| 摘要 |
PURPOSE:To keep the parallel of a binocular even at the adjustment of its eye width by making an end part coupled with a projector supporting member of a supporting arm rotatable and slidable around/to the projector supporting member. CONSTITUTION:An engaging body 7 is fitted to the side of the projector 6 unitedly with a case 6' of the projector 6. the projector supporting member 11 consists of a supporting chip 12, a pressing chip 13 and supporting arms 14, 14 a penetration hole 15 into which a center axis 4 of the binocular is to be inserted is formed in the supporting chip 12 and the pressing chip 13, and when the projector 6 is combined with the binocular, the length of the projector 6 is made equal to the inside distance of the front and back arms 5, 5 of the binocular. Supporting arms 14, 14 are overlapped at one end part and the end part is held with the supporting chip 12 and the pressing chip 13 inbetween. The other end is supported turnably by the coupling arms 5, 5 of the binocular on the side of the projector supporting member 11. The pressing chip 13 is fixed on the supporting chip 12 with twisting members 19, 19... to assemble the units. consequently, the projection center line of the projector 6 can be kept in parallel with the binocular. |
