JPH0257034U

JPH0257034U -

Info

Publication number: JPH0257034U
Application number: JP13587388U
Authority: JP
Priority date: 1988-10-18
Filing date: 1988-10-18
Publication date: 1990-04-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例による赤外線検出装
置を示す断面図、第２図は第１図の断面ＡＡを示
す図、第３図は本考案の一実施例による赤外線検
出装置の全体を示す図、第４図は従来の赤外線検
出装置を示す断面図、第５図は第４図の断面ＢＢ
を示す図である。１はレンズユニツト、２はホルダー、３はデユ
ワ、４はコールドフインガー、５はコンプレツサ
ー、６はコネクテイングパイプ、９は回路基板、
１０はケース、１３は赤外線検出素子、１４は第
１のＯリング、１５は第２のＯリング、１６は水
密コネクタ、１７は冷却水路、１８は絶縁油、１
９は金属ベローズ、２０は冷却液供給管、２１は
冷却液排出管、２２は冷却器、２３は冷却液、２
４はカバー、２５は第３のＯリングである。なお
、図中、同一符号は同一、又は相当部分を示す。 Fig. 1 is a sectional view showing an infrared detection device according to an embodiment of the present invention, Fig. 2 is a view showing cross section AA of Fig. 1, and Fig. 3 shows the entire infrared detection device according to an embodiment of the present invention. Figure 4 is a sectional view showing a conventional infrared detection device, and Figure 5 is a cross section BB of Figure 4.
FIG. 1 is a lens unit, 2 is a holder, 3 is a dewar, 4 is a cold finger, 5 is a compressor, 6 is a connecting pipe, 9 is a circuit board,
10 is a case, 13 is an infrared detection element, 14 is a first O-ring, 15 is a second O-ring, 16 is a watertight connector, 17 is a cooling channel, 18 is an insulating oil, 1
9 is a metal bellows, 20 is a coolant supply pipe, 21 is a coolant discharge pipe, 22 is a cooler, 23 is a coolant, 2
4 is a cover, and 25 is a third O-ring. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

a lens unit, a holder with which the lens unit is engaged, a cylindrical dewar that engages with the holder and is disposed on the same axis as the lens unit, and has an infrared detection element built therein;
A first O sealing the holder and the dewar
a ring, a cylindrical cold finger that engages with the dewar and has one end in contact with the infrared detection element, a U-shaped connecting pipe that is internally connected to the cold finger, and the connecting pipe and the inside thereof. a circuit board placed parallel to the dewar, a watertight case housing the parts, a metal bellows connected to the inside of the case and provided on the upper side of the case, and a circuit board placed parallel to the dewar; an insulating oil sealed inside, a second O-ring sealing the holder and the case, and a cover provided on the case;
A third O-ring that seals the case and the cover, a watertight connector provided on the rear side of the case, a cooling channel provided on the bottom of the case, and a cooling fluid connected to the cooling channel. a supply pipe, a coolant discharge pipe connected to the cooling waterway, a cooler connected to the coolant supply pipe and the coolant discharge pipe, the cooler, the coolant supply pipe, the cooling waterway, and the cooling An infrared detection device characterized by comprising: a cooling liquid circulating in a liquid discharge pipe.