (en) | 1977-06-03 |
Family
ID=10395606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7427425A Granted FR2240461A1 (en) | 1973-08-07 | 1974-08-07 | Optical instrument with graticule - graticule on spherical surface concentric with semireflecting concave surface |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5050943A (en) |
DE (1) | DE2436819A1 (en) |
FR (1) | FR2240461A1 (en) |
NL (1) | NL7410452A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751382Y2 (en) * | 1976-05-12 | 1982-11-09 | ||
JP2004085816A (en) | 2002-08-26 | 2004-03-18 | Pentax Corp | Observation device |
-
1974
- 1974-07-31 DE DE19742436819 patent/DE2436819A1/en active Pending
- 1974-08-05 NL NL7410452A patent/NL7410452A/en unknown
- 1974-08-07 JP JP8995274A patent/JPS5050943A/ja active Pending
- 1974-08-07 FR FR7427425A patent/FR2240461A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5050943A (en) | 1975-05-07 |
NL7410452A (en) | 1975-02-11 |
DE2436819A1 (en) | 1975-02-27 |
FR2240461A1 (en) | 1975-03-07 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |