Abstract: A holding apparatus (40) for spectrum measurement of optical elements includes a fixed board (11) having a first through hole (111), and a receiving board (12) having a plurality of receiving holes (120) with different sizes configured for holding different optical elements. The receiving board is coupled to the fixed board and rotatable relative to the fixed board about a first axis. The receiving holes are centered on a first imaginary circle which is centered on the first axis. A distance between a center of the first through hole and the axis is equal to a radius of the first imaginary circle.

Abstract: An exemplary device for film coating, is provided. The device has an evaporating unit, wherein the evaporating unit includes a driving member and a carrier. The driving member has an extending rotatable shaft. The carrier includes a main body, a plurality of branches and a plurality of crucibles. The branches each extend from the main body. The crucibles each are supported by a respective one of the branches and configured for receiving a film material therein. The rotatable shaft is engaged in the main body and thereby rotating the carrier.

Abstract: A vacuum vapor-deposition apparatus is configured for coating a plurality of substrates, and includes a motor including a rotating shaft, a supporting member, a connecting ring, and a vapor source. The rotating shaft includes a first plate fixedly mounted to an end surface of the rotating shaft. The supporting member includes a second plate corresponding to the first plate and is configured for mounting the plurality of substrates thereon. The connecting ring defines a groove along an inner circumference of the connecting ring, and includes a first semi-ring and a second semi-ring fastened to the first semi-ring. The first plate and the second plate are non-rotatably received in the groove. The first plate and the second plate are disengageable from the groove if the first and second semi-rings are unfastened. The vapor source is configured for producing evaporated material to be deposited on the substrates.

Abstract: A film coating holder includes a rotating shaft having a first portion and a second portion, a plurality of connecting devices, and a plurality of workpiece holders mounted around the rotating shaft. Each of the workpiece holders includes a relative big-end and a relative small-end. The relative small-end of each workpiece holder is pivotally connected to the first portion of the rotating shaft. The relative big-end of each workpiece holder is pivotally connected to the second portion of the rotating shaft via respective connecting devices.

Abstract: A inspection device for inspecting coated transparent components includes an opaque container, a light source and a light intensity detector. The opaque container has a first end and a second end opposite to the first end. A retaining portion is formed in the opaque container and positioned between the first and second ends and configured to retain the coated transparent components. The light source is positioned on the first end and configured to emit light passing through the coated transparent components. The light intensity detector is positioned on the second end and configured to detect the intensity of light transmitted through the coated transparent components to the light intensity detector, and calculate a light transmission rate.

Abstract: An exemplary film coating device includes a film coating holder and a film coating cover. The film coating holder includes a plurality of through holes defined therein for receiving workpieces to be coated. The film coating cover includes a first cover body and a second cover body. The first cover body includes a frame and a plurality of arms. A plurality of shelter pieces is set on the inner side of each arm. Each shelter piece is spatially arranged corresponding to one of the plurality of through holes. The second cover body is configured for covering the first cover body. The height of the second cover body is no less than that of the first cover body.

Abstract: A roll grinding apparatus includes a clamping device, a grinding wheel, a first driver, and a second driver. The clamping device includes a base, a support connected with the base and being movable relative to the base, a first clamping member and a second clamping member coupled to the first clamping member. The first clamping member and the second clamping member are rotatably mounted on the support for cooperating to clamp the workpiece. The first clamping member and the second clamping member are movable relative to the grinding wheel by movement of the support relative to the base so that the rotary axes of the first and second clamping members are adjusted to be parallel to a central axis of the grinding wheel. The first driver is connected with the first clamping member. The second driver is connected with the second clamping member.

Abstract: A holding device for workpieces, is provided. The holding device includes a holder and a suction device. The holder has a chamber, a top panel and a plurality of through holes defined in the top panel. The through holes are in communication with the chamber. The top panel is configured for supporting the workpieces over the respective through holes. The suction device is coupled to the chamber and is configured for pumping out air in the chamber, such that an atmospheric pressure of the chamber is lower than that of an exterior of the chamber, thereby holding the workpieces. A vacuum deposition apparatus using the holding device is also provided.

Abstract: A rolling-circle machine for rolling a workpiece includes at least one first rolling portion, a second rolling portion connected to the first rolling portion, and at least one adjusting screw. The first rolling portion includes one or more first concaved sections for rolling the workpiece and at least a through hole. The second rolling portion includes one or more second concaved sections for rolling the workpiece. The second concaved section forms one or more rolling slots in cooperation with the first concaved section. The adjusting screw includes a threaded post passing through the through hole of the first rolling portion and one end of the threaded post is fixed in the second rolling portion. The adjusting screw is configured for adjusting a distance between the first and the second rolling portion to roll workpieces that have different dimensions.

Abstract: A holding apparatus (40) for spectrum measurement of optical elements includes a fixed board (11) having a first through hole (111), and a receiving board (12) having a plurality of receiving holes (120) with different sizes configured for holding different optical elements. The receiving board is coupled to the fixed board and rotatable relative to the fixed board about a first axis. The receiving holes are centered on a first imaginary circle which is centered on the first axis. A distance between a center of the first through hole and the axis is equal to a radius of the first imaginary circle.

Abstract: A film coating holder includes a main body, a number of workpiece holders, and a number of driving elements. The main body defines a number of separate openings. The workpiece holders are received in the corresponding separate openings, and rotatably mounted on the main body. The driving elements are fixed to the main body and geared with the corresponding workpiece holders.