Infrared-transmissive lens and human body detecting sensor using the same
First Claim
1. A human body detecting sensor device wherein infrared rays are directed towards sensors, said device comprising:
- a movable infrared-transmissive lens comprising non-oxide glass formed of a compressed mixture of a non-oxide as a starting material and germanium and sulfur as main components; and
a plurality of pyroelectric infrared sensors arranged side-by-side with one another;
said lens being movable relative to said sensors such that said lens directs said infrared rays toward each of said infrared sensors as said lens is moved.
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Accused Products
Abstract
An infrared-transmissive lens formed by using glass including germanium and selenium or germanium and sulfur as main components and a human body detecting device including the lens and a pyroelectric infrared sensor are disclosed. With this configuration, glass having excellent transmissivity of infrared rays, no poisonous characteristic and difficulty to be crystallized is obtained and the glass is subjected to thermal pressing work to form a lens. The lens and a pyroelectric infrared sensor are combined to obtain a scanning type human body detecting sensor device. Further, the scanning type human body detecting sensor device can be used to detect a plurality of human bodies simultaneously.
39 Citations
8 Claims
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1. A human body detecting sensor device wherein infrared rays are directed towards sensors, said device comprising:
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a movable infrared-transmissive lens comprising non-oxide glass formed of a compressed mixture of a non-oxide as a starting material and germanium and sulfur as main components; and a plurality of pyroelectric infrared sensors arranged side-by-side with one another; said lens being movable relative to said sensors such that said lens directs said infrared rays toward each of said infrared sensors as said lens is moved. - View Dependent Claims (2, 3, 4, 5)
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6. A human body detecting sensor device wherein infrared rays are directed towards sensors, said device comprising:
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a movable infrared-transmissive lens comprising non-oxide glass formed of a compressed mixture of a non-oxide as a starting material and germanium and selenium as main components; and a plurality of pyroelectric infrared sensors arranged side by side one another; said lens being movable relative to said sensors such that said lens directs said infrared rays toward each of said infrared sensors as said lens is moved. - View Dependent Claims (7, 8)
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Specification