# US 4,398,722 A · Laser beam target > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,398,722 A - Document ID: US4398722A - Status: Granted - Kind: A - Application number: 06/360,479 - Filed: 1982-03-22 - Granted: 1983-08-16 - Earliest claimed: 1982-03-22 - Assignees: International Laser Systems, Inc. - Inventors: James F. Morris; Roland Pittman - Web page: https://patentgrep.com/patent/US4398722A ## CPC - F41J 5/02: Photo-electric hit-detector systems {(comprising a light-emitting device for simulating the firing of a gun F41G3/2622; detecting by optical means G01V8/10)} - F41J: TARGETS; TARGET RANGES; BULLET CATCHERS {(targets for shooting or hurling games A63F9/0204)} ## Abstract A laser weapon simulator target apparatus is provided having a conventional target formed of a material translucent to a laser wavelength and a laser radiation detector positioned behind the target on one end portion thereof and facing in a generally parallel direction to the back of the target so that scattered radiation from a laser beam penetrating the target will be received by the radiation detector to indicate a laser beam hitting the target. The target may have a back enclosure to prevent radiation that misses the target being reflected back onto the detector. The target allows a single laser radiation detector to be utilized and at the same time allows the target to be used for live rounds or with a laser weapon simulator without changing the target. ## Claims ### Claim 1 A target device comprising in combination: a target formed of a material translucent to a laser wavelength; and radiation detector means positioned behind said target on one end portion thereof and facing in a generally parallel direction to said target, whereby scattered radiation from a laser beam penetrating said target will be received by said radiation detector means to indicate a laser beam hitting said target. ### Claim 2 (depends on 1) A target device in accordance with claim 1, including a back cover located behind said target and said radiation detection means. ### Claim 3 (depends on 1) A target device in accordance with claim 1, including a back enclosure substantially enclosing said radiation detector means between said target and said back enclosure. ### Claim 4 (depends on 2) A target device in accordance with claim 2, including a target base connected to said target having said radiation detector means attached thereto. ### Claim 5 (depends on 4) A target device in accordance with claim 4, in which said base is removably connected to said target. ### Claim 6 (depends on 5) A target device in accordance with claim 5, in which said target is a three dimensional shaped target having an open back closed with a flat panel. ### Claim 7 (depends on 6) A target device in accordance with claim 6, in which a steel band is positioned in front of said radiation detector means for preventing damage to said radiation detector means. ### Claim 8 (depends on 1) A target device in accordance with claim 1, in which said radiation detector means includes a single laser radiation detector. ### Claim 9 (depends on 3) A target device in accordance with claim 3, in which said target device includes an existing live fire target having said radiation detector means and back enclosure removably attached thereto. ### Claim 10 (depends on 1) A target device in accordance with claim 1, in which said radiation detection means is positioned behind said target at the center of the base portion facing upward in a parallel to said target. ### Claim 11 An attachment for a live ammunition target for converting the target to a laser weapon simulator target comprising in combination: a laser radiation detector adapted to be attached adjacent a live ammunition target; a target back enclosure for attachment to said ammunition target; and attaching means for attaching said back enclosure and radiation detector to said target in a manner to have said detector out of the normal line of fire of a target when mounted thereto, whereby a live fire target can be converted to a target for either live rounds or a laser weapon simulator. ### Claim 12 (depends on 11) An attachment for a live ammunition target in accordance with claim 11, in which said radiation detector is mounted behind a steel band supporting the live ammunition target to protect the radiation detector from live ammunition. ### Claim 13 (depends on 11) An attachment in accordance with claim 11, in which said radiation detector is a laser radiation detector mounted to a base and facing in a generally parallel direction to said target when attached to said target for receiving scatter radiation from a laser beam hitting said target. ### Claim 14 (depends on 13) An attachment in accordance with claim 13, in which said radiation detector is a single detector positioned in a predetermined distance behind said target adjacent the bottom of said target for receiving a scatter radiation passing through said target. ### Claim 15 (depends on 11) An attachment in accordance with claim 11, in which said radiation detector is positioned a distance behind said target bottom portion a distance approximately the height of the target divided by twenty.