DE554927C - Illumination mirror arrangement - Google Patents

Illumination mirror arrangement

Info

Publication number
DE554927C
DE554927C DEV25940D DEV0025940D DE554927C DE 554927 C DE554927 C DE 554927C DE V25940 D DEV25940 D DE V25940D DE V0025940 D DEV0025940 D DE V0025940D DE 554927 C DE554927 C DE 554927C
Authority
DE
Germany
Prior art keywords
mirror
mirror arrangement
light source
illumination
light
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
Application number
DEV25940D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILHELM VOLKMANN DR
Original Assignee
WILHELM VOLKMANN DR
Publication date
Priority to DEV25940D priority Critical patent/DE554927C/en
Application granted granted Critical
Publication of DE554927C publication Critical patent/DE554927C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)

Description

Beleuchtungsspiegel-Anordnung Es sind Beleuchtungsspiegel-Anordnungen bekannt zur Zusammendrängung der gesamten, von einer Lichtquelle ausgehenden Strahlung, wobei die Lichtquelle zugleich im Mittelpunkt eines sphärischen und im ersten Brennpunkt eines ellipsoidischen Spiegels sich befindet, deren Ränder sich berühren. Der sphärische Spiegel besitzt eine Scheitelöffnung zum Austritt der Lichtstrahlen.Illuminating mirror arrangements They are illuminating mirror arrangements known for the concentration of all radiation emanating from a light source, whereby the light source is at the same time in the center of a spherical and in the first focal point of an ellipsoidal mirror, the edges of which are touching. The spherical one The mirror has a vertex opening for the light rays to exit.

Erfindungsgemäß wird bei Spiegeln dieser Art die beste Lichtausbeute dadurch erzielt, daß - wie es für ähnliche Spiegelanordnungen an sich bekannt ist - die beiden Spiegel bis nahe an die durch die Lichtquelle gehende senkrechte Ebene heranreichen. Das genaue Ellipsoid kann auf bekannte Weise durch eine Näherungsform, z. B. eine Folge spiegelnder sphärischer Ringe, ersetzt und die Lichtaustrittsöffnung durch ein Filter abgeschlossen werden, das bestimmte Lichtstrahlen absorbiert.According to the invention, the best light yield is achieved with mirrors of this type achieved in that - as is known per se for similar mirror arrangements - the two mirrors close to the vertical plane passing through the light source reach out. The exact ellipsoid can be calculated in a known manner by an approximate form, z. B. a series of reflective spherical rings, replaced and the light exit opening be terminated by a filter that absorbs certain rays of light.

Die Erfindung erstreckt sich auch auf elektrische Glühlampen, deren Glaskolben aus Spiegeln der gekennzeichneten Art zusammen-, gesetzt ist. Wie aus der Zeichnung ersichtlich ist, liegt die Lichtquelle 3 im ersten Brennpunkt/' des iellipsoidalen Spiegels z und zugleich im Mittelpunkt des sphärischen Spiegels i. Der zweite Brennpunkt des Ellipsoides t2 liegt in dem Scheitel des Kugelspiegels, der durchbrochen ist und die Lichtaustrittsöffnung bildet. Der sphärische Hohlspiegel ist eine Halbhohlkugel; der ellipsoidische Spiegel reicht bis nahezu an dessen senkrechten Durchmesser heran.The invention also extends to electric incandescent lamps, whose Glass flask composed of mirrors of the marked type, is set. How out As can be seen in the drawing, the light source 3 is in the first focal point / 'des iellipsoidal mirror z and at the same time in the center of the spherical mirror i. The second focal point of the ellipsoid t2 lies in the vertex of the spherical mirror, which is perforated and forms the light exit opening. The spherical concave mirror is a hemisphere; the ellipsoidal mirror extends almost to its perpendicular Diameter.

Claims (1)

PATENTANSP RÜCHE: i. Beleuchtungsspiegel-Anordnung zur Zusammendrängung der gesamten, von einer Lichtquelle ausgehenden Strahlung, bei der die Lichtquelle im ersten Brennpunkt eines ellipsoidischen Spiegels und zugleich im Mittelpunkt eines sphärischen Spiegels sich befindet, in dessen lichtdurchlassender Scheitelöffnung der zweite Brennpunkt des ellipsoidischen Spiegels liegt, dadurch gekennzeichnet, daß beide Spiegel bis nahezu an die durch die Lichtquelle gehende senkrechte Ebene heranreichen. z. Beleuchtungsspiegel-Anordnung nach Anspruch i, dadurch gekennzeichnet, daß die beiden Spiegel als Glaswandung einer Glühlampe ausgebildet sind. 3. Beleuchtungsspiegel-Anordnung nach Anspruch i oder 2, dadurch gekennzeichnet, daß an Stelle des ellipsoidischen Spiegels eine gleichwertige Fplge von spiegelnden Kugelringen verwendet wird. ¢. Beleuchtungsspiegel-Anordnung nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß die Spiegelanordnung mit einem die Lichtaustrittsöffnung des Kugelspiegels verschließenden, an sich bekannten Filter versehen ist.PATENT APPLICATION: i. Illumination mirror arrangement for crowding the total radiation emanating from a light source for which the light source in the first focal point of an ellipsoidal mirror and at the same time in the center of a spherical mirror is located in the light-transmitting apex opening the second focal point of the ellipsoidal mirror lies, characterized in, that both mirrors almost up to the vertical plane passing through the light source reach out. z. Illumination mirror arrangement according to Claim i, characterized in that that the two mirrors are designed as a glass wall of an incandescent lamp. 3. Illumination mirror arrangement according to claim i or 2, characterized in that instead of the ellipsoidal Mirror an equivalent type of mirror ball rings is used. ¢. Illumination mirror arrangement according to Claims 1, 2 or 3, characterized in that that the mirror arrangement with a closing the light exit opening of the spherical mirror, known filter is provided.
DEV25940D Illumination mirror arrangement Expired DE554927C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV25940D DE554927C (en) Illumination mirror arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV25940D DE554927C (en) Illumination mirror arrangement

Publications (1)

Publication Number Publication Date
DE554927C true DE554927C (en) 1932-07-15

Family

ID=7582299

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV25940D Expired DE554927C (en) Illumination mirror arrangement

Country Status (1)

Country Link
DE (1) DE554927C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461918A1 (en) * 1974-01-11 1975-07-17 Faulhaber Fritz Motor car spot lamp - with narrow angle beam of high intensity and gas discharge light source
EP0456427A2 (en) * 1990-05-08 1991-11-13 Canon Kabushiki Kaisha Polarization converting apparatus and optical instrument having the same
US5677983A (en) * 1995-01-11 1997-10-14 Nauchno-Proizvodstvennaya Firma "Adonis" Light beam heater with light source and reflector having two ellipsoidal sections and a truncated spherical surface there between
US5749642A (en) * 1992-03-18 1998-05-12 Canon Kabushiki Kaisha Illuminating optical system and projector utilizing the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461918A1 (en) * 1974-01-11 1975-07-17 Faulhaber Fritz Motor car spot lamp - with narrow angle beam of high intensity and gas discharge light source
EP0456427A2 (en) * 1990-05-08 1991-11-13 Canon Kabushiki Kaisha Polarization converting apparatus and optical instrument having the same
EP0456427A3 (en) * 1990-05-08 1992-10-14 Canon Kabushiki Kaisha Polarization converting apparatus and optical instrument having the same
US5461500A (en) * 1990-05-08 1995-10-24 Canon Kabushiki Kaisha Polarization converting apparatus and optical instrument having the same
US5749642A (en) * 1992-03-18 1998-05-12 Canon Kabushiki Kaisha Illuminating optical system and projector utilizing the same
US5833341A (en) * 1992-03-18 1998-11-10 Canon Kabushiki Kaisha Illuminating optical system and projector utilizing the same
US5677983A (en) * 1995-01-11 1997-10-14 Nauchno-Proizvodstvennaya Firma "Adonis" Light beam heater with light source and reflector having two ellipsoidal sections and a truncated spherical surface there between

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