1. An optical pickup, comprising:
a semiconductor laser diode;
electro-optic parts; and
an objective lens actuator in a case, wherein
said objective lens actuator comprises:
a holder, which mounts an objective lens and a coil thereon, as being a movable part;
a magnetic circuit part, which is made up with a magnet for magnetically driving said holder and a yoke;
a plural number of elastic support parts which elastically supports said holder; and
a support part, which supports other ends of said elastic support parts; wherein
said support part has a part, which is cut open in parallel with the elastic support parts, between said elastic support parts, and has a through hole, in which said elastic support part passes through for each of said elastic support parts, and a hole is provided on said support part, so as to be inserted with a projection part, which is provided on said case; and
said hole on said support part, which is to be inserted with said projection part of said case so as to establish a connection when said projection part is inserted, is larger than said projection part of said case, and a damper part is within a qap defined between said hole and said projection part.
2. The optical pickup, as described in the claim 1, wherein the cut-open part of said support part has a long side in an axial direction of said elastic support part.
3. The optical pickup, as described in the claim 1, wherein a thin wall part is provided at the cut-open part of said support part.
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 fluorescent mixture comprising:
(Sr,Ca,Ba,Mg)5(PO4)3Cl:Eu2+(SCA) present in an amount of about 45 to about 50 wt %;
Y2O3:Eu3+(YOX) present in an amount of about 29 to about 33 wt %; and
a green fluorescent having a main green fluorescent and at least one sub green fluorescent, wherein the sum of the main green fluorescent and the at least one sub green fluorescent is present in an amount of about 20 to about 26 wt %.
2. The fluorescent mixture of claim 1, wherein the main green fluorescent comprises BaMgAl10O17:Eu2+, Mn2+(BAM:Mn).
3. The fluorescent mixture of claim 2, wherein the at least one sub green fluorescent comprises one of (Ce,Mg,Zn)Al11O19:Mn2+(CMZ) and LaPO4:Ce3+,Tb3+(LAP).
4. The fluorescent mixture of claim 2, wherein the at least one sub green fluorescent comprises (Ce,Mg,Zn)Al11O19:Mn2+(CMZ) and LaPO4:Ce3+,Tb3+(LAP).
5. A fluorescent lamp comprising:
a lamp body having a discharge space in which ultraviolet light is generated;
a fluorescent layer formed on an inner surface of the lamp body to change the ultraviolet light into visible light, the fluorescent layer including a fluorescent mixture comprising (Sr,Ca,Ba,Mg)5(PO4)3Cl:Eu2+(SCA) present in an amount of about 45 to about 50 wt %, Y2O3:Eu3+(YOX) present in an amount of about 29 to about 33 wt % and a green fluorescent having a main green fluorescent and at least one sub green fluorescent, wherein the sum of the main green fluorescent and the at least one sub green fluorescent is present in an amount of about 20 to about 26 wt %; and
a discharge electrode on an end portion of the lamp body to apply a voltage to the discharge space.
6. The fluorescent lamp of claim 5, wherein the main green fluorescent comprises BaMgAl10O17:Eu2+,Mn2\xb1(BAM:Mn).
7. The fluorescent lamp of claim 6, wherein the at least one sub green fluorescent comprises one of (Ce,Mg,Zn)Al11O19:Mn2+(CMZ) and LaPO4:Ce3+, Tb3+(LAP).
8. The fluorescent lamp of claim 6,
wherein the at least one sub green fluorescent comprises (Ce,Mg,Zn)Al11O19:Mn2+(CMZ) and LaPO4:Ce3+, Tb3+(LAP).
9. The fluorescent lamp of claim 8, wherein the BAM:Mn is present in an amount of about 65 to about 85 wt %, the LAP is present in an amount of about 10 to about 20 wt %, the CMZ is present in an amount of about 5 to about 15 wt % among the sum of the main green fluorescent and the at least one sub green fluorescent.
10. The fluorescent lamp of claim 8, wherein the BAM:Mn is present in an amount of about 75 wt %, the LAP is present in an amount of about 15 wt %, the CMZ is present in an amount of about 10 wt % among the sum of the main green fluorescent and the at least one sub green fluorescent.