FIELD: optics.
SUBSTANCE: eyepiece can be used in two-channel optoelectronic devices in various operating conditions. Eyepiece comprises beam-splitting prism in form of cube-prism, after which along the beam a plane-concave negative lens is placed, which faces the object space with a flat surface, and two biconvex positive lenses. Following relation is satisfied: ϕvol. = - (0.4÷1.2)⋅ϕok, where ϕvol. is the optical power of the negative lens; ϕok is eyepiece optical power.
EFFECT: technical result is an increase in the exit pupil removal to a value equal to fok, while maintaining high optical characteristics.
1 cl, 4 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| EYEPIECE | 2010 |
|
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| EYE-PIECE OF MICROSCOPE | 1991 |
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|
RU2727269C1 |
| OCULAR WITH REMOTE EXIT PUPIL | 0 |
|
SU1721578A1 |
