JP3045220U - Reflector with cavity - Google Patents

Abstract

(57) [Summary] (With correction) [PROBLEMS] Since a conventional reflector is a glass material, high-temperature bending polishing is complicated. Solve this point. A flexible cavity (10) is formed by extending a flexible polyethylene film (3) along the circumference of the container (1), such as a drum-shaped circular box, on the side opposite to the bottom plate, and bending the end with an iron band fastener. By evacuating the air in the cavity, the polyethylene membrane can create a physically concave surface.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The vessel structure is made of metal welding, polyethylene is a ready-made product, etc. Vacuum method is suitable for ordinary technology, and plating (silver) on polyethylene film is by a known chemical method

[0002]

[Prior art]

 Conventional products require a great deal of time and waste if they are made of glass, making them unsatisfactory

[0003]

[Problems to be solved by the invention]

 Conventional reflectors require high-temperature bending and polishing of glass and complicated process, and the present invention provides a concave reflector that can be adapted by evacuating the sheet film attached to equipment using an extremely simple method.

[0004]

[Means for solving the problem]

 By making the inside of the polyethylene film adhered to the tram-type cavity lid side a vacuum, it is easy to obtain a reflecting mirror that is easily made concave.

[0005]

[Embodiment of the invention]

 The surface of the polyethylene film coated with epoxy paint becomes concave when evacuated and can maintain a constant reflector by the correction valve. Of course, the curved surface becomes a reflective surface of brightness by silver plating.

[0006]

【Example】

 When considering the use of solar energy, it is possible to apply silver plating to the reflective surface to effectively reflect heat and provide energy to the focal point.

[0007]

[Effect of the invention]

 This model has elements that can be manufactured larger than conventional glass products.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of an assembled and evacuated embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of a container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tram type container 2 Reflecting mirror surface 3 Polyethylene film 4 Epoxy paint surface 5 Silver plating surface 6 Adhesive part 7 Evacuation valve 8 Correction valve 9 Reflector mirror focal point 10 Cavity

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 5, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

Claims (1)

[Utility model registration claims] 1. A reflecting mirror that optically utilizes reflected light incident on a concave curved surface of a film generated by exhausting air in a polyethylene film-conductive material-adhered container on a side opposite to a drum type container bottom plate.