DE280893C - - Google Patents
Info
- Publication number
- DE280893C DE280893C DENDAT280893D DE280893DA DE280893C DE 280893 C DE280893 C DE 280893C DE NDAT280893 D DENDAT280893 D DE NDAT280893D DE 280893D A DE280893D A DE 280893DA DE 280893 C DE280893 C DE 280893C
- Authority
- DE
- Germany
- Prior art keywords
- glasses
- eyeglass
- eyepiece
- eye
- field
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 description 6
- 230000003287 optical Effects 0.000 description 4
- 230000004438 eyesight Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036633 rest Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/088—Lens systems mounted to spectacles
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Fernrohr- oder Lupenbrillen mit eingesetztem, festem optischen System, welches nur einen Teil des Brillenblickfeldes ausfüllt, sind bekannt; ferner auch solche, bei welchen das 5 optische System in der Brillenfassung durch ein durchbohrtes Brillenglas gehalten wird. Diese letztere Konstruktion ermöglicht zwar eine optische Korrektion des nicht von dem System verdeckten Brillenblickfeldes. Es ragtTelescopic or magnifying glasses with an inserted, fixed optical system, which only fills part of the field of vision of the glasses are known; also those in which the 5 optical system is held in the spectacle frame by a pierced spectacle lens. This latter construction allows an optical correction of the not of that System of hidden field of vision. It protrudes
ίο jedoch hier der Okularteil des Systems in den Brillenaugenraum hinein, und es besteht die Möglichkeit, daß das Auge gefährdet wird. Ferner kann bei der bekannten Einrichtung Systemokular und Brillenglas nicht an ein und dieselbe Hornhautentfernung angepaßt werden.ίο but here the eyepiece part of the system in the Eyeglass eye space into it, and there is a possibility that the eye will be harmed. Furthermore, with the known device, the system eyepiece and the spectacle lens cannot be connected to one and the same corneal removal can be adjusted.
Diese Nachteile der bisherigen Konstruktionen soll die vorliegende Erfindung beheben und zugleich den für die Fabrikation und den anpassenden Optiker wesentlichen Vorteil bieten, daß durch ein einziges Augenglas sowohl die Anpassung des telezentrischen Systems wie auch die optische Korrektion des von dem System nicht bedeckten Teiles des Brillen-The present invention is intended to remedy these disadvantages of the previous designs and at the same time offer the essential advantage for manufacturing and the matching optician, that through a single eye-glass both the adaptation of the telecentric system as well as the optical correction of the part of the glasses not covered by the system
j blickfeldes für das betreffende ametrope Augej field of view for the ametropic eye in question
j ermöglicht wird.j is enabled.
In der Zeichnung ist ein Ausführungsbeispiel schematisch in Draufsicht dargestellt. Das telezentrische System 0 wird vor dem Augenglas b durch Streben s, welche von der Augenglasfassung ausgehen, in der der Blicklinie entsprechenden Richtung gehalten, und zwar so, daß das Okular des Systems auf dem Brillenglasc aufsitzt. System und Streben können leicht von der Brillenfassung zu lösen sein, wodurch die weitere praktische Möglichkeit gegeben ist, das System nur bei Bedarf und die Brille auch ohne System alsIn the drawing, an embodiment is shown schematically in plan view. The telecentric system 0 is held in front of the eyeglass b by struts s, which extend from the eyeglass frame, in the direction corresponding to the line of sight, in such a way that the eyepiece of the system rests on the eyeglass lens. The system and struts can easily be detached from the spectacle frame, which gives the further practical option of using the system only when required and the glasses as well without the system
j gewöhnliche Brille zu benutzen. Es wird so-j to use ordinary glasses. It will be so-
j mit jedes besondere Zusatzsystem zur Korrektion des telezentrischen Systems überflüssig.j with any special additional system for correcting the telecentric system superfluous.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE280893C true DE280893C (en) |
Family
ID=536677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT280893D Active DE280893C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE280893C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE863423C (en) * | 1951-01-21 | 1953-01-19 | Johannes Bartschat | Spectacle-like holding device for double telescopes |
-
0
- DE DENDAT280893D patent/DE280893C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE863423C (en) * | 1951-01-21 | 1953-01-19 | Johannes Bartschat | Spectacle-like holding device for double telescopes |
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