Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 4398786 | Collimation lens system An eyepiece or collimation lens system (22) is formed by three optically-powered lens elements (A, B, C) aligned on a common optical axis (23) and arranged to accept radiation in the infrared wavelength region from a real image (I) and provide a bundle of... | 08/16/1983 |
| 4318584 | Image stabilized optical system A telescopic optical system composed of an objective, an eyepiece and an erect prism located between the objective and the eyepiece is provided with a reticle located on the focal plane of the objective. The objective, the eyepiece and the reticle are fix... | 03/09/1982 |
| 4240689 | Telescope reticle adjusting means Means for centering a reticle on the optical axis of a telescope comprises, within the telescope body, a split collar tapped to accommodate two pairs of diametrically opposed adjustment screws which bear upon rectilinear surfaces of a centrally located re... | 12/23/1980 |
| 4105282 | Optical sight An optical sighting device for firearms, more particularly hand guns and the like, geodesic instruments and the like comprising a telescope-type optical system with an objective and an ocular, or eyepiece, element and provided with a target mark, such as ... | 08/08/1978 |
| 3948587 | Reticle and telescopic gunsight system Disclosed are telescopic gunsights for aiding shooters to achieve proper "hold-over" when shooting at targets of estimatable heights at long ranges. The reticles in the preferred telescopic gunsights comprise two or more superjacent target-spanning and ai... | 04/06/1976 |
