EP1529228A2 - Dispositif optique grossissant - Google Patents

Dispositif optique grossissant

Info

Publication number
EP1529228A2
EP1529228A2 EP03794773A EP03794773A EP1529228A2 EP 1529228 A2 EP1529228 A2 EP 1529228A2 EP 03794773 A EP03794773 A EP 03794773A EP 03794773 A EP03794773 A EP 03794773A EP 1529228 A2 EP1529228 A2 EP 1529228A2
Authority
EP
European Patent Office
Prior art keywords
led
diffuser
optical device
luminous
luminous element
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.)
Withdrawn
Application number
EP03794773A
Other languages
German (de)
English (en)
Inventor
Alfred SCHÜTTINGER
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.)
A Schweizer GmbH Optische Fabrik
Original Assignee
A Schweizer GmbH Optische Fabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by A Schweizer GmbH Optische Fabrik filed Critical A Schweizer GmbH Optische Fabrik
Publication of EP1529228A2 publication Critical patent/EP1529228A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/02—Eyepieces; Magnifying glasses with means for illuminating object viewed

Definitions

  • the invention relates to an enlarging optical device, in particular in the form of a hand-held magnifier, standing magnifier, a microscope or the like, at least one illumination element being provided for at least partial illumination of the region visible through the enlarging optical device.
  • the lighting device should include at least one LED, the light of which diffusely falls on the visible area.
  • diffuse LEDs are known as prior art, the glass body of which consists entirely of diffuse material, which means that the luminosity of such LEDs is relatively severely restricted.
  • the invention / innovation is based on the object of developing an enlarging optical device with the features of the preamble of claim 1 in such a way that it can be produced inexpensively, is of compact design and the lighting device has sufficient luminosity for viewing the visible area.
  • This object is achieved in that the luminous element of the LED consists of clear material and a diffuse surface is arranged directly on its surface.
  • the assembly process of the light source and diffuser is limited to only one process, the optical one BG ⁇ HA 20030409
  • the device is small and the design of the luminous element of the LED made of clear material ensures that the device has sufficient luminosity.
  • the luminous element of the LED should be provided in one piece with a diffuser surface, so that an upstream assembly step for fastening a diffuser surface to an LED luminous element can be omitted.
  • a diffuser can be created by roughening the surface of the LED. This eliminates the negative color edge effects or color dot effects that are otherwise to be seen with LEDs without a diffuser.
  • the entire field of view is illuminated approximately uniformly by roughening the surface of relatively large magnifying glasses.
  • the surface of the LED can also consist of an opaque material layer in order to achieve the diffuser effect, it being possible for the surface layer of the LED to be applied to the clear LED body by means of a dipping process.
  • the diffuser in a further development of the invention / innovation, it is also possible to form the diffuser as a one-piece molded plate on the head of the LED. It is also advantageously possible to provide a focusing element between the diffuser plate and the luminous element of the LED.
  • the LED can also be surrounded with a non-transparent cylindrical envelope, which ensures that light reaches the area visible through the optical device only through the diffuser plate.
  • FIG. 1 is an illustration, partly in section, of an enlarging optical device in the form of a hand-held magnifier with a diffuser LED,
  • FIG. 3 shows an LED with a luminous element made of clear material and integrally formed diffuser plates
  • FIG. 4 shows an LED with a luminous element made of clear material, a focusing element arranged in one piece and a diffuser plate attached to it, the luminous element of the LED being surrounded by a cylindrical shielding jacket.
  • the magnifying optical device 1 shown in the drawing figure 1 in the form of a hand-held magnifier has an illumination element 2 in order to at least partially illuminate the area 3 visible through the magnifying optical device 1.
  • the lighting element comprises an LED 4, the light of which diffusely falls on the visible area 3.
  • the luminous element 5 of the LED 4 consists of clear material, on its surface 6 a diffuser surface 7 is arranged to scatter the light and to avoid negative color edge effects.
  • the diffuser surface 7 is a diffuser plate 8 molded or glued to the luminous element 5 of the LED 4; in the exemplary embodiment illustrated in FIG. 2, the diffuser surface is formed by roughening the surface 6 of the luminous element 5 of the LED 4 formed. Similar to FIG. 2, it is also possible to surface 6 of LED 4 with a different BG ⁇ / HA 20030409
  • fused coating to be provided with an etching layer or corrugated layer or to let the surface consist of opaque material.
  • the head region 10 of the luminous element 5 which is facing away from the connections 9 is provided with a focusing element 11 which in turn carries the diffuser plate 8.
  • a focusing element 11 which in turn carries the diffuser plate 8.
  • FIG. 4 also shows a cylindrical shield 12, which consists of a non-transparent material and surrounds the side wall area of the luminous element 5.
  • This shield 12 ensures that light from the luminous element of the LED 4 can only fall through the diffuser plate 8 onto the visible area 3. It is also within the scope of the invention / innovation to attach the diffuser plate 8 with or without a focusing element 11 by means of the shield 12 to the upper edge region 13 of the LED 4.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)
  • Led Device Packages (AREA)

Abstract

La présente invention concerne un dispositif optique grossissant, notamment une loupe manuelle, une loupe fixe, un microscope ou analogue, comprenant au moins un élément d'éclairage qui sert à éclairer au moins partiellement la zone visible par l'intermédiaire du dispositif optique grossissant, l'élément d'éclairage comprenant au moins une DEL dont la lumière frappe la zone visible de façon diffuse. Selon l'invention, le corps luminescent (5) des DEL (4) est constitué d'un matériau clair et directement contre sa surface (6) est disposée une surface diffuse (7).
EP03794773A 2002-08-14 2003-07-31 Dispositif optique grossissant Withdrawn EP1529228A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20212490U DE20212490U1 (de) 2002-08-14 2002-08-14 Vergrößernde optische Einrichtung
DE20212490U 2002-08-14
PCT/DE2003/002572 WO2004025328A2 (fr) 2002-08-14 2003-07-31 Dispositif optique grossissant

Publications (1)

Publication Number Publication Date
EP1529228A2 true EP1529228A2 (fr) 2005-05-11

Family

ID=7974083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794773A Withdrawn EP1529228A2 (fr) 2002-08-14 2003-07-31 Dispositif optique grossissant

Country Status (3)

Country Link
EP (1) EP1529228A2 (fr)
DE (1) DE20212490U1 (fr)
WO (1) WO2004025328A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009006883U1 (de) 2009-05-07 2009-07-30 Meade Instruments Europe Gmbh & Co. Kg Lupe mit bewegbarem Beleuchtungselement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634264A1 (de) * 1976-07-30 1978-02-02 Licentia Gmbh Halbleiter-lumineszenzbauelement
DE8812039U1 (de) 1988-09-23 1988-12-29 Jungck, Günter, 79400 Kandern Leuchtdiodengehäuse
DD292341A5 (de) 1990-02-26 1991-07-25 Werk Fuer Fernsehelektronik,De Verfahren zur herstellung von miniaturisierten halbleiteranzeigen
US5779924A (en) 1996-03-22 1998-07-14 Hewlett-Packard Company Ordered interface texturing for a light emitting device
JP3009626B2 (ja) 1996-05-20 2000-02-14 日吉電子株式会社 Ｌｅｄ発光球
DE19938926C2 (de) 1999-08-17 2002-08-29 Schweizer Gmbh Optische Fabrik Vergrößerndes optisches System, insbesondere vergrößernde optische Sehhilfe
DE19950899A1 (de) * 1999-10-22 2001-06-07 Lifatec Gmbh Faseroptik Und Op Beleuchtbare optische Vergrösserungsvorrichtung
AU2382801A (en) * 1999-12-30 2001-07-16 Wayne Birchall Anterior segment viewing device
US6767107B1 (en) * 2000-05-09 2004-07-27 Arista Interactive Llc Light apparatus for illuminating a compact computer video screen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004025328A3 *

Also Published As

Publication number Publication date
WO2004025328A2 (fr) 2004-03-25
DE20212490U1 (de) 2002-10-02
WO2004025328A3 (fr) 2004-05-21

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