Large-field of view, high-resolution broadband objective lens

A large-field of view, high-resolution broadband objective lens, wherein the objective lens comprises nineteen spherical lenses that are arranged on the same optical axis, and the nineteen lenses sequentially comprise, from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, a twelfth lens, a thirteenth lens, a fourteenth lens, a fifteenth lens, a sixteenth lens, a seventeenth lens, an eighteenth lens and a nineteenth lens, wherein,

• the first lens and the second lens are combined to form a cemented lens, wherein the surface of the first lens facing the object side is a concave surface and the surface thereof facing the image side is a concave surface, the surface of the second lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface, and the concave surface of the first lens facing the image side and the convex surface of the second lens facing the object side are cemented together;
• the third lens, the fourth lens and the fifth lens are combined to form a cemented lens, wherein the surface of the third lens facing the object side is a concave surface and the surface thereof facing the image side is a convex surface, the surface of the fourth lens facing the object side is a concave surface and the surface thereof facing the image side is a planar surface, the surface of the fifth lens facing the object side is a planar surface and the surface thereof facing the image side is a convex surface, the convex surface of the third lens facing the image side and the concave surface of the fourth lens facing the object side are cemented together, and the planar surface of the fourth lens facing the image side and the planar surface of the fifth lens facing the object side are cemented together;
• the surface of the sixth lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface;
• the seventh lens and the eighth lens are combined to form a cemented lens, wherein the surface of the seventh lens facing the object side is a convex surface and the surface thereof facing the image side is a concave surface, the surface of the eighth lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface, and the concave surface of the seventh lens facing the image side and the convex surface of the eighth lens facing the object side are cemented together;
• the ninth lens, the tenth lens and the eleventh lens are combined to form a cemented lens, wherein the surface of the ninth lens facing the object side is a convex surface and the surface thereof facing the image side is a planar surface, the surface of the tenth lens facing the object side is a planar surface and the surface thereof facing the image side is a concave surface, the surface of the eleventh lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface, the planar surface of the ninth lens facing the image side and the planar surface of the tenth lens facing the object side are cemented together, and the concave surface of the tenth lens facing the image side and the convex surface of the eleventh lens facing the object side are cemented together;
• the twelfth lens and the thirteenth lens are combined to form a cemented lens, wherein the surface of the twelfth lens facing the object side is a convex surface and the surface thereof facing the image side is a concave surface, the surface of the thirteenth lens facing the object side is a convex surface and the surface thereof facing the image side is a concave surface, and the concave surface of the twelfth lens facing the image side and the convex surface of the thirteenth lens facing the object side are cemented together;
• the fourteenth lens and the fifteenth lens are combined to form a cemented lens, wherein the surface of the fourteenth lens facing the object side is a concave surface and the surface thereof facing the image side is a concave surface, the surface of the fifteenth lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface, and the concave surface of the fourteenth lens facing the image side and the convex surface of the fifteenth lens facing the object side are cemented together;
• the surface of the sixteenth lens facing the object side is a concave surface and the surface thereof facing the image side is a convex surface;
• the seventeenth lens and the eighteenth lens are combined to form a cemented lens, wherein the surface of the seventeenth lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface, the surface of the eighteenth lens facing the object side is a concave surface and the surface thereof facing the image side is a concave surface, and the convex surface of the seventeenth lens facing the image side and the concave surface of the eighteenth lens facing the object side are cemented together;
• and
• the surface of the nineteenth lens facing the object side is a convex surface and the surface thereof facing the image side is a convex surface;
• wherein, the concave surface of the first lens facing the object side is a first lens surface, the surface where the first lens and the second lens are cemented together is a second lens surface, the convex surface of the second lens facing the image side is a third lens surface, the concave surface of the third lens facing the object side is a fourth lens surface, the surface where the third lens and the fourth lens are cemented together is a fifth lens surface, the surface where the fourth lens and the fifth lens are cemented together is a sixth lens surface, the convex surface of the fifth lens facing the image side is a seventh lens surface, the convex surface of the sixth lens facing the object side is an eighth lens surface, the convex surface of the sixth lens facing the image side is a ninth lens surface, the convex surface of the seventh lens facing the object side is a tenth lens surface, the surface where the seventh lens and the eighth lens are cemented together is an eleventh lens surface, the convex surface of the eighth lens facing the image side is a twelfth lens surface, the convex surface of the ninth lens facing the object side is a thirteenth lens surface, the surface where the ninth lens and the tenth lens are cemented together is a fourteenth lens surface, the surface where the tenth lens and the eleventh lens are cemented together is a fifteenth lens surface, the convex surface of the eleventh lens facing the image side is a sixteenth lens surface, the convex surface of the twelfth lens facing the object side is a seventeenth lens surface, the surface where the twelfth lens and the thirteenth lens are cemented together is an eighteenth lens surface, the concave surface of the thirteenth lens facing the image side is a nineteenth lens surface, the concave surface of the fourteenth lens facing the object side is a twentieth lens surface, the surface where the fourteenth lens and the fifteenth lens are cemented together is a twenty-first lens surface, the convex surface of the fifteenth lens facing the image side is a twenty-second lens surface, the concave surface of the sixteenth lens facing the object side is a twenty-third lens surface, the convex surface of the sixteenth lens facing the image side is a twenty-fourth lens surface, the convex surface of the seventeenth lens facing the object side is a twenty-fifth lens surface, the surface where the seventeenth lens and the eighteenth lens are cemented together is a twenty-sixth lens surface, the concave surface of the eighteenth lens facing the image side is a twenty-seventh lens surface, the convex surface of the nineteenth lens facing the object side is a twenty-eighth lens surface, and the convex surface of the nineteenth lens facing the image side is a twenty-ninth lens surface;
• wherein, the parameters of the first lens surface comprise R1=−10.834 to −10.098 mm, D1=6.673 to 6.921 mm, and φ1=12.145 to 13.514 mm, where R1 is the radius of curvature of the first lens surface, D1 is the lens surface distance of the first lens surface, and φ1 is the effective clear aperture of the first lens surface;
• the parameters of the second lens surface comprise R2=44.389 to 46.237 mm, D2=15.786 to 16.234 mm, and φ2=23.597 to 24.415 mm, where R2 is the radius of curvature of the second lens surface, D2 is the lens surface distance of the second lens surface, and φ2 is the effective clear aperture of the second lens surface;
• the parameters of the third lens surface comprise R3=−31.457 to −29.467 mm, D3=0.125 to 0.231 mm, and φ3=33.856 to 34.915 mm, where R3 is the radius of curvature of the third lens surface, D3 is the lens surface distance of the third lens surface, and φ3 is the effective clear aperture of the third lens surface;
• the parameters of the fourth lens surface comprise R4=−118.657 to −114.324 mm, D4=9.324 to 9.639 mm, and φ4=38.467 to 40.125 mm, where R4 is the radius of curvature of the fourth lens surface, D4 is the lens surface distance of the fourth lens surface, and φ4 is the effective clear aperture of the fourth lens surface;
• the parameters of the fifth lens surface comprise R5=−37.541 to −34.654 mm, D5=6.042 to 6.203 mm, and φ5=41.921 to 43.015 mm, where R5 is the radius of curvature of the fifth lens surface, D5 is the lens surface distance of the fifth lens surface, and φ5 is the effective clear aperture of the fifth lens surface;
• the parameters of the sixth lens surface comprise R6=∞, D6=13.658 to 14.132 mm, and 06=49.687 to 51.032 mm, where R6 is the radius of curvature of the sixth lens surface, D6 is the lens surface distance of the sixth lens surface, and φ6 is the effective clear aperture of the sixth lens surface;
• the parameters of the seventh lens surface comprise R7=−67.671 to −64.321 mm, D7=7.825 to 8.214 mm, and φ7=54.598 to 55.127 mm, where R7 is the radius of curvature of the seventh lens surface, D7 is the lens surface distance of the seventh lens surface, and φ7 is the effective clear aperture of the seventh lens surface;
• the parameters of the eighth lens surface comprise R8=124.982 to 130.475 mm, D8=24.658 to 25.479 mm, and φ8=63.985 to 64.125 mm, where R8 is the radius of curvature of the eighth lens surface, D8 is the lens surface distance of the eighth lens surface, and φ8 is the effective clear aperture of the eighth lens surface;
• the parameters of the ninth lens surface comprise R9=−75.984 to −73.411 mm, D9=0.265 to 0.478 mm, and φ9=64.934 to 65.984 mm, where R9 is the radius of curvature of the ninth lens surface, D9 is the lens surface distance of the ninth lens surface, and φ9 is the effective clear aperture of the ninth lens surface;
• the parameters of the tenth lens surface comprise R10=308.458 to 315.541 mm, D10=6.475 to 6.632 mm, and φ10=62.798 to 63.327 mm, where R10 is the radius of curvature of the tenth lens surface, D10 is the lens surface distance of the tenth lens surface, and φ10 is the effective clear aperture of the tenth lens surface;
• the parameters of the eleventh lens surface comprise R11=38.645 to 44.654 mm, D11=18.764 to 19.241 mm, and φ11=59.024 to 60.147 mm, where R11 is the radius of curvature of the eleventh lens surface, D11 is the lens surface distance of the eleventh lens surface, and φ11 is the effective clear aperture of the eleventh lens surface;
• the parameters of the twelfth lens surface comprise R12=−328.455 to −317.951 mm, D12=3.074 to 4.021 mm, and φ12=59.312 to 60.147 mm, where R12 is the radius of curvature of the twelfth lens surface, D12 is the lens surface distance of the twelfth lens surface, and φ12 is the effective clear aperture of the twelfth lens surface;
• the parameters of the thirteenth lens surface comprise R13=43.217 to 46.398 mm, D13=15.846 to 16.352 mm, and φ13=58.498 to 59.214 mm, where R13 is the radius of curvature of the thirteenth lens surface, D13 is the lens surface distance of the thirteenth lens surface, and φ13 is the effective clear aperture of the thirteenth lens surface;
• the parameters of the fourteenth lens surface comprise R14=∞, D14=6.045 to 6.134 mm, and φ14=56.413 to 57.041 mm, where R14 is the radius of curvature of the fourteenth lens surface, D14 is the lens surface distance of the fourteenth lens surface, and φ14 is the effective clear aperture of the fourteenth lens surface;
• the parameters of the fifteenth lens surface comprise R15=41.657 to 48.691 mm, D15=15.231 to 16.098 mm, and φ15=49.547 to 50.412 mm, where R15 is the radius of curvature of the fifteenth lens surface, D15 is the lens surface distance of the fifteenth lens surface, and φ15 is the effective clear aperture of the fifteenth lens surface;
• the parameters of the sixteenth lens surface comprise R16=−163.485 to −158.547 mm, D16=3.987 to 4.021 mm, and φ16=49.134 to 50.145 mm, where R16 is the radius of curvature of the sixteenth lens surface, D16 is the lens surface distance of the sixteenth lens surface, and φ16 is the effective clear aperture of the sixteenth lens surface;
• the parameters of the seventeenth lens surface comprise R17=38.468 to 44.651 mm, D17=10.046 to 10.541 mm, and φ17=40.165 to 40.941 mm, where R17 is the radius of curvature of the seventeenth lens surface, D17 is the lens surface distance of the seventeenth lens surface, and φ17 is the effective clear aperture of the seventeenth lens surface;
• the parameters of the eighteenth lens surface comprise R18=60.134 to 71.347 mm, D18=3.647 to 4.067 mm, and φ18=35.145 to 35.654 mm, where R18 is the radius of curvature of the eighteenth lens surface, D18 is the lens surface distance of the eighteenth lens surface, and φ18 is the effective clear aperture of the eighteenth lens surface;
• the parameters of the nineteenth lens surface comprise R19=26.547 to 32.541 mm, D19=18.034 to 19.654 mm, and φ19=29.132 to 29.984 mm, where R19 is the radius of curvature of the nineteenth lens surface, D19 is the lens surface distance of the nineteenth lens surface, and φ19 is the effective clear aperture of the nineteenth lens surface;
• the parameters of the twentieth lens surface comprise R20=−29.451 to −32.475 mm, D20=2.458 to 4.425 mm, and φ20=26.123 to 26.841 mm, where R20 is the radius of curvature of the twentieth lens surface, D20 is the lens surface distance of the twentieth lens surface, and φ20 is the effective clear aperture of the twentieth lens surface;
• the parameters of the twenty-first lens surface comprise R21=45.374 to 49.324 mm, D21=22.348 to 25.487 mm, and φ21=30.546 to 30.987 mm, where R21 is the radius of curvature of the twenty-first lens surface, D21 is the lens surface distance of the twenty-first lens surface, and φ21 is the effective clear aperture of the twenty-first lens surface;
• the parameters of the twenty-second lens surface comprise R22=−75.341 to −66.874 mm, D22=26.784 to 29.541 mm, and φ22=40.568 to 41.025 mm, where R22 is the radius of curvature of the twenty-second lens surface, D22 is the lens surface distance of the twenty-second lens surface, and φ22 is the effective clear aperture of the twenty-second lens surface;
• the parameters of the twenty-third lens surface comprise R23=−592.657 to −554.654 mm, D23=9.849 to 10.244 mm, and φ23=56.154 to 56.987 mm, where R23 is the radius of curvature of the twenty-third lens surface, D23 is the lens surface distance of the twenty-third lens surface, and φ23 is the effective clear aperture of the twenty-third lens surface;
• the parameters of the twenty-fourth lens surface comprise R24=−89.354 to −85.214 mm, D24=0.178 to 0.211 mm, and φ24=58.324 to 59.016 mm, where R24 is the radius of curvature of the twenty-fourth lens surface, D24 is the lens surface distance of the twenty-fourth lens surface, and φ24 is the effective clear aperture of the twenty-fourth lens surface;
• the parameters of the twenty-fifth lens surface comprise R25=244.534 to 251.541 mm, D25=9.047 to 10.231 mm, and φ25=58.314 to 59.154 mm, where R25 is the radius of curvature of the twenty-fifth lens surface, D25 is the lens surface distance of the twenty-fifth lens surface, and φ25 is the effective clear aperture of the twenty-fifth lens surface;
• the parameters of the twenty-sixth lens surface comprise R26=−141.354 to −136.214 mm, D26=9.475 to 11.347 mm, and φ26=57.987 to 59.015 mm, where R26 is the radius of curvature of the twenty-sixth lens surface, D26 is the lens surface distance of the twenty-sixth lens surface, and φ26 is the effective clear aperture of the twenty-sixth lens surface;
• the parameters of the twenty-seventh lens surface comprise R27=84.394 to 87.398 mm, D27=44.674 to 50.379 mm, and φ27=56.124 to 57.621 mm, where R27 is the radius of curvature of the twenty-seventh lens surface, D27 is the lens surface distance of the twenty-seventh lens surface, and φ27 is the effective clear aperture of the twenty-seventh lens surface;
• the parameters of the twenty-eighth lens surface comprise R28=132.437 to 136.124 mm, D28=10.754 to 11.314 mm, and φ28=65.564 to 66.314 mm, where R28 is the radius of curvature of the twenty-eighth lens surface, D28 is the lens surface distance of the twenty-eighth lens surface, and φ28 is the effective clear aperture of the twenty-eighth lens surface;
• and
• the parameters of the twenty-ninth lens surface comprise R29=−326.154 to −317.645 mm, D29=123.457 to 134.637 mm, and φ29=65.324 to 66.654 mm, where R29 is the radius of curvature of the twenty-ninth lens surface, D29 is the lens surface distance of the twenty-ninth lens surface, and φ29 is the effective clear aperture of the twenty-ninth lens surface;
• wherein the objective lens satisfies:
• 2×108≤SBP<1.08×109, where the SBP denotes the imaging throughput of the objective lens, SBP=2×(FOV/rxy)2, and the rxy denotes the lateral resolution of the objective lens.