JPWO2020068513A5 - - Google Patents

Claims (15)

a glass laminate,
first and second glass layers having substantially parallel outermost major surfaces facing away from each other;
a reflective film having opposed first and second major surfaces and disposed between said first and second glass layers, said first and second major surfaces facing the first and second glass layers, the reflective film having an average reflectance for the first polarization state within a predetermined visible wavelength range at a predetermined angle of incidence of at least 15%, and at least 30% of said a reflective film having an average transmittance for a second orthogonal polarization state within the predetermined visible wavelength range at a predetermined angle of incidence;
a first adhesive layer disposed between the first glass layer and the reflective film to bond them together;
a second adhesive layer disposed between the second glass layer and the reflective film to bond them together, wherein the second adhesive layer is the first adhesive layer; so that the first major surface of the reflective film is separated from the outermost major surface of the first glass layer by a distance d1, and the second major surface of the reflective film is A glass laminate separated from said outermost major surface of said second glass layer by a distance d2, wherein 0.05≦d1/d2≦0.9. 2. The glass laminate of claim 1, wherein 0.1≤d1/d2≤0.8. 3. A glass laminate according to claim 1 or 2, wherein said second adhesive layer is at least twice as thick as said first adhesive layer. Claim 1 or 2, wherein the first adhesive layer has a thickness in the range of 1 micron to 75 microns and the second adhesive layer has a thickness in the range of 300 microns to 1000 microns. A glass laminate as described in . A glass laminate according to any preceding claim, wherein said second glass layer is at least 1.5 times thicker than said first glass layer. said average reflectance of said reflective film for said first polarization state within said predetermined range of visible wavelengths at said predetermined angle of incidence is at least 20%, and within said range of visible wavelengths at said predetermined angle of incidence; A glass laminate according to any one of the preceding claims, wherein said average transmission for said reflective film for said second polarization state is at least 50%. a glass laminate,
first and second glass layers having substantially parallel outermost major surfaces;
a reflective film comprising a plurality of alternating polymeric interference layers and asymmetrically disposed between said outermost major surfaces whereby a light source positioned within 2 m of said glass laminate is Projecting a line onto the outermost major surface of the first glass layer along a first direction forming an angle θ within the range of 30° to 85° with respect to the normal to the laminate, the line , about the centerline of the projected line extending along a second direction orthogonal to the first plane defined by the first direction and the normal and having a full width at half maximum of 0.05 degrees or less. a first portion of the projected line is reflected from the reflective film and a second portion of the projected line is reflected from the outermost major surface of the first glass layer when having a projected luminance distribution of and a reflected image of the line includes a primary reflected image portion defined by the reflected first portion and a first ghost portion defined by the reflected second portion; A glass laminate wherein said first ghost portion substantially overlaps said primary reflected image portion. A third portion of the projected line reflects from the outermost major surface of the second glass layer, and the reflected image of the line is defined by the reflected third portion. 8. The glass laminate of Claim 7, further comprising a ghost portion, wherein said second ghost portion substantially overlaps said primary reflected image portion. 9. The glass laminate of claim 8 , wherein said second ghost portion has a brightness less than 0.6 times the brightness of said first ghost portion. wherein said reflected image has a reflected intensity distribution, said reflected intensity distribution having a maximum at a peak of said reflected intensity distribution and monotonically decreasing in at least one lateral direction from said peak to an edge of said reflected image. Item 9. The glass laminate according to any one of items 7 to 9 . 11. The method according to any one of claims 7 to 10 , wherein the full width at half maximum of the projected line is 0.03 degrees or less, and the reflected image has a luminance angular distribution with a full width at half maximum of 0.1 degrees or less. Glass laminate as described. a glass laminate,
first and second glass layers having substantially parallel outermost major surfaces;
a reflective film comprising a plurality of alternating polymeric interference layers disposed between and adhered to said first and second glass layers through respective first and second adhesive layers; One adhesive layer has a thickness no greater than 0.6 times the thickness of the second adhesive layer, so that the light source is angled between 30 and 85 degrees with respect to the normal to the glass laminate. projecting a plurality of parallel lines onto the outermost major surface of the first glass layer along a first direction forming an angle θ within a range, wherein the plurality of parallel lines form the first direction and extending along a second direction orthogonal to a first plane defined by said normal and spaced apart along a third direction within said first plane and orthogonal to said first direction; a first portion of each projected line reflects from the reflective film, a reflected image of each line includes the reflected first portion, and each reflected image is centerline of the reflected image and a distribution of angles α between said centerline of said reflected image and said second direction having a full width at half maximum of less than 3 degrees. The reflective film has an average reflectance of at least 15% for a first polarization state within a predetermined range of visible wavelengths at a predetermined angle of incidence; 13. The glass laminate of Claim 12, wherein the average transmission for the orthogonal second polarization state is at least 30%. Claim 12 or 13, wherein said first adhesive layer has a thickness in the range of 1 micron to 75 microns and said second adhesive layer has a thickness in the range of 300 microns to 1000 microns. A glass laminate as described in . A glass laminate according to any one of claims 12 to 14, wherein the distribution of angles α has a full width at half maximum of less than 2 degrees.