GB348614A - Improvements relating to field illuminating devices for eye pieces - Google Patents
Improvements relating to field illuminating devices for eye piecesInfo
- Publication number
- GB348614A GB348614A GB33683/29A GB3368329A GB348614A GB 348614 A GB348614 A GB 348614A GB 33683/29 A GB33683/29 A GB 33683/29A GB 3368329 A GB3368329 A GB 3368329A GB 348614 A GB348614 A GB 348614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- improvements relating
- illuminating devices
- eye pieces
- field illuminating
- nov
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/02—Eyepieces; Magnifying glasses with means for illuminating object viewed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eye Examination Apparatus (AREA)
Abstract
348,614. Eyepieces; magnifiers. RESPLENDINO, F., 3, Via Principe, Amedeo, Spezia, Italy. Nov. 5, 1929, No. 33683. Convention date, Nov. 5, 1928. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] The inner wall of a magnifying eyepiece is inclined at an angle of 45‹ and coated with luminous paint so that the object in the plane 1, 2, to be examined by the lens B is illuminated. An extension F is fitted to serve as a holder for the device, Maps, photographs &c. may by this means be examined in the dark. Protecting glasses are fitted to each end by screwed caps.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT348614X | 1928-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB348614A true GB348614A (en) | 1931-05-05 |
Family
ID=11240446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33683/29A Expired GB348614A (en) | 1928-11-05 | 1929-11-05 | Improvements relating to field illuminating devices for eye pieces |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB348614A (en) |
-
1929
- 1929-11-05 GB GB33683/29A patent/GB348614A/en not_active Expired
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