Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
A spatial light modulator which performs recording and read-out of an optical image through utilization of photoconductivity and electro-optic effect of a single-crystal of a sillenite type crystal structure, characterized by: a low dark resistance single-crystal plate of a sillenite structure having a low dark resistivity by impurity doping; a high dark resistance layer provided on the light incident side of said low dark resistance single-crystal plate and higher in dark resistivity than said low dark resistance single-crystal plate, having sillenite structure lattice-matched to said low dark resistance single-crystal plate; an insulating layer provided on the other side of said high dark resistance layer; and transparent electrodes provided on the other side of said high dark resistance layer; and transparent electrodes provided on the other side of said low dark resistance single-crystal plate and said insulating layer.
Claim 2
Dependent Claim
137 words
A spatial light modulator which performs recording and read-out of an optical image through utilization of photoconductivity and electro-optic effect of a single-crystal of a sillenite type crystal structure, characterized by: a low dark resistance single-crystal plate of a sillenite structure having a low dark resistivity by impurity doping; a high dark resistance layer provided on the light incident side of said low dark resistance single-crystal plate and higher in dark resistivity than said low dark resistance single-crystal plate, having sillenite structure lattice-matched to said low dark resistance single-crystal plate; an insulating layer provided on the other side of said high dark resistance layer; and transparent electrodes provided on the other side of said high dark resistance layer; and transparent electrodes provided on the other side of said low dark resistance single-crystal plate and said insulating layer.
Claim 3
Dependent Claim
30 words
A spatial light modulator according to claim 1, characterized in that said high dark resistance layer is formed of Bi 12 MO 20 (where M is Si, Ge, or Ti).
Claim 4
Dependent Claim
38 words
A spatial light modulator according to claim 1, characterized in that said low resistance single-crystal plate is formed of a crystal of Bi 10 MO 20 (where M is Si, Ge, or Ti) doped with a pentavalent element.
Claim 5
Dependent Claim
27 words
A spatial light modulator device according to claim 3, characterized in that said pentavalent element is at least one of phosphorus (P), antimony (Sb) and niobium (Nb).
Claim 6
Dependent Claim
40 words
A spatial light modulator according to claim 3, characterized in that said low dark resistance single-crystal plate is formed of said Bi 12 MO 20 doped with phosphorus (P) in the concentration range of between 0.03 and 0.2 atm %.
Claim 7
Dependent Claim
21 words
A spatial light modulator according to claim 1, characterzied in that said low dark resistance single-crystal plate has a tapered shape.
Claim 8
Dependent Claim
28 words
A spatial light modulator according to claim 1, characterized in that said high dark resistance layer is formed of Bi 12 MO 20 (where M=Si, Ge, or Ti).
Claim 9
Dependent Claim
39 words
A spatial light modulator according to claim 6, characterized in that said low dark resistance single-crystal plate is formed of a crystal of Bi 10 MO 20 (where M is Si, Ge, or Ti) doped with a pentavalent element.
Claim 10
Dependent Claim
26 words
A spatial light modulator according to claim 8, characterized in that said pentavalent element is at least one of phosphorus (P), antimony (Sb) and niobium (Nb).
Claim 11
Dependent Claim
40 words
A spatial light modulator according to claim 8, characterized in that said low dark resistance single-crystal plate is formed of said Bi 12 MO 20 doped with phosphorus (P) in the concentration range of between 0.03 and 0.2 atm %.