IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0343680
(2012-01-04)
|
등록번호 |
US-8705173
(2014-04-22)
|
발명자
/ 주소 |
- Peters, Victoria J.
- Lesser, Timothy
- York, Andrew W.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
10 |
초록
▼
A reticle system for a variable optical power sighting device includes front and rear reticles proximate respective front and rear focal planes of the device. Range-compensating features are provided, such as a scale and a pair of bracketing marks formed in the rear reticle which cooperate with an i
A reticle system for a variable optical power sighting device includes front and rear reticles proximate respective front and rear focal planes of the device. Range-compensating features are provided, such as a scale and a pair of bracketing marks formed in the rear reticle which cooperate with an indicator mark formed in the front reticle. The indicator mark is radially offset from the optical axis it appears to move in the field of view along the scale in response to adjustment of the optical power to thereby indicate a measurement corresponding to a size of a distant target subtended in the field of view by the bracketing marks. A two-part electronic reticle system is also disclosed utilizing similar principles of operation. The rear reticle and scale may be electroformed to reduce cost and improve light transmission relative to a glass reticle.
대표청구항
▼
1. A reticle system for a variable optical power sighting device, the sighting device including an objective lens system that produces an image of a distant target at a front focal plane located behind the objective lens system, an adjustable erector lens system located behind the front focal plane
1. A reticle system for a variable optical power sighting device, the sighting device including an objective lens system that produces an image of a distant target at a front focal plane located behind the objective lens system, an adjustable erector lens system located behind the front focal plane and configured to produce an erect image of the distant target at a rear focal plane rearward of the front focal plane, an eyepiece lens located behind the rear focal plane and configured to focus upon the erect image, and an optical power adjustment mechanism operable to adjust an axial position of at least a portion of the erector lens system along an optical axis of the erector assembly so as to adjust of a degree of image magnification of the sighting device, the reticle system comprising: a rear reticle located proximate the rear focal plane and viewable through the eyepiece in a field of view thereof superimposed upon the erect image, the rear reticle including first and second bracketing marks spaced apart from each other a pre-selected distance, and a scale including graduated measurement indicia spaced apart along a radial direction radiating from the optical axis and either increasing or decreasing in magnitude toward an outer boundary of the field of view; anda front reticle located proximate the front focal plane including an indicator portion radially offset from the optical axis so as to appear in the field of view in alignment with the scale of the rear reticle, the indicator portion thereby appearing to shift in the field of view and move along the scale in response to adjustment of the degree of image magnification to indicate a measurement corresponding to a size of a feature of the distant target subtended in the field of view by the first and second bracketing marks. 2. The reticle system of claim 1, in which the rear reticle is electroformed. 3. The reticle system of claim 2, in which the graduated measurement indicia are outlined in a post portion of the rear reticle radiating away from the optical axis. 4. The reticle system of claim 1, in which the rear reticle is etched on glass. 5. The reticle system of claim 1, in which the indicator portion of the front reticle comprises a wire spanning across a mounting ring and attached by its ends to the mounting ring. 6. The reticle system of claim 1, in which the front reticle is etched on glass. 7. The reticle system of claim 1, in which the first and second bracketing marks comprise a central crosshair and an inner end of a post portion of the rear reticle, respectively. 8. The reticle system of claim 1, in which the scale comprises a rangefinding scale wherein the indicator portion of the front reticle cooperates with the measurement indicia to display a range to the distant target in response to adjustment of the degree of image magnification until a feature of the distant target having a known or estimated reference size is subtended in the field of view by the first and second bracketing marks. 9. The reticle system of claim 1, in which the scale comprises an adjustable trophy measurement scale wherein the indicator portion of the front reticle cooperates with the measurement indicia in response to adjustment of the degree of image magnification to indicate a linear dimension, perpendicular to a line of sight of the sighting device at a predetermined measurement range, that is subtended in the field of view by the first and second bracketing marks at a selected degree of image magnification. 10. The reticle system of claim 1, in which the scale of the rear reticle includes both a rangefinding scale and a trophy measurement scale. 11. The reticle system of claim 1, further comprising an electronic reticle display responsive to adjustment of the optical power adjustment mechanism to display a holdover aiming point below the optical center. 12. The reticle system of claim 11, in which the electronic reticle display includes an illuminated reticle display located proximate the front focal plane. 13. A reticle system for a variable optical power sighting device, the sighting device mountable on a projectile weapon in alignment therewith and including an objective lens system that produces an image of a distant target at a front focal plane located behind the objective lens system, an adjustable erector lens system located behind the front focal plane and configured to produce an erect image of the distant target at a rear focal plane rearward of the front focal plane, an eyepiece lens located behind the rear focal plane and configured to focus upon the erect image, and an optical power adjustment mechanism operable to adjust an axial position of at least a portion of the erector lens system along an optical axis of the erector assembly so as to adjust of a degree of image magnification of the sighting device, the reticle system comprising: a rear reticle located proximate the rear focal plane and viewable through the eyepiece in a field of view thereof superimposed upon the erect image, the rear reticle including first and second bracketing marks spaced apart from each other a pre-selected distance; andan electronic reticle display responsive to adjustment of the optical power adjustment mechanism to display in the field of view one of several holdover aiming marks spaced apart along a vertical axis below a primary aiming point so that, when the optical power adjustment mechanism is adjusted to the degree of image magnification at which a feature of the distant target having a known or estimated reference size is subtended in the field of view by the first and second bracketing marks, the displayed one of the holdover aiming marks is superimposed on the erect image of the distant target at a point of impact on the distant target for a ballistic projectile when launched by a projectile weapon aligned with the sighting device. 14. The reticle system of claim 13, in which the electronic reticle display is located proximate the front focal plane. 15. The reticle system of claim 13, in which the electronic reticle display is included in the rear reticle proximate the rear focal plane. 16. The reticle system of claim 13, in which the primary aiming point coincides with the path of the ballistic projectile at a sighted-in range different from the range to the distant target. 17. The reticle system of claim 13, in which: the rear reticle further includes a scale including graduated measurement indicia spaced apart along a radial direction radiating from the optical axis and either increasing or decreasing in magnitude toward an outer boundary of the field of view; andthe front reticle further including an indicator portion radially offset from the optical axis so as to appear in the field of view in alignment with the scale of the rear reticle, the indicator portion thereby appearing to shift in the field of view and move along the scale in response to adjustment of the degree of image magnification to indicate a measurement corresponding to a size of a feature of the distant target subtended in the field of view by the first and second bracketing marks. 18. The reticle system of claim 17, in which the rear reticle is electroformed. 19. The reticle system of claim 18, in which the graduated measurement indicia are outlined in a post portion of the rear reticle. 20. The reticle system of claim 13, in which the rear reticle is electroformed.
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