1. A tremble correcting device comprising:
a correction optical system for correcting a tremble of a focused image of an optical device;
a stepping motor that moves said correction optical system in a predetermined direction;
a detector that detects an amount of tremble of an optical axis of said optical device; and
a controller that generates driving pulse signals of said stepping motor and controls a pulse rate of said driving pulse signals in accordance with said amount of tremble.
2. The tremble correcting device of claim 1, wherein said controller sets said pulse rate of said driving pulse signals to be within a pull-in torque characteristic area, when said stepping motor starts or immediately after a rotational direction of said stepping motor is changed.
3. The tremble correcting device of claim 1, wherein said controller comprises:
a pulse signal generator that generates a plurality of pulse groups which include a different pulse rate;
a pulse number calculator that calculates a necessary pulse number per a predetermined period in accordance with said amount of tremble;
a driving pulse signal generator that selects and outputs one of said plurality of pulse groups based on said necessary pulse number in said predetermined period, as said driving pulse signals.
4. The tremble correcting device of claim 3, wherein said driving pulse signal generator comprises:
a multiplexer to which said plurality of pulse groups is input;
a counter to which output of said multiplexer is input as a clock;
a pulse loader which loads said necessary pulse number in said counter;
a gate which is opened and passes the output of said multiplexer while said counter counts said necessary pulse number.
5. The tremble correcting device of claim 4, wherein said driving pulse signal generator selects one of said plurality of pulse groups whose pulse number in said predetermined period is equal to said necessary pulse number, and outputs said selected pulse group for said predetermined period.
6. The tremble correcting device of claim 5, wherein said driving pulse signal generator includes a plurality of generators that generates a pulse group, and the pulse signal of each of said plurality of generators is output to said multiplexer, said pulse group of said plurality of generators having a predetermined pulse interval and a pulse number of said pulse group in said predetermined period being different between said plurality of generators.
7. The tremble correcting device of claim 4, wherein said driving pulse signal generator selects a pulse group including a pulse number in said predetermined period which is equal to or more than and nearest to said necessary pulse number, and outputs pulses of said selected pulse group in said predetermined period as said driving pulse signal, a number of said output pulses corresponding to said necessary pulse number.
8. The tremble correcting device of claim 7, wherein immediately after said counter counts said necessary pulse number, said gate is closed so that a total number of output pulses of said driving pulse signal coincides with said necessary pulse number.
9. The tremble correcting device of claim 7, wherein said pulse signal generator includes:
a generator that generates a standard pulse group having a predetermined number of pulses in said predetermined period, said predetermined number of pulses being an interger; and
a plurality of frequency dividers connecting in series whereby each output of said frequency dividers is sequentially divided, and
each output of said generator and said frequency dividers is input to said multiplexer.
10. A tremble correcting device comprising:
a correction optical system for correcting a tremble of a focused image of an optical device;
a stepping motor that relatively moves said correction optical system in a predetermined direction;
a detector that detects an amount of tremble of an optical axis of said optical device; and
means for controlling a pulse rate of driving pulse signals of said stepping motor in accordance with said amount of tremble, after generating said driving pulse signals.
11. The tremble correcting device of claim 10, wherein said controlling means comprises:
means for generating a plurality of pulse groups a pulse rate of which is different from each other;
means for calculating a necessary pulse number for canceling said amount of tremble, per a predetermined period;
means for selecting one of said pulse groups based on said necessary pulse number; and
means for outputting said selected one of said pulse groups per said predetermined period.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Architectural trim apparatus and a building comprising in combination:
said architectural trim apparatus having a body portion made from a foamed plastic, said body portion having opposite side edges and an underside surface; and
a mesh material imbedded within the body portion of the trim and extending out from the body portion at an approximate location of a junction of the underside surface and a side edge, said mesh also extending a distance along a length of said at least one side edge,
said building having a surface thereon,
said body portion’s underside surface being in contact with said building surface,
said extending mesh material being attached to said building surface.
2. The architectural trim of claim 1, wherein said body portion comprises a foamed plastic having an approximate single density.
3. The architectural trim of claim 1, wherein said body portion comprises a foamed plastic having a first density and a second density, said first density being greater than the second density, said first density being generally located at an outside surface of said architectural trim.
4. The architectural trim of claim 1, wherein said mesh material comprises one or more tabs extending out approximately from said junction location.
5. The architectural trim of claim 1, wherein said body portion includes an outer surface, said under surface being configured at least in part, to fit against the surface of said building, said outer surface having an architectural trim configuration.
6. The architectural trim of claim 1, wherein said imbedded mesh material exits from and extends some distance along said underside surface before extending out from said junction.
7. The architectural trim of claim 1, wherein said imbedded mesh material exits from said underside surface of said body portion.
8. The architectural trim of claim 1, wherein said foamed plastic comprises a urethane.
9. Architectural trim apparatus and a building comprising in combination:
said architectural trim apparatus having a body portion made from a foamed plastic, said body portion having opposite side edges and an underside surface; and
one or more tabs imbedded within the body portion of the trim and extending out approximately from a junction of said at least one side edge and said underside surfaces,
said building having a surface
said body portion’s underside surface being in contact with said building surface,
said one or more tabs being attached to said building surface.
10. The architectural trim of claim 9 wherein said plastic foam comprises a urethane.
11. Architectural trim apparatus and a building comprising in combination:
said architectural trim apparatus having a body portion made from a foamed plastic, said body portion having opposite side edges and an underside surface; and
a mesh material imbedded within the body portion of the trim and extending out from said body portion, said mesh also extending a distance along a length of said side edges, wherein said imbedded mesh material extends from said body portion in close proximity to a junction of said at least one side edge and said underside surface,
a surface on said building
said body portion’s underside surface being in contact with said building surface,
said extending mesh material being attached to said building surface.
12. The architectural trim of claim 11 wherein said plastic foam comprises a urethane.
13. The architectural trim apparatus and a building of claim 1 wherein said underside surface is attached to said building surface.
14. The architectural trim apparatus and a building of claim 9 wherein said underside surface is attached to said building surface.
15. The architectural trim apparatus and a building of claim 11 wherein said underside surface is attached to said building surface.