GB892008A - Protecting arrangement for optical instruments - Google Patents
Protecting arrangement for optical instrumentsInfo
- Publication number
- GB892008A GB892008A GB42179/60A GB4217960A GB892008A GB 892008 A GB892008 A GB 892008A GB 42179/60 A GB42179/60 A GB 42179/60A GB 4217960 A GB4217960 A GB 4217960A GB 892008 A GB892008 A GB 892008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viewing
- observer
- eye
- pusher element
- pusher
- 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
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
892,008. Viewing instruments; protective covers. EVEN, G. F. M. Dec. 7, 1960 [Dec. 11, 1959], No. 42179/60. Class 97(1). An arrangement for use in combination with an optical viewing instrument comprises a cover member mounted for displacement between a normal position where in the member protectively overlies the objective end of the instrument and a viewing position where in the member is moved aside to permit unimpeded viewing, means biasing the member to the normal position and means connected to the member and extending generally towards the eye piece end of the instrument and including a pusher element positioned and arranged for engagement by part of an observer's head or the observer's eye nearing the eye piece, for displacing said member to the viewing position. In the embodiment shown, a telescope 1 is mounted by a bracket 3 for viewing through an aperture 5 in an armour plated wall 2. An armour plated cover member 6 is connected on the one hand by way of a flexible element 7 to the wall 2 and on the other hand by way of a swivel 11 to a link 12 carrying at an end a pusher element 13 engageable with an observer's forehead and being biased by the weight of said member 6 and by a spring 16 towards a position corresponding to the closed or normal position of said member 6. The viewing position of the member 6 and the corresponding position of pusher 13 are shown in chain-line outline. In modifications, flexible element 7 may be replaced by a rigid pivot arm or arms, the spring 16 may be omitted, means for counter balancing some or all of the weight of the member 6 may be provided, the pusher element 13 may be arranged to engage other parts of the observer's head-for example his chin-or the pusher element may be constructed in the form of an eye cup for the eye piece 18.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR892008X | 1959-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB892008A true GB892008A (en) | 1962-03-21 |
Family
ID=9389399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB42179/60A Expired GB892008A (en) | 1959-12-11 | 1960-12-07 | Protecting arrangement for optical instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB892008A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4601540A (en) * | 1982-07-05 | 1986-07-22 | Eltro Gmbh | Method and apparatus for the turning on and off of a signal in optical or optronic devices |
EP1717629A1 (en) * | 2005-04-25 | 2006-11-02 | Olympus Corporation | Objective lens protector and objective lens unit |
-
1960
- 1960-12-07 GB GB42179/60A patent/GB892008A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4601540A (en) * | 1982-07-05 | 1986-07-22 | Eltro Gmbh | Method and apparatus for the turning on and off of a signal in optical or optronic devices |
EP1717629A1 (en) * | 2005-04-25 | 2006-11-02 | Olympus Corporation | Objective lens protector and objective lens unit |
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