B28D1/143

Eyeglass lens processing apparatus

An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens includes: a lens chuck shaft configured to chuck the eyeglass lens; a shaft angle changing portion configured to change a shaft angle of the lens chuck shaft; a first processing tool unit including at least one spindle at which a first processing tool is provided; a second processing tool unit that is disposed to oppose the first processing tool unit and that includes at least one spindle at which a second processing tool is provided; and a controller configured to change one of the first and second processing tool unit to be used for processing the eyeglass lens to the other of the first and second processing tool by controlling driving of the shaft angle changing portion to change the shaft angle of the lens chuck shaft.

APPARATUS AND METHOD FOR MACHINING HOLE FOR OPTICAL FILM

Provided are a hole machining apparatus for an optical film, comprising: a clamping part for fixing a plurality of optical films in stacked laminated state; and a machining part for performing a hole operation on a predetermined region of the plurality of optical films so as to sequentially pass through the optical films along the laminated direction in a state where the optical films are fixed to the clamping part, wherein upon the hole operation, the machining part comprises a drill part provided to perform a primary hole machining operation and a bite unit provided to perform a secondary hole operation in the primary hole operation region. Also provided is a hole machining method for an optical film, comprising clamping a plurality of laminated optical films at a predetermined pressure in the hole machining apparatus.

Spectacle lens processing device and non-transitory computer-readable medium storing computer-readable instructions
11992972 · 2024-05-28 · ·

A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

SPECTACLE LENS PROCESSING DEVICE AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS
20190118498 · 2019-04-25 · ·

A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

Method and machine for etching optical lenses

A method for machining an optical lens via a trimming machine, includes: a step of locking the optical lens, a step of acquiring shape characteristics of the optical faces of the optical lens, a step of generating an instruction for trimming the optical lens, and a step of trimming the optical lens along a desired contour. The method also includes the following steps: a step of generating an instruction for etching the optical lens depending on the acquired shape characteristics, and a step of etching the optical lens along a line located inside the desired contour, during which a pointed etching tool of the trimming machine is controlled according to the etching instruction in such a way that the point of same continually slides against the optical face in order to score same along the line.

Method for drilling an ophthalmic lens in a helical trajectory and associated drilling device

A method for drilling an ophthalmic lens (10) includes the following steps: memorizing the desired shape and dimensions of a drill hole (701; 702; 703) to be drilled in the ophthalmic lens (10) and the position of the opening of this drill hole on one of the faces (11, 12) of the ophthalmic lens; positioning a drilling tool (80) facing the memorized position of the hole to be drilled; determining a control setpoint for the transverse movement and axial advance of the drilling tool; and drilling the ophthalmic lens according to the control setpoint. The control setpoint for the transverse movement and axial advance of the drilling tool forces the point of this drilling tool, on at least one drilling run, to follow a helical or pseudohelical trajectory depending on the desired shape and dimensions of the drill hole. An associated drilling device is also described.