JPH0271236U

JPH0271236U -

Info

Publication number: JPH0271236U
Application number: JP14980388U
Authority: JP
Priority date: 1988-11-17
Filing date: 1988-11-17
Publication date: 1990-05-30

Description

[Brief explanation of drawings]

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ＢＢを示
す図、第３図は従来の赤外線検出装置を示す断面
図、第４図は第３図の断面ＡＡ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、１１は赤外線検出素子、１５は放
熱ブロツク、１６はヒートパイプ、１７は吸熱部
、１８は放熱部、１９はフイン、２０は第１のＯ
リング、２１は第２のＯリング、２２は第３のＯ
リング、２３は気密コネクター、２４はケース穴
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 taken along cross section BB in FIG. 1, FIG. 3 is a sectional view showing a conventional infrared detection device, and FIG. 4 3 is a diagram showing cross section AA in FIG. 3. 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, 11 is an infrared detection element, 15 is a heat radiation block, 16 is a heat pipe, 17 is a heat absorption part, 18 is a heat radiation part, 19 is a fin, and 20 is a first O
ring, 21 is the second O-ring, 22 is the third O-ring
The ring, 23 is an airtight connector, and 24 is a case hole. 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, is disposed on the same axis as the lens unit, and has an infrared detection element built therein; a cylindrical cold finger that engages with the infrared detection element 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 a U-shaped connecting pipe that engages with the other end of the cold finger. a heat radiation block that engages the heat radiation block and the heat absorption portion;
a circuit board disposed parallel to the dewar; a case housing the components and having a hole through which the heat dissipation section of the heat pipe protrudes; a compressor connected to the compressor and provided with a heat radiation fin, a fin that engages with a heat radiation portion of the heat pipe protruding from the case, a first O-ring that seals between the lens unit and the case, and the case. and a second O-ring that seals between the case and the compressor, a third O-ring that seals between the case and the compressor, and an airtight connector that is provided in the case and exchanges signals with the outside. An infrared detection device characterized by: