1. A Rehabilitation Device for Legs comprises,
a base piece;
a foot piece;
a slider;
a plurality of stopper pegs;
the base piece comprises of a plurality of track rails, a top surface, a bottom surface, and a plurality of holes with number labeling;
the foot piece comprises of a foot rest, a support piece, a heel support, a hook, an elastic band, and a plurality of track runners;
the foot piece and the slider are positioned on top of the plurality of track rails;
the plurality of stopper pegs comprises a top cylinder and a bottom cylinder;
the top cylinder being of larger diameter than the bottom cylinder;
the bottom cylinder is capable of being positioned inside each one of the plurality of holes with number labeling;
the top cylinder being exposed above the top surface; and
the top cylinder being the same height as the slider.
2. The Rehabilitation Device for Legs as claimed in claim 1 comprises,
the plurality of track rails comprises of a left groove and a right groove;
the plurality of track rails being positioned on the top surface of the base piece;
the plurality of track rails being parallel to each other; and
the plurality of track rails being a length of the base piece.
3. The Rehabilitation Device for Legs as claimed in claim 2 comprises,
the left groove and the right groove being located on the plurality of track rails; and
the left groove and the right groove being cavities cutting into the plurality of track rails.
4. The Rehabilitation Device for Legs as claimed in claim 2 comprises,
a plurality of track runners and a bridge piece being positioned on top of the plurality of track rails;
the plurality of track runners and the bridge piece being slid into the left groove and the right groove; and
the slider being positioned in front of the foot piece.
5. The Rehabilitation Device for Legs as claimed in claim 1 comprises,
the foot rest being positioned in front of the support piece;
the foot rest being taller than the support piece;
the foot rest being angled above the support piece;
the foot rest being reinforced by the support piece;
the heel support being positioned in front of the foot rest; and
the plurality of track runners being attached underneath the foot piece.
6. The Rehabilitation Device for Legs as claimed in claim 5 comprises,
the hook being positioned behind the foot rest and above the support piece;
the elastic band being wrapped around the foot rest and in the hook.
7. The Rehabilitation Device for Legs as claimed in claim 1 comprises,
the bottom surface comprises of a bottom cavity;
the bottom cavity being parallel to the plurality of track rails;
the bottom cavity being positioned in between the plurality of track rails; and
the bottom surface being coarsely textured.
8. The Rehabilitation Device for Legs as claimed in claim 7 comprises,
the plurality of holes with number labeling being located on the top surface and above the bottom cavity; and
the plurality of holes with number labeling being circular holes.
9. The Rehabilitation Device for Legs as claimed in claim 1 comprises,
the slider comprises of a plurality of track pieces and a bridge piece; and
the plurality of tracks pieces being connected by the bridge piece.
10. A Rehabilitation Device for Legs comprises,
a base piece;
a foot piece;
a slider;
a plurality of stopper pegs;
the base piece comprises of a plurality of track rails, a top surface, a bottom surface, and a plurality of holes with number labeling;
the foot piece comprises of a foot rest, a support piece, a heel support, a hook, an elastic band, and a plurality of track runners;
the foot piece and the slider are positioned on top of the plurality of track rails;
the plurality of track rails comprises of a left groove and a right groove;
the plurality of track rails being positioned on the top surface of the base piece;
the plurality of track rails being parallel to each other;
the plurality of track rails being a length of the base piece;
the foot rest being positioned in front of the support piece;
the foot rest being taller than the support piece;
the foot rest being angled above the support piece;
the foot rest being reinforced by the support piece;
the heel support being positioned in front of the foot rest;
the plurality of track runners being attached underneath the foot piece;
the slider comprises of a plurality of track pieces and a bridge piece;
the plurality of tracks pieces being connected by the bridge piece;
the bottom surface comprises of a bottom cavity;
the bottom cavity being parallel to the plurality of track rails;
the bottom cavity being positioned in between the plurality of track rails; and
the bottom surface being coarsely textured.
11. The Rehabilitation Device for Legs as claimed in claim 10 comprises,
the plurality of holes with number labeling being located on the top surface and above the bottom cavity; and
the plurality of holes with number labeling being circular holes.
12. The Rehabilitation Device for Legs as claimed in claim 11 comprises,
the plurality of stopper pegs comprises a top cylinder and a bottom cylinder;
the top cylinder being of larger diameter than the bottom cylinder;
the bottom cylinder is capable of being positioned inside each one of the plurality of holes with number labeling;
the top cylinder being exposed above the top surface; and
the top cylinder being the same height as the slider.
13. The Rehabilitation Device for Legs as claimed in claim 10 comprises,
the left groove and the right groove being located on the plurality of track rails; and
the left groove and the right groove being cavities cutting into the plurality of track rails.
14. The Rehabilitation Device for Legs as claimed in claim 10 comprises,
the plurality of track runners and the bridge piece being positioned on top of the plurality of track rails;
the plurality of track runners and the bridge piece being slid into the left groove and the right groove; and
the slider being position in front of the piece.
15. The Rehabilitation Device for Legs as claimed in claim 10 comprises,
the hook being positioned behind the foot rest and above the support piece; and
the elastic band being wrapped around the foot rest and in the hook.
16. A Rehabilitation Device for Legs comprises,
a base piece;
a foot piece;
a slider;
a plurality of stopper pegs;
the base piece comprises of a plurality of track rails, a top surface, a bottom surface, and a plurality of holes with number labeling;
the foot piece comprises of a foot rest, a support piece, a heel support, a hook, an elastic band, and a plurality of track runners;
the foot piece and the slider are positioned on top of the plurality of track rails;
the plurality of track rails comprises of a left groove and a right groove;
the plurality of track rails being positioned on the top surface of the base piece;
the plurality of track rails being parallel to each other;
the plurality of track rails being a length of the base piece;
the foot rest being positioned in front of the support piece;
the foot rest being taller than the support piece;
the foot rest being angled above the support piece;
the foot rest being reinforced by the support piece;
the heel support being positioned in front of the foot rest;
the plurality of track runners being attached underneath the foot piece;
the slider comprises of a plurality of track pieces and a bridge piece;
the plurality of tracks pieces being connected by the bridge piece;
the bottom surface comprises of a bottom cavity;
the bottom cavity being parallel to the plurality of track rails;
the bottom cavity being positioned in between the plurality of track rails;
the bottom surface being coarsely textured;
the top cylinder being of larger diameter than the bottom cylinder;
the bottom cylinder is capable of being positioned inside each one of the plurality of holes with number labeling;
the top cylinder being exposed above the top surface; and
the top cylinder being the same height as the slider.
17. The Rehabilitation Device for Legs as claimed in claim 16 comprises,
the left groove and the right groove being located on the plurality of track rails;
the left groove and the right groove being cavities cutting into the plurality of track rails;
the plurality of track runners and the bridge piece being positioned on top of the plurality of track rails;
the plurality of track runners and the bridge piece being slid into the left groove and the right groove; and
the slider being positioned in front of the foot piece.
18. The Rehabilitation Device for Legs as claimed in claim 16 comprises,
the hook being positioned behind the foot rest and above the support piece;
the elastic band being wrapped around the foot rest and in the hook;
the plurality of holes with number labeling being located on the top surface and above the bottom cavity;
the plurality of holes with number labeling being circular holes; and
the plurality of stopper pegs comprises a top cylinder and a bottom cylinder.
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. A laser device comprising:
a pump source;
a ring resonator;
a gain medium disposed in the ring resonator, the gain medium configured to receive radiation from the pump source and generate laser radiation; and
a holographic output coupler to partially transmit the laser radiation.
2. The laser device of claim 1 wherein the holographic output coupler is a thick Bragg grating element.
3. The laser device of claim 1 wherein the holographic output coupler is a narrow-band, reflective thick Bragg grating element.
4. The laser device of claim 1 wherein the holographic output coupler is configured to operate away from normal incidence at an angle of less than 10 degrees.
5. The laser device of claim 1 further comprising an optical diode disposed within the ring resonator to cause unidirectional propagation of the laser radiation.
6. The laser device of claim 5 wherein the optical diode comprises a Faraday rotator and a half-wave plate.
7. The laser device of claim 1 further comprising a Q-switch disposed within the ring resonator.
8. The laser device of claim 7 wherein the Q-switch is a passive Q-switch.
9. The laser device of claim 7 wherein the Q-switch is a saturable absorber acting as a slow-opening passive Q-switch.
10. The laser device of claim 9 wherein the Q-switch is adapted to provide single-frequency operation in a spectral window defined by the holographic output coupler, which is a holographic Bragg grating element.
11. The laser device of claim 1 wherein the gain medium is solid state.
12. The laser device of claim 1 wherein the gain medium is an active laser medium.
13. The laser device of claim 1 wherein the gain medium is a nonlinear medium and the holographic output coupler is configured to operate away from normal incidence at an angle of less than 10 degrees.
14. The laser device of claim 1 wherein the gain medium is at least one of a holmium-doped material, a thulium-doped material, an erbium-doped material, a ytterbium-erbium doped material, a ytterbium-doped material, a neodymium-doped material, a Cr4+-doped material, a titanium-doped sapphire material, a ruby material or an alexandrite material.
15. The laser device of claim 1 wherein the gain medium is a holmium-doped material or a thulium-doped material and the saturable absorber is Cr2+-doped material.
16. The laser device of claim 1 wherein the gain medium is an erbium-doped material or a ytterbium-erbium doped material and the saturable absorber is a Cr2+- or Co2+- or V3+-doped material.
17. The laser device of claim 1 wherein the gain medium is a ytterbium-doped material or a neodymium-doped material and the saturable absorber is a Cr4+- or V3+-doped material or LiF:F2\u2212 color center material.
18. The laser device of claim 1 wherein the gain medium is a Cr4+-doped material and the saturable absorber is V3+-doped material.
19. The laser device of claim 1 wherein the gain medium is a titanium-doped sapphire material and the saturable absorber is a LiF:F2\u2212 or LiF:F2+ color center material.
20. The laser device of claim 13 wherein the non-linear medium includes LBO, BBO, KTP or KTA crystals, periodically-poled LN, LT, KTP or RTP materials, or optically patterned GaAs materials.
21. A laser device comprising:
a pump source;
a ring resonator;
a gain medium disposed in the ring resonator, the gain medium configured to receive radiation from the pump source and generate laser radiation; and
a holographic high reflector.
22. The laser device of claim 21 wherein the holographic high reflector is a thick Bragg grating element.
23. The laser device of claim 21 wherein the holographic high reflector is a narrow-band, reflective thick Bragg grating element.
24. The laser device of claim 21 wherein the holographic high reflector is configured to operate away from normal incidence at an angle of less than 10 degrees.