Striped dichroic filter with butted stripes and dual lift-off me

Details Striped dichroic filter with butted stripes and dual lift-off me Striped dichroic filter with butted stripes and dual lift-off me

1974-07-01

1976-09-21

Lusignan, Michael R.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

350166, 427168, 427259, 427264, 427266, 427309, B05D 506, G02B 528, G02B 522

Patent

active

039815684

ABSTRACT:
A striped dichroic filter having a substrate with a surface. A first set of spaced parallel stripes capable of reflecting at least one color are carried by the surface. A second set of spaced parallel stripes capable of reflecting at least one different color different from said one color reflected by the first set of stripes is also carried by the surface. The first and second sets of stripes are disposed so that they are substantially parallel to each other and so that they are in abutting relationship with substantially no space or overlap between adjacent stripes. Third and additional sets of stripes for reflecting other colors may be provided.
In the method for making the striped dichroic filter, a dual lift-off is used which utilizes both metal and resist lift-off techniques that are mutually exclusive.

REFERENCES:
patent: 3617331 (1971-11-01), Illsley et al.

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