Lens for head-mounted display equipment and head-mounted equipment
A display device and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of high cost and high system heat generation, and achieve the effects of stable production performance, LCA aberration correction, and easy molding.
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[0029] Example one:
[0030] reference figure 1 , The present invention is applied to a lens for a head-mounted display device, comprising a lenticular lens 11 and a plano-concave cylindrical lens 12 arranged side by side; the lenticular lens 11 is arranged near the human eye, and the plano-concave cylindrical lens 12 is arranged at Far from the human eye; the biconvex lens 11 includes aspheric surface I13 and aspheric surface II14, plano-concave cylindrical lens includes aspheric surface III15 and aspheric surface IV16; the aspheric surface I13 is close to the human eye, aspheric surface II14 and aspheric surface III15 Set, the aspheric surface IV16 is flat.
[0031] The radii of curvature of aspheric surface I13, aspheric surface II14, aspheric surface III15 and aspheric surface IV16 are R1, R2, R3 and R4, where R1> 0, R2 <0, R1 <-R2 <100, R3 <0, R4 is infinite.
[0032] The aspheric surface I13 is smaller than the negative aspheric surface II14, so that the positive lens sheet 1 ...
Example Embodiment
[0045] Embodiment two:
[0046] The difference between this embodiment and the first embodiment is that the aspheric surface I, the aspheric surface II, and the aspheric surface III of this embodiment are odd aspheric surfaces, and the surface shape satisfies the formula:
[0047] Z = cY 2 1 + 1 - ( 1 + k ) c 2 Y 2 + X i = 1 N α i Y i ,
[0048] Where z is the coordinate along the optical axis, Y is the radial coordinate in units of lens length, c is the curvature, k is the conic coefficient, and β i Is the coefficient of each higher order term, i is a natural number for the higher power of the aspheric surface, and N is a natural number.
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