DE1954312C3 - Slit lamp - Google Patents
Slit lampInfo
- Publication number
- DE1954312C3 DE1954312C3 DE1954312A DE1954312A DE1954312C3 DE 1954312 C3 DE1954312 C3 DE 1954312C3 DE 1954312 A DE1954312 A DE 1954312A DE 1954312 A DE1954312 A DE 1954312A DE 1954312 C3 DE1954312 C3 DE 1954312C3
- Authority
- DE
- Germany
- Prior art keywords
- lens
- negative
- slit
- telecondenser
- lamp
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/13—Ophthalmic microscopes
- A61B3/135—Slit-lamp microscopes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
- Microscoopes, Condenser (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
zur genauen Beobachtung der beleuchteten Augen- Augenpartie abgebildet.for precise observation of the illuminated area around the eyes.
partie notwendig, daß die Spaltleuchte eine möglichst 30 In den Figuren sind zwei Ausfunrungsiormen derpartie necessary that the slit light as possible 30 In the figures are two Ausfunrungsiormen the
hohe lichttechnische Leistung erbringt. erfindungsgemäßen Spaltleuchte dargestellt Es zeigtprovides high lighting performance. Slit lamp according to the invention shown It shows
Dafür wurden bis jetzt Glühlampen von 25 bis 30 F i g. 1 eine Beleuchtungseinrichtung fur Spalt-Watt verwendet. Die Glühlampen dieser Stärke wei- leuchten mit ausgespaltener Negativhnse des IeIesen jedoch schon eine erhebliche Wärmeentwicklung kondensors,For this purpose, incandescent lamps from 25 to 30 F i g. 1 a lighting device for split watts used. The incandescent lamps of this strength shine with a split-out negative nose however, a considerable amount of heat generated by the condenser,
auf, was sich besonders auf die benachbarte verstell- 35 Fig. 2 eine Beleuchtungseinrichtung tür Spaltbare Spaltgruppe ungünstig auswirkt. Gleichzeitig ist leuchten mit einteiliger Negativlinse des 1 elekondeneine verhältnismäßig geringe Baulänge der Beleuch- sors.on what is particularly relevant to the adjacent adjustable 35 Fig. 2 a lighting device for split-off Cleavage group has an unfavorable effect. At the same time, there is light with the one-piece negative lens of the 1 elekondeneine relatively short overall length of the illuminator.
tungsoptik erwünscht, um die Handlichkeit von Einer Glühlampe 1 ist em 1 elekondensor 2 zu-optics is desirable in order to increase the handiness of an incandescent lamp 1 in an electric condenser 2.
Spaltleuchten zu verbessern. geordnet, welcher zwischen seinen positiven GliedernTo improve slit lights. ordered, which between its positive members
Der vorliegenden Erfindung lag die Aufgabe zu- 40 la und seinem Negativglied lh ?ine Spaltgruppe 3The present invention was the object of 40 la and its negative element l h? Ine gap Group 3
gründe, eine Spaltleuchte mit hoher Lichtausbeute enthält (Fig. 2). Das Negaüvglied Ib kann jedochreasons, contains a slit lamp with high luminous efficiency (Fig. 2). The negative element Ib can, however
bei geringerer Wärmeentwicklung und bei gleichzeiti- auch in zwei Einzeiligen 2c, Zb autgespalten seinwith less heat development and at the same time also be split into two single lines 2c, Zb
ger gering?- Baulänge der Beleuchtungseinrichtung 'Fig. 1), wobei die beiden negativen Einzeiligenger low? - Overall length of the lighting device 'Fig. 1), the two negative single lines
zu schaffen. lc, Id zn beiden Seiten der Spaltgruppe3 angeord-to accomplish. lc, Id zn both sides of cleavage group3
Diese Aufgabe wird erfindungsgemäß durch die im 45 net sind. Das Spaltbild 3 wird durch ein nachgeschal-According to the invention, this object is achieved by the im 45 net. The gap 3 is made by a downstream
Kennzeichen von Anspruch 1 angegebenen Mittel ge- tetes Objektiv 4 und em Umlenkpusma5 in das zuCharacteristic of claim 1 specified means put lens 4 and em Umlenkpusma5 in the to
löst. Es wird also ein Telekondensor verwendet, des- untersuchende Auge geworfen. Die im Strahlengangsolves. A telecondenser is used and the examining eye is thrown. The one in the beam path
sen bildseitige ziemlich starke Negativlinse in einem hinter der Spaltgruppe 3 angeordnete negative Linsesen rather strong negative lens on the image side in a negative lens arranged behind the slit group 3
Ausführungsbeispiel in zwei Linsen aufgespaltet ist, Ib bzw. Id wirkt gleichzeitig als Glied des übjek-Embodiment is split into two lenses, Ib or Id acts at the same time as a member of the überjek-
wovon die erste vor der Spaltgruppe und die zweite 50 tivs4. Dies bewirkt eine besonders raumsparendeof which the first in front of the split group and the second 50 tivs4. This causes a particularly space-saving
hinter der Spaltgruppe im Strahlengang angeordnet Anordnung des in seiner Wirkung zum Teleobjektivbehind the slit group in the beam path arrangement of the effect of the telephoto lens
ist. Die Negativlinse hinter der Spaltgruppe wirkt da- gewordenen Objektivs 4.is. The negative lens behind the slit group acts as an objective 4.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (3)
net, daß der Glühlampe (1) ein Telekondensor 5 geschalteten Objektivs, welches damit
(2) nachgeschaltet ist, welcher aus mehreren posi- kung zum Teleobjektiv Se*°™«V"-1. Slit lamp, thereby gekeonzeich- arranged ^ acts ^^^
net that the incandescent lamp (1) has a telecondenser 5 switched lens, which with it
(2) is connected downstream, which consists of several posi- tions for the telephoto lens S e * ° ™ «V" -
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1954312A DE1954312C3 (en) | 1969-10-29 | 1969-10-29 | Slit lamp |
CH1340670A CH513636A (en) | 1969-10-29 | 1970-09-08 | Slit lamp |
FR7036352A FR2099018A5 (en) | 1969-10-29 | 1970-10-08 | |
US00079547A US3735125A (en) | 1969-10-29 | 1970-10-09 | Slit lamp |
GB4913570A GB1324439A (en) | 1969-10-29 | 1970-10-15 | Slit-lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1954312A DE1954312C3 (en) | 1969-10-29 | 1969-10-29 | Slit lamp |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1954312A1 DE1954312A1 (en) | 1971-05-06 |
DE1954312B2 DE1954312B2 (en) | 1973-10-18 |
DE1954312C3 true DE1954312C3 (en) | 1974-05-16 |
Family
ID=5749492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1954312A Expired DE1954312C3 (en) | 1969-10-29 | 1969-10-29 | Slit lamp |
Country Status (5)
Country | Link |
---|---|
US (1) | US3735125A (en) |
CH (1) | CH513636A (en) |
DE (1) | DE1954312C3 (en) |
FR (1) | FR2099018A5 (en) |
GB (1) | GB1324439A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4762409A (en) * | 1986-04-07 | 1988-08-09 | Swannie Mark K | Light bulb unit for a slit lamp |
US4739456A (en) * | 1986-12-12 | 1988-04-19 | Little William D | High intensity pattern/follow spot projector |
GB0324526D0 (en) * | 2003-10-21 | 2003-11-26 | Armour Roger H | Ophthalmoscope |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1680663A (en) * | 1923-05-15 | 1928-08-14 | Ben J Campbell | Dynamic optometer and eye-testing apparatus |
US3405994A (en) * | 1964-09-14 | 1968-10-15 | Bausch & Lomb | Variable incidence type slit lamp mechanism |
US3407019A (en) * | 1964-09-23 | 1968-10-22 | American Optical Corp | Slit lamp |
CH477007A (en) * | 1967-10-27 | 1969-08-15 | Zeiss Carl Fa | Slit lamp device with variable vertical angle of incidence |
US3586424A (en) * | 1968-09-13 | 1971-06-22 | American Optical Corp | Monocular indirect ophthalmoscope |
-
1969
- 1969-10-29 DE DE1954312A patent/DE1954312C3/en not_active Expired
-
1970
- 1970-09-08 CH CH1340670A patent/CH513636A/en not_active IP Right Cessation
- 1970-10-08 FR FR7036352A patent/FR2099018A5/fr not_active Expired
- 1970-10-09 US US00079547A patent/US3735125A/en not_active Expired - Lifetime
- 1970-10-15 GB GB4913570A patent/GB1324439A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH513636A (en) | 1971-10-15 |
DE1954312B2 (en) | 1973-10-18 |
FR2099018A5 (en) | 1972-03-10 |
DE1954312A1 (en) | 1971-05-06 |
GB1324439A (en) | 1973-07-25 |
US3735125A (en) | 1973-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |