25  EP 3 800 007 A1 26  described second route. of the eyeglass lens, based on the information ofthe cup position and the informationof the attachmentangle,will be described. As described above, the lens processing device 1C mounts an eyeglass lens LE by causing the pair of chuck shafts 11C and 12C to pinch the eyeglass lens LE. Specifically, the lens processing device mounts the eyeglass lens LE by causing the cup attach- ment device 1B tomount the chuck shaft 11C onthe cup 60 attached to the eyeglass lens LE. Here, in a case where the cup 60 is always mounted at a reference po- sition BC (center of the lens surface in the example illus- trated in FIG. 5) of the eyeglass lens LE at a reference angle (angle parallel to the optical axis in the example illustrated in FIG. 5), it is not necessary to adjust the third installation position 10C and the angle of the eyeglass lens LE. However, the attachment position and angle of the cup 60 with respect to the eyeglass lens LE vary. In a case where the third installation position 10C and the angle ofthe eyeglass lens LE are notadjusted according to the attachment position and the angle of the cup 60, there is a possibility that the chuck shaft 11C may not be mounted on the cup 60. [0076] When receiving the second movement instruc- tion, based on the second work position P2, the first in- stallation position 10A, the second installation position 10B,and thepassageposition on thesecond route which are stored in the position storing process (refer to FIGs. 3A and 3B), the control unit 39 of the robot arm 3A con- trols the operation of the arm unit 30 and the arm move- ment unit 41 so that the eyeglass lens is moved from the first installation position 10A to the second installation position 10B (S29).Specifically, the controlunit39 ofthe robot arm 3A causes the holding unit 37 to hold the eye- glass lens installed at the first installation position 10A, in a state where the arm unit 30 itself is moved to the second workposition P2.Next,thecontrolunit39 moves the eyeglass lens to the second installation position 10B of the cup attachment device 1B while causing the eye- glass lens to pass through the passage position on the second route. Here, the robot arm 3A pivots the holding unit 37 around the pivot axis X1 (refer to FIG. 2) to move the eyeglass lens from the first installation position 10A to the second installation position 10B. The control unit 39 releases the eyeglass lens held by the holding unit37 to install the eyeglass lens at the second installation po- sition 10B. 5 10 15 20 25 30 35 [0080] Based on the information of the cup position which is transmitted in S33, the CPU 51 sets (adjusts) the third installation position 10C so that the chuck shaft 11C of the lens processing device 1C and the cup 60 attached to the eyeglass lens LE coincide with each oth- er. As an example, in the position storing process (refer to FIGs. 3A and 3B) according to the present embodi- ment, the third installation position 10C of the eyeglass lens LE and the angle ofthe eyeglass lens LE atthethird installation positions 10C in a case where the cup 60 is attached at the reference position BC of the eyeglass lens LE at the reference angle are stored. Based on the information of the cup position which is transmitted in S33, the CPU 51 acquires a direction and a distance in which the position of the cup 60 is displaced from the reference position BC of the eyeglass lens LE, and ad- justs the third installation position 11C of the eyeglass lens LE so that the displaced direction and distance are offset. [0077] The control unit 39 of the robot arm 3A notifies the control device 5 that the eyeglass lens is completely movedto the second installation position 10B (S30).The CPU 51 of the control device 5 transmits an instruction to start attaching the cup to the cup attachment device 1B (S31). The control unit of the cup attachment device 1B attaches the cup to the lens surface of the eyeglass lens, based on a position of the point marked by the lens meter 1A (S32). When the process in S32 is completed, the control unit of the cup attachment device 1B notifies the controldevice 5 ofinformation ofthecup position and information of the attachment angle, together with the completion notification of the process (S33). As  scribed above, the information of the cup position is in- formation of the position on the lens surface where the cup is attached to the eyeglass lens. In addition, the in- formation of the attachment angle is information of the angle of the cup attached to the eyeglass lens with re- spect to the eyeglass lens. 40 45 50 [0081] In addition, based on the information of the at- tachment angle which is transmitted in S33, the CPU 51 sets (adjusts) the angle at the third installation position 10C of the eyeglass lens LE to which the cup 60 is at- tached. As an example, in the present embodiment, based on the information of the attachment angle which is transmitted in S33, the CPU 51 acquires the displace- ment between the reference angle (angle parallel to the optical axis) and the attachment angle, and adjusts the angle of the eyeglass lens LE at the installation position 11C so that the displacement of the acquired angle is offset. [0078] When receiving the completion notification, the information ofthe cup position,andthe information ofthe attachment angle which are transmitted in S33, the CPU 51 of the control device 5 sets the third installation posi- tion 10B of the lens processing device 1C and the angle of the eyeglass lens at the third installation position 10B (S34). At least one of the information of the cup position and the information of the attachment angle may stored in advance in a memory device (for example, the memory device 52 of the control device 5). In this case, the CPU 51 may acquire the information stored in the memory device. 55 [0082] Referring back to FIGs. 4A to 4C, description will be continued. The CPU 51 of the control device 5 determines whetherornotboth the robotarm3B and the lens processing device 1C are in the operation-stopped state.When atleastone ofthe robotarm 3B and the lens [0079] Referring to FIG.5,an example of a method for setting the third installation position 10C and the angle 14