DE202009011117U1 - Protection device for solar observation through astronomical telescopes - Google Patents

Abstract

Protective device (Dissipatorgehäuse with ceramic plate 4) for solar observation by means of a prism through astronomical telescopes, the sunlight is divided into low light and light to be observed. characterized in that in the direct radiation beam (6) of the system, a pinhole system of one or more pinhole with a plurality of openings (1) is mounted, which attenuates the sunlight through the aperture function and the resulting heat via exhaust ports (louvers 2) derived directly attached to the ends of the sheets.

Description

Devices more similar Type (so-called "Herschel prisms") are used in amateur astronomy for observing the sun high magnification telescopes used. These use the optical properties of a prism, which breaks the light and the main light energy (about 95% = residual radiation) after outside and thus a sufficient reduction of the enormous Light energy of the sun allows.

Previous Versions of this system were either with deflecting mirrors or Heat traps equipped, but a eye-damaging visible from the outside ray beam which represents a danger to the human eye or resulting in burns on skin and clothing in bystanders or objects can lead.

tries to banish this danger failed so far, since that from the prism out the rest of the beam deflected residual beams do not escape from the housing can without excessive heating of the housing to cause.

These Problems are solved with the features listed in the protection claims 1 to 5.

One Heat and light filter system provides the remedy by the sunlight completely inside the case first passed through one or more light-absorbing pinholes and thus weakened becomes. As pinhole can be a panel with a variety of openings be used, for. B. punched sheets preferably for further Light absorption dark colored become. After that falls the sunlight on a heat-repellent Ceramic plate which further weakens the sunlight. The on the or on several pinholes as well as on the ceramic plate occurring heat is thereby by air circulation (by specially arranged vents in the housing) dissipated. Furthermore will the residual heat from the sheets and the ceramic plate through an air bridge between the housing parts prevents it from spreading in the prism housing and a continuous warming to effect.

Around the one from the white Ceramic plate reflected residual solar radiation in the prism housing to absorb The ceramic plate is arranged at an angle in the beam path that the reflected residual solar radiation at the angle of incidence again the telescope exits without illuminating the prism housing itself, or disturb the resulting observed sun image. As a positive side effect can on the back side the solar panel is observed the sun image / sunlight spot, what in the presented protection device referred to as "sun seeker" becomes.

An embodiment of the construction is based on explained.

These shows the sectional view of the housing interior.

In the sectional view, the pinhole ( 1 ), Louvers ( 2 ), Ceramic plate ( 3 ) and the Airlift ( 5 ) as well as the dissipator housing ( 4 ).

The Advantages of the new system are that the user with the system completely safely observe the sun with a telescope, without that The system heats up too much and without being observed Sun image disturbing lighten. Furthermore, the sun image appears on the back the ceramic plate and thus facilitates the search of the sun with the telescope.

Claims (5)

Protective device (dissipator housing with ceramic plate 4 ) for solar observation by means of a prism through astronomical telescopes, the sunlight is divided into low light and light to be observed. characterized in that in the direct radiation beam ( 6 ) system of a pinhole system of one or more pinhole apertures with a plurality of openings ( 1 ) is attached, which weakens the sunlight through the aperture function and the resulting heat through exhaust vents (louvers 2 ), which are attached directly to the ends of the sheets. Schutzvorichtung according to claim 1, characterized in that after the shutter system as the last outer surface of the Dissipatorgehäuses ( 4 ) a heat-resistant ceramic plate ( 3 ) is mounted, which further reduces the heat of the residual light beam (dispersed) with the residual heat occurring is derived by exhaust ports. Protective device according to one of the preceding claims, characterized in that the ceramic plate ( 3 ) is arranged at a calculated angle in the beam path such that the reflected light exits the system at the angle of incidence without illuminating the interior of the housing and thus illuminating without observing the solar image. Protective device according to one of the preceding claims, characterized in that the ceramic plate ( 3 ) at the same time acts as a sun seeker, because as a side effect a sun image / Son The light spot on the back of the ceramic plate can be seen after you can set the telescope mount. Protective device according to one of the preceding claims, characterized in that the housing part (dissipator housing) in which the perforated plates ( 1 ) as well as the ceramic plate ( 3 ), only in contact with the main housing has contact and thus an air bridge ( 5 ), which as insulation the residual heat, which neither by the exhaust air openings ( 2 ) still through the ceramic plate ( 3 ) could be remedied by preventing it from spreading in the prism housing.