GB720601A - Improvements in or relating to optical instruments - Google Patents
Improvements in or relating to optical instrumentsInfo
- Publication number
- GB720601A GB720601A GB444752A GB444752A GB720601A GB 720601 A GB720601 A GB 720601A GB 444752 A GB444752 A GB 444752A GB 444752 A GB444752 A GB 444752A GB 720601 A GB720601 A GB 720601A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- holders
- instrument
- lens
- pivoted
- 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
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
- G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Endoscopes (AREA)
Abstract
720,601. Optical apparatus. MORRIS, L., and SULIMAN, M. C. April 22, 1953 [Feb. 20, 1952], No. 4447/52. Class 97 (1). [Also in Group VI] An optical instrument comprises a central supporting bar 10, a lens holder pivoted at opposite sides of each end of the bar about parallel axes perpendicular to the length of the bar, the holders 11, 12 at one end each carrying a concave lens and the holders 21, 22 at the other end each carrying a convex lens, and the concave and convex lens at each side of the bar when pivoted to lie at right angles to it having a common optical axis parallel to the bar. Preferably the lens holders have spindles 15, Fig. 6, which are rotatable in spring lugs 17 on the bar, projections 19a on the holders engaging in grooves 19b on the bar to locate the holders parallel or perpendicular to the bar. As shown, the instrument forms a collapsible pair of opera glasses and may be focused by sliding the tongue 27 on the forward part 25 of the telescopic bar 10 within the cavity in the rear part 26 of the bar, a pair of slots 28 in the walls of which accommodate a pin 30 extending from the tongue and serving also as an index for a focusing scale (not shown). By providing means for supporting in front of the convex lenses a stereo-pair of pictures the instrument may be used as a stereoscope. With a single convex lens holder pivoted to lie parallel to and beyond the bar the instrument serves as a simple magnifying glass while if both convex lens holders are so extended a more powerful magnifier is obtained. With the lens holder 21 pivoted down against the bar and covering a plane mirror 32 in the forward part 25 of the bar, the instrument serves as a laryngoscope. A compass may be carried opposite the mirror. The bar which together with the lens holders may be made of a synthetic resin is provided with a cut-away at 31 to accommodate the bridge of the nose, and the instrument may be provided with a pince-nez arrangement or a lorgnette handle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB444752A GB720601A (en) | 1952-02-20 | 1952-02-20 | Improvements in or relating to optical instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB444752A GB720601A (en) | 1952-02-20 | 1952-02-20 | Improvements in or relating to optical instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB720601A true GB720601A (en) | 1954-12-22 |
Family
ID=9777352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB444752A Expired GB720601A (en) | 1952-02-20 | 1952-02-20 | Improvements in or relating to optical instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB720601A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51123847U (en) * | 1975-04-03 | 1976-10-07 | ||
AT15117U1 (en) * | 2015-05-19 | 2017-01-15 | Swarovski-Optik Kg | Connecting element for a far-optical device |
-
1952
- 1952-02-20 GB GB444752A patent/GB720601A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51123847U (en) * | 1975-04-03 | 1976-10-07 | ||
AT15117U1 (en) * | 2015-05-19 | 2017-01-15 | Swarovski-Optik Kg | Connecting element for a far-optical device |
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