DE344335C - - Google Patents
Info
- Publication number
- DE344335C DE344335C DENDAT344335D DE344335DA DE344335C DE 344335 C DE344335 C DE 344335C DE NDAT344335 D DENDAT344335 D DE NDAT344335D DE 344335D A DE344335D A DE 344335DA DE 344335 C DE344335 C DE 344335C
- Authority
- DE
- Germany
- Prior art keywords
- spherometer
- thickness gauge
- micrometer
- rings
- piston
- 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
- 230000036633 rest Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
Spbäromefier. Die Erfindung bezieht sich auf Sphärometer, die zugleich als Dickenmesser verwendet werden können. Während die bekannten Instrumente dieser letzteren Art eine diesem Zweck entsprechende, besondere Bauart aufweisen, soll .eine Einrichtung getroffen werden, die sich bei Bedarf an einem gebräuchlichen Sphärometer leicht anbringen läßt. Das Kennzeichen der Erfindung besteht darin, daß ein abnehmbarer Aufsatz vorgesehen ist, der statt der bekannten auswechselbaren Normalringe bei Benutzung als Sphärometer mit diesem in _ Verbindung gebracht wird, um es sofort als Dickenmesser verwenden zu können. Gleichzeitig wird der irri Spbärometer vorgesehene Meßkolben mit einer Dämpfvorrichtung ausgerüstet, damit eine Zertrümmerung der feinen Linsen durch den Kolben ausgeschlossen ist.Spbäromefier. The invention relates to spherometers that at the same time can be used as a thickness gauge. While the well-known instruments of this the latter type should have a special design corresponding to this purpose .a facility must be made which, if necessary, can be adapted to a customary Can easily attach spherometer. The characteristic of the invention is that that a removable attachment is provided instead of the known replaceable Normal rings are associated with this when used as a spherometer, to be able to use it immediately as a thickness gauge. At the same time the irri Spbärometer provided volumetric flask equipped with a damping device so that a shattering of the fine lenses is excluded by the piston.
Auf der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiel veranschaulicht.The subject of the invention is shown in one embodiment in the drawing illustrated.
In dem allseitig geschlossenen Gehäuse a ist der Meßkolben b in einer Hülse c gelagert. i Durch ein über Rollen e geführtes Gewicht d wird er bis in seine höchste Stellung getrieben. Damit diese Bewegung langsam und gedämpft erfolgt, ruht der Meßkolben auf einem Hohlkolben g, der in einem Zylinder h spielt.In the housing a, which is closed on all sides, the measuring piston b is mounted in a sleeve c. i It is driven to its highest position by a weight d guided over rollers e. So that this movement is slow and dampened, the measuring piston rests on a hollow piston g which plays in a cylinder h.
Auf dem Meßkolben bist eine Teilung i angebracht, die vom Mikrometermikroskop k abgelesen wird. Die Beleuchtung der Teilung erfolgt mittelbar von einem Spiegelur aus, der vor einem Fenster st gegenüber dem Mikrometermikroskop verstellbar angeordnet ist. A graduation i , which can be read off by the microscope k, is attached to the volumetric flask b. The graduation is illuminated indirectly from a mirror, which is arranged in front of a window so that it can be adjusted relative to the micrometer microscope.
Wird das Sphärometer für sich gebraucht, so trägt es die auswechselbaren Normalringe o, deren Durchmesser der Größe der zu messenden Linsen entspricht. Soll es indessen auch als Kontrolldickenmesser Verwendung finden, so wind statt der Normalringe o ein Halter P aufgesetzt, dessen Säule q die Meßschraube r und einen federgelagerten Tisch s trägt. Auf diesem ruht, vorteilhaft auf drei Kugeln, eine Kaliberscheibe- t, auf die die zu prüfende- Linse u gelegt wird..If the spherometer is used by itself, it carries the exchangeable ones Normal rings o, the diameter of which corresponds to the size of the lenses to be measured. Intended to However, it can also be used as a control thickness gauge, so instead of the standard rings o a holder P put on, the column q of which has the micrometer r and a spring-loaded one Table s carries. A caliber washer rests on this, advantageously on three balls. t on which the lens to be tested u is placed ..
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE344335C true DE344335C (en) |
Family
ID=573215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT344335D Active DE344335C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE344335C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2449842A (en) * | 1943-10-06 | 1948-09-21 | Bryant Grinder Corp | Work gauge |
DE1222273B (en) * | 1959-05-11 | 1966-08-04 | Philips Nv | Device for measuring the thickness of objects by means of a measuring pin that can be moved in the longitudinal direction |
US20050065411A1 (en) * | 2003-09-15 | 2005-03-24 | Baldwin Blair F. | Tongue depressing device |
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0
- DE DENDAT344335D patent/DE344335C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2449842A (en) * | 1943-10-06 | 1948-09-21 | Bryant Grinder Corp | Work gauge |
DE1222273B (en) * | 1959-05-11 | 1966-08-04 | Philips Nv | Device for measuring the thickness of objects by means of a measuring pin that can be moved in the longitudinal direction |
US20050065411A1 (en) * | 2003-09-15 | 2005-03-24 | Baldwin Blair F. | Tongue depressing device |
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