What is claimed is:
1. An ultrashort pulse laser oscillator comprising:
a laser resonator composed of a mirror having a predetermined transmissivity on outgoing side, and a total reflection mirror which does not transmit light, but reflect the same and disposed oppositely to said mirror;
a continuous wave oscillation laser for inputting excitation laser beam into said laser resonator;
a tunable laser medium capable of laser oscillation in a wavelength region over a predetermined range disposed in said laser resonator;
a photoacoustic optical crystal having birefringent property as a crystal for selecting wavelength, which is disposed in said laser resonator and to which is input outgoing light from said tunable laser medium;
a piezoelectric element mounted on said photoacoustic optical crystal, which is distorted in response to a frequency of voltage upon application of the voltage and inputs an acoustic wave having a frequency in response to the distortion to said photoacoustic optical crystal;
a power source for applying voltage to said piezoelectric element; and
a control means for controlling a frequency of voltage to be applied to said piezoelectric element by said power source;
a frequency of voltage to be applied to said piezoelectric element by said power source being controlled by said control means, whereby the voltage having a frequency conforming to a distance defined between said mirror on outgoing side and said total reflection mirror is applied to said piezoelectric element by means of said power source, besides laser beam output from said mirror on outgoing side being utilized as outgoing laser beam from said laser resonator.
2. An ultrashort pulse laser oscillator comprising:
a laser resonator composed of a mirror having a predetermined transmissivity on outgoing side, and a total reflection mirror which does not transmit light, but reflect the same and disposed oppositely to said mirror;
a continuous wave oscillation laser for inputting excitation laser beam into said laser resonator;
a tunable laser medium capable of laser oscillation in a wavelength region over a predetermined range disposed in said laser resonator;
a photoacoustic optical crystal having birefringent property as a crystal for selecting wavelength, which is disposed in said laser resonator and to which is input outgoing light from said tunable laser medium;
a piezoelectric element mounted on said photoacoustic optical crystal, which is distorted in response to a frequency of voltage upon application of the voltage and inputs an acoustic wave having a frequency in response to the distortion to said photoacoustic optical crystal;
a power source for applying voltage to said piezoelectric element; and
a control means for controlling a frequency of voltage to be applied to said piezoelectric element by said power source;
a frequency of voltage to be applied to said piezoelectric element by said power source being controlled by said control means, whereby the voltage having a frequency conforming to a distance defined between said mirror on outgoing side and said total reflection mirror is applied to said piezoelectric element by means of said power source, upon application of the voltage, said piezoelectric element being distorted in response to the frequency of said voltage applied, so that an acoustic wave having a frequency in response to the distortion is input to said photoacoustic optical crystal, and said photoacoustic optical crystal outputting outgoing light having a wavelength in response to the frequency of said power source conforming to a distance defined between said mirror on outgoing side and said total reflection mirror among the outgoing light from said tunable laser medium input as diffraction light diffracted in a predetermined direction, thereby outputting said diffraction light from said mirror on outgoing side as outgoing laser beam.
3. An ultrashort pulse laser oscillator as claimed in claim 1 comprising further an optical element disposed in said laser resonator and for compensating dispersion of diffraction light output from said photoacoustic optical crystal.
4. An ultrashort pulse laser oscillator as claimed in claim 2 comprising further an optical element disposed in said laser resonator and for compensating dispersion of diffraction light output from said photoacoustic optical crystal.
5. An ultrashort pulse laser oscillator as claimed in claim 1 wherein said continuous wave oscillation laser is a continuous wave oscillation solid laser.
6. An ultrashort pulse laser oscillator as claimed in claim 2 wherein said continuous wave oscillation laser is a continuous wave oscillation solid laser.
7. An ultrashort pulse laser oscillator as claimed in claim 3 wherein said continuous wave oscillation laser is a continuous wave oscillation solid laser.
8. An ultrashort pulse laser oscillator as claimed in claim 4 wherein said continuous wave oscillation laser is a continuous wave oscillation solid laser.
9. An ultrashort pulse laser oscillator as claimed in claim 1 wherein said continuous wave oscillation laser is a continuous wave oscillation semiconductor laser.
10. An ultrashort pulse laser oscillator as claimed in claim 2 wherein said continuous wave oscillation laser is a continuous wave oscillation semiconductor laser.
11. An ultrashort pulse laser oscillator as claimed in claim 3 wherein said continuous wave oscillation laser is a continuous wave oscillation semiconductor laser.
12. An ultrashort pulse laser oscillator as claimed in claim 4 wherein said continuous wave oscillation laser is a continuous wave oscillation semiconductor laser.
13. An ultrashort pulse laser oscillator as claimed in claim 1 wherein said continuous wave oscillation laser is a continuous wave oscillation Ar ion laser.
14. An ultrashort pulse laser oscillator as claimed in claim 2 wherein said continuous wave oscillation laser is a continuous wave oscillation Ar ion laser.
15. An ultrashort pulse laser oscillator as claimed in claim 3 wherein said continuous wave oscillation laser is a continuous wave oscillation Ar ion laser.
16. An ultrashort pulse laser oscillator as claimed in claim 4 wherein said continuous wave oscillation laser is a continuous wave oscillation Ar ion laser.
17. An ultrashort pulse laser oscillator as claimed in claim 1 wherein said continuous wave oscillation laser is second harmonics of a continuous wave oscillation Nd solid laser.
18. An ultrashort pulse laser oscillator as claimed in claim 2 wherein said continuous wave oscillation laser is second harmonics of a continuous wave oscillation Nd solid laser.
19. An ultrashort pulse laser oscillator as claimed in claim 3 wherein said continuous wave oscillation laser is second harmonics of a continuous wave oscillation Nd solid laser.
20. An ultrashort pulse laser oscillator as claimed in claim 4 wherein said continuous wave oscillation laser is second harmonics of a continuous wave oscillation Nd solid laser.
21. An ultrashort pulse laser oscillator as claimed in any one of the claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20 wherein said laser resonator is a Z-holding type laser resonator.
22. An ultrashort pulse laser oscillator as claimed in any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20 wherein said laser resonator is an X-holding type laser resonator.
23. An ultrashort pulse laser oscillator as claimed in any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20 wherein said tunable laser medium is arranged in such that an end plane of incidence thereof has been Brewster cut, and said end plane of incidence is disposed at Brewster angle with respect to an optical path in said laser resonator.
24. An ultrashort pulse laser oscillator as claimed in claim 21 wherein said tunable laser medium is arranged in such that an end plane of incidence thereof has been Brewster cut, and said end plane of incidence is disposed at Brewster angle with respect to an optical path in said laser resonator.
25. An ultrashort pulse laser oscillator as claimed in claim 22 wherein said tunable laser medium is arranged in such that an end plane of incidence thereof has been Brewster cut, and said end plane of incidence is disposed at Brewster angle with respect to an optical path in said laser resonator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method of assisting in the design of a vehicular suspension to generate a simulation model for a suspension using a CAD system, comprising the steps of:
indicating a suspension to be designed;
opening a specification value entering window for entering specification values inherent in the indicated suspension;
entering specification values at definition points inherent in the indicated suspension in said specification value entering window; and
generating a simulation model based on the specification values at the definition points.
2. The method of assisting in the design of a vehicular suspension according to claim 1, further comprising the steps of:
opening a first analytic window for displaying a first analytic model of the selected suspension and definition points thereof;
opening a second analytic window for displaying a second analytic model of the selected suspension and definition points thereof; and
entering specification values on at least one of said first analytic model and said second analytic model.
3. The method of assisting in the design of a vehicular suspension according to claim 1, further comprising the step of reflecting the entered definition points in the other windows when the definition points are entered in either one of said specification value entering window, said first analytic window, and said second analytic window.
4. The method of assisting in the design of a vehicular suspension according to claim 2, further comprising the step of reflecting the entered definition points in the other windows when the definition points are entered in either one of said specification value entering window, said first analytic window, and said second analytic window.
5. The method of assisting in the design of a vehicular suspension according to claim 1, wherein the step of indicating further comprises the step of indicating the drive system of a vehicle to which the suspension is applied.
6. The method of assisting in the design of a vehicular suspension according to claim 5, wherein said step of opening further comprises the steps of:
entering three-dimensional coordinates as specification values at predetermined definition points of a three-dimensional model; and
entering the lengths and angles of mechanisms of the selected suspension as specification values.
7. The m ethod of assisting in the design of a vehicular suspension according to claim 2, wherein said step of opening the first analytic window further comprises the steps of:
opening an interference analytic model; and
analyzing whether there is an interference between various parts of the selected suspension.
8. The method of assisting in the design of a vehicular suspension according to claim 7, wherein said step of opening the second analytic window further comprises the steps of:
opening a dynamic characteristic analytic model; and
displaying compression and expansion strokes of front and rear wheels, and strokes of the front and rear wheels when the vehicle is occupied by passengers and not occupied by passengers.
9. An apparatus for assisting in the design of a vehicular suspension to generate a simulation model for a suspension using a CAD system, comprising:
means for indicating a suspension to be designed;
means for opening a specification value entering window for entering specification values inherent in the indicated suspension;
means for entering specification values at definition points inherent in the indicated suspension in said specification value entering window; and
means for generating a simulation model based on the specification values at the definition points.
10. The apparatus for assisting in the design of a vehicular suspension according to claim 9, further comprising:
means for opening a first analytic window for displaying a first analytic model of the selected suspension and definition points thereof;
means for opening a second analytic window for displaying a second analytic model of the selected suspension and definition points thereof; and
means for entering specification values on at least one of said first analytic model and said second analytic model.
11. The apparatus for assisting in the design of a vehicular suspension according to claim 9, further comprising means for reflecting the entered definition points in the other windows when the definition points are entered in either one of said specification value entering window, said first analytic window, and said second analytic window.
12. The apparatus for assisting in the design of a vehicular suspension according to claim 10, further comprising means for reflecting the entered definition points in the other windows when the definition points are entered in either one of said specification value entering window, said first analytic window, and said second analytic window.
13. The apparatus for assisting in the design of a vehicular suspension according to claim 9, wherein said means for indicating further comprises means for indicating the drive system of a vehicle to which the suspension is applied.
14. The apparatus for assisting in the design of a vehicular suspension according to claim 13, wherein said means for opening further comprises:
means for entering three-dimensional coordinates as specification values at predetermined definition points of a three-dimensional model; and
means for entering the lengths and angles of mechanisms of the selected suspension as specification values.
15. The apparatus for assisting in the design of a vehicular suspension according to claim 10, wherein said means for opening the first analytic window further comprises:
means for opening an interference analytic model; and
means for analyzing whether there is an interference between various parts of the selected suspension.
16. The apparatus for assisting in the design of a vehicular suspension according to claim 5, wherein said means for opening the second analytic window further comprises:
means for opening a dynamic characteristic analytic model; and
means for displaying compression and expansion strokes of front and rear wheels, and strokes of the front and rear wheels when the vehicle is occupied by passengers and not occupied by passengers.