Glass panel

• US 6,830,791 B1
• Filed: 04/20/2000
• Issued: 12/14/2004
• Est. Priority Date: 09/14/1998
• Status: Expired due to Term

• Current Assignee: Nippon Sheet Glass Company Limited (Nippon Telegraph and Telephone Corporation)
• Original Assignee: Nippon Sheet Glass Company Limited (Nippon Telegraph and Telephone Corporation)
• Inventors: Misonou, Masao, Katoh, Hidemi
• Primary Examiner(s): Chen, Vivian
• Application Number:
  US09/529,887
• Time in Patent Office: 1,699 Days
• Field of Search: 428/34, 428/426, 428/432, 428/433, 428/434, 428/469, 428/472, 428/492.1
• US Class Current: 428/34
• CPC Class Codes: B32B 17/10055 with at least one intermediate air space
• CPC Class Codes: E06B 3/66 Units comprising two or more parallel glass or like panes permanently secured together reforming and uniting glass sheets by fusing C03B23/00; joining glass to glass or to other materials C03C27/00; laminated glass B32B17/10
• CPC Class Codes: E06B 3/6612 Evacuated glazing units
• CPC Class Codes: E06B 3/66304 Discrete spacing elements, e.g. for evacuated glazing units
• CPC Class Codes: E06B 3/6715 specially adapted for increased thermal insulation or for controlled passage of light E06B3/66323 takes precedence; coating of glass pains C03C17/00; devices or arrangements for controlling the intensity, colour, phase, polarisation or direction of light G02F1/00
• CPC Class Codes: Y02A 30/249 Glazing, e.g. vacuum glazing
• CPC Class Codes: Y02B 80/22 Glazing, e.g. vaccum glazing
• CPC Class Codes: Y10T 428/31678 Of metal

Abstract

In a glass panel includes at least three glass sheets for forming an air layer (K) and a vacuum layer (S) side by side and for partitioning between outdoor space and indoor space, at least either an outdoor-side glass sheet contacting the outdoor space or an indoor-side glass sheet contacting the indoor space of the glass sheets (G) contacts the vacuum layer (S) and includes a low-emittance film layer (M) formed on a face thereof contacting the vacuum layer (S).

Claims

1. A glass panel comprising

at least three glass sheets for forming an air layer and a vacuum layer side by side and for partitioning between outdoor space and indoor space;

wherein at least either an outdoor-side glass sheet contacting the outdoor space or an indoor-side glass sheet contacting the indoor space of the glass sheets contacts the vacuum layers and includes a low-emittance film layer formed only on the vacuum contacting face of said outdoor-side glass sheet or said indoor-side glass sheet, said low-emittance film layer being an electroconductive film and having a reflectance of at least one of the ranges selected from the group consisting of a) 0.2 and 0.15 and b) 0.10 and 0.02 by conductive electrons within the film reflecting infrared rays and wherein said air layer is formed by charging dessicant into an inner space thereof.

2. The glass panel according to claim 1, wherein the low-emittance film layer comprises a thin film containing, as the main component thereof, stannic oxide mixed with fluorine.

3. The glass panel according to claim 1, wherein the low-emittance film layer comprises a thin film including at least one set of composite layer consisting of a silver layer and a pair of transparent dielectric layers opposed to each other across the silver layer.

4. A glass panel consisting essentially of:

at least three glass sheets for forming an air layer and a vacuum layer side by side and for partitioning between outdoor space and indoor space;

wherein either an outdoor-side glass sheet contacting the outdoor space or an indoor-side glass sheet contacting the indoor space of the glass sheets contacts the vacuum layer, and includes a low-emittance film layer formed only on the vacuum contacting face of one of said outdoor-side glass sheet or said indoor-side glass sheet, said low-emittance film layer being an electroconductive film and having a reflectance of at least one of the ranges selected from the group consisting of a) 0.2 and 0.15 and b) 0.10 and 0.02 by conductive electrons within the film reflecting infrared rays and wherein said air layer is formed by charging dessicant into an inner space thereof.

5. A glass panel consisting of:

three glass sheets for forming an air layer and a vacuum layer side by side and for partitioning between outdoor space and indoor space;

wherein either an outdoor-side glass sheet contacting the outdoor space or an indoor-side glass sheet contacting the indoor space of the glass sheets contacts the vacuum layers and includes a low-emittance film layer formed only on the vacuum contacting face thereof of one of said outdoor-side glass sheet or said indoor-side glass sheet, said low-emittance film layer being an electroconductive film and having a reflectance of at least one of the ranges selected from the group consisting of a) 0.2 and 0.15 and b) 0.10 and 0.02 by conductive electrons within the film reflecting infrared rays and wherein said air layer is formed by charging dessicant into an inner space thereof.