Four position interlacing apparatus

Claim 2

A multiple position interlacer comprising: (a) an interlace mirror including magnetic material; (b) a support body of magnetic material for supporting the interlace mirror, said support body including a surface having a plurality of surface segments sloping downwardly from a central ridge formed by adjacent surface edges, each surface segment having a sloping, flat surface forming a facet of a preselected interlace angle, a plurality of non-magnetic bars for dividing the support body into a plurality of magnetic cores beneath the facets and a plurality of coils mounted within the plurality of magnetic cores; and (c) an electrical control circuit means operatively connected to the plurality of coils for selectively energizing the coils to move the interlace mirror through preselected angles whereby a plurality of interlaced lines is formed of the energy impinging on the interlace mirror.

Claim 3

A multiple position interlacer according to claim 1, wherein the control circuit means includes a signal generating means for sequentially producing first signals of a first polarity for selectively energizing the coils of the body support for selectively magnetizing the cores thereof and second signals of an opposite polarity, a second signal being produced at the end of each first signal for expediting the demagnetization of the corresponding core.

Claim 4

A multiple position interlacer according to claim 1 further including a second facet on each side of said central ridge having a ridge between each said second facet and the other facet on the side of the central ridge thereof and a separate one of said coils associated with each of said facets.

Claim 5

A multiple position interlacer according to claim 2 further including a second facet on each side of said central ridge having a ridge between each said second facet and the other facet on the side of the central ridge thereof and a separate one of said coils associated with each of said facets.

Claim 6

A multiple position interlacer comprising: (a) an interlace mirror including magnetic material; (b) a support body of magnetic material for supporting the interlace mirror, said support body including a surface having a plurality of surface segments sloping downwardly from a central ridge formed by adjacent surface edges, each surface segment having a sloping, flat surface forming a facet of a preselected interlace angle, a plurality of non-magnetic bars for dividing the support body into a plurality of magnetic cords beneath the facets and a plurality of coils mounted within the plurality of magnetic cores; and (c) an electrical control circuit means operatively connected to the plurality of coils for selectively energizing the coils to move the interlace mirror through preselected angles whereby a plurality of interlaced lines is formed of the energy impinging on the interlace mirror, wherein the control circuit means includes a signal generating means for sequentially producing first signals of a first polarity for selectively energizing the coils of the body support for selectively magnetizing the cores thereof and second signals of an opposite polarity, a second signal being produced at the end of each first signal for expediting the demagnetization of the corresponding core, wherein the signal generating means includes a clock means, logic circuitry operatively connected to the clock means for producing a plurality of control signals, and a switching means operatively connected to the logic control means for sequentially introducing current flowing in a first direction for energizing the coils a preselected time and then sequentially introducing current flowing in a second direction in the coils for deenergizing the coils a preselected time prior to turn off whereby the coils first energize the cores in a first direction followed by energization in a second direction prior to cutoff for expediting demagnetization of the coils.

Claim 7

A multiple position interlacer comprising: (a) an interlace mirror including magnetic material; (b) a support body of magnetic material for supporting the interlace mirror, said support body including a surface having a plurality of surface segments sloping downwardly from a central ridge formed by adjacent surface edges, each surface segment having a sloping, flat surface forming a facet of a preselected interlace angle, a plurality of non-magnetic bars for dividing the support body into a plurality of magnetic cords beneath the facets and a plurality of coils mounted within the plurality of magnetic cores; and (c) an electrical control circuit means operatively connected to the plurality of coils for selectively energizing the coils to move the interlace mirror through preselected angles whereby a plurality of interlaced lines is formed of the energy impinging on the interlace mirror, wherein the control circuit means includes a signal generating means for sequentially producing first signals of a first polarity for selectively energizing the coils of the body support for selectively magnetizing the cores thereof and second signals of an opposite polarity, a second signal being produced at the end of each first signal for expediting the demagnetization of the corresponding core, wherein the signal generating means includes a clock means, logic circuitry operatively connected to the clock means for producing a plurality of control signals, and a switching means operatively connected to the logic control means for sequentially introducing current flowing in a first direction for energizing the coils a preselected time and then sequentially introducing current flowing in a second direction in the coils for deenergizing the coils a preselected time prior to turn off whereby the coils first energize the cores in a first direction followed by energization in a second direction prior to cutoff for expediting demagnetization of the coils.

Claim 8

A multiple position interlacer according to claim 5 wherein the switching means comprises a plurality of solid state switches operatively connected to the logic circuitry.

Claim 9

A multiple position interlacer according to claim 6 wherein the logic circuitry includes a flip flop circuit connected to the clock means for producing a plurality of control signals, a plurality of AND gates operatively connected to the flip flop circuit for selectively generating a plurality of logic high and low signals, a plurality of one shot multivibrator circuits operatively connected to the plurality of AND gates for outputting simultaneously a plurality of high/low pulses of a first preselected length and then a plurality of low/high signals of a second preselected length, a plurality of solid state transistors operatively connected to the plurality of one shot multivibrator circuits for receiving the high/low and low/high signals, respectively, and a plurality of solid state switches operatively connected to the plurality of solid state transistors for selectively switching the high/low and low/high signals to the plurality of coils of the support member.