Provided are a coloring composition including a colorant including a green pigment, a compound A, and a resin, in an which amount of the green pigment dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is less than 0.01 g, an amount of the compound A dissolved in 100 g of propylene glycol methyl ether acetate at 25° C. is 0.01 g or more, the coloring composition includes 0.1 to 10 parts by mass of the compound A with respect to 100 parts by mass of the green pigment, and the green pigment and the compound A satisfy a relationship of “−1.0 eV≤LUMO.sub.B−LUMO.sub.A≤1.0 eV”; a film; a color filter; a solid-state imaging element; and an image display device. LUMO.sub.B is an energy level of a lowest unoccupied molecular orbital of the green pigment, and LUMO.sub.A is an energy level of a lowest unoccupied molecular orbital of the compound A.

A sensor system comprises a LiDAR unit, a camera for visible light and a cover through which light arrives at the LiDAR unit and the camera. The cover comprises a layer containing dyes.

The light transmission of the cover in the range from 380 nm to 780 nm is 3% to 25% and in the range from 380 nm to 1100 nm is 40% or more. The attenuation of the LiDAR signal by the cover is such that at least 65% of the original signal intensity reaches the LiDAR detector.

The layer containing dyes contains a composition comprising i) at least 70% by weight of a transparent thermoplastic polymer, ii) at least one green and/or red dye and iii) at least one red and/or violet dye.

The product of the sum of the weight % fractions of dyes ii) and iii) and the thickness of the layer containing dyes is 0.041 to 0.12 wt % mm.

Finally, the composition contains 0% to 0.0005% by weight of IR absorbers.

A sensor system comprises a LiDAR unit, a camera for visible light and a cover through which light arrives at the LiDAR unit and the camera. The cover comprises a layer containing dyes.

The light transmission of the cover in the range from 380 nm to 780 nm is 3% to 25% and in the range from 380 nm to 1100 nm is 40% or more. The attenuation of the LiDAR signal by the cover is such that at least 65% of the original signal intensity reaches the LiDAR detector.

The layer containing dyes contains a composition comprising i) at least 70% by weight of a transparent thermoplastic polymer, ii) at least one green and/or red dye and iii) at least one red and/or violet dye.

The product of the sum of the weight % fractions of dyes ii) and iii) and the thickness of the layer containing dyes is 0.041 to 0.12 wt % mm.

Finally, the composition contains 0% to 0.0005% by weight of IR absorbers.

The present invention relates to novel methine dyes, methods for the preparation thereof and use thereof for dyeing plastics, especially polyamides, so as to obtain yellow to orange colourings with improved light fastness and improved thermal stability. Such dyes include a dye of the formula (I) ##STR00001## in which R.sup.1 is hydrogen, halogen, COOH or COOR.sup.11, R.sup.2 is hydrogen, halogen, COOH, COOR.sup.12 or CN, R.sup.3 is alkyl or phenyl, R.sup.4 and R.sup.5 are each independently alkyl, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.19 are each independently hydrogen, halogen, alkyl, alkoxy or COOR.sup.13, and R.sup.11, R.sup.12 and R.sup.13 are each independently alkyl.

The present invention relates to novel methine dyes, methods for the preparation thereof and use thereof for dyeing plastics, especially polyamides, so as to obtain yellow to orange colourings with improved light fastness and improved thermal stability. Such dyes include a dye of the formula (I) ##STR00001## in which R.sup.1 is hydrogen, halogen, COOH or COOR.sup.11, R.sup.2 is hydrogen, halogen, COOH, COOR.sup.12 or CN, R.sup.3 is alkyl or phenyl, R.sup.4 and R.sup.5 are each independently alkyl, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.19 are each independently hydrogen, halogen, alkyl, alkoxy or COOR.sup.13, and R.sup.11, R.sup.12 and R.sup.13 are each independently alkyl.

The present invention relates to novel methine dyes, methods for the preparation thereof and use thereof for dyeing plastics, especially polyamides, so as to obtain yellow to orange colourings with improved light fastness and improved thermal stability. Such dyes include a dye of the formula (I) ##STR00001## in which R.sup.1 is hydrogen, halogen, COOH or COOR.sup.11, R.sup.2 is hydrogen, halogen, COOH, COOR.sup.12 or CN, R.sup.3 is alkyl or phenyl, R.sup.4 and R.sup.5 are each independently alkyl, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.19 are each independently hydrogen, halogen, alkyl, alkoxy or COOR.sup.13, and R.sup.11, R.sup.12 and R.sup.13 are each independently alkyl.

A copper clad laminate and a printed-circuit board. The copper clad laminate comprises a dielectric substrate layer and a copper foil layer. The copper foil layer is located on at least one surface of the dielectric substrate layer, wherein the copper foil layer comprises an iron element in a weight content of less than 10 ppm, a nickel element in a weight content of less than 10 ppm, a cobalt element in a weight content of less than 10 ppm, and a molybdenum element in a weight content of 10 ppm. The copper clad laminate has a passive intermodulation PIM of less than −158 dBc (700 MHz/2600 MHz).

A copper clad laminate and a printed-circuit board. The copper clad laminate comprises a dielectric substrate layer and a copper foil layer. The copper foil layer is located on at least one surface of the dielectric substrate layer, wherein the copper foil layer comprises an iron element in a weight content of less than 10 ppm, a nickel element in a weight content of less than 10 ppm, a cobalt element in a weight content of less than 10 ppm, and a molybdenum element in a weight content of 10 ppm. The copper clad laminate has a passive intermodulation PIM of less than −158 dBc (700 MHz/2600 MHz).

The resin composition of the present invention is a resin composition containing: a bismaleimide compound (A) containing a constituent unit represented by the following formula (1) and maleimide groups at both ends of the molecular chain; a compound (B) containing one or more carboxy groups; and a photo initiator (C).

##STR00001##

In the formula (1), R.sub.1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. R.sub.2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. Each R.sub.3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms. Each n independently represents an integer of 1 to 10.

The resin composition of the present invention is a resin composition containing: a bismaleimide compound (A) containing a constituent unit represented by the following formula (1) and maleimide groups at both ends of the molecular chain; a compound (B) containing one or more carboxy groups; and a photo initiator (C).

##STR00001##

In the formula (1), R.sub.1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. R.sub.2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. Each R.sub.3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms. Each n independently represents an integer of 1 to 10.