Optical lens and imaging apparatus
An optical lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of high cost of glass aspheric lens, lower lens temperature performance, limited installation space, etc., achieve high resolution, reduce radial volume, The effect of shortening the optical length
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no. 1 example
[0093] Such as figure 1As shown, the optical lens according to the first embodiment of the present invention includes in sequence from the object side to the image side: a meniscus-shaped first lens L1 with negative refractive power, a first surface S1 convex to the object side and a concave first surface S1 The second surface S2 on the image side, and the first lens L1 is a glass aspheric lens; the meniscus-shaped second lens L2 with negative power has a first surface S3 convex to the object side and concave to the image side The second surface S4 of the second surface S4; the meniscus-shaped third lens L3 with positive refractive power, with the first surface S5 concave to the object side and the second surface S6 convex to the image side; the stop STO; the fourth lens glued to each other Lens L4 and the fifth lens L5, wherein the fourth lens L4 is a biconvex shape with positive refractive power, has a first surface S8 convex to the object side and a second surface S9 convex...
no. 2 example
[0107] Such as figure 2 As shown, the optical lens according to the second embodiment of the present invention includes in sequence from the object side to the image side: a meniscus-shaped first lens L1 with negative power, a first surface S1 convex to the object side and a concave first surface S1 The second surface S2 on the image side, and the first lens L1 is a glass aspheric lens; the second lens L2 of a biconcave shape with negative power has a first surface S3 that is concave toward the object side and is concave toward the image side The second surface S4 of the second surface S4; the third lens L3 of biconvex shape with positive refractive power, has the first surface S5 convex to the object side and the second surface S6 convex to the image side; the diaphragm STO; the fourth lens L3 glued to each other Lens L4 and the fifth lens L5, wherein the fourth lens L4 is a biconvex shape with positive refractive power, has a first surface S8 convex to the object side and a...
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