TWI400185B - Tray - Google Patents

Description

tray

The invention relates to a coating fixture, in particular to a tray for carrying a lens holder during coating.

At present, an ElectroMagnetic Interference tray (EMI tray) for coating is used to carry a plurality of lens holders in a vacuum chamber to facilitate a plating machine to plate an electromagnetic interference preventing film on the outer surface of the plurality of lens holders. The lens holder includes a lens barrel and a lens holder for receiving the lens barrel. The tray includes a plurality of first bodies for carrying the mirror base, a plurality of second bodies respectively fixed to the first body, and a plurality of through holes vertically extending through each of the first body and each of the second bodies. The second body is received in the lens holder and abuts the lens barrel, and the through hole and the lens barrel together form a strip-shaped through hole for a plunger pin to pass through. The plunger pin is received in the strip-shaped through hole to fix the lens holder to the tray.

However, when the tray carrying the lens holder is evacuated in the vacuum chamber, due to the depreciation of the air extractor, the evacuator is loaded with a large load, which may cause the evacuator to be completely removed. Gas inside the lens holder (inside the lens holder and in the through hole). The heating during the coating increases the gas pressure in the vacuum chamber, and the gas is easily diffused from the inside of the lens holder and the through hole into the vacuum chamber, thereby causing the vacuum in the vacuum chamber to decrease, thereby reducing the lens holder. Coating quality. Especially in the case where the number of coated trays is relatively large, the amount of vacuum in the vacuum chamber is particularly significant.

In view of this, it is necessary to provide a tray that can improve the quality of the coating.

A tray for holding a plurality of lens holders for vacuum coating. The lens holder includes a hollow lens barrel and a hollow lens holder for housing the lens barrel. The tray includes a plurality of arrays of carrier units, each of which is used to secure a lens holder. The carrying unit includes a first body for carrying the lens holder, a second body fixed to the first body, and a through hole vertically extending through the first body and the second body. When the carrying unit fixes the lens holder, the lens holder is placed on the first body, the second body is received in the lens holder and abuts the lens barrel, and the through hole and the lens barrel together form a A plunger pin passes through the strip-shaped through hole. The first body is provided with a plurality of vent holes that communicate with the interior of the lens holder.

Compared with the prior art, the tray is provided with a plurality of vent holes communicating with the inside of the lens holder to ensure that the gas in the lens holder is smoothly diffused by the vent hole when vacuuming, thereby improving the coating quality of the lens holder.

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 and FIG. 2 together, a tray 10 according to an embodiment of the present invention is provided. The tray 10 includes a plurality of arrays of carrier units 101, each of which is used to secure a lens holder 20 for vacuum coating. The lens holder 20 includes a lens barrel 21 and a hollow lens holder 23 for housing the lens barrel 21.

Referring to FIG. 3 , the carrying unit 101 includes a first body 11 and a second body 13 . The first body 11 is used to carry the lens holder 23 of the lens holder 20 . The second body 13 is fixed on the first body 11. The carrying unit 101 further includes a through hole 15 extending through the first body 11 and the second body 13 vertically. The aperture of the through hole 15 is the same as the aperture of the lens barrel 21.

When the lens unit is fixed to the lens holder 20, the lens holder 23 is placed on the first body 11. The second body 13 is received in the lens holder 23 and abuts the lens barrel 21, and the through hole 15 is The lens barrel 21 collectively constitutes a strip-shaped through hole 40 through which a plunger pin 30 passes. The plunger pin 30 is received in the strip-shaped through hole 40 such that the lens holder 20 carried on the carrier unit 101 does not move due to the shaking of the tray 10. The first body 11 defines at least one venting opening 19 communicating with the interior of the mirror base 23. The size and shape of the vent hole 19 are not limited. In the embodiment, the tray 10 is made of a plastic material, and the first body 11 and the second body 13 are integrally formed.

When the tray 10 carries the lens holder 20 and evacuates in a vacuum coating chamber (not shown), since the inside of the holder 23 communicates with the vent 19, the air trapped in the holder 23 can be completely evacuated. The vacuum coating chamber is ensured to be in a vacuum state, thereby improving the coating yield of the lens holder 20. At the same time, the tray 10 has a simple structure and is economical and durable; and the tray 10 makes the number of coating plates for coating in the vacuum coating chamber no longer limited, thereby improving the coating production efficiency of the lens holder 20.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

10‧‧‧Tray
101‧‧‧ Carrying unit
11‧‧‧Ontology
13‧‧‧Second ontology
15‧‧‧through hole
19‧‧‧Ventinel
20‧‧‧Lens mount
21‧‧‧Mirror tube
23‧‧‧Mirror base
30‧‧‧Plunger latch
40‧‧‧ strip through holes

FIG. 1 is a schematic perspective view of a tray provided by an embodiment of the present invention.

2 is a schematic structural view of a carrying unit of the tray of FIG. 1 , the carrying unit carrying a lens holder.

Figure 3 is a cross-sectional view taken along line III-III of Figure 1.

101‧‧‧ Carrying unit

11‧‧‧First Ontology

13‧‧‧Second ontology

15‧‧‧through hole

19‧‧‧Ventinel

20‧‧‧Lens mount

21‧‧‧Mirror tube

23‧‧‧Mirror base

30‧‧‧Plunger latch

40‧‧‧ strip through holes

Claims (4)

A tray for fixing a plurality of lens holders for vacuum coating, the lens holder comprising a hollow lens barrel and a hollow lens holder for housing the lens barrel, the tray comprising a plurality of arrays of carrying units, each carrying The unit is configured to fix a lens holder, the carrier unit includes a first body for carrying the lens holder, a second body fixed to the first body, and a first body and the second body extending perpendicularly through the first body a through hole, when the carrying unit fixes the lens holder, the lens holder is placed on the first body, the second body is received in the lens holder and abuts the lens barrel, and the through hole and the lens barrel Together, a strip-shaped through hole for a plunger pin is formed, and the first body is provided with a plurality of vent holes communicating with the inside of the lens holder. The tray of claim 1, wherein the through hole has the same aperture as the lens barrel. The tray of claim 1, wherein the tray is made of a plastic material. The tray of claim 1, wherein the first body and the second body are integrally formed.