Electronic telescopic sight

• US 3,960,453 A
• Filed: 12/16/1974
• Issued: 06/01/1976
• Est. Priority Date: 12/20/1973
• Status: Expired due to Term

• Current Assignee: Forenade Fabriksverken
• Original Assignee: Forenade Fabriksverken
• Inventors: Svensson, Sven Torsten Arnold, Bjelvert, Sven William
• Primary Examiner(s): Corbin, John K.
• Assistant Examiner(s): Koren, Matthew W.
• Application Number:
  US05/533,132
• Time in Patent Office: 533 Days
• Field of Search: 33/231, 33/246, 33/298, 356/27, 356/252
• US Class Current: 356/252
• CPC Class Codes: F41G 1/34 combined with light source, e.g. spot light
• CPC Class Codes: F41G 3/06 with rangefinder rangefinders per se G01C
• CPC Class Codes: G02B 23/10 reflecting into the field of view additional indications, e.g. from collimator

Abstract

A telescopic sight utilizing a row of luminescence diodes defining a light point, and means for adjusting the speed of travel of the light point as a function of the speed of movement of a target. Means is further provided for extinguishing the traveling light point and for lighting a luminescence diode corresponding to the correct lead and correct superelevation when the distance to a target is set.

Claims

1. A sight comprising a telescope having:

at least one horizontal row of luminescence diodes;

means coupled to said diodes for successively lighting the diodes for generating a travelling light point in the field of view of the telescope;

means coupled to said generating means for manually adjusting the travelling speed of said light point so as to cause said light point to follow a target;

means for manually setting the distance to the target;

means coupled to said diodes for manually extinguishing the travelling light point when it has been caused to follow the target and when the distance is set; and

means for lighting one of said diodes in response to the adjusted travelling speed of the light point and to said setting of the distance, said lit diode corresponding to correct lead and correct superelevation so as to serve as an aiming point.

2. A sight according to claim 1, comprising one horizontal row of luminescence diodes;

and wherein said means for lighting one of said diodes is coupled to said distance setting means for lighting the diode corresponding to the correct superelevation.

3. A sight according to claim 1, comprising means for adjusting the height position of the image of the luminescence diodes in the field of view as a function of the distance to the target.

4. A sight according to claim 1 wherein said means for generating a moving light point includes a pulse generator (PG), a first counter (DR) coupled to said pulse generator, and means coupling selective outputs of said first counter to predetermined luminescence diodes of said at least one row to light successive luminescense diodes to generate said moving light point.

5. A sight according to claim 4 comprising diode means coupling said outputs of said first counter to said luminescence diodes.

6. A sight according to claim 4 including means (104,P2) coupled to said pulse generator (PG) for varying the pulse repetition rate thereof to cause said moving light point to move at substantially the same speed as a moving target.

7. A sight according to claim 4 wherein said means for extinguishing the travelling light point and for lighting a luminescence diode corresponding to the correct lead and correct superelevation comprises a second counter (TR), operating means (K,105,G2,G3) coupling said second counter (TR) to said pulse generator (PG) and for zeroing said first counter (DR), and first timing means (MV1) coupled to said second counter (TR) and responsive to said operating means to enable said second counter (TR) to count pulses from said pulse generator (PG) for a given period of time and to light a given luminescence diode corresponding to the final count of said second counter (TR).

8. A sight according to claim 7 comprising means (P3) coupled to said means for setting the distance (103) and coupled to said first timing means (MV1) for causing said second counter (TR) to count said pulses for a period of time which is a function of the range of the target as determined by said range adjusting means.

9. A sight according to claim 7 further comprising second timing means (MV2,G3) for extinguishing said predetermined luminescence diode and for coupling the outputs of said pulse generator (PG) to said first counter (DR) to generate said moving light point a predetermined time period after said given luminescence diode is lit by said second counter (TR).

10. A sight according to claim 4 wherein said means for generating a moving light point further comprises switching means coupled to said luminescence diodes for reversing the direction of said moving light point.